| File: | proxy/nsproxylib.c |
| Warning: | line 2315, column 13 Duplicate code detected |
| Note: | line 2316, column 13 Similar code here |
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| 1 | /* |
| 2 | * The contents of this file are subject to the Mozilla Public License |
| 3 | * Version 1.1 (the "License"); you may not use this file except in |
| 4 | * compliance with the License. You may obtain a copy of the License at |
| 5 | * http://www.mozilla.org/. |
| 6 | * |
| 7 | * Software distributed under the License is distributed on an "AS IS" |
| 8 | * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See |
| 9 | * the License for the specific language governing rights and limitations |
| 10 | * under the License. |
| 11 | * |
| 12 | * The Original Code is AOLserver Code and related documentation |
| 13 | * distributed by AOL. |
| 14 | * |
| 15 | * The Initial Developer of the Original Code is America Online, |
| 16 | * Inc. Portions created by AOL are Copyright (C) 1999 America Online, |
| 17 | * Inc. All Rights Reserved. |
| 18 | * |
| 19 | * Alternatively, the contents of this file may be used under the terms |
| 20 | * of the GNU General Public License (the "GPL"), in which case the |
| 21 | * provisions of GPL are applicable instead of those above. If you wish |
| 22 | * to allow use of your version of this file only under the terms of the |
| 23 | * GPL and not to allow others to use your version of this file under the |
| 24 | * License, indicate your decision by deleting the provisions above and |
| 25 | * replace them with the notice and other provisions required by the GPL. |
| 26 | * If you do not delete the provisions above, a recipient may use your |
| 27 | * version of this file under either the License or the GPL. |
| 28 | */ |
| 29 | |
| 30 | /* |
| 31 | * nsproxylib.c -- |
| 32 | * |
| 33 | * Library for ns_proxy commands and main loops. |
| 34 | * |
| 35 | * TODO: |
| 36 | * |
| 37 | * Expand the Req structure to pass: |
| 38 | * |
| 39 | * o. Array of limits as with get/setrlimit |
| 40 | * o. Chroot of the worker process |
| 41 | * o. Limit duration of the execution in the worker process |
| 42 | * o. ... |
| 43 | * |
| 44 | * Add -onexit for worker process to run on teardown |
| 45 | * Add channels to proxy, so we can talk to it |
| 46 | */ |
| 47 | |
| 48 | #include "nsproxy.h" |
| 49 | |
| 50 | static const char * NS_EMPTY_STRING = ""; |
| 51 | |
| 52 | #ifdef _WIN32 |
| 53 | # define SIGKILL9 9 |
| 54 | # define SIGTERM15 15 |
| 55 | |
| 56 | ssize_t writev(int fildes, const struct iovec *iov, int iovcnt); |
| 57 | |
| 58 | /* |
| 59 | * Minimal writev() and readv() emulation for windows. Must be probably |
| 60 | * extended to be useful. |
| 61 | */ |
| 62 | ssize_t writev(int fildes, const struct iovec *iov, int iovcnt) |
| 63 | { |
| 64 | ssize_t result = 0; |
| 65 | int i; |
| 66 | |
| 67 | for (i = 0; i < iovcnt; i++) { |
| 68 | ssize_t written = ns_writewrite(fildes, iov[i].iov_base, iov[i].iov_len); |
| 69 | |
| 70 | if (written != iov[i].iov_len) { |
| 71 | /* |
| 72 | * Give up, since we did not receive the expected data. |
| 73 | * Maybe overly cautious and we have to handle partial |
| 74 | * writes. |
| 75 | */ |
| 76 | result = -1; |
| 77 | break; |
| 78 | } else { |
| 79 | result += written; |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | return result; |
| 84 | } |
| 85 | |
| 86 | ssize_t readv(int fildes, const struct iovec *iov, int iovcnt) |
| 87 | { |
| 88 | ssize_t result = 0; |
| 89 | int i; |
| 90 | |
| 91 | for (i = 0; i < iovcnt; i++) { |
| 92 | ssize_t read = ns_readread(fildes, iov[i].iov_base, iov[i].iov_len); |
| 93 | |
| 94 | if (read < 0) { |
| 95 | result = -1; |
| 96 | break; |
| 97 | } else { |
| 98 | result += read; |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | return result; |
| 103 | } |
| 104 | #else |
| 105 | # include <grp.h> |
| 106 | # include <poll.h> |
| 107 | #endif |
| 108 | |
| 109 | /* |
| 110 | * It is pain in the neck to get a satisfactory definition of |
| 111 | * u_int_XX_t or uintXX_t as different OS'es do that in different |
| 112 | * header files and sometimes even do not define such types at all. |
| 113 | * We choose to define them ourselves here and stop the blues. |
| 114 | * This relies on the assumption that on both 32 and 64 bit machines |
| 115 | * an int is always 32 and short is always 16 bits. |
| 116 | */ |
| 117 | |
| 118 | typedef unsigned int uint32; |
| 119 | typedef unsigned short uint16; |
| 120 | |
| 121 | #define MAJOR_VERSION1 1 |
| 122 | #define MINOR_VERSION1 1 |
| 123 | |
| 124 | /* |
| 125 | * The following structure defines a running proxy worker process. |
| 126 | */ |
| 127 | |
| 128 | typedef struct Worker { |
| 129 | int rfd; |
| 130 | int wfd; |
| 131 | int signal; |
| 132 | int sigsent; |
| 133 | int twait; |
| 134 | pid_t pid; |
| 135 | Ns_Time expire; |
| 136 | struct Pool *poolPtr; |
| 137 | struct Worker *nextPtr; |
| 138 | } Worker; |
| 139 | |
| 140 | /* |
| 141 | * The following structures defines a proxy request and response. |
| 142 | * The lengths are in network order to support later proxy |
| 143 | * operation over a socket connection. |
| 144 | */ |
| 145 | |
| 146 | typedef struct Req { |
| 147 | uint32 len; /* Length of the message */ |
| 148 | uint16 major; /* Major version number */ |
| 149 | uint16 minor; /* Minor version number */ |
| 150 | } Req; |
| 151 | |
| 152 | typedef struct Res { |
| 153 | uint32 code; |
| 154 | uint32 clen; |
| 155 | uint32 ilen; |
| 156 | uint32 rlen; |
| 157 | } Res; |
| 158 | |
| 159 | /* |
| 160 | * The following structure defines a proxy connection allocated |
| 161 | * from a pool. |
| 162 | */ |
| 163 | |
| 164 | typedef enum { |
| 165 | Idle, /* Ready to receive a script */ |
| 166 | Busy, /* Evaluating a script */ |
| 167 | Done /* Result is pending */ |
| 168 | } ProxyState; |
| 169 | |
| 170 | typedef struct ProxyConf { |
| 171 | Ns_Time tget; /* Timeout when getting proxy handles */ |
| 172 | Ns_Time teval; /* Timeout when evaluating scripts */ |
| 173 | Ns_Time tsend; /* Timeout to send data to proxy over pipe */ |
| 174 | Ns_Time trecv; /* Timeout to receive results over pipe */ |
| 175 | Ns_Time twait; /* Timeout to wait for workers to die */ |
| 176 | Ns_Time tidle; /* Timeout for worker to be idle */ |
| 177 | Ns_Time logminduration; /* Log commands taking longer than this duration */ |
| 178 | int maxruns; /* Max number of proxy uses */ |
| 179 | } ProxyConf; |
| 180 | |
| 181 | typedef struct Proxy { |
| 182 | struct Proxy *nextPtr; /* Next in list of proxies */ |
| 183 | struct Proxy *runPtr; /* Next in list of running proxies */ |
| 184 | struct Pool *poolPtr; /* Pointer to proxy's pool */ |
| 185 | char *id; /* Proxy unique string id */ |
| 186 | int numruns; /* Number of runs of this proxy */ |
| 187 | ProxyState state; /* Current proxy state (idle, busy etc) */ |
| 188 | ProxyConf conf; /* Copy from the pool configuration */ |
| 189 | Worker *workerPtr; /* Running worker process, if any */ |
| 190 | Ns_Time when; /* Absolute time when the proxy is used */ |
| 191 | Tcl_HashEntry *idPtr; /* Pointer to proxy table entry */ |
| 192 | Tcl_HashEntry *cntPtr; /* Pointer to count of proxies allocated */ |
| 193 | Tcl_DString in; /* Request dstring */ |
| 194 | Tcl_DString out; /* Response dstring */ |
| 195 | Tcl_Command cmdToken; /* Proxy Tcl command */ |
| 196 | Tcl_Interp *interp; /* Interp holding the proxy's Tcl command */ |
| 197 | } Proxy; |
| 198 | |
| 199 | /* |
| 200 | * The following structure defines a proxy pool. |
| 201 | */ |
| 202 | |
| 203 | typedef enum { |
| 204 | Stopped, /* Initial (startup) state */ |
| 205 | Starting, /* It is in the process of startup */ |
| 206 | Running, /* Operating on pools and tearing down workers */ |
| 207 | Sleeping, /* Sleeping on cond var and waiting for work */ |
| 208 | Awaken, /* Help state to distinguish from running */ |
| 209 | Stopping /* Teardown of the thread initiated */ |
| 210 | } ReaperState; |
| 211 | |
| 212 | typedef struct Pool { |
| 213 | const char *name; /* Name of pool */ |
| 214 | struct Proxy *firstPtr; /* First in list of avail proxies */ |
| 215 | struct Proxy *runPtr; /* First in list of running proxies */ |
| 216 | const char *exec; /* Worker executable */ |
| 217 | const char *init; /* Init script to eval on proxy start */ |
| 218 | const char *reinit; /* Re-init scripts to eval on proxy put */ |
| 219 | int waiting; /* Thread waiting for handles */ |
| 220 | int maxworker; /* Max number of allowed worker processes */ |
| 221 | int nfree; /* Current number of available proxy handles */ |
| 222 | int nused; /* Current number of used proxy handles */ |
| 223 | uintptr_t nextid; /* Next in proxy unique ids; corresponds to nr of workers */ |
| 224 | ProxyConf conf; /* Collection of config options to pass to proxy */ |
| 225 | Ns_Set *env; /* Set with environment to pass to proxy */ |
| 226 | Ns_Mutex lock; /* Lock around the pool */ |
| 227 | Ns_Cond cond; /* Cond for use while allocating handles */ |
| 228 | Ns_Time runTime; /* cumulated run times */ |
| 229 | uintptr_t nruns; /* number of runs in this pool */ |
| 230 | } Pool; |
| 231 | |
| 232 | #define MIN_IDLE_TIMEOUT_SEC10 10 /* == 10 seconds */ |
| 233 | |
| 234 | /* |
| 235 | * The following enum lists all possible error conditions. |
| 236 | */ |
| 237 | |
| 238 | typedef enum Err { |
| 239 | ENone, |
| 240 | EBusy, |
| 241 | EDead, |
| 242 | EDeadlock, |
| 243 | EExec, |
| 244 | EGetTimeout, |
| 245 | EIdle, |
| 246 | EImport, |
| 247 | EInit, |
| 248 | ERange, |
| 249 | ERecv, |
| 250 | ESend, |
| 251 | ENoWait, |
| 252 | EEvalTimeout |
| 253 | } Err; |
| 254 | |
| 255 | static const char *errMsg[] = { |
| 256 | "no error", |
| 257 | "currently evaluating a script", |
| 258 | "child process died", |
| 259 | "allocation deadlock", |
| 260 | "could not create child process", |
| 261 | "timeout waiting for handle", |
| 262 | "no script evaluating", |
| 263 | "invalid response", |
| 264 | "init script failed", |
| 265 | "insufficient handles", |
| 266 | "result recv failed", |
| 267 | "script send failed", |
| 268 | "no wait for script result", |
| 269 | "timeout waiting for evaluation", |
| 270 | NULL((void*)0) |
| 271 | }; |
| 272 | |
| 273 | static const char *errCode[] = { |
| 274 | "ENone", |
| 275 | "EBusy", |
| 276 | "EDead", |
| 277 | "EDeadlock", |
| 278 | "EExec", |
| 279 | "EGetTimeout", |
| 280 | "EIdle", |
| 281 | "EImport", |
| 282 | "EInit", |
| 283 | "ERange", |
| 284 | "ERecv", |
| 285 | "ESend", |
| 286 | "ENoWait", |
| 287 | "EEvalTimeout", |
| 288 | NULL((void*)0) |
| 289 | }; |
| 290 | |
| 291 | static Ns_LogSeverity Ns_LogNsProxyDebug = 0; |
| 292 | |
| 293 | |
| 294 | /* |
| 295 | * Static functions defined in this file. |
| 296 | */ |
| 297 | |
| 298 | static Tcl_ObjCmdProc ProxyObjCmd; |
| 299 | static Tcl_ObjCmdProc ConfigureObjCmd; |
| 300 | static Tcl_ObjCmdProc GetObjCmd; |
| 301 | static Tcl_ObjCmdProc StatsObjCmd; |
| 302 | static Tcl_ObjCmdProc ClearObjCmd; |
| 303 | static Tcl_ObjCmdProc StopObjCmd; |
| 304 | |
| 305 | static Tcl_ObjCmdProc RunProxyObjCmd; |
| 306 | static Tcl_CmdDeleteProc DelProxyProc; |
| 307 | static Tcl_InterpDeleteProc DeleteData; |
| 308 | |
| 309 | static Ns_ShutdownProc Shutdown; |
| 310 | |
| 311 | static Pool* GetPool(const char *poolName, const InterpData *idataPtr) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 312 | static void FreePool(Pool *poolPtr) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 313 | |
| 314 | static Proxy* CreateProxy(Pool *poolPtr) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 315 | static Err PopProxy(Pool *poolPtr, Proxy **proxyPtrPtr, int nwant, const Ns_Time *timePtr) |
| 316 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 317 | static void PushProxy(Proxy *proxyPtr) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 318 | static Proxy* GetProxy(const char *proxyId, InterpData *idataPtr) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 319 | |
| 320 | static int Eval(Tcl_Interp *interp, Proxy *proxyPtr, const char *script, const Ns_Time *timeoutPtr) |
| 321 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 322 | |
| 323 | static Err Send(Tcl_Interp *interp, Proxy *proxyPtr, const char *script) |
| 324 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 325 | static Err Wait(Tcl_Interp *interp, Proxy *proxyPtr, const Ns_Time *timeoutPtr) |
| 326 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 327 | static Err Recv(Tcl_Interp *interp, Proxy *proxyPtr, int *resultPtr) |
| 328 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))) NS_GNUC_NONNULL(3)__attribute__((__nonnull__(3))); |
| 329 | |
| 330 | static void GetStats(const Proxy *proxyPtr) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 331 | |
| 332 | static Err CheckProxy(Tcl_Interp *interp, Proxy *proxyPtr) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 333 | static int ReleaseProxy(Tcl_Interp *interp, Proxy *proxyPtr) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 334 | static void CloseProxy(Proxy *proxyPtr) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 335 | static int CloseWorkerOfProxy(Proxy *proxyPtr, const char *proxyId, const Ns_Time *timePtr) |
| 336 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 337 | |
| 338 | static void FreeProxy(Proxy *proxyPtr) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 339 | static void ResetProxy(Proxy *proxyPtr) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 340 | static void ProxyError(Tcl_Interp *interp, Err err) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 341 | static void FmtActiveProxy(Tcl_Interp *interp, const Proxy *proxyPtr) |
| 342 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 343 | |
| 344 | static void ReleaseHandles(Tcl_Interp *interp, InterpData *idataPtr) |
| 345 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 346 | static Worker* ExecWorker(Tcl_Interp *interp, const Proxy *proxyPtr) |
| 347 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 348 | static Err CreateWorker(Tcl_Interp *interp, Proxy *proxyPtr) |
| 349 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 350 | |
| 351 | static void SetExpire(Worker *workerPtr, const Ns_Time *timePtr) |
| 352 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 353 | static bool_Bool SendBuf(const Worker *workerPtr, const Ns_Time *timePtr, const Tcl_DString *dsPtr) |
| 354 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(3)__attribute__((__nonnull__(3))); |
| 355 | static bool_Bool RecvBuf(const Worker *workerPtr, const Ns_Time *timePtr, Tcl_DString *dsPtr) |
| 356 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(3)__attribute__((__nonnull__(3))); |
| 357 | static bool_Bool WaitFd(int fd, short events, long ms); |
| 358 | |
| 359 | static int Import(Tcl_Interp *interp, const Tcl_DString *dsPtr, int *resultPtr) |
| 360 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))) NS_GNUC_NONNULL(3)__attribute__((__nonnull__(3))); |
| 361 | static void Export(Tcl_Interp *interp, int code, Tcl_DString *dsPtr) |
| 362 | NS_GNUC_NONNULL(3)__attribute__((__nonnull__(3))); |
| 363 | |
| 364 | static void UpdateIov(struct iovec *iov, size_t n) |
| 365 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 366 | static void SetOpt(const char *str, char const **optPtr) |
| 367 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 368 | static void ReaperThread(void *UNUSED(arg)UNUSED_arg __attribute__((__unused__))); |
| 369 | static void CloseWorker(Worker *workerPtr, const Ns_Time *timePtr) |
| 370 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 371 | static void ReapProxies(void); |
| 372 | static long GetTimeDiff(const Ns_Time *timePtr) |
| 373 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 374 | |
| 375 | static void AppendObj(Tcl_Obj *listObj, const char *flag, Tcl_Obj *obj) |
| 376 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 377 | static Tcl_Obj* StringObj(const char* chars); |
| 378 | |
| 379 | /* |
| 380 | * Static variables defined in this file. |
| 381 | */ |
| 382 | |
| 383 | static Tcl_HashTable pools; /* Tracks proxy pools */ |
| 384 | |
| 385 | static ReaperState reaperState = Stopped; |
| 386 | |
| 387 | static Ns_Cond pcond = NULL((void*)0); /* Those are used to control access to */ |
| 388 | static Ns_Mutex plock = NULL((void*)0); /* The list of Worker structures of worker */ |
| 389 | static Worker *firstClosePtr = NULL((void*)0); /* Processes which are being closed. */ |
| 390 | |
| 391 | static Tcl_DString defexec; /* Stores full path of the proxy executable */ |
| 392 | |
| 393 | |
| 394 | /* |
| 395 | *---------------------------------------------------------------------- |
| 396 | * |
| 397 | * Nsproxy_Init -- |
| 398 | * |
| 399 | * libnsproxy initialization. |
| 400 | * |
| 401 | * Results: |
| 402 | * None. |
| 403 | * |
| 404 | * Side effects: |
| 405 | * None. |
| 406 | * |
| 407 | *---------------------------------------------------------------------- |
| 408 | */ |
| 409 | #define stringify(s)"s" #s |
| 410 | void |
| 411 | Nsproxy_LibInit(void) |
| 412 | { |
| 413 | static bool_Bool initialized = NS_FALSE0; |
| 414 | |
| 415 | if (!initialized) { |
| 416 | initialized = NS_TRUE1; |
| 417 | |
| 418 | Ns_MutexInit(&plock); |
| 419 | Ns_MutexSetName(&plock, "ns:proxy"); |
| 420 | |
| 421 | Nsd_LibInit(); |
| 422 | |
| 423 | Tcl_DStringInit(&defexec); |
| 424 | Ns_BinPath(&defexec, NSPROXY_HELPER"nsproxy-helper", (char *)0L); |
| 425 | |
| 426 | Tcl_InitHashTable(&pools, TCL_STRING_KEYS(0)); |
| 427 | Ns_RegisterAtShutdown(Shutdown, NULL((void*)0)); |
| 428 | Ns_RegisterProcInfo((ns_funcptr_t)Shutdown, "nsproxy:shutdown", NULL((void*)0)); |
| 429 | |
| 430 | Ns_LogNsProxyDebug = Ns_CreateLogSeverity("Debug(nsproxy)"); |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | |
| 435 | /* |
| 436 | *---------------------------------------------------------------------- |
| 437 | * |
| 438 | * Ns_ProxyTclInit -- |
| 439 | * |
| 440 | * Initialize the Tcl interface. |
| 441 | * |
| 442 | * Results: |
| 443 | * TCL_OK. |
| 444 | * |
| 445 | * Side effects: |
| 446 | * Adds the ns_proxy command to given interp. |
| 447 | * |
| 448 | *---------------------------------------------------------------------- |
| 449 | */ |
| 450 | |
| 451 | int |
| 452 | Ns_ProxyTclInit(Tcl_Interp *interp) |
| 453 | { |
| 454 | InterpData *idataPtr; |
| 455 | |
| 456 | idataPtr = ns_calloc(1u, sizeof(InterpData)); |
| 457 | Tcl_InitHashTable(&idataPtr->ids, TCL_STRING_KEYS(0)); |
| 458 | Tcl_InitHashTable(&idataPtr->cnts, TCL_ONE_WORD_KEYS(1)); |
| 459 | Tcl_SetAssocData(interp, ASSOC_DATA"nsproxy:data", DeleteData, idataPtr); |
| 460 | (void)Tcl_CreateObjCommand(interp, "ns_proxy", ProxyObjCmd, idataPtr, NULL((void*)0)); |
| 461 | |
| 462 | return TCL_OK0; |
| 463 | } |
| 464 | |
| 465 | |
| 466 | /* |
| 467 | *---------------------------------------------------------------------- |
| 468 | * |
| 469 | * Ns_ProxyMain -- |
| 470 | * |
| 471 | * Main loop for nsproxy worker processes. Initialize Tcl interp and loop |
| 472 | * processing requests. On communication errors or when the peer closes |
| 473 | * its write-pipe, worker process exits gracefully. |
| 474 | * |
| 475 | * Results: |
| 476 | * Always zero. |
| 477 | * |
| 478 | * Side effects: |
| 479 | * None. |
| 480 | * |
| 481 | *---------------------------------------------------------------------- |
| 482 | */ |
| 483 | |
| 484 | int |
| 485 | Ns_ProxyMain(int argc, char *const*argv, Tcl_AppInitProc *init) |
| 486 | { |
| 487 | Tcl_Interp *interp; |
| 488 | Worker proc; |
| 489 | int result, max; |
| 490 | Tcl_DString in, out; |
| 491 | const char *script, *dots, *uarg = NULL((void*)0), *user; |
| 492 | char *group = NULL((void*)0), *active; |
| 493 | uint16 major, minor; |
| 494 | size_t activeSize; |
| 495 | |
| 496 | /* |
| 497 | * The call to Tcl_FindExecutable() must be done before we ever |
| 498 | * attempt any Tcl related call. |
| 499 | */ |
| 500 | Tcl_FindExecutable(argv[0]); |
| 501 | |
| 502 | Nsproxy_LibInit(); |
| 503 | |
| 504 | if (argc > 4 || argc < 3) { |
| 505 | char *pgm = strrchr(argv[0], INTCHAR('/')((int)((unsigned char)(('/'))))); |
| 506 | Ns_Fatal("usage: %s pool id ?command?", (pgm != NULL((void*)0)) ? (pgm+1) : argv[0]); |
| 507 | } |
| 508 | if (argc < 4) { |
| 509 | active = NULL((void*)0); |
| 510 | activeSize = 0; |
| 511 | max = -1; |
| 512 | } else { |
| 513 | active = argv[3]; |
| 514 | activeSize = strlen(active); |
| 515 | max = (int)activeSize - 8; |
| 516 | if (max < 0) { |
| 517 | active = NULL((void*)0); |
| 518 | } |
| 519 | } |
| 520 | |
| 521 | /* |
| 522 | * Initialize Worker structure |
| 523 | */ |
| 524 | memset(&proc, 0, sizeof(proc)); |
| 525 | |
| 526 | /* |
| 527 | * Move the proxy input and output fd's from 0 and 1 to avoid |
| 528 | * protocol errors with scripts accessing stdin and stdout. |
| 529 | * Stdin is open on /dev/null and stdout is dup'ed to stderr. |
| 530 | */ |
| 531 | |
| 532 | major = htons(MAJOR_VERSION)__bswap_16 (1); |
| 533 | minor = htons(MINOR_VERSION)__bswap_16 (1); |
| 534 | proc.pid = NS_INVALID_PID(-1); |
| 535 | |
| 536 | proc.rfd = ns_dup(0)fcntl((0), 1030, 0); |
| 537 | if (proc.rfd < 0) { |
| 538 | Ns_Fatal("nsproxy: dup: %s", strerror(errno(*__errno_location ()))); |
| 539 | } |
| 540 | proc.wfd = ns_dup(1)fcntl((1), 1030, 0); |
| 541 | if (proc.wfd < 0) { |
| 542 | Ns_Fatal("nsproxy: dup: %s", strerror(errno(*__errno_location ()))); |
| 543 | } |
| 544 | ns_closeclose(0); |
| 545 | if (ns_openopen("/dev/null", O_RDONLY00 | O_CLOEXEC02000000, 0) != 0) { |
| 546 | Ns_Fatal("nsproxy: open: %s", strerror(errno(*__errno_location ()))); |
| 547 | } |
| 548 | ns_closeclose(1); |
| 549 | if (ns_dup(2)fcntl((2), 1030, 0) != 1) { |
| 550 | Ns_Fatal("nsproxy: dup: %s", strerror(errno(*__errno_location ()))); |
| 551 | } |
| 552 | |
| 553 | /* |
| 554 | * Make sure possible child processes do not inherit this one. |
| 555 | * As, when the user evaluates the "exec" command, the child |
| 556 | * process(es) will otherwise inherit the descriptor and keep |
| 557 | * it open even if the proxy process is killed in the meantime. |
| 558 | * This will of course block the caller, possibly forever. |
| 559 | */ |
| 560 | |
| 561 | (void)Ns_CloseOnExec(proc.wfd); |
| 562 | |
| 563 | /* |
| 564 | * Create the interp, initialize with user init proc, if any. |
| 565 | */ |
| 566 | |
| 567 | interp = Ns_TclCreateInterp(); |
| 568 | if (init != NULL((void*)0)) { |
| 569 | if ((*init)(interp) != TCL_OK0) { |
| 570 | Ns_Fatal("nsproxy: init: %s", Tcl_GetStringResult(interp)); |
| 571 | } |
| 572 | } |
| 573 | |
| 574 | /* |
| 575 | * Parse encoded user/group information. Those are |
| 576 | * optionally encoded in the passed pool name: |
| 577 | * |
| 578 | * pool?:username_or_uid?:groupname_or_gid?? |
| 579 | * |
| 580 | * Examples: |
| 581 | * |
| 582 | * mypool |
| 583 | * mypool:myname |
| 584 | * mypool:myname:mygroup |
| 585 | * |
| 586 | * The uid/gid fiddling code is replicated from the Ns_Main(). |
| 587 | * |
| 588 | * etc... |
| 589 | */ |
| 590 | |
| 591 | user = strchr(argv[1], INTCHAR(':')((int)((unsigned char)((':'))))); |
| 592 | if (user != NULL((void*)0)) { |
| 593 | uarg = ns_strdup(user + 1); |
| 594 | user = uarg; |
| 595 | group = strchr(user, INTCHAR(':')((int)((unsigned char)((':'))))); |
| 596 | if (group != NULL((void*)0)) { |
| 597 | *group = 0; |
| 598 | group++; |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | if (Ns_SetGroup(group) == NS_ERROR || Ns_SetUser(user) == NS_ERROR) { |
| 603 | Ns_Fatal("nsproxy: unable to switch to user '%s', group '%s'", user, group); |
| 604 | } |
| 605 | |
| 606 | /* |
| 607 | * Loop continuously processing proxy requests. |
| 608 | */ |
| 609 | |
| 610 | Tcl_DStringInit(&in); |
| 611 | Tcl_DStringInit(&out); |
| 612 | |
| 613 | while (RecvBuf(&proc, NULL((void*)0), &in) == NS_TRUE1) { |
| 614 | Req req, *reqPtr = &req; |
| 615 | uint32_t len; |
| 616 | |
| 617 | if (Tcl_DStringLength(&in)((&in)->length) < (int)sizeof(Req)) { |
| 618 | break; |
| 619 | } |
| 620 | |
| 621 | memcpy(&req, in.string, sizeof(req)); |
| 622 | |
| 623 | if (reqPtr->major != major || reqPtr->minor != minor) { |
| 624 | Ns_Fatal("nsproxy: version mismatch"); |
| 625 | } |
| 626 | len = ntohl(reqPtr->len)__bswap_32 (reqPtr->len); |
| 627 | if (len == 0) { |
| 628 | Export(NULL((void*)0), TCL_OK0, &out); |
| 629 | } else if (len > 0) { |
| 630 | script = Tcl_DStringValue(&in)((&in)->string) + sizeof(Req); |
| 631 | if (active != NULL((void*)0)) { |
| 632 | int n = (int)len; |
| 633 | |
| 634 | if (n < max) { |
| 635 | dots = NS_EMPTY_STRING; |
| 636 | } else { |
| 637 | dots = " ..."; |
| 638 | n = max; |
| 639 | } |
| 640 | snprintf(active, activeSize, "{%.*s%s}", n, script, dots)__builtin___snprintf_chk (active, activeSize, 2 - 1, __builtin_object_size (active, 2 > 1), "{%.*s%s}", n, script, dots); |
| 641 | } |
| 642 | result = Tcl_EvalEx(interp, script, (int)len, 0); |
| 643 | Export(interp, result, &out); |
| 644 | if (active != NULL((void*)0)) { |
| 645 | assert(max > 0)((void) (0)); |
| 646 | memset(active, ' ', (size_t)max); |
| 647 | } |
| 648 | } else { |
| 649 | Ns_Fatal("nsproxy: invalid length"); |
| 650 | } |
| 651 | if (SendBuf(&proc, NULL((void*)0), &out) == NS_FALSE0) { |
| 652 | break; |
| 653 | } |
| 654 | Tcl_DStringSetLength(&in, 0); |
| 655 | Tcl_DStringSetLength(&out, 0); |
| 656 | } |
| 657 | |
| 658 | if (uarg != NULL((void*)0)) { |
| 659 | ns_free((char *)uarg); |
| 660 | } |
| 661 | Tcl_DStringFree(&in); |
| 662 | Tcl_DStringFree(&out); |
| 663 | |
| 664 | return 0; |
| 665 | } |
| 666 | |
| 667 | |
| 668 | /* |
| 669 | *---------------------------------------------------------------------- |
| 670 | * |
| 671 | * Ns_ProxyCleanup -- |
| 672 | * |
| 673 | * Tcl trace to release any proxy handles |
| 674 | * held in the current interp |
| 675 | * |
| 676 | * Results: |
| 677 | * Standard Tcl result. |
| 678 | * |
| 679 | * Side effects: |
| 680 | * None. |
| 681 | * |
| 682 | *---------------------------------------------------------------------- |
| 683 | */ |
| 684 | |
| 685 | int |
| 686 | Ns_ProxyCleanup(Tcl_Interp *interp, const void *UNUSED(arg)UNUSED_arg __attribute__((__unused__))) |
| 687 | { |
| 688 | InterpData *idataPtr = Tcl_GetAssocData(interp, ASSOC_DATA"nsproxy:data", NULL((void*)0)); |
| 689 | |
| 690 | if (idataPtr != NULL((void*)0)) { |
| 691 | ReleaseHandles(interp, idataPtr); |
| 692 | } |
| 693 | |
| 694 | return TCL_OK0; |
| 695 | } |
| 696 | |
| 697 | |
| 698 | /* |
| 699 | *---------------------------------------------------------------------- |
| 700 | * |
| 701 | * Shutdown -- |
| 702 | * |
| 703 | * Server trace to timely shutdown proxy system |
| 704 | * including stopping the reaper thread. |
| 705 | * |
| 706 | * Results: |
| 707 | * None. |
| 708 | * |
| 709 | * Side effects: |
| 710 | * None. |
| 711 | * |
| 712 | *---------------------------------------------------------------------- |
| 713 | */ |
| 714 | |
| 715 | void |
| 716 | Shutdown(const Ns_Time *timeoutPtr, void *UNUSED(arg)UNUSED_arg __attribute__((__unused__))) |
| 717 | { |
| 718 | Pool *poolPtr; |
| 719 | Proxy *proxyPtr, *tmpPtr; |
| 720 | Tcl_HashSearch search; |
| 721 | int reap; |
| 722 | Ns_ReturnCode status; |
| 723 | |
| 724 | /* |
| 725 | * Cleanup all known pools. This will put all idle |
| 726 | * proxies on the close list. At this point, there |
| 727 | * should be no running nor detached proxies. |
| 728 | * If yes, we will leak memory on exit (proxies and |
| 729 | * the whole pool will be left un-freed). |
| 730 | */ |
| 731 | |
| 732 | if (timeoutPtr == NULL((void*)0)) { |
| 733 | Tcl_HashEntry *hPtr; |
| 734 | |
| 735 | Ns_MutexLock(&plock); |
| 736 | hPtr = Tcl_FirstHashEntry(&pools, &search); |
| 737 | while (hPtr != NULL((void*)0)) { |
| 738 | poolPtr = (Pool *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 739 | Ns_MutexLock(&poolPtr->lock); |
| 740 | poolPtr->maxworker = 0; /* Disable creation of new workers */ |
| 741 | proxyPtr = poolPtr->firstPtr; |
| 742 | while (proxyPtr != NULL((void*)0)) { |
| 743 | if (proxyPtr->workerPtr != NULL((void*)0)) { |
| 744 | CloseWorker(proxyPtr->workerPtr, &proxyPtr->conf.twait); |
| 745 | } |
| 746 | tmpPtr = proxyPtr->nextPtr; |
| 747 | FreeProxy(proxyPtr); |
| 748 | proxyPtr = tmpPtr; |
| 749 | } |
| 750 | Ns_MutexUnlock(&poolPtr->lock); |
| 751 | Tcl_DeleteHashEntry(hPtr); |
| 752 | if (poolPtr->nused == 0) { |
| 753 | FreePool(poolPtr); |
| 754 | } else { |
| 755 | Ns_Log(Warning, "nsproxy: [%s]: has %d used proxies", |
| 756 | poolPtr->name, poolPtr->nused); |
| 757 | } |
| 758 | hPtr = Tcl_NextHashEntry(&search); |
| 759 | } |
| 760 | Tcl_DeleteHashTable(&pools); |
| 761 | Ns_MutexUnlock(&plock); |
| 762 | return; |
| 763 | } |
| 764 | |
| 765 | Ns_MutexLock(&plock); |
| 766 | reap = firstClosePtr != NULL((void*)0) || reaperState != Stopped; |
| 767 | Ns_MutexUnlock(&plock); |
| 768 | |
| 769 | if (reap == 0) { |
| 770 | return; |
| 771 | } |
| 772 | |
| 773 | /* |
| 774 | * There is something on the close list. Start |
| 775 | * the reaper thread if not done already and |
| 776 | * wait for it to gracefully exit. |
| 777 | */ |
| 778 | |
| 779 | Ns_Log(Notice, "nsproxy: shutdown started"); |
| 780 | ReapProxies(); |
| 781 | Ns_MutexLock(&plock); |
| 782 | reaperState = Stopping; |
| 783 | status = NS_OK; |
| 784 | Ns_CondSignal(&pcond); |
| 785 | while (reaperState != Stopped && status == NS_OK) { |
| 786 | status = Ns_CondTimedWait(&pcond, &plock, timeoutPtr); |
| 787 | if (status != NS_OK) { |
| 788 | Ns_Log(Warning, "nsproxy: timeout waiting for reaper exit"); |
| 789 | } |
| 790 | } |
| 791 | Ns_MutexUnlock(&plock); |
| 792 | |
| 793 | Ns_Log(Notice, "nsproxy: shutdown complete"); |
| 794 | } |
| 795 | |
| 796 | |
| 797 | /* |
| 798 | *---------------------------------------------------------------------- |
| 799 | * |
| 800 | * Ns_ProxyGet -- |
| 801 | * |
| 802 | * Get one proxy handle for the given pool. |
| 803 | * |
| 804 | * Results: |
| 805 | * None. |
| 806 | * |
| 807 | * Side effects: |
| 808 | * None. |
| 809 | * |
| 810 | *---------------------------------------------------------------------- |
| 811 | */ |
| 812 | int |
| 813 | Ns_ProxyGet(Tcl_Interp *interp, const char *poolName, PROXY* handlePtr, Ns_Time *timePtr) |
| 814 | { |
| 815 | Pool *poolPtr; |
| 816 | Proxy *proxyPtr; |
| 817 | Err err; |
| 818 | int result; |
| 819 | |
| 820 | /* |
| 821 | * Get just one proxy from the pool |
| 822 | */ |
| 823 | poolPtr = GetPool(poolName, NULL((void*)0)); |
| 824 | |
| 825 | err = PopProxy(poolPtr, &proxyPtr, 1, timePtr); |
| 826 | if (unlikely(err != 0)(__builtin_expect((err != 0), 0))) { |
| 827 | Ns_TclPrintfResult(interp, "could not allocate from pool \"%s\": %s", |
| 828 | poolPtr->name, errMsg[err]); |
| 829 | ProxyError(interp, err); |
| 830 | result = TCL_ERROR1; |
| 831 | |
| 832 | } else if (CheckProxy(interp, proxyPtr) != ENone) { |
| 833 | /* |
| 834 | * No proxy connection. |
| 835 | */ |
| 836 | PushProxy(proxyPtr); |
| 837 | Ns_CondBroadcast(&poolPtr->cond); |
| 838 | result = TCL_ERROR1; |
| 839 | |
| 840 | } else { |
| 841 | /* |
| 842 | * Valid proxy for connection. |
| 843 | */ |
| 844 | *handlePtr = (PROXY *)proxyPtr; |
| 845 | result = TCL_OK0; |
| 846 | |
| 847 | } |
| 848 | |
| 849 | return result; |
| 850 | } |
| 851 | |
| 852 | |
| 853 | /* |
| 854 | *---------------------------------------------------------------------- |
| 855 | * |
| 856 | * Ns_ProxyPut -- |
| 857 | * |
| 858 | * Return the proxy handle back. |
| 859 | * |
| 860 | * Results: |
| 861 | * None. |
| 862 | * |
| 863 | * Side effects: |
| 864 | * None. |
| 865 | * |
| 866 | *---------------------------------------------------------------------- |
| 867 | */ |
| 868 | |
| 869 | void |
| 870 | Ns_ProxyPut(PROXY handle) |
| 871 | { |
| 872 | PushProxy((Proxy *)handle); |
| 873 | } |
| 874 | |
| 875 | |
| 876 | /* |
| 877 | *---------------------------------------------------------------------- |
| 878 | * |
| 879 | * Ns_ProxyEval -- |
| 880 | * |
| 881 | * Evaluates the script in the proxy. |
| 882 | * |
| 883 | * Results: |
| 884 | * Standard Tcl result. |
| 885 | * |
| 886 | * Side effects: |
| 887 | * None. |
| 888 | * |
| 889 | *---------------------------------------------------------------------- |
| 890 | */ |
| 891 | |
| 892 | int Ns_ProxyEval(Tcl_Interp *interp, PROXY handle, const char *script, const Ns_Time *timeoutPtr) |
| 893 | { |
| 894 | return Eval(interp, (Proxy *)handle, script, timeoutPtr); |
| 895 | } |
| 896 | |
| 897 | /* |
| 898 | *---------------------------------------------------------------------- |
| 899 | * |
| 900 | * ExecWorker -- |
| 901 | * |
| 902 | * Create a new proxy worker process. |
| 903 | * |
| 904 | * Results: |
| 905 | * Pointer to new Worker or NULL on error. |
| 906 | * |
| 907 | * Side effects: |
| 908 | * None. |
| 909 | * |
| 910 | *---------------------------------------------------------------------- |
| 911 | */ |
| 912 | |
| 913 | static Worker * |
| 914 | ExecWorker(Tcl_Interp *interp, const Proxy *proxyPtr) |
| 915 | { |
| 916 | Pool *poolPtr; |
| 917 | char *argv[5]; |
| 918 | char active[100]; |
| 919 | Worker *workerPtr; |
| 920 | int rpipe[2], wpipe[2]; |
| 921 | size_t len; |
| 922 | pid_t pid; |
| 923 | |
| 924 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 925 | NS_NONNULL_ASSERT(proxyPtr != NULL)((void) (0)); |
| 926 | |
| 927 | poolPtr = proxyPtr->poolPtr; |
| 928 | len = sizeof(active) - 1; |
| 929 | memset(active, ' ', len); |
| 930 | active[len] = '\0'; |
| 931 | |
| 932 | Ns_MutexLock(&poolPtr->lock); |
| 933 | argv[0] = ns_strdup(poolPtr->exec); |
| 934 | argv[1] = ns_strdup(poolPtr->name); |
| 935 | Ns_MutexUnlock(&poolPtr->lock); |
| 936 | |
| 937 | argv[2] = proxyPtr->id; |
| 938 | argv[3] = active; |
| 939 | argv[4] = NULL((void*)0); |
| 940 | |
| 941 | if (ns_pipe(rpipe) != 0) { |
| 942 | Ns_TclPrintfResult(interp, "pipe failed: %s", Tcl_PosixError(interp)); |
| 943 | return NULL((void*)0); |
| 944 | } |
| 945 | if (ns_pipe(wpipe) != 0) { |
| 946 | Ns_TclPrintfResult(interp, "pipe failed: %s", Tcl_PosixError(interp)); |
| 947 | ns_closeclose(rpipe[0]); |
| 948 | ns_closeclose(rpipe[1]); |
| 949 | return NULL((void*)0); |
| 950 | } |
| 951 | |
| 952 | pid = Ns_ExecArgv(poolPtr->exec, NULL((void*)0), rpipe[0], wpipe[1], argv, poolPtr->env); |
| 953 | |
| 954 | ns_closeclose(rpipe[0]); |
| 955 | ns_closeclose(wpipe[1]); |
| 956 | |
| 957 | ns_free(argv[0]); |
| 958 | ns_free(argv[1]); |
| 959 | |
| 960 | if (pid == NS_INVALID_PID(-1)) { |
| 961 | Ns_TclPrintfResult(interp, "exec failed: %s", Tcl_PosixError(interp)); |
| 962 | ns_closeclose(wpipe[0]); |
| 963 | ns_closeclose(rpipe[1]); |
| 964 | return NULL((void*)0); |
| 965 | } |
| 966 | |
| 967 | workerPtr = ns_calloc(1u, sizeof(Worker)); |
| 968 | workerPtr->poolPtr = proxyPtr->poolPtr; |
| 969 | workerPtr->pid = pid; |
| 970 | workerPtr->rfd = wpipe[0]; |
| 971 | workerPtr->wfd = rpipe[1]; |
| 972 | |
| 973 | SetExpire(workerPtr, &proxyPtr->conf.tidle); |
| 974 | |
| 975 | Ns_Log(Ns_LogNsProxyDebug, "nsproxy: worker process %ld started", (long) workerPtr->pid); |
| 976 | |
| 977 | return workerPtr; |
| 978 | } |
| 979 | |
| 980 | |
| 981 | /* |
| 982 | *---------------------------------------------------------------------- |
| 983 | * |
| 984 | * SetExpire -- |
| 985 | * |
| 986 | * Sets the absolute expire time for the worker process. |
| 987 | * |
| 988 | * Results: |
| 989 | * None. |
| 990 | * |
| 991 | * Side effects: |
| 992 | * None. |
| 993 | * |
| 994 | *---------------------------------------------------------------------- |
| 995 | */ |
| 996 | |
| 997 | static void |
| 998 | SetExpire(Worker *workerPtr, const Ns_Time *timePtr) |
| 999 | { |
| 1000 | NS_NONNULL_ASSERT(workerPtr != NULL)((void) (0)); |
| 1001 | |
| 1002 | Ns_Log(Ns_LogNsProxyDebug, "set expire in %ld ms for pool %s worker %ld", |
| 1003 | timePtr == NULL((void*)0) ? -1 : (long)Ns_TimeToMilliseconds(timePtr), |
| 1004 | workerPtr->poolPtr->name, (long)workerPtr->pid); |
| 1005 | |
| 1006 | if (timePtr != NULL((void*)0)) { |
| 1007 | Ns_GetTime(&workerPtr->expire); |
| 1008 | Ns_IncrTime(&workerPtr->expire, timePtr->sec, timePtr->usec); |
| 1009 | } else { |
| 1010 | workerPtr->expire.sec = TIME_T_MAX9223372036854775807L; |
| 1011 | workerPtr->expire.usec = 0; |
| 1012 | } |
| 1013 | } |
| 1014 | |
| 1015 | |
| 1016 | /* |
| 1017 | *---------------------------------------------------------------------- |
| 1018 | * |
| 1019 | * Eval -- |
| 1020 | * |
| 1021 | * Send a script and wait for and receive a response. |
| 1022 | * |
| 1023 | * Results: |
| 1024 | * Tcl result code from evaluating script, or TCL_ERROR if |
| 1025 | * any communication errors or timeouts. |
| 1026 | * |
| 1027 | * Side effects: |
| 1028 | * Will leave proxy response or error message in interp. |
| 1029 | * |
| 1030 | *---------------------------------------------------------------------- |
| 1031 | */ |
| 1032 | |
| 1033 | static int |
| 1034 | Eval(Tcl_Interp *interp, Proxy *proxyPtr, const char *script, const Ns_Time *timeoutPtr) |
| 1035 | { |
| 1036 | Err err; |
| 1037 | int status = TCL_ERROR1; |
| 1038 | Ns_Time startTime; |
| 1039 | |
| 1040 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 1041 | NS_NONNULL_ASSERT(proxyPtr != NULL)((void) (0)); |
| 1042 | |
| 1043 | Ns_GetTime(&startTime); |
| 1044 | |
| 1045 | err = Send(interp, proxyPtr, script); |
| 1046 | if (err == ENone) { |
| 1047 | err = Wait(interp, proxyPtr, timeoutPtr); |
| 1048 | if (err == ENone) { |
| 1049 | (void) Recv(interp, proxyPtr, &status); |
| 1050 | } |
| 1051 | /* |
| 1052 | * Don't count check-proxy calls (script == NULL) |
| 1053 | */ |
| 1054 | if (script != NULL((void*)0)) { |
| 1055 | Ns_Time endTime, diffTime; |
| 1056 | |
| 1057 | Ns_GetTime(&endTime); |
| 1058 | (void)Ns_DiffTime(&endTime, &startTime, &diffTime); |
| 1059 | if (Ns_DiffTime(&proxyPtr->conf.logminduration, &diffTime, NULL((void*)0)) < 1) { |
| 1060 | Ns_Log(Notice, "nsproxy %s duration " NS_TIME_FMT"%" "l" "d" ".%06ld" " secs: '%s'", |
| 1061 | proxyPtr->poolPtr->name, (int64_t)diffTime.sec, diffTime.usec, script); |
| 1062 | } |
| 1063 | |
| 1064 | Ns_Log(Debug, "Eval calls GetStats <%s>", script); |
| 1065 | GetStats(proxyPtr); |
| 1066 | } |
| 1067 | } |
| 1068 | |
| 1069 | return status; |
| 1070 | } |
| 1071 | |
| 1072 | |
| 1073 | /* |
| 1074 | *---------------------------------------------------------------------- |
| 1075 | * |
| 1076 | * GetStats -- |
| 1077 | * |
| 1078 | * Obtain run time statistics |
| 1079 | * |
| 1080 | * Results: |
| 1081 | * None. |
| 1082 | * |
| 1083 | * Side effects: |
| 1084 | * Update the pool's run time |
| 1085 | * |
| 1086 | *---------------------------------------------------------------------- |
| 1087 | */ |
| 1088 | static void |
| 1089 | GetStats(const Proxy *proxyPtr) |
| 1090 | { |
| 1091 | Ns_Time now, runTimeSpan; |
| 1092 | |
| 1093 | NS_NONNULL_ASSERT(proxyPtr != NULL)((void) (0)); |
| 1094 | |
| 1095 | Ns_GetTime(&now); |
| 1096 | Ns_DiffTime(&now, &proxyPtr->when, &runTimeSpan); |
| 1097 | Ns_IncrTime(&proxyPtr->poolPtr->runTime, runTimeSpan.sec, runTimeSpan.usec); |
| 1098 | proxyPtr->poolPtr->nruns++; |
| 1099 | } |
| 1100 | |
| 1101 | /* |
| 1102 | *---------------------------------------------------------------------- |
| 1103 | * |
| 1104 | * Send -- |
| 1105 | * |
| 1106 | * Send a script to a proxy. |
| 1107 | * |
| 1108 | * Results: |
| 1109 | * Proxy Err code. |
| 1110 | * |
| 1111 | * Side effects: |
| 1112 | * Will format error message in given interp on failure. |
| 1113 | * |
| 1114 | *---------------------------------------------------------------------- |
| 1115 | */ |
| 1116 | |
| 1117 | static Err |
| 1118 | Send(Tcl_Interp *interp, Proxy *proxyPtr, const char *script) |
| 1119 | { |
| 1120 | Err err = ENone; |
| 1121 | Req req; |
| 1122 | |
| 1123 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 1124 | NS_NONNULL_ASSERT(proxyPtr != NULL)((void) (0)); |
| 1125 | |
| 1126 | if (proxyPtr->workerPtr == NULL((void*)0)) { |
| 1127 | err = EDead; |
| 1128 | } else if (proxyPtr->state != Idle) { |
| 1129 | err = EBusy; |
| 1130 | } else { |
| 1131 | proxyPtr->numruns++; |
| 1132 | if (proxyPtr->conf.maxruns > 0 |
| 1133 | && proxyPtr->numruns > proxyPtr->conf.maxruns) { |
| 1134 | Ns_Log(Notice, "proxy maxrun reached pool %s worker %ld", |
| 1135 | proxyPtr->poolPtr->name, (long)proxyPtr->workerPtr->pid); |
| 1136 | CloseProxy(proxyPtr); |
| 1137 | err = CreateWorker(interp, proxyPtr); |
| 1138 | } |
| 1139 | if (err == ENone) { |
| 1140 | size_t len = script == NULL((void*)0) ? 0u : strlen(script); |
| 1141 | |
| 1142 | req.len = htonl((uint32_t)len)__bswap_32 ((uint32_t)len); |
| 1143 | req.major = htons(MAJOR_VERSION)__bswap_16 (1); |
| 1144 | req.minor = htons(MINOR_VERSION)__bswap_16 (1); |
| 1145 | Tcl_DStringSetLength(&proxyPtr->in, 0); |
| 1146 | Tcl_DStringAppend(&proxyPtr->in, (char *) &req, sizeof(req)); |
| 1147 | if (len > 0u) { |
| 1148 | Tcl_DStringAppend(&proxyPtr->in, script, (int)len); |
| 1149 | } |
| 1150 | proxyPtr->state = Busy; |
| 1151 | |
| 1152 | /* |
| 1153 | * Proxy is active, put it on the |
| 1154 | * head of the run queue, |
| 1155 | */ |
| 1156 | |
| 1157 | Ns_GetTime(&proxyPtr->when); |
| 1158 | |
| 1159 | Ns_MutexLock(&proxyPtr->poolPtr->lock); |
| 1160 | proxyPtr->runPtr = proxyPtr->poolPtr->runPtr; |
| 1161 | proxyPtr->poolPtr->runPtr = proxyPtr; |
| 1162 | Ns_MutexUnlock(&proxyPtr->poolPtr->lock); |
| 1163 | |
| 1164 | if (script != NULL((void*)0)) { |
| 1165 | Ns_Log(Ns_LogNsProxyDebug, "proxy send pool %s worker %ld: %s", |
| 1166 | proxyPtr->poolPtr->name, (long)proxyPtr->workerPtr->pid, script); |
| 1167 | } |
| 1168 | |
| 1169 | if (SendBuf(proxyPtr->workerPtr, &proxyPtr->conf.tsend, |
| 1170 | &proxyPtr->in) == NS_FALSE0) { |
| 1171 | err = ESend; |
| 1172 | } |
| 1173 | } |
| 1174 | } |
| 1175 | |
| 1176 | if (err != ENone) { |
| 1177 | Ns_TclPrintfResult(interp, "could not send script \"%s\" to proxy \"%s\": %s", |
| 1178 | script == NULL((void*)0) ? NS_EMPTY_STRING : script, |
| 1179 | proxyPtr->id, errMsg[err]); |
| 1180 | ProxyError(interp, err); |
| 1181 | } |
| 1182 | |
| 1183 | return err; |
| 1184 | } |
| 1185 | |
| 1186 | |
| 1187 | /* |
| 1188 | *---------------------------------------------------------------------- |
| 1189 | * |
| 1190 | * Wait -- |
| 1191 | * |
| 1192 | * Wait for response from proxy process. |
| 1193 | * |
| 1194 | * Results: |
| 1195 | * Proxy Err code. |
| 1196 | * |
| 1197 | * Side effects: |
| 1198 | * Will format error message in given interp on failure. |
| 1199 | * |
| 1200 | *---------------------------------------------------------------------- |
| 1201 | */ |
| 1202 | |
| 1203 | static Err |
| 1204 | Wait(Tcl_Interp *interp, Proxy *proxyPtr, const Ns_Time *timeoutPtr) |
| 1205 | { |
| 1206 | Err err = ENone; |
| 1207 | |
| 1208 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 1209 | NS_NONNULL_ASSERT(proxyPtr != NULL)((void) (0)); |
| 1210 | |
| 1211 | if (proxyPtr->state == Idle) { |
| 1212 | err = EIdle; |
| 1213 | } else if (proxyPtr->workerPtr == NULL((void*)0)) { |
| 1214 | err = EDead; |
| 1215 | } else if (proxyPtr->state != Done) { |
| 1216 | time_t ms; |
| 1217 | |
| 1218 | if (timeoutPtr != NULL((void*)0)) { |
| 1219 | ms = Ns_TimeToMilliseconds(timeoutPtr); |
| 1220 | } else { |
| 1221 | ms = -1; |
| 1222 | } |
| 1223 | if (ms <= 0) { |
| 1224 | ms = Ns_TimeToMilliseconds(&proxyPtr->conf.teval); |
| 1225 | } |
| 1226 | if (ms <= 0) { |
| 1227 | ms = -1; |
| 1228 | } |
| 1229 | if (!WaitFd(proxyPtr->workerPtr->rfd, POLLIN0x001, (long)ms)) { |
| 1230 | err = EEvalTimeout; |
| 1231 | } else { |
| 1232 | proxyPtr->state = Done; |
| 1233 | } |
| 1234 | } |
| 1235 | |
| 1236 | if (err != ENone) { |
| 1237 | Ns_TclPrintfResult(interp, "could not wait for proxy \"%s\": %s", |
| 1238 | proxyPtr->id, errMsg[err]); |
| 1239 | ProxyError(interp, err); |
| 1240 | } |
| 1241 | |
| 1242 | return err; |
| 1243 | } |
| 1244 | |
| 1245 | |
| 1246 | /* |
| 1247 | *---------------------------------------------------------------------- |
| 1248 | * |
| 1249 | * Recv -- |
| 1250 | * |
| 1251 | * Receive proxy results. |
| 1252 | * |
| 1253 | * Results: |
| 1254 | * Proxy Err code. |
| 1255 | * |
| 1256 | * Side effects: |
| 1257 | * Will append proxy results or error message to given interp. |
| 1258 | * |
| 1259 | *---------------------------------------------------------------------- |
| 1260 | */ |
| 1261 | |
| 1262 | static Err |
| 1263 | Recv(Tcl_Interp *interp, Proxy *proxyPtr, int *resultPtr) |
| 1264 | { |
| 1265 | Err err = ENone; |
| 1266 | |
| 1267 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 1268 | NS_NONNULL_ASSERT(proxyPtr != NULL)((void) (0)); |
| 1269 | NS_NONNULL_ASSERT(resultPtr != NULL)((void) (0)); |
| 1270 | |
| 1271 | if (proxyPtr->state == Idle) { |
| 1272 | err = EIdle; |
| 1273 | } else if (proxyPtr->state == Busy) { |
| 1274 | err = ENoWait; |
| 1275 | } else { |
| 1276 | Tcl_DStringSetLength(&proxyPtr->out, 0); |
| 1277 | if (RecvBuf(proxyPtr->workerPtr, &proxyPtr->conf.trecv, |
| 1278 | &proxyPtr->out) == NS_FALSE0) { |
| 1279 | err = ERecv; |
| 1280 | } else if (Import(interp, &proxyPtr->out, resultPtr) != TCL_OK0) { |
| 1281 | err = EImport; |
| 1282 | } else { |
| 1283 | proxyPtr->state = Idle; |
| 1284 | } |
| 1285 | ResetProxy(proxyPtr); |
| 1286 | } |
| 1287 | |
| 1288 | if (err != ENone) { |
| 1289 | Ns_TclPrintfResult(interp, "could not receive from proxy \"%s\": %s", |
| 1290 | proxyPtr->id, errMsg[err]); |
| 1291 | ProxyError(interp, err); |
| 1292 | } |
| 1293 | |
| 1294 | return err; |
| 1295 | } |
| 1296 | |
| 1297 | /* |
| 1298 | *---------------------------------------------------------------------- |
| 1299 | * |
| 1300 | * SendBuf -- |
| 1301 | * |
| 1302 | * Send a dstring buffer to the specified worker process. |
| 1303 | * |
| 1304 | * Results: |
| 1305 | * NS_TRUE if sent, NS_FALSE on error. |
| 1306 | * |
| 1307 | * Side effects: |
| 1308 | * None. |
| 1309 | * |
| 1310 | *---------------------------------------------------------------------- |
| 1311 | */ |
| 1312 | |
| 1313 | static bool_Bool |
| 1314 | SendBuf(const Worker *workerPtr, const Ns_Time *timePtr, const Tcl_DString *dsPtr) |
| 1315 | { |
| 1316 | ssize_t n; |
| 1317 | uint32 ulen; |
| 1318 | struct iovec iov[2]; |
| 1319 | Ns_Time end; |
| 1320 | bool_Bool success = NS_TRUE1; |
| 1321 | |
| 1322 | NS_NONNULL_ASSERT(workerPtr != NULL)((void) (0)); |
| 1323 | NS_NONNULL_ASSERT(dsPtr != NULL)((void) (0)); |
| 1324 | |
| 1325 | if (timePtr != NULL((void*)0)) { |
| 1326 | Ns_GetTime(&end); |
| 1327 | Ns_IncrTime(&end, timePtr->sec, timePtr->usec); |
| 1328 | } |
| 1329 | |
| 1330 | ulen = htonl((unsigned int)dsPtr->length)__bswap_32 ((unsigned int)dsPtr->length); |
| 1331 | iov[0].iov_base = (void *)&ulen; |
| 1332 | iov[0].iov_len = sizeof(ulen); |
| 1333 | iov[1].iov_base = dsPtr->string; |
| 1334 | iov[1].iov_len = (size_t)dsPtr->length; |
| 1335 | |
| 1336 | while ((iov[0].iov_len + iov[1].iov_len) > 0u) { |
| 1337 | do { |
| 1338 | n = writev(workerPtr->wfd, iov, 2); |
| 1339 | } while (n == -1 && errno(*__errno_location ()) == NS_EINTR4); |
| 1340 | |
| 1341 | if (n == -1) { |
| 1342 | long waitMs; |
| 1343 | |
| 1344 | if ((errno(*__errno_location ()) != NS_EAGAIN11) && (errno(*__errno_location ()) != NS_EWOULDBLOCK11)) { |
| 1345 | success = NS_FALSE0; |
| 1346 | break; |
| 1347 | |
| 1348 | } else if (timePtr != NULL((void*)0)) { |
| 1349 | waitMs = GetTimeDiff(&end); |
| 1350 | if (waitMs < 0) { |
| 1351 | success = NS_FALSE0; |
| 1352 | break; |
| 1353 | } |
| 1354 | } else { |
| 1355 | waitMs = -1; |
| 1356 | } |
| 1357 | if (!WaitFd(workerPtr->wfd, POLLOUT0x004, waitMs)) { |
| 1358 | success = NS_FALSE0; |
| 1359 | break; |
| 1360 | } |
| 1361 | } else if (n > 0) { |
| 1362 | UpdateIov(iov, (size_t)n); |
| 1363 | } |
| 1364 | } |
| 1365 | |
| 1366 | return success; |
| 1367 | } |
| 1368 | |
| 1369 | |
| 1370 | /* |
| 1371 | *---------------------------------------------------------------------- |
| 1372 | * |
| 1373 | * RecvBuf -- |
| 1374 | * |
| 1375 | * Receive a dstring buffer. |
| 1376 | * |
| 1377 | * Results: |
| 1378 | * NS_TRUE if sent, NS_FALSE on error. |
| 1379 | * |
| 1380 | * Side effects: |
| 1381 | * Will resize output dstring as needed. |
| 1382 | * |
| 1383 | *---------------------------------------------------------------------- |
| 1384 | */ |
| 1385 | |
| 1386 | static bool_Bool |
| 1387 | RecvBuf(const Worker *workerPtr, const Ns_Time *timePtr, Tcl_DString *dsPtr) |
| 1388 | { |
| 1389 | uint32 ulen = 0u; |
| 1390 | ssize_t n; |
| 1391 | size_t avail; |
| 1392 | struct iovec iov[2]; |
| 1393 | Ns_Time end; |
| 1394 | bool_Bool success = NS_TRUE1; |
| 1395 | |
| 1396 | NS_NONNULL_ASSERT(workerPtr != NULL)((void) (0)); |
| 1397 | NS_NONNULL_ASSERT(dsPtr != NULL)((void) (0)); |
| 1398 | |
| 1399 | if (timePtr != NULL((void*)0)) { |
| 1400 | Ns_GetTime(&end); |
| 1401 | Ns_IncrTime(&end, timePtr->sec, timePtr->usec); |
| 1402 | } |
| 1403 | |
| 1404 | avail = (size_t)dsPtr->spaceAvl - 1u; |
| 1405 | iov[0].iov_base = (void *)&ulen; |
| 1406 | iov[0].iov_len = sizeof(ulen); |
| 1407 | iov[1].iov_base = dsPtr->string; |
| 1408 | iov[1].iov_len = avail; |
| 1409 | |
| 1410 | while (iov[0].iov_len > 0) { |
| 1411 | do { |
| 1412 | n = readv(workerPtr->rfd, iov, 2); |
| 1413 | } while ((n == -1) && (errno(*__errno_location ()) == NS_EINTR4)); |
| 1414 | |
| 1415 | if (n == 0) { |
| 1416 | success = NS_FALSE0; /* EOF */ |
| 1417 | break; |
| 1418 | |
| 1419 | } else if (n < 0) { |
| 1420 | long waitMs; |
| 1421 | |
| 1422 | if (errno(*__errno_location ()) != NS_EAGAIN11 && errno(*__errno_location ()) != NS_EWOULDBLOCK11) { |
| 1423 | success = NS_FALSE0; |
| 1424 | break; |
| 1425 | |
| 1426 | } else if (timePtr != NULL((void*)0)) { |
| 1427 | waitMs = GetTimeDiff(&end); |
| 1428 | if (waitMs < 0) { |
| 1429 | success = NS_FALSE0; |
| 1430 | break; |
| 1431 | } |
| 1432 | } else { |
| 1433 | waitMs = -1; |
| 1434 | } |
| 1435 | if (!WaitFd(workerPtr->rfd, POLLIN0x001, waitMs)) { |
| 1436 | success = NS_FALSE0; |
| 1437 | break; |
| 1438 | } |
| 1439 | } else if (n > 0) { |
| 1440 | UpdateIov(iov, (size_t)n); |
| 1441 | } |
| 1442 | } |
| 1443 | if (success) { |
| 1444 | char *ptr; |
| 1445 | ssize_t len; |
| 1446 | |
| 1447 | n = (ssize_t)(avail - iov[1].iov_len); |
| 1448 | Tcl_DStringSetLength(dsPtr, (int)n); |
| 1449 | len = (ssize_t)ntohl(ulen)__bswap_32 (ulen); |
| 1450 | Tcl_DStringSetLength(dsPtr, (int)len); |
| 1451 | len -= n; |
| 1452 | ptr = dsPtr->string + n; |
| 1453 | |
| 1454 | while (len > 0) { |
| 1455 | do { |
| 1456 | n = ns_readread(workerPtr->rfd, ptr, (size_t)len); |
| 1457 | } while ((n == -1) && (errno(*__errno_location ()) == NS_EINTR4)); |
| 1458 | |
| 1459 | if (n == 0) { |
| 1460 | success = NS_FALSE0; /* EOF */ |
| 1461 | break; |
| 1462 | |
| 1463 | } else if (n < 0) { |
| 1464 | long waitMs; |
| 1465 | |
| 1466 | if (errno(*__errno_location ()) != NS_EAGAIN11 && errno(*__errno_location ()) != NS_EWOULDBLOCK11) { |
| 1467 | success = NS_FALSE0; |
| 1468 | break; |
| 1469 | |
| 1470 | } else if (timePtr != NULL((void*)0)) { |
| 1471 | waitMs = GetTimeDiff(&end); |
| 1472 | if (waitMs < 0) { |
| 1473 | success = NS_FALSE0; |
| 1474 | break; |
| 1475 | } |
| 1476 | } else { |
| 1477 | waitMs = -1; |
| 1478 | } |
| 1479 | if (!WaitFd(workerPtr->rfd, POLLIN0x001, waitMs)) { |
| 1480 | success = NS_FALSE0; |
| 1481 | break; |
| 1482 | } |
| 1483 | } else if (n > 0) { |
| 1484 | len -= n; |
| 1485 | ptr += n; |
| 1486 | } |
| 1487 | } |
| 1488 | } |
| 1489 | |
| 1490 | return success; |
| 1491 | } |
| 1492 | |
| 1493 | |
| 1494 | /* |
| 1495 | *---------------------------------------------------------------------- |
| 1496 | * |
| 1497 | * WaitFd -- |
| 1498 | * |
| 1499 | * Waits for the given event on the worker pipe. |
| 1500 | * |
| 1501 | * Results: |
| 1502 | * NS_TRUE if event received, NS_FALSE on error. |
| 1503 | * |
| 1504 | * Side effects: |
| 1505 | * None. |
| 1506 | * |
| 1507 | *---------------------------------------------------------------------- |
| 1508 | */ |
| 1509 | |
| 1510 | static bool_Bool |
| 1511 | WaitFd(int fd, short events, long ms) |
| 1512 | { |
| 1513 | struct pollfd pfd; |
| 1514 | int n; |
| 1515 | |
| 1516 | pfd.fd = fd; |
| 1517 | pfd.events = events | POLLPRI0x002 | POLLERR0x008; |
| 1518 | pfd.revents = pfd.events; |
| 1519 | do { |
| 1520 | n = ns_poll(&pfd, 1, ms); |
| 1521 | } while (n == -1 && errno(*__errno_location ()) == NS_EINTR4); |
| 1522 | if (n == -1) { |
| 1523 | n = 0; |
| 1524 | Ns_Log(Error, "nsproxy: poll failed: %s", strerror(errno(*__errno_location ()))); |
| 1525 | } |
| 1526 | |
| 1527 | return n; |
| 1528 | } |
| 1529 | |
| 1530 | |
| 1531 | /* |
| 1532 | *---------------------------------------------------------------------- |
| 1533 | * |
| 1534 | * UpdateIov -- |
| 1535 | * |
| 1536 | * Update the base and len in given iovec based on bytes |
| 1537 | * already processed. |
| 1538 | * |
| 1539 | * Results: |
| 1540 | * None. |
| 1541 | * |
| 1542 | * Side effects: |
| 1543 | * None. |
| 1544 | * |
| 1545 | *---------------------------------------------------------------------- |
| 1546 | */ |
| 1547 | |
| 1548 | static void |
| 1549 | UpdateIov(struct iovec *iov, size_t n) |
| 1550 | { |
| 1551 | NS_NONNULL_ASSERT(iov != NULL)((void) (0)); |
| 1552 | |
| 1553 | if (n >= iov[0].iov_len) { |
| 1554 | n -= iov[0].iov_len; |
| 1555 | iov[0].iov_base = NULL((void*)0); |
| 1556 | iov[0].iov_len = 0; |
| 1557 | } else { |
| 1558 | iov[0].iov_len -= n; |
| 1559 | iov[0].iov_base = (char *)(iov[0].iov_base) + n; |
| 1560 | n = 0; |
| 1561 | } |
| 1562 | iov[1].iov_len -= n; |
| 1563 | iov[1].iov_base = (char *)(iov[1].iov_base) + n; |
| 1564 | } |
| 1565 | |
| 1566 | |
| 1567 | /* |
| 1568 | *---------------------------------------------------------------------- |
| 1569 | * |
| 1570 | * Export -- |
| 1571 | * |
| 1572 | * Export result of Tcl, include error, to given dstring. |
| 1573 | * |
| 1574 | * Results: |
| 1575 | * None. |
| 1576 | * |
| 1577 | * Side effects: |
| 1578 | * Given dstring will contain response header and data. |
| 1579 | * |
| 1580 | *---------------------------------------------------------------------- |
| 1581 | */ |
| 1582 | |
| 1583 | static void |
| 1584 | Export(Tcl_Interp *interp, int code, Tcl_DString *dsPtr) |
| 1585 | { |
| 1586 | Res hdr; |
| 1587 | const char *einfo = NULL((void*)0), *ecode = NULL((void*)0), *result = NULL((void*)0); |
| 1588 | unsigned int clen = 0u, ilen = 0u, rlen = 0u; |
| 1589 | |
| 1590 | NS_NONNULL_ASSERT(dsPtr != NULL)((void) (0)); |
| 1591 | |
| 1592 | if (interp != NULL((void*)0)) { |
| 1593 | if (code == TCL_OK0) { |
| 1594 | einfo = NULL((void*)0); |
| 1595 | ecode = NULL((void*)0); |
| 1596 | } else { |
| 1597 | ecode = Tcl_GetVar(interp, "errorCode", TCL_GLOBAL_ONLY)Tcl_GetVar2(interp, "errorCode", ((void*)0), 1); |
| 1598 | einfo = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY)Tcl_GetVar2(interp, "errorInfo", ((void*)0), 1); |
| 1599 | } |
| 1600 | clen = (ecode != NULL((void*)0)) ? ((unsigned int)strlen(ecode) + 1) : 0u; |
| 1601 | ilen = (einfo != NULL((void*)0)) ? ((unsigned int)strlen(einfo) + 1) : 0u; |
| 1602 | result = Tcl_GetStringResult(interp); |
| 1603 | rlen = (unsigned int)strlen(result); |
| 1604 | } |
| 1605 | hdr.code = htonl((unsigned int)code)__bswap_32 ((unsigned int)code); |
| 1606 | hdr.clen = htonl(clen)__bswap_32 (clen); |
| 1607 | hdr.ilen = htonl(ilen)__bswap_32 (ilen); |
| 1608 | hdr.rlen = htonl(rlen)__bswap_32 (rlen); |
| 1609 | Tcl_DStringAppend(dsPtr, (char *) &hdr, sizeof(hdr)); |
| 1610 | if (clen > 0) { |
| 1611 | Tcl_DStringAppend(dsPtr, ecode, (int)clen); |
| 1612 | } |
| 1613 | if (ilen > 0) { |
| 1614 | Tcl_DStringAppend(dsPtr, einfo, (int)ilen); |
| 1615 | } |
| 1616 | if (rlen > 0) { |
| 1617 | Tcl_DStringAppend(dsPtr, result, (int)rlen); |
| 1618 | } |
| 1619 | } |
| 1620 | |
| 1621 | |
| 1622 | /* |
| 1623 | *---------------------------------------------------------------------- |
| 1624 | * |
| 1625 | * Import -- |
| 1626 | * |
| 1627 | * Import result of Tcl to given interp. |
| 1628 | * |
| 1629 | * Results: |
| 1630 | * Tcl result code from remote worker process. |
| 1631 | * |
| 1632 | * Side effects: |
| 1633 | * Will set interp result and error data as needed. |
| 1634 | * |
| 1635 | *---------------------------------------------------------------------- |
| 1636 | */ |
| 1637 | |
| 1638 | static int |
| 1639 | Import(Tcl_Interp *interp, const Tcl_DString *dsPtr, int *resultPtr) |
| 1640 | { |
| 1641 | int result = TCL_OK0; |
| 1642 | |
| 1643 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 1644 | NS_NONNULL_ASSERT(dsPtr != NULL)((void) (0)); |
| 1645 | NS_NONNULL_ASSERT(resultPtr != NULL)((void) (0)); |
| 1646 | |
| 1647 | if (dsPtr->length < (int)sizeof(Res)) { |
| 1648 | result = TCL_ERROR1; |
| 1649 | |
| 1650 | } else { |
| 1651 | Res res, *resPtr = &res; |
| 1652 | const char *str = dsPtr->string + sizeof(Res); |
| 1653 | size_t rlen, clen, ilen; |
| 1654 | |
| 1655 | memcpy(&res, dsPtr->string, sizeof(Res)); |
| 1656 | |
| 1657 | clen = ntohl(resPtr->clen)__bswap_32 (resPtr->clen); |
| 1658 | ilen = ntohl(resPtr->ilen)__bswap_32 (resPtr->ilen); |
| 1659 | rlen = ntohl(resPtr->rlen)__bswap_32 (resPtr->rlen); |
| 1660 | if (clen > 0) { |
| 1661 | Tcl_Obj *err = Tcl_NewStringObj(str, -1); |
| 1662 | |
| 1663 | Tcl_SetObjErrorCode(interp, err); |
| 1664 | str += clen; |
| 1665 | } |
| 1666 | if (ilen > 0) { |
| 1667 | Tcl_AddErrorInfo(interp, str); |
| 1668 | str += ilen; |
| 1669 | } |
| 1670 | if (rlen > 0) { |
| 1671 | Tcl_SetObjResult(interp, Tcl_NewStringObj(str, -1)); |
| 1672 | } |
| 1673 | *resultPtr = (int)ntohl(resPtr->code)__bswap_32 (resPtr->code); |
| 1674 | } |
| 1675 | return result; |
| 1676 | } |
| 1677 | |
| 1678 | |
| 1679 | |
| 1680 | /* |
| 1681 | *---------------------------------------------------------------------- |
| 1682 | * |
| 1683 | * StatsObjCmd -- |
| 1684 | * |
| 1685 | * Implements "ns_proxy stats". |
| 1686 | * |
| 1687 | * Results: |
| 1688 | * Tcl result. |
| 1689 | * |
| 1690 | * Side effects: |
| 1691 | * None. |
| 1692 | * |
| 1693 | *---------------------------------------------------------------------- |
| 1694 | */ |
| 1695 | static int |
| 1696 | StatsObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1697 | { |
| 1698 | int result = TCL_OK0; |
| 1699 | char *pool; |
| 1700 | Ns_ObjvSpec args[] = { |
| 1701 | {"pool", Ns_ObjvString, &pool, NULL((void*)0)}, |
| 1702 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1703 | }; |
| 1704 | |
| 1705 | if (Ns_ParseObjv(NULL((void*)0), args, interp, 2, objc, objv) != NS_OK) { |
| 1706 | result = TCL_ERROR1; |
| 1707 | |
| 1708 | } else { |
| 1709 | Tcl_DString ds, *dsPtr = &ds; |
| 1710 | Pool *poolPtr = GetPool(pool, clientData); |
| 1711 | int processes = 0; |
| 1712 | Proxy *proxyPtr; |
| 1713 | |
| 1714 | Tcl_DStringInit(dsPtr); |
| 1715 | Ns_MutexLock(&plock); |
| 1716 | Ns_MutexLock(&poolPtr->lock); |
| 1717 | |
| 1718 | for (proxyPtr = poolPtr->firstPtr; proxyPtr != NULL((void*)0); proxyPtr = proxyPtr->nextPtr) { |
| 1719 | if (proxyPtr->workerPtr != NULL((void*)0)) { |
| 1720 | processes ++; |
| 1721 | } |
| 1722 | } |
| 1723 | Ns_DStringPrintf(dsPtr, "proxies %" PRIuPTR"l" "u", poolPtr->nextid); |
| 1724 | Ns_DStringPrintf(dsPtr, " waiting %d", poolPtr->waiting); |
| 1725 | Ns_DStringPrintf(dsPtr, " maxworkers %d", poolPtr->maxworker); |
| 1726 | Ns_DStringPrintf(dsPtr, " free %d", poolPtr->nfree); |
| 1727 | Ns_DStringPrintf(dsPtr, " used %d", poolPtr->nused); |
| 1728 | Ns_DStringPrintf(dsPtr, " requests %" PRIuPTR"l" "u", poolPtr->nruns); |
| 1729 | Ns_DStringPrintf(dsPtr, " processes %d", processes); |
| 1730 | Tcl_DStringAppend(dsPtr, " runtime ", 9); |
| 1731 | Ns_DStringAppendTime(dsPtr, &poolPtr->runTime); |
| 1732 | |
| 1733 | Ns_MutexUnlock(&poolPtr->lock); |
| 1734 | Ns_MutexUnlock(&plock); |
| 1735 | |
| 1736 | Tcl_DStringResult(interp, dsPtr); |
| 1737 | } |
| 1738 | |
| 1739 | return result; |
| 1740 | } |
| 1741 | |
| 1742 | |
| 1743 | /* |
| 1744 | *---------------------------------------------------------------------- |
| 1745 | * |
| 1746 | * StopObjCmd -- |
| 1747 | * |
| 1748 | * Implements "ns_proxy stop". |
| 1749 | * |
| 1750 | * Results: |
| 1751 | * Tcl result. |
| 1752 | * |
| 1753 | * Side effects: |
| 1754 | * None. |
| 1755 | * |
| 1756 | *---------------------------------------------------------------------- |
| 1757 | */ |
| 1758 | static int |
| 1759 | StopObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1760 | { |
| 1761 | int result = TCL_OK0; |
| 1762 | char *pool, *handle = NULL((void*)0); |
| 1763 | Ns_ObjvSpec args[] = { |
| 1764 | {"pool", Ns_ObjvString, &pool, NULL((void*)0)}, |
| 1765 | {"?handle", Ns_ObjvString, &handle, NULL((void*)0)}, |
| 1766 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1767 | }; |
| 1768 | |
| 1769 | if (Ns_ParseObjv(NULL((void*)0), args, interp, 2, objc, objv) != NS_OK) { |
| 1770 | result = TCL_ERROR1; |
| 1771 | |
| 1772 | } else { |
| 1773 | Tcl_HashEntry *hPtr; |
| 1774 | Tcl_HashSearch search; |
| 1775 | Pool *thePoolPtr = GetPool(pool, clientData); |
| 1776 | int reap = 0; |
| 1777 | |
| 1778 | Ns_MutexLock(&plock); |
| 1779 | for (hPtr = Tcl_FirstHashEntry(&pools, &search); hPtr != NULL((void*)0); hPtr = Tcl_NextHashEntry(&search)) { |
| 1780 | Pool *poolPtr = (Pool *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 1781 | |
| 1782 | if (thePoolPtr == poolPtr) { |
| 1783 | Proxy *proxyPtr; |
| 1784 | |
| 1785 | Ns_MutexLock(&poolPtr->lock); |
| 1786 | for (proxyPtr = poolPtr->runPtr; proxyPtr != NULL((void*)0); proxyPtr = proxyPtr->runPtr) { |
| 1787 | reap += CloseWorkerOfProxy(proxyPtr, handle, &proxyPtr->conf.twait); |
| 1788 | } |
| 1789 | Ns_MutexUnlock(&poolPtr->lock); |
| 1790 | break; |
| 1791 | } |
| 1792 | } |
| 1793 | Ns_MutexUnlock(&plock); |
| 1794 | if (reap != 0) { |
| 1795 | ReapProxies(); |
| 1796 | } |
| 1797 | } |
| 1798 | return result; |
| 1799 | } |
| 1800 | |
| 1801 | /* |
| 1802 | *---------------------------------------------------------------------- |
| 1803 | * |
| 1804 | * StopObjCmd -- |
| 1805 | * |
| 1806 | * Implements "ns_proxy clear". |
| 1807 | * |
| 1808 | * Results: |
| 1809 | * Tcl result. |
| 1810 | * |
| 1811 | * Side effects: |
| 1812 | * None. |
| 1813 | * |
| 1814 | *---------------------------------------------------------------------- |
| 1815 | */ |
| 1816 | |
| 1817 | static int |
| 1818 | ClearObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1819 | { |
| 1820 | int result = TCL_OK0; |
| 1821 | char *pool, *handle = NULL((void*)0); |
| 1822 | Ns_ObjvSpec args[] = { |
| 1823 | {"pool", Ns_ObjvString, &pool, NULL((void*)0)}, |
| 1824 | {"?handle", Ns_ObjvString, &handle, NULL((void*)0)}, |
| 1825 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1826 | }; |
| 1827 | |
| 1828 | if (Ns_ParseObjv(NULL((void*)0), args, interp, 2, objc, objv) != NS_OK) { |
| 1829 | result = TCL_ERROR1; |
| 1830 | |
| 1831 | } else { |
| 1832 | Tcl_HashEntry *hPtr; |
| 1833 | Tcl_HashSearch search; |
| 1834 | Pool *thePoolPtr = GetPool(pool, clientData); |
| 1835 | int reap = 0; |
| 1836 | |
| 1837 | Ns_MutexLock(&plock); |
| 1838 | for (hPtr = Tcl_FirstHashEntry(&pools, &search); hPtr != NULL((void*)0); hPtr = Tcl_NextHashEntry(&search)) { |
| 1839 | Pool *poolPtr = (Pool *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 1840 | |
| 1841 | if (thePoolPtr == poolPtr) { |
| 1842 | Proxy *proxyPtr; |
| 1843 | |
| 1844 | Ns_MutexLock(&poolPtr->lock); |
| 1845 | for (proxyPtr = poolPtr->firstPtr; proxyPtr != NULL((void*)0); proxyPtr = proxyPtr->nextPtr) { |
| 1846 | reap += CloseWorkerOfProxy(proxyPtr, handle, &proxyPtr->conf.twait); |
| 1847 | } |
| 1848 | Ns_MutexUnlock(&poolPtr->lock); |
| 1849 | break; |
| 1850 | } |
| 1851 | } |
| 1852 | Ns_MutexUnlock(&plock); |
| 1853 | if (reap != 0) { |
| 1854 | ReapProxies(); |
| 1855 | } |
| 1856 | } |
| 1857 | return result; |
| 1858 | } |
| 1859 | |
| 1860 | |
| 1861 | |
| 1862 | /* |
| 1863 | *---------------------------------------------------------------------- |
| 1864 | * |
| 1865 | * ProxyObjCmd -- |
| 1866 | * |
| 1867 | * Implements "ns_proxy" wrapper. |
| 1868 | * |
| 1869 | * Results: |
| 1870 | * Standard Tcl result. |
| 1871 | * |
| 1872 | * Side effects: |
| 1873 | * None. |
| 1874 | * |
| 1875 | *---------------------------------------------------------------------- |
| 1876 | */ |
| 1877 | |
| 1878 | static int |
| 1879 | ProxyObjCmd(ClientData data, Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1880 | { |
| 1881 | InterpData *idataPtr = data; |
| 1882 | Pool *poolPtr; |
| 1883 | Proxy *proxyPtr; |
| 1884 | Err err; |
| 1885 | int opt, result = TCL_OK0; |
| 1886 | const char *proxyId; |
| 1887 | Tcl_HashEntry *hPtr; |
| 1888 | Tcl_HashSearch search; |
| 1889 | Tcl_Obj *listObj; |
| 1890 | |
| 1891 | static const char *opts[] = { |
| 1892 | "active", "cleanup", "clear", "configure", "eval", |
| 1893 | "free", "get", "handles", "ping", "pools", "put", |
| 1894 | "recv", "release", "send", "stats", "stop", "wait", |
| 1895 | NULL((void*)0) |
| 1896 | }; |
| 1897 | enum { |
| 1898 | PActiveIdx, PCleanupIdx, PClearIdx, PConfigureIdx, PEvalIdx, |
| 1899 | PFreeIdx, PGetIdx, PHandlesIdx, PPingIdx, PPoolsIdx, PPutIdx, |
| 1900 | PRecvIdx, PReleaseIdx, PSendIdx, PStatsIdx, PStopIdx, PWaitIdx |
| 1901 | }; |
| 1902 | |
| 1903 | if (objc < 2) { |
| 1904 | Tcl_WrongNumArgs(interp, 1, objv, "option ?args?"); |
| 1905 | return TCL_ERROR1; |
| 1906 | } |
| 1907 | if (Tcl_GetIndexFromObj(interp, objv[1], opts, "option", 0,Tcl_GetIndexFromObjStruct(interp, objv[1], opts, sizeof(char * ), "option", 0, &opt) |
| 1908 | &opt)Tcl_GetIndexFromObjStruct(interp, objv[1], opts, sizeof(char * ), "option", 0, &opt) != TCL_OK0) { |
| 1909 | return TCL_ERROR1; |
| 1910 | } |
| 1911 | |
| 1912 | switch (opt) { |
| 1913 | case PReleaseIdx: NS_FALL_THROUGH((void)0); /* fall through */ |
| 1914 | case PPutIdx: NS_FALL_THROUGH((void)0); /* fall through */ |
| 1915 | case PPingIdx: |
| 1916 | if (objc != 3) { |
| 1917 | Tcl_WrongNumArgs(interp, 2, objv, "handle"); |
| 1918 | result = TCL_ERROR1; |
| 1919 | } else { |
| 1920 | proxyId = Tcl_GetString(objv[2]); |
| 1921 | proxyPtr = GetProxy(proxyId, idataPtr); |
| 1922 | if (proxyPtr == NULL((void*)0)) { |
| 1923 | Ns_TclPrintfResult(interp, "no such handle: %s", proxyId); |
| 1924 | result = TCL_ERROR1; |
| 1925 | } else if (opt == PPutIdx || opt == PReleaseIdx) { |
| 1926 | result = ReleaseProxy(interp, proxyPtr); |
| 1927 | } else /* opt == PPingIdx */ { |
| 1928 | result = Eval(interp, proxyPtr, NULL((void*)0), NULL((void*)0)); |
| 1929 | } |
| 1930 | } |
| 1931 | break; |
| 1932 | |
| 1933 | case PConfigureIdx: |
| 1934 | result = ConfigureObjCmd(data, interp, objc, objv); |
| 1935 | break; |
| 1936 | |
| 1937 | case PCleanupIdx: |
| 1938 | if (objc != 2) { |
| 1939 | Tcl_WrongNumArgs(interp, 2, objv, NULL((void*)0)); |
| 1940 | result = TCL_ERROR1; |
| 1941 | } else { |
| 1942 | ReleaseHandles(interp, idataPtr); |
| 1943 | } |
| 1944 | break; |
| 1945 | |
| 1946 | case PGetIdx: |
| 1947 | result = GetObjCmd(data, interp, objc, objv); |
| 1948 | break; |
| 1949 | |
| 1950 | case PSendIdx: |
| 1951 | if (objc != 4) { |
| 1952 | Tcl_WrongNumArgs(interp, 2, objv, "handle script"); |
| 1953 | result = TCL_ERROR1; |
| 1954 | } else { |
| 1955 | proxyId = Tcl_GetString(objv[2]); |
| 1956 | proxyPtr = GetProxy(proxyId, idataPtr); |
| 1957 | if (proxyPtr == NULL((void*)0)) { |
| 1958 | Ns_TclPrintfResult(interp, "no such handle: %s", proxyId); |
| 1959 | result = TCL_ERROR1; |
| 1960 | } else { |
| 1961 | err = Send(interp, proxyPtr, Tcl_GetString(objv[3])); |
| 1962 | result = (err == ENone) ? TCL_OK0 : TCL_ERROR1; |
| 1963 | } |
| 1964 | } |
| 1965 | break; |
| 1966 | |
| 1967 | case PWaitIdx: |
| 1968 | if (objc != 3 && objc != 4) { |
| 1969 | Tcl_WrongNumArgs(interp, 2, objv, "handle ?timeout?"); |
| 1970 | result = TCL_ERROR1; |
| 1971 | } else { |
| 1972 | Ns_Time *timeoutPtr = NULL((void*)0); |
| 1973 | |
| 1974 | proxyId = Tcl_GetString(objv[2]); |
| 1975 | proxyPtr = GetProxy(proxyId, idataPtr); |
| 1976 | if (proxyPtr == NULL((void*)0)) { |
| 1977 | Ns_TclPrintfResult(interp, "no such handle: %s", proxyId); |
| 1978 | result = TCL_ERROR1; |
| 1979 | } else if (objc > 3 && Ns_TclGetTimePtrFromObj(interp, objv[3], &timeoutPtr) != TCL_OK0) { |
| 1980 | result = TCL_ERROR1; |
| 1981 | } |
| 1982 | if (result == TCL_OK0) { |
| 1983 | err = Wait(interp, proxyPtr, timeoutPtr); |
| 1984 | result = (err == ENone) ? TCL_OK0 : TCL_ERROR1; |
| 1985 | } |
| 1986 | } |
| 1987 | break; |
| 1988 | |
| 1989 | case PRecvIdx: |
| 1990 | if (objc != 3) { |
| 1991 | Tcl_WrongNumArgs(interp, 2, objv, "handle"); |
| 1992 | result = TCL_ERROR1; |
| 1993 | } else { |
| 1994 | proxyId = Tcl_GetString(objv[2]); |
| 1995 | proxyPtr = GetProxy(proxyId, idataPtr); |
| 1996 | if (proxyPtr == NULL((void*)0)) { |
| 1997 | Ns_TclPrintfResult(interp, "no such handle: %s", proxyId); |
| 1998 | result = TCL_ERROR1; |
| 1999 | } else { |
| 2000 | err = Recv(interp, proxyPtr, &result); |
| 2001 | result = (err == ENone) ? result : TCL_ERROR1; |
| 2002 | Ns_Log(Debug, "Receive calls GetStats"); |
| 2003 | |
| 2004 | GetStats(proxyPtr); |
| 2005 | } |
| 2006 | } |
| 2007 | break; |
| 2008 | |
| 2009 | case PEvalIdx: |
| 2010 | if (objc != 4 && objc != 5) { |
| 2011 | Tcl_WrongNumArgs(interp, 2, objv, "handle script"); |
| 2012 | result = TCL_ERROR1; |
| 2013 | } else { |
| 2014 | Ns_Time *timeoutPtr = NULL((void*)0); |
| 2015 | |
| 2016 | proxyId = Tcl_GetString(objv[2]); |
| 2017 | proxyPtr = GetProxy(proxyId, idataPtr); |
| 2018 | if (proxyPtr == NULL((void*)0)) { |
| 2019 | Ns_TclPrintfResult(interp, "no such handle: %s", proxyId); |
| 2020 | result = TCL_ERROR1; |
| 2021 | } else if (objc > 4 && Ns_TclGetTimePtrFromObj(interp, objv[4], &timeoutPtr) != TCL_OK0) { |
| 2022 | result = TCL_ERROR1; |
| 2023 | } |
| 2024 | if (result == TCL_OK0) { |
| 2025 | result = Eval(interp, proxyPtr, Tcl_GetString(objv[3]), timeoutPtr); |
| 2026 | } |
| 2027 | } |
| 2028 | break; |
| 2029 | |
| 2030 | case PFreeIdx: |
| 2031 | if (objc != 3) { |
| 2032 | Tcl_WrongNumArgs(interp, 2, objv, "pool"); |
| 2033 | result = TCL_ERROR1; |
| 2034 | } else { |
| 2035 | listObj = Tcl_NewListObj(0, NULL((void*)0)); |
| 2036 | poolPtr = GetPool(Tcl_GetString(objv[2]), idataPtr); |
| 2037 | Ns_MutexLock(&poolPtr->lock); |
| 2038 | proxyPtr = poolPtr->firstPtr; |
| 2039 | while (proxyPtr != NULL((void*)0)) { |
| 2040 | Tcl_ListObjAppendElement(interp, listObj, StringObj(proxyPtr->id)); |
| 2041 | proxyPtr = proxyPtr->nextPtr; |
| 2042 | } |
| 2043 | Ns_MutexUnlock(&poolPtr->lock); |
| 2044 | Tcl_SetObjResult(interp, listObj); |
| 2045 | } |
| 2046 | break; |
| 2047 | |
| 2048 | case PHandlesIdx: |
| 2049 | if (objc == 3) { |
| 2050 | poolPtr = GetPool(Tcl_GetString(objv[2]), idataPtr); |
| 2051 | } else { |
| 2052 | poolPtr = NULL((void*)0); |
| 2053 | } |
| 2054 | listObj = Tcl_NewListObj(0, NULL((void*)0)); |
| 2055 | hPtr = Tcl_FirstHashEntry(&idataPtr->ids, &search); |
| 2056 | while (hPtr != NULL((void*)0)) { |
| 2057 | proxyPtr = (Proxy *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 2058 | if (poolPtr == NULL((void*)0) || poolPtr == proxyPtr->poolPtr) { |
| 2059 | Tcl_ListObjAppendElement(interp, listObj, StringObj(proxyPtr->id)); |
| 2060 | } |
| 2061 | hPtr = Tcl_NextHashEntry(&search); |
| 2062 | } |
| 2063 | Tcl_SetObjResult(interp, listObj); |
| 2064 | break; |
| 2065 | |
| 2066 | case PActiveIdx: |
| 2067 | if (objc < 3 || objc > 4) { |
| 2068 | Tcl_WrongNumArgs(interp, 2, objv, "pool ?handle?"); |
| 2069 | result = TCL_ERROR1; |
| 2070 | } else { |
| 2071 | poolPtr = GetPool(Tcl_GetString(objv[2]), idataPtr); |
| 2072 | proxyId = (objc >= 4) ? Tcl_GetString(objv[3]) : NULL((void*)0); |
| 2073 | Ns_MutexLock(&plock); |
| 2074 | Ns_MutexLock(&poolPtr->lock); |
| 2075 | proxyPtr = poolPtr->runPtr; |
| 2076 | while (proxyPtr != NULL((void*)0)) { |
| 2077 | if (proxyId == NULL((void*)0) || STREQ(proxyId, proxyPtr->id)(((*(proxyId)) == (*(proxyPtr->id))) && (strcmp((proxyId ),(proxyPtr->id)) == 0))) { |
| 2078 | FmtActiveProxy(interp, proxyPtr); |
| 2079 | } |
| 2080 | proxyPtr = proxyPtr->runPtr; |
| 2081 | } |
| 2082 | Ns_MutexUnlock(&poolPtr->lock); |
| 2083 | Ns_MutexUnlock(&plock); |
| 2084 | } |
| 2085 | break; |
| 2086 | |
| 2087 | case PStopIdx: |
| 2088 | result = StopObjCmd(data, interp, objc, objv); |
| 2089 | break; |
| 2090 | |
| 2091 | case PClearIdx: |
| 2092 | result = ClearObjCmd(data, interp, objc, objv); |
| 2093 | break; |
| 2094 | |
| 2095 | case PPoolsIdx: |
| 2096 | listObj = Tcl_NewListObj(0, NULL((void*)0)); |
| 2097 | Ns_MutexLock(&plock); |
| 2098 | hPtr = Tcl_FirstHashEntry(&pools, &search); |
| 2099 | while (hPtr != NULL((void*)0)) { |
| 2100 | poolPtr = (Pool *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 2101 | Tcl_ListObjAppendElement(interp, listObj, StringObj(poolPtr->name)); |
| 2102 | hPtr = Tcl_NextHashEntry(&search); |
| 2103 | } |
| 2104 | Ns_MutexUnlock(&plock); |
| 2105 | Tcl_SetObjResult(interp, listObj); |
| 2106 | break; |
| 2107 | |
| 2108 | case PStatsIdx: |
| 2109 | result = StatsObjCmd(data, interp, objc, objv); |
| 2110 | break; |
| 2111 | } |
| 2112 | |
| 2113 | return result; |
| 2114 | } |
| 2115 | |
| 2116 | |
| 2117 | /* |
| 2118 | *---------------------------------------------------------------------- |
| 2119 | * |
| 2120 | * ConfigureObjCmd -- |
| 2121 | * |
| 2122 | * Implements "ns_proxy configure". |
| 2123 | * |
| 2124 | * Results: |
| 2125 | * Standard Tcl result. |
| 2126 | * |
| 2127 | * Side effects: |
| 2128 | * Will update one or more config options. |
| 2129 | * |
| 2130 | *---------------------------------------------------------------------- |
| 2131 | */ |
| 2132 | |
| 2133 | static int |
| 2134 | ConfigureObjCmd(ClientData data, Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 2135 | { |
| 2136 | InterpData *idataPtr = data; |
| 2137 | Pool *poolPtr; |
| 2138 | Proxy *proxyPtr; |
| 2139 | int flag = 0, n, result = TCL_OK0, reap = 0; |
| 2140 | |
| 2141 | static const char *flags[] = { |
| 2142 | "-init", "-reinit", "-maxslaves", "-exec", "-env", |
| 2143 | "-gettimeout", "-evaltimeout", "-sendtimeout", "-recvtimeout", |
| 2144 | "-waittimeout", "-idletimeout", "-logminduration", "-maxruns", |
| 2145 | "-maxworkers", NULL((void*)0) |
| 2146 | }; |
| 2147 | enum { |
| 2148 | CInitIdx, CReinitIdx, CMaxslaveIdx, CExecIdx, CEnvIdx, |
| 2149 | CGetIdx, CEvalIdx, CSendIdx, CRecvIdx, |
| 2150 | CWaitIdx, CIdleIdx, CLogmindurationIdx, CMaxrunsIdx, |
| 2151 | CMaxworkerIdx |
| 2152 | }; |
| 2153 | |
| 2154 | if (objc < 3) { |
| 2155 | Tcl_WrongNumArgs(interp, 2, objv, "pool ?opt? ?val? ?opt val?..."); |
| 2156 | return TCL_ERROR1; |
| 2157 | } |
| 2158 | |
| 2159 | poolPtr = GetPool(Tcl_GetString(objv[2]), idataPtr); |
| 2160 | Ns_MutexLock(&poolPtr->lock); |
| 2161 | if (objc == 4) { |
| 2162 | if (Tcl_GetIndexFromObj(interp, objv[3], flags, "flags", 0,Tcl_GetIndexFromObjStruct(interp, objv[3], flags, sizeof(char *), "flags", 0, &flag) |
| 2163 | &flag)Tcl_GetIndexFromObjStruct(interp, objv[3], flags, sizeof(char *), "flags", 0, &flag) != TCL_OK0) { |
| 2164 | result = TCL_ERROR1; |
| 2165 | goto err; |
| 2166 | } |
| 2167 | } else if (objc > 4) { |
| 2168 | int i; |
| 2169 | const char *str; |
| 2170 | |
| 2171 | for (i = 3; i < (objc - 1); ++i) { |
| 2172 | if (Tcl_GetIndexFromObj(interp, objv[i], flags, "flags", 0,Tcl_GetIndexFromObjStruct(interp, objv[i], flags, sizeof(char *), "flags", 0, &flag) |
| 2173 | &flag)Tcl_GetIndexFromObjStruct(interp, objv[i], flags, sizeof(char *), "flags", 0, &flag)) { |
| 2174 | result = TCL_ERROR1; |
| 2175 | goto err; |
| 2176 | } |
| 2177 | ++i; |
| 2178 | str = Tcl_GetString(objv[i]); |
| 2179 | switch (flag) { |
| 2180 | case CEvalIdx: NS_FALL_THROUGH((void)0); /* fall through */ |
| 2181 | case CGetIdx: NS_FALL_THROUGH((void)0); /* fall through */ |
| 2182 | case CIdleIdx: NS_FALL_THROUGH((void)0); /* fall through */ |
| 2183 | case CLogmindurationIdx: NS_FALL_THROUGH((void)0); /* fall through */ |
| 2184 | case CRecvIdx: NS_FALL_THROUGH((void)0); /* fall through */ |
| 2185 | case CSendIdx: NS_FALL_THROUGH((void)0); /* fall through */ |
| 2186 | case CWaitIdx: { |
| 2187 | Ns_Time timeout; |
| 2188 | |
| 2189 | if (Ns_TclGetTimeFromObj(interp, objv[i], &timeout) != TCL_OK0) { |
| 2190 | result = TCL_ERROR1; |
| 2191 | goto err; |
| 2192 | } |
| 2193 | switch (flag) { |
| 2194 | case CRecvIdx: |
| 2195 | poolPtr->conf.trecv = timeout; |
| 2196 | break; |
| 2197 | case CSendIdx: |
| 2198 | poolPtr->conf.tsend = timeout; |
| 2199 | break; |
| 2200 | case CEvalIdx: |
| 2201 | poolPtr->conf.teval = timeout; |
| 2202 | break; |
| 2203 | case CWaitIdx: |
| 2204 | poolPtr->conf.twait = timeout; |
| 2205 | break; |
| 2206 | case CGetIdx: |
| 2207 | poolPtr->conf.tget = timeout; |
| 2208 | break; |
| 2209 | case CLogmindurationIdx: |
| 2210 | poolPtr->conf.logminduration = timeout; |
| 2211 | break; |
| 2212 | case CIdleIdx: |
| 2213 | { |
| 2214 | Ns_Time minIdle = { MIN_IDLE_TIMEOUT_SEC10, 0 }; |
| 2215 | |
| 2216 | poolPtr->conf.tidle = timeout; |
| 2217 | if (Ns_DiffTime(&poolPtr->conf.tidle, &minIdle, NULL((void*)0)) == -1) { |
| 2218 | poolPtr->conf.tidle = minIdle; |
| 2219 | } |
| 2220 | proxyPtr = poolPtr->firstPtr; |
| 2221 | while (proxyPtr != NULL((void*)0)) { |
| 2222 | if (proxyPtr->workerPtr != NULL((void*)0)) { |
| 2223 | SetExpire(proxyPtr->workerPtr, &proxyPtr->conf.tidle); |
| 2224 | } |
| 2225 | proxyPtr = proxyPtr->nextPtr; |
| 2226 | } |
| 2227 | reap = 1; |
| 2228 | break; |
| 2229 | } |
| 2230 | } |
| 2231 | break; |
| 2232 | } |
| 2233 | |
| 2234 | case CMaxslaveIdx: NS_FALL_THROUGH((void)0); /* fall through */ |
| 2235 | case CMaxworkerIdx: NS_FALL_THROUGH((void)0); /* fall through */ |
| 2236 | case CMaxrunsIdx: |
| 2237 | if (Tcl_GetIntFromObj(interp, objv[i], &n) != TCL_OK0) { |
| 2238 | result = TCL_ERROR1; |
| 2239 | goto err; |
| 2240 | } |
| 2241 | if (n < 0) { |
| 2242 | Ns_TclPrintfResult(interp, "invalid %s: %s", |
| 2243 | flags[flag], str); |
| 2244 | result = TCL_ERROR1; |
| 2245 | goto err; |
| 2246 | } |
| 2247 | switch (flag) { |
| 2248 | case CMaxslaveIdx: NS_FALL_THROUGH((void)0); /* fall through */ |
| 2249 | case CMaxworkerIdx: |
| 2250 | poolPtr->maxworker = n; |
| 2251 | reap = 1; |
| 2252 | break; |
| 2253 | case CMaxrunsIdx: |
| 2254 | poolPtr->conf.maxruns = n; |
| 2255 | break; |
| 2256 | } |
| 2257 | break; |
| 2258 | case CInitIdx: |
| 2259 | SetOpt(str, &poolPtr->init); |
| 2260 | break; |
| 2261 | case CReinitIdx: |
| 2262 | SetOpt(str, &poolPtr->reinit); |
| 2263 | break; |
| 2264 | case CExecIdx: |
| 2265 | SetOpt(str, &poolPtr->exec); |
| 2266 | break; |
| 2267 | case CEnvIdx: |
| 2268 | if (poolPtr->env) { |
| 2269 | Ns_SetFree(poolPtr->env); |
| 2270 | } |
| 2271 | poolPtr->env = Ns_SetCopy(Ns_TclGetSet(interp, str)); |
| 2272 | break; |
| 2273 | } |
| 2274 | } |
| 2275 | |
| 2276 | /* |
| 2277 | * Assure number of idle and used proxies always |
| 2278 | * match the maximum number of configured ones. |
| 2279 | */ |
| 2280 | |
| 2281 | while ((poolPtr->nfree + poolPtr->nused) < poolPtr->maxworker) { |
| 2282 | proxyPtr = CreateProxy(poolPtr); |
| 2283 | proxyPtr->nextPtr = poolPtr->firstPtr; |
| 2284 | poolPtr->firstPtr = proxyPtr; |
| 2285 | poolPtr->nfree++; |
| 2286 | } |
| 2287 | } |
| 2288 | |
| 2289 | /* |
| 2290 | * Construct command result |
| 2291 | */ |
| 2292 | Tcl_ResetResult(interp); |
| 2293 | |
| 2294 | if (objc == 3) { |
| 2295 | Tcl_Obj *listObj = Tcl_NewListObj(0, NULL((void*)0)); |
| 2296 | |
| 2297 | Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj(flags[CEnvIdx], -1)); |
| 2298 | if (poolPtr->env != NULL((void*)0)) { |
| 2299 | if (unlikely(Ns_TclEnterSet(interp, poolPtr->env, NS_TCL_SET_DYNAMIC) != TCL_OK)(__builtin_expect((Ns_TclEnterSet(interp, poolPtr->env, NS_TCL_SET_DYNAMIC ) != 0), 0))) { |
| 2300 | result = TCL_ERROR1; |
| 2301 | } else { |
| 2302 | /* |
| 2303 | * Ns_TclEnterSet() sets the result |
| 2304 | */ |
| 2305 | } |
| 2306 | } |
| 2307 | |
| 2308 | if (result == TCL_OK0) { |
| 2309 | Tcl_ListObjAppendElement(interp, listObj, Tcl_GetObjResult(interp)); |
| 2310 | AppendObj(listObj, flags[CExecIdx], StringObj(poolPtr->exec)); |
| 2311 | AppendObj(listObj, flags[CInitIdx], StringObj(poolPtr->init)); |
| 2312 | AppendObj(listObj, flags[CReinitIdx], StringObj(poolPtr->reinit)); |
| 2313 | AppendObj(listObj, flags[CMaxworkerIdx], Tcl_NewIntObj(poolPtr->maxworker)); |
| 2314 | AppendObj(listObj, flags[CMaxrunsIdx], Tcl_NewIntObj(poolPtr->conf.maxruns)); |
| 2315 | AppendObj(listObj, flags[CGetIdx], Ns_TclNewTimeObj(&poolPtr->conf.tget)); |
Duplicate code detected | |
| 2316 | AppendObj(listObj, flags[CEvalIdx], Ns_TclNewTimeObj(&poolPtr->conf.teval)); |
Similar code here | |
| 2317 | AppendObj(listObj, flags[CSendIdx], Ns_TclNewTimeObj(&poolPtr->conf.tsend)); |
| 2318 | AppendObj(listObj, flags[CRecvIdx], Ns_TclNewTimeObj(&poolPtr->conf.trecv)); |
| 2319 | AppendObj(listObj, flags[CWaitIdx], Ns_TclNewTimeObj(&poolPtr->conf.twait)); |
| 2320 | AppendObj(listObj, flags[CIdleIdx], Ns_TclNewTimeObj(&poolPtr->conf.tidle)); |
| 2321 | AppendObj(listObj, flags[CLogmindurationIdx], Ns_TclNewTimeObj(&poolPtr->conf.logminduration)); |
| 2322 | Tcl_SetObjResult(interp, listObj); |
| 2323 | } |
| 2324 | |
| 2325 | } else if (objc == 4) { |
| 2326 | switch (flag) { |
| 2327 | case CExecIdx: Tcl_SetObjResult(interp, StringObj(poolPtr->exec)); |
| 2328 | break; |
| 2329 | case CInitIdx: Tcl_SetObjResult(interp, StringObj(poolPtr->init)); |
| 2330 | break; |
| 2331 | case CReinitIdx: Tcl_SetObjResult(interp, StringObj(poolPtr->reinit)); |
| 2332 | break; |
| 2333 | case CMaxslaveIdx: NS_FALL_THROUGH((void)0); /* fall through */ |
| 2334 | case CMaxworkerIdx: Tcl_SetObjResult(interp, Tcl_NewIntObj(poolPtr->maxworker)); |
| 2335 | break; |
| 2336 | case CMaxrunsIdx: Tcl_SetObjResult(interp, Tcl_NewIntObj(poolPtr->conf.maxruns)); |
| 2337 | break; |
| 2338 | case CGetIdx: Tcl_SetObjResult(interp, Ns_TclNewTimeObj(&poolPtr->conf.tget)); |
| 2339 | break; |
| 2340 | case CEvalIdx: Tcl_SetObjResult(interp, Ns_TclNewTimeObj(&poolPtr->conf.teval)); |
| 2341 | break; |
| 2342 | case CSendIdx: Tcl_SetObjResult(interp, Ns_TclNewTimeObj(&poolPtr->conf.tsend)); |
| 2343 | break; |
| 2344 | case CRecvIdx: Tcl_SetObjResult(interp, Ns_TclNewTimeObj(&poolPtr->conf.trecv)); |
| 2345 | break; |
| 2346 | case CWaitIdx: Tcl_SetObjResult(interp, Ns_TclNewTimeObj(&poolPtr->conf.twait)); |
| 2347 | break; |
| 2348 | case CIdleIdx: Tcl_SetObjResult(interp, Ns_TclNewTimeObj(&poolPtr->conf.tidle)); |
| 2349 | break; |
| 2350 | case CLogmindurationIdx: Tcl_SetObjResult(interp, Ns_TclNewTimeObj(&poolPtr->conf.logminduration)); |
| 2351 | break; |
| 2352 | case CEnvIdx: |
| 2353 | if (poolPtr->env) { |
| 2354 | /* |
| 2355 | * Ns_TclEnterSet() sets the result |
| 2356 | */ |
| 2357 | if (unlikely(Ns_TclEnterSet(interp, poolPtr->env, NS_TCL_SET_DYNAMIC) != TCL_OK)(__builtin_expect((Ns_TclEnterSet(interp, poolPtr->env, NS_TCL_SET_DYNAMIC ) != 0), 0))) { |
| 2358 | result = TCL_ERROR1; |
| 2359 | } |
| 2360 | } else { |
| 2361 | /* |
| 2362 | * The result is empty. |
| 2363 | */ |
| 2364 | } |
| 2365 | break; |
| 2366 | } |
| 2367 | } else if (objc == 5) { |
| 2368 | Tcl_SetObjResult(interp, objv[4]); |
| 2369 | } |
| 2370 | |
| 2371 | err: |
| 2372 | Ns_MutexUnlock(&poolPtr->lock); |
| 2373 | |
| 2374 | /* |
| 2375 | * Optionally, wake up reaper thread |
| 2376 | * to collect closing proxies or to |
| 2377 | * enforce pool size constraints. |
| 2378 | */ |
| 2379 | |
| 2380 | if (reap != 0) { |
| 2381 | ReapProxies(); |
| 2382 | } |
| 2383 | |
| 2384 | return result; |
| 2385 | } |
| 2386 | |
| 2387 | |
| 2388 | static void |
| 2389 | SetOpt(const char *str, char const **optPtr) |
| 2390 | { |
| 2391 | NS_NONNULL_ASSERT(str != NULL)((void) (0)); |
| 2392 | NS_NONNULL_ASSERT(optPtr != NULL)((void) (0)); |
| 2393 | |
| 2394 | if (*optPtr != NULL((void*)0)) { |
| 2395 | ns_free((char*)*optPtr); |
| 2396 | } |
| 2397 | if (*str != '\0') { |
| 2398 | *optPtr = ns_strdup(str); |
| 2399 | } else { |
| 2400 | *optPtr = NULL((void*)0); |
| 2401 | } |
| 2402 | } |
| 2403 | |
| 2404 | static Tcl_Obj* |
| 2405 | StringObj(const char* chars) { |
| 2406 | Tcl_Obj *resultObj; |
| 2407 | |
| 2408 | if (chars != NULL((void*)0)) { |
| 2409 | resultObj = Tcl_NewStringObj(chars, -1); |
| 2410 | } else { |
| 2411 | resultObj = Tcl_NewStringObj("", 0); |
| 2412 | } |
| 2413 | return resultObj; |
| 2414 | } |
| 2415 | |
| 2416 | static void |
| 2417 | AppendObj(Tcl_Obj *listObj, const char *flag, Tcl_Obj *obj) |
| 2418 | { |
| 2419 | NS_NONNULL_ASSERT(listObj != NULL)((void) (0)); |
| 2420 | NS_NONNULL_ASSERT(flag != NULL)((void) (0)); |
| 2421 | |
| 2422 | Tcl_ListObjAppendElement(NULL((void*)0), listObj, StringObj(flag)); |
| 2423 | Tcl_ListObjAppendElement(NULL((void*)0), listObj, obj); |
| 2424 | } |
| 2425 | |
| 2426 | |
| 2427 | /* |
| 2428 | *---------------------------------------------------------------------- |
| 2429 | * |
| 2430 | * GetObjCmd -- |
| 2431 | * |
| 2432 | * Implements "ns_proxy get". |
| 2433 | * |
| 2434 | * Results: |
| 2435 | * Standard Tcl result. |
| 2436 | * |
| 2437 | * Side effects: |
| 2438 | * May allocate one or more handles. |
| 2439 | * |
| 2440 | *---------------------------------------------------------------------- |
| 2441 | */ |
| 2442 | |
| 2443 | static int |
| 2444 | GetObjCmd(ClientData data, Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 2445 | { |
| 2446 | InterpData *idataPtr = data; |
| 2447 | Proxy *proxyPtr, *firstPtr; |
| 2448 | Tcl_HashEntry *cntPtr, *idPtr; |
| 2449 | int isNew, nwant = 1, result = TCL_OK0; |
| 2450 | Ns_Time *timeoutPtr = NULL((void*)0); |
| 2451 | Err err; |
| 2452 | Pool *poolPtr; |
| 2453 | Ns_ObjvSpec lopts[] = { |
| 2454 | {"-timeout", Ns_ObjvTime, &timeoutPtr, NULL((void*)0)}, |
| 2455 | {"-handles", Ns_ObjvInt, &nwant, NULL((void*)0)}, |
| 2456 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 2457 | }; |
| 2458 | |
| 2459 | if (objc < 3 || (objc % 2) != 1) { |
| 2460 | Tcl_WrongNumArgs(interp, 2, objv, "pool ?-opt val -opt val ...?"); |
| 2461 | return TCL_ERROR1; |
| 2462 | } |
| 2463 | |
| 2464 | assert(idataPtr != NULL)((void) (0)); |
| 2465 | poolPtr = GetPool(Tcl_GetString(objv[2]), idataPtr); |
| 2466 | assert(poolPtr != NULL)((void) (0)); |
| 2467 | |
| 2468 | cntPtr = Tcl_CreateHashEntry(&idataPtr->cnts, (char *) poolPtr, &isNew)(*((&idataPtr->cnts)->createProc))(&idataPtr-> cnts, (const char *)((char *) poolPtr), &isNew); |
| 2469 | if ((intptr_t) Tcl_GetHashValue(cntPtr)((cntPtr)->clientData) > 0) { |
| 2470 | err = EDeadlock; |
| 2471 | goto errout; |
| 2472 | } |
| 2473 | |
| 2474 | if (Ns_ParseObjv(lopts, NULL((void*)0), interp, 3, objc, objv) != NS_OK) { |
| 2475 | return TCL_ERROR1; |
| 2476 | } |
| 2477 | |
| 2478 | if (timeoutPtr == NULL((void*)0)) { |
| 2479 | Ns_MutexLock(&poolPtr->lock); |
| 2480 | timeoutPtr = &poolPtr->conf.tget; |
| 2481 | Ns_MutexUnlock(&poolPtr->lock); |
| 2482 | } |
| 2483 | |
| 2484 | /* |
| 2485 | * Get some number of proxies from the pool |
| 2486 | */ |
| 2487 | |
| 2488 | err = PopProxy(poolPtr, &firstPtr, nwant, timeoutPtr); |
| 2489 | if (err != 0) { |
| 2490 | errout: |
| 2491 | Ns_TclPrintfResult(interp, "could not allocate from pool \"%s\": %s", |
| 2492 | poolPtr->name, errMsg[err]); |
| 2493 | ProxyError(interp, err); |
| 2494 | return TCL_ERROR1; |
| 2495 | } |
| 2496 | |
| 2497 | /* |
| 2498 | * Set total owned count and create handle ids. |
| 2499 | */ |
| 2500 | |
| 2501 | Tcl_SetHashValue(cntPtr, INT2PTR(nwant))((cntPtr)->clientData = (ClientData) (((void *)(intptr_t)( nwant)))); |
| 2502 | proxyPtr = firstPtr; |
| 2503 | while (proxyPtr != NULL((void*)0)) { |
| 2504 | idPtr = Tcl_CreateHashEntry(&idataPtr->ids, proxyPtr->id, &isNew)(*((&idataPtr->ids)->createProc))(&idataPtr-> ids, (const char *)(proxyPtr->id), &isNew); |
| 2505 | if (isNew == 0) { |
| 2506 | Ns_Fatal("nsproxy: duplicate proxy entry"); |
| 2507 | } |
| 2508 | Tcl_SetHashValue(idPtr, proxyPtr)((idPtr)->clientData = (ClientData) (proxyPtr)); |
| 2509 | proxyPtr->cntPtr = cntPtr; |
| 2510 | proxyPtr->idPtr = idPtr; |
| 2511 | proxyPtr = proxyPtr->nextPtr; |
| 2512 | } |
| 2513 | |
| 2514 | /* |
| 2515 | * Check each proxy for valid connection. |
| 2516 | */ |
| 2517 | |
| 2518 | err = ENone; |
| 2519 | proxyPtr = firstPtr; |
| 2520 | while (err == ENone && proxyPtr != NULL((void*)0)) { |
| 2521 | err = CheckProxy(interp, proxyPtr); |
| 2522 | proxyPtr = proxyPtr->nextPtr; |
| 2523 | } |
| 2524 | if (err != ENone) { |
| 2525 | while ((proxyPtr = firstPtr) != NULL((void*)0)) { |
| 2526 | firstPtr = proxyPtr->nextPtr; |
| 2527 | PushProxy(proxyPtr); |
| 2528 | } |
| 2529 | result = TCL_ERROR1; |
| 2530 | } |
| 2531 | |
| 2532 | if (result == TCL_OK0) { |
| 2533 | /* |
| 2534 | * Generate accessor commands for the returned proxies. |
| 2535 | */ |
| 2536 | Tcl_Obj *listObj = Tcl_NewListObj(0, NULL((void*)0)); |
| 2537 | |
| 2538 | proxyPtr = firstPtr; |
| 2539 | while (proxyPtr != NULL((void*)0)) { |
| 2540 | proxyPtr->cmdToken = Tcl_CreateObjCommand(interp, proxyPtr->id, |
| 2541 | RunProxyObjCmd, proxyPtr, |
| 2542 | DelProxyProc); |
| 2543 | if (proxyPtr->cmdToken == NULL((void*)0)) { |
| 2544 | result = TCL_ERROR1; |
| 2545 | break; |
| 2546 | } |
| 2547 | proxyPtr->interp = interp; |
| 2548 | Tcl_ListObjAppendElement(interp, listObj, StringObj(proxyPtr->id)); |
| 2549 | proxyPtr = proxyPtr->nextPtr; |
| 2550 | } |
| 2551 | |
| 2552 | if (result == TCL_OK0) { |
| 2553 | Tcl_SetObjResult(interp, listObj); |
| 2554 | } else { |
| 2555 | Tcl_DecrRefCount(listObj)do { Tcl_Obj *_objPtr = (listObj); if (_objPtr->refCount-- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 2556 | } |
| 2557 | } |
| 2558 | |
| 2559 | return result; |
| 2560 | } |
| 2561 | |
| 2562 | |
| 2563 | /* |
| 2564 | *---------------------------------------------------------------------- |
| 2565 | * |
| 2566 | * PopProxy -- |
| 2567 | * |
| 2568 | * Pops number of free proxies from the pool. |
| 2569 | * |
| 2570 | * Results: |
| 2571 | * Error message or NULL if all went fine.. |
| 2572 | * |
| 2573 | * Side effects: |
| 2574 | * None. |
| 2575 | * |
| 2576 | *---------------------------------------------------------------------- |
| 2577 | */ |
| 2578 | |
| 2579 | static Err |
| 2580 | PopProxy(Pool *poolPtr, Proxy **proxyPtrPtr, int nwant, const Ns_Time *timePtr) |
| 2581 | { |
| 2582 | Proxy *proxyPtr; |
| 2583 | Err err; |
| 2584 | Ns_ReturnCode status = NS_OK; |
| 2585 | Ns_Time waitTimeout; |
| 2586 | |
| 2587 | NS_NONNULL_ASSERT(poolPtr != NULL)((void) (0)); |
| 2588 | NS_NONNULL_ASSERT(proxyPtrPtr != NULL)((void) (0)); |
| 2589 | |
| 2590 | if (timePtr != NULL((void*)0)) { |
| 2591 | Ns_GetTime(&waitTimeout); |
| 2592 | Ns_IncrTime(&waitTimeout, timePtr->sec, timePtr->usec); |
| 2593 | } |
| 2594 | |
| 2595 | Ns_MutexLock(&poolPtr->lock); |
| 2596 | while (status == NS_OK && poolPtr->waiting > 0) { |
| 2597 | if (timePtr != NULL((void*)0)) { |
| 2598 | status = Ns_CondTimedWait(&poolPtr->cond, &poolPtr->lock, &waitTimeout); |
| 2599 | } else { |
| 2600 | Ns_CondWait(&poolPtr->cond, &poolPtr->lock); |
| 2601 | } |
| 2602 | } |
| 2603 | if (status != NS_OK) { |
| 2604 | err = EGetTimeout; |
| 2605 | } else { |
| 2606 | poolPtr->waiting = 1; |
| 2607 | while (status == NS_OK |
| 2608 | && poolPtr->nfree < nwant && poolPtr->maxworker >= nwant) { |
| 2609 | if (timePtr != NULL((void*)0)) { |
| 2610 | status = Ns_CondTimedWait(&poolPtr->cond, &poolPtr->lock, |
| 2611 | &waitTimeout); |
| 2612 | } else { |
| 2613 | Ns_CondWait(&poolPtr->cond, &poolPtr->lock); |
| 2614 | } |
| 2615 | } |
| 2616 | if (status != NS_OK) { |
| 2617 | err = EGetTimeout; |
| 2618 | } else if (poolPtr->maxworker == 0 || poolPtr->maxworker < nwant) { |
| 2619 | err = ERange; |
| 2620 | } else { |
| 2621 | int i; |
| 2622 | |
| 2623 | poolPtr->nfree -= nwant; |
| 2624 | poolPtr->nused += nwant; |
| 2625 | |
| 2626 | for (i = 0, *proxyPtrPtr = NULL((void*)0); i < nwant; ++i) { |
| 2627 | proxyPtr = poolPtr->firstPtr; |
| 2628 | poolPtr->firstPtr = proxyPtr->nextPtr; |
| 2629 | proxyPtr->nextPtr = *proxyPtrPtr; |
| 2630 | *proxyPtrPtr = proxyPtr; |
| 2631 | proxyPtr->conf = poolPtr->conf; |
| 2632 | } |
| 2633 | err = ENone; |
| 2634 | } |
| 2635 | poolPtr->waiting = 0; |
| 2636 | Ns_CondBroadcast(&poolPtr->cond); |
| 2637 | } |
| 2638 | Ns_MutexUnlock(&poolPtr->lock); |
| 2639 | |
| 2640 | return err; |
| 2641 | } |
| 2642 | |
| 2643 | |
| 2644 | /* |
| 2645 | *---------------------------------------------------------------------- |
| 2646 | * |
| 2647 | * FmtActiveProxy -- |
| 2648 | * |
| 2649 | * Fills in the interp result with list of proxy values.. |
| 2650 | * |
| 2651 | * Results: |
| 2652 | * None. |
| 2653 | * |
| 2654 | * Side effects: |
| 2655 | * None. |
| 2656 | * |
| 2657 | *---------------------------------------------------------------------- |
| 2658 | */ |
| 2659 | |
| 2660 | static void |
| 2661 | FmtActiveProxy(Tcl_Interp *interp, const Proxy *proxyPtr) |
| 2662 | { |
| 2663 | Tcl_DString ds; |
| 2664 | |
| 2665 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 2666 | NS_NONNULL_ASSERT(proxyPtr != NULL)((void) (0)); |
| 2667 | |
| 2668 | Tcl_DStringInit(&ds); |
| 2669 | Tcl_DStringGetResult(interp, &ds); |
| 2670 | |
| 2671 | Tcl_DStringStartSublist(&ds); |
| 2672 | Ns_DStringPrintf(&ds, "handle %s slave %ld start " NS_TIME_FMT"%" "l" "d" ".%06ld" " script", |
| 2673 | proxyPtr->id, |
| 2674 | (long) ((proxyPtr->workerPtr != NULL((void*)0)) ? proxyPtr->workerPtr->pid : 0), |
| 2675 | (int64_t) proxyPtr->when.sec, |
| 2676 | proxyPtr->when.usec); |
| 2677 | |
| 2678 | Tcl_DStringAppendElement(&ds, Tcl_DStringValue(&proxyPtr->in)((&proxyPtr->in)->string) + sizeof(Req)); |
| 2679 | Tcl_DStringEndSublist(&ds); |
| 2680 | |
| 2681 | Tcl_DStringResult(interp, &ds); |
| 2682 | } |
| 2683 | |
| 2684 | |
| 2685 | /* |
| 2686 | *---------------------------------------------------------------------- |
| 2687 | * |
| 2688 | * GetPool -- |
| 2689 | * |
| 2690 | * Get a pool by name. |
| 2691 | * |
| 2692 | * Results: |
| 2693 | * Pool pointer. |
| 2694 | * |
| 2695 | * Side effects: |
| 2696 | * Will update given poolPtrPtr with pointer to Pool. |
| 2697 | * |
| 2698 | *---------------------------------------------------------------------- |
| 2699 | */ |
| 2700 | |
| 2701 | static Pool* |
| 2702 | GetPool(const char *poolName, const InterpData *idataPtr) |
| 2703 | { |
| 2704 | Tcl_HashEntry *hPtr; |
| 2705 | Pool *poolPtr; |
| 2706 | Proxy *proxyPtr; |
| 2707 | int isNew; |
| 2708 | |
| 2709 | NS_NONNULL_ASSERT(poolName != NULL)((void) (0)); |
| 2710 | |
| 2711 | Ns_MutexLock(&plock); |
| 2712 | hPtr = Tcl_CreateHashEntry(&pools, poolName, &isNew)(*((&pools)->createProc))(&pools, (const char *)(poolName ), &isNew); |
| 2713 | if (isNew == 0) { |
| 2714 | poolPtr = (Pool *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 2715 | |
| 2716 | } else { |
| 2717 | poolPtr = ns_calloc(1u, sizeof(Pool)); |
| 2718 | Tcl_SetHashValue(hPtr, poolPtr)((hPtr)->clientData = (ClientData) (poolPtr)); |
| 2719 | poolPtr->name = Tcl_GetHashKey(&pools, hPtr)((void *) (((&pools)->keyType == (1) || (&pools)-> keyType == (-1)) ? (hPtr)->key.oneWordValue : (hPtr)->key .string)); |
| 2720 | |
| 2721 | /* |
| 2722 | * If we have idataPtr with a "server" and "module" we can fill into |
| 2723 | * the pool structure the values from the config file. |
| 2724 | */ |
| 2725 | if (idataPtr == NULL((void*)0) || idataPtr->server == NULL((void*)0) || idataPtr->module == NULL((void*)0)) { |
| 2726 | /* |
| 2727 | * Just default values. When is this path taken? |
| 2728 | */ |
| 2729 | SetOpt(Tcl_DStringValue(&defexec)((&defexec)->string), &poolPtr->exec); |
| 2730 | |
| 2731 | /* |
| 2732 | * Just fill out non-null values. |
| 2733 | */ |
| 2734 | poolPtr->conf.tsend.sec = 5; |
| 2735 | poolPtr->conf.trecv.sec = 5; |
| 2736 | poolPtr->conf.twait.sec = 1; |
| 2737 | poolPtr->conf.tidle.sec = 5 * 60; |
| 2738 | poolPtr->maxworker = 8; |
| 2739 | poolPtr->conf.logminduration.sec = 1; |
| 2740 | |
| 2741 | } else { |
| 2742 | const char *exec, *path; |
| 2743 | |
| 2744 | path = Ns_ConfigSectionPath(NULL((void*)0), idataPtr->server, idataPtr->module, (char *)0L); |
| 2745 | exec = Ns_ConfigGetValue(path, "exec"); |
| 2746 | if (exec != NULL((void*)0)) { |
| 2747 | SetOpt(exec, &poolPtr->exec); |
| 2748 | } else { |
| 2749 | SetOpt(Tcl_DStringValue(&defexec)((&defexec)->string), &poolPtr->exec); |
| 2750 | } |
| 2751 | Ns_ConfigTimeUnitRange(path, "gettimeout", |
| 2752 | "0ms", 0, 0, INT_MAX2147483647, 0, |
| 2753 | &poolPtr->conf.tget); |
| 2754 | |
| 2755 | Ns_ConfigTimeUnitRange(path, "evaltimeout", |
| 2756 | "0ms", 0, 0, INT_MAX2147483647, 0, |
| 2757 | &poolPtr->conf.teval); |
| 2758 | |
| 2759 | Ns_ConfigTimeUnitRange(path, "sendtimeout", |
| 2760 | "5s", 0, 0, INT_MAX2147483647, 0, |
| 2761 | &poolPtr->conf.tsend); |
| 2762 | |
| 2763 | Ns_ConfigTimeUnitRange(path, "recvtimeout", |
| 2764 | "5s", 0, 0, INT_MAX2147483647, 0, |
| 2765 | &poolPtr->conf.trecv); |
| 2766 | |
| 2767 | Ns_ConfigTimeUnitRange(path, "waittimeout", |
| 2768 | "1s", 0, 0, INT_MAX2147483647, 0, |
| 2769 | &poolPtr->conf.twait); |
| 2770 | |
| 2771 | Ns_ConfigTimeUnitRange(path, "idletimeout", |
| 2772 | "5m", MIN_IDLE_TIMEOUT_SEC10, 0, INT_MAX2147483647, 0, |
| 2773 | &poolPtr->conf.tidle); |
| 2774 | |
| 2775 | { |
| 2776 | int max = Ns_ConfigInt(path, "maxworker", -1); |
| 2777 | if (max == -1) { |
| 2778 | max = Ns_ConfigInt(path, "maxslaves", -1); |
| 2779 | } |
| 2780 | if (max == -1) { |
| 2781 | max = 8; |
| 2782 | } |
| 2783 | poolPtr->maxworker = max; |
| 2784 | } |
| 2785 | |
| 2786 | Ns_ConfigTimeUnitRange(path, "logminduration", |
| 2787 | "1s", 0, 0, INT_MAX2147483647, 0, |
| 2788 | &poolPtr->conf.logminduration); |
| 2789 | } |
| 2790 | |
| 2791 | { |
| 2792 | int i; |
| 2793 | for (i = 0; i < poolPtr->maxworker; i++) { |
| 2794 | proxyPtr = CreateProxy(poolPtr); |
| 2795 | proxyPtr->nextPtr = poolPtr->firstPtr; |
| 2796 | poolPtr->firstPtr = proxyPtr; |
| 2797 | poolPtr->nfree++; |
| 2798 | } |
| 2799 | } |
| 2800 | Ns_CondInit(&poolPtr->cond); |
| 2801 | Ns_MutexInit(&poolPtr->lock); |
| 2802 | Ns_MutexSetName2(&poolPtr->lock, "nsproxy", poolName); |
| 2803 | |
| 2804 | } |
| 2805 | Ns_MutexUnlock(&plock); |
| 2806 | |
| 2807 | return poolPtr; |
| 2808 | } |
| 2809 | |
| 2810 | /* |
| 2811 | *---------------------------------------------------------------------- |
| 2812 | * |
| 2813 | * CreateProxy -- |
| 2814 | * |
| 2815 | * Create new proxy handle. |
| 2816 | * |
| 2817 | * Results: |
| 2818 | * Proxy handle. |
| 2819 | * |
| 2820 | * Side effects: |
| 2821 | * Assumes pool lock is held. |
| 2822 | * |
| 2823 | *---------------------------------------------------------------------- |
| 2824 | */ |
| 2825 | |
| 2826 | static Proxy* |
| 2827 | CreateProxy(Pool *poolPtr) |
| 2828 | { |
| 2829 | Proxy *proxyPtr; |
| 2830 | char buf[TCL_INTEGER_SPACE24]; |
| 2831 | size_t nameLength; |
| 2832 | int idLength; |
| 2833 | |
| 2834 | NS_NONNULL_ASSERT(poolPtr != NULL)((void) (0)); |
| 2835 | |
| 2836 | idLength = snprintf(buf, sizeof(buf), "%" PRIuPTR, poolPtr->nextid++)__builtin___snprintf_chk (buf, sizeof(buf), 2 - 1, __builtin_object_size (buf, 2 > 1), "%" "l" "u", poolPtr->nextid++); |
| 2837 | nameLength = strlen(poolPtr->name); |
| 2838 | |
| 2839 | proxyPtr = ns_calloc(1u, sizeof(Proxy)); |
| 2840 | proxyPtr->poolPtr = poolPtr; |
| 2841 | |
| 2842 | proxyPtr->id = ns_calloc(1u, strlen(buf) + nameLength + 2u); |
| 2843 | memcpy(proxyPtr->id, poolPtr->name, nameLength); |
| 2844 | *(proxyPtr->id + nameLength) = '-'; |
| 2845 | memcpy(proxyPtr->id + nameLength + 1u, buf, (size_t)idLength + 1u); |
| 2846 | |
| 2847 | Tcl_DStringInit(&proxyPtr->in); |
| 2848 | Tcl_DStringInit(&proxyPtr->out); |
| 2849 | |
| 2850 | return proxyPtr; |
| 2851 | } |
| 2852 | |
| 2853 | |
| 2854 | /* |
| 2855 | *---------------------------------------------------------------------- |
| 2856 | * |
| 2857 | * GetProxy -- |
| 2858 | * |
| 2859 | * Get a previously allocated proxy handle. |
| 2860 | * |
| 2861 | * Results: |
| 2862 | * Pointer to the proxy. |
| 2863 | * |
| 2864 | * Side effects: |
| 2865 | * Imposes maxruns limit. |
| 2866 | * |
| 2867 | *---------------------------------------------------------------------- |
| 2868 | */ |
| 2869 | |
| 2870 | static Proxy* |
| 2871 | GetProxy(const char *proxyId, InterpData *idataPtr) |
| 2872 | { |
| 2873 | const Tcl_HashEntry *hPtr; |
| 2874 | Proxy *result = NULL((void*)0); |
| 2875 | |
| 2876 | hPtr = Tcl_FindHashEntry(&idataPtr->ids, proxyId)(*((&idataPtr->ids)->findProc))(&idataPtr->ids , (const char *)(proxyId)); |
| 2877 | if (likely(hPtr != NULL)(__builtin_expect((hPtr != ((void*)0)), 1))) { |
| 2878 | result = (Proxy *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 2879 | } |
| 2880 | |
| 2881 | return result; |
| 2882 | } |
| 2883 | |
| 2884 | |
| 2885 | /* |
| 2886 | *---------------------------------------------------------------------- |
| 2887 | * |
| 2888 | * CheckProxy -- |
| 2889 | * |
| 2890 | * Check a proxy, pinging the proc and creating a new worker processes as |
| 2891 | * needed. |
| 2892 | * |
| 2893 | * Results: |
| 2894 | * ENone if proxy OK, other error if worker process could not be created. |
| 2895 | * |
| 2896 | * Side effects: |
| 2897 | * None. |
| 2898 | * |
| 2899 | *---------------------------------------------------------------------- |
| 2900 | */ |
| 2901 | |
| 2902 | static Err |
| 2903 | CheckProxy(Tcl_Interp *interp, Proxy *proxyPtr) |
| 2904 | { |
| 2905 | Err err = ENone; |
| 2906 | |
| 2907 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 2908 | NS_NONNULL_ASSERT(proxyPtr != NULL)((void) (0)); |
| 2909 | |
| 2910 | if ((proxyPtr->workerPtr != NULL((void*)0)) |
| 2911 | && (Eval(interp, proxyPtr, NULL((void*)0), NULL((void*)0)) != TCL_OK0) |
| 2912 | ) { |
| 2913 | CloseProxy(proxyPtr); |
| 2914 | Tcl_ResetResult(interp); |
| 2915 | } |
| 2916 | if (proxyPtr->workerPtr == NULL((void*)0)) { |
| 2917 | err = CreateWorker(interp, proxyPtr); |
| 2918 | } |
| 2919 | |
| 2920 | return err; |
| 2921 | } |
| 2922 | |
| 2923 | |
| 2924 | /* |
| 2925 | *---------------------------------------------------------------------- |
| 2926 | * |
| 2927 | * CreateWorker -- |
| 2928 | * |
| 2929 | * Create new proxy worker process |
| 2930 | * |
| 2931 | * Results: |
| 2932 | * ENone if proxy OK, other error if worker could not be created. |
| 2933 | * |
| 2934 | * Side effects: |
| 2935 | * |
| 2936 | * |
| 2937 | *---------------------------------------------------------------------- |
| 2938 | */ |
| 2939 | |
| 2940 | static Err |
| 2941 | CreateWorker(Tcl_Interp *interp, Proxy *proxyPtr) |
| 2942 | { |
| 2943 | Pool *poolPtr; |
| 2944 | Err err; |
| 2945 | int init; |
| 2946 | Tcl_DString ds; |
| 2947 | |
| 2948 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 2949 | NS_NONNULL_ASSERT(proxyPtr != NULL)((void) (0)); |
| 2950 | |
| 2951 | poolPtr = proxyPtr->poolPtr; |
| 2952 | |
| 2953 | Tcl_DStringInit(&ds); |
| 2954 | Ns_MutexLock(&poolPtr->lock); |
| 2955 | init = proxyPtr->poolPtr->init != NULL((void*)0); |
| 2956 | if (init != 0) { |
| 2957 | Tcl_DStringAppend(&ds, poolPtr->init, -1); |
| 2958 | } |
| 2959 | Ns_MutexUnlock(&poolPtr->lock); |
| 2960 | proxyPtr->workerPtr = ExecWorker(interp, proxyPtr); |
| 2961 | if (proxyPtr->workerPtr == NULL((void*)0)) { |
| 2962 | err = EExec; |
| 2963 | } else if (init != 0 |
| 2964 | && (Eval(interp, proxyPtr, Tcl_DStringValue(&ds)((&ds)->string), NULL((void*)0)) != TCL_OK0) |
| 2965 | ) { |
| 2966 | CloseProxy(proxyPtr); |
| 2967 | err = EInit; |
| 2968 | } else if (Eval(interp, proxyPtr, NULL((void*)0), NULL((void*)0)) != TCL_OK0) { |
| 2969 | CloseProxy(proxyPtr); |
| 2970 | err = EInit; |
| 2971 | } else { |
| 2972 | err = ENone; |
| 2973 | Tcl_ResetResult(interp); |
| 2974 | } |
| 2975 | Tcl_DStringFree(&ds); |
| 2976 | if (err != EExec) { |
| 2977 | ReapProxies(); |
| 2978 | } |
| 2979 | |
| 2980 | return err; |
| 2981 | } |
| 2982 | |
| 2983 | |
| 2984 | /* |
| 2985 | *---------------------------------------------------------------------- |
| 2986 | * |
| 2987 | * ResetProxy -- |
| 2988 | * |
| 2989 | * Reset a proxy preparing it for the next request. |
| 2990 | * |
| 2991 | * Results: |
| 2992 | * None. |
| 2993 | * |
| 2994 | * Side effects: |
| 2995 | * None. |
| 2996 | * |
| 2997 | *---------------------------------------------------------------------- |
| 2998 | */ |
| 2999 | |
| 3000 | static void |
| 3001 | ResetProxy(Proxy *proxyPtr) |
| 3002 | { |
| 3003 | Pool *poolPtr; |
| 3004 | Proxy *runPtr, *prevPtr; |
| 3005 | |
| 3006 | NS_NONNULL_ASSERT(proxyPtr)((void) (0)); |
| 3007 | |
| 3008 | poolPtr = proxyPtr->poolPtr; |
| 3009 | /* |
| 3010 | * Non-idle proxies will be closed forcefully |
| 3011 | */ |
| 3012 | |
| 3013 | if (proxyPtr->state != Idle) { |
| 3014 | CloseProxy(proxyPtr); |
| 3015 | proxyPtr->state = Idle; |
| 3016 | } |
| 3017 | |
| 3018 | /* |
| 3019 | * Splice out of the run queue |
| 3020 | */ |
| 3021 | |
| 3022 | Ns_MutexLock(&poolPtr->lock); |
| 3023 | runPtr = prevPtr = poolPtr->runPtr; |
| 3024 | while (runPtr != NULL((void*)0) && runPtr != proxyPtr) { |
| 3025 | prevPtr = runPtr; |
| 3026 | runPtr = runPtr->runPtr; |
| 3027 | } |
| 3028 | if (runPtr != NULL((void*)0)) { |
| 3029 | if (runPtr == poolPtr->runPtr) { |
| 3030 | poolPtr->runPtr = runPtr->runPtr; |
| 3031 | } else { |
| 3032 | prevPtr->runPtr = runPtr->runPtr; |
| 3033 | } |
| 3034 | } else if (prevPtr != NULL((void*)0)) { |
| 3035 | prevPtr->runPtr = NULL((void*)0); |
| 3036 | } |
| 3037 | Ns_MutexUnlock(&poolPtr->lock); |
| 3038 | |
| 3039 | Tcl_DStringSetLength(&proxyPtr->in, 0); |
| 3040 | Tcl_DStringSetLength(&proxyPtr->out, 0); |
| 3041 | } |
| 3042 | |
| 3043 | |
| 3044 | /* |
| 3045 | *---------------------------------------------------------------------- |
| 3046 | * |
| 3047 | * CloseWorker -- |
| 3048 | * |
| 3049 | * Close the given proc handle. |
| 3050 | * |
| 3051 | * Results: |
| 3052 | * None. |
| 3053 | * |
| 3054 | * Side effects: |
| 3055 | * Puts the proc structure to the close list so the reaper thread |
| 3056 | * can eventually close it. Assumes global lock is held. |
| 3057 | * |
| 3058 | *---------------------------------------------------------------------- |
| 3059 | */ |
| 3060 | |
| 3061 | static void |
| 3062 | CloseWorker(Worker *workerPtr, const Ns_Time *timePtr) |
| 3063 | { |
| 3064 | NS_NONNULL_ASSERT(workerPtr != NULL)((void) (0)); |
| 3065 | |
| 3066 | Ns_Log(Ns_LogNsProxyDebug, "nsproxy [%s]: close worker %ld (expire %ld ms)", |
| 3067 | workerPtr->poolPtr->name, (long) workerPtr->pid, |
| 3068 | timePtr != NULL((void*)0) ? (long)Ns_TimeToMilliseconds(timePtr) : -1); |
| 3069 | |
| 3070 | /* |
| 3071 | * Set the time to kill the worker process. Reaper thread will use passed |
| 3072 | * time to wait for the worker process to exit gracefully. Otherwise, it |
| 3073 | * will start attempts to stop the worker by sending signals to it (polite |
| 3074 | * and unpolite). |
| 3075 | */ |
| 3076 | |
| 3077 | SetExpire(workerPtr, timePtr); |
| 3078 | |
| 3079 | /* |
| 3080 | * Closing the write pipe should normally make proxy exit. |
| 3081 | */ |
| 3082 | |
| 3083 | ns_closeclose(workerPtr->wfd); |
| 3084 | workerPtr->signal = 0; |
| 3085 | workerPtr->sigsent = 0; |
| 3086 | |
| 3087 | /* |
| 3088 | * Put on the head of the close list so it is handled by |
| 3089 | * the reaper thread. |
| 3090 | */ |
| 3091 | |
| 3092 | workerPtr->nextPtr = firstClosePtr; |
| 3093 | firstClosePtr = workerPtr; |
| 3094 | |
| 3095 | Ns_Log(Ns_LogNsProxyDebug, "nsproxy [%s]: worker %ld closed", |
| 3096 | workerPtr->poolPtr->name, (long) workerPtr->pid); |
| 3097 | } |
| 3098 | |
| 3099 | |
| 3100 | static int |
| 3101 | CloseWorkerOfProxy(Proxy *proxyPtr, const char *proxyId, const Ns_Time *timePtr) |
| 3102 | { |
| 3103 | int reap = 0; |
| 3104 | |
| 3105 | NS_NONNULL_ASSERT(proxyPtr != NULL)((void) (0)); |
| 3106 | |
| 3107 | if (proxyId == NULL((void*)0) || STREQ(proxyId, proxyPtr->id)(((*(proxyId)) == (*(proxyPtr->id))) && (strcmp((proxyId ),(proxyPtr->id)) == 0))) { |
| 3108 | if (proxyPtr->workerPtr != NULL((void*)0)) { |
| 3109 | CloseWorker(proxyPtr->workerPtr, timePtr); |
| 3110 | proxyPtr->workerPtr = NULL((void*)0); |
| 3111 | reap = 1; |
| 3112 | } |
| 3113 | } |
| 3114 | return reap; |
| 3115 | } |
| 3116 | |
| 3117 | |
| 3118 | /* |
| 3119 | *---------------------------------------------------------------------- |
| 3120 | * |
| 3121 | * CloseProxy -- |
| 3122 | * |
| 3123 | * Close the given proxy handle. |
| 3124 | * |
| 3125 | * Results: |
| 3126 | * None. |
| 3127 | * |
| 3128 | * Side effects: |
| 3129 | * Starts the thread which reaps worker processes. |
| 3130 | * |
| 3131 | *---------------------------------------------------------------------- |
| 3132 | */ |
| 3133 | |
| 3134 | static void |
| 3135 | CloseProxy(Proxy *proxyPtr) |
| 3136 | { |
| 3137 | NS_NONNULL_ASSERT(proxyPtr)((void) (0)); |
| 3138 | |
| 3139 | if (proxyPtr->workerPtr != NULL((void*)0)) { |
| 3140 | Ns_MutexLock(&plock); |
| 3141 | CloseWorker(proxyPtr->workerPtr, &proxyPtr->conf.twait); |
| 3142 | proxyPtr->workerPtr = NULL((void*)0); |
| 3143 | proxyPtr->numruns = 0; |
| 3144 | Ns_MutexUnlock(&plock); |
| 3145 | ReapProxies(); |
| 3146 | } |
| 3147 | } |
| 3148 | |
| 3149 | |
| 3150 | /* |
| 3151 | *---------------------------------------------------------------------- |
| 3152 | * |
| 3153 | * ReaperThread -- |
| 3154 | * |
| 3155 | * Detached thread which closes expired workers or workers |
| 3156 | * explicitly put on the close list. |
| 3157 | * |
| 3158 | * Results: |
| 3159 | * None. |
| 3160 | * |
| 3161 | * Side effects: |
| 3162 | * None. |
| 3163 | * |
| 3164 | *---------------------------------------------------------------------- |
| 3165 | */ |
| 3166 | |
| 3167 | static void |
| 3168 | ReaperThread(void *UNUSED(arg)UNUSED_arg __attribute__((__unused__))) |
| 3169 | { |
| 3170 | Tcl_HashSearch search; |
| 3171 | Proxy *proxyPtr, *prevPtr, *nextPtr; |
| 3172 | Pool *poolPtr; |
| 3173 | Worker *workerPtr, *tmpWorkerPtr; |
| 3174 | Ns_Time timeout, now, diff; |
| 3175 | long ntotal; |
| 3176 | |
| 3177 | Ns_ThreadSetName("-nsproxy:reap-"); |
| 3178 | Ns_Log(Notice, "starting"); |
| 3179 | |
| 3180 | Ns_MutexLock(&plock); |
| 3181 | |
| 3182 | reaperState = Running; |
| 3183 | Ns_CondSignal(&pcond); /* Wakeup starter thread */ |
| 3184 | |
| 3185 | for (;;) { |
| 3186 | Tcl_HashEntry *hPtr; |
| 3187 | Worker *prevWorkerPtr; |
| 3188 | |
| 3189 | Ns_GetTime(&now); |
| 3190 | |
| 3191 | timeout.sec = TIME_T_MAX9223372036854775807L; |
| 3192 | timeout.usec = 0; |
| 3193 | |
| 3194 | Ns_Log(Ns_LogNsProxyDebug, "reaper run"); |
| 3195 | |
| 3196 | /* |
| 3197 | * Check all proxy pools and see if there are |
| 3198 | * idle processes we can get rid off. Also |
| 3199 | * adjust the time to wait until the next |
| 3200 | * run of the loop. |
| 3201 | */ |
| 3202 | |
| 3203 | hPtr = Tcl_FirstHashEntry(&pools, &search); |
| 3204 | while (hPtr != NULL((void*)0)) { |
| 3205 | |
| 3206 | /* |
| 3207 | * Get max time to wait for the whole pool |
| 3208 | */ |
| 3209 | |
| 3210 | poolPtr = (Pool *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 3211 | |
| 3212 | Ns_Log(Ns_LogNsProxyDebug, "reaper checks pool %s", poolPtr->name); |
| 3213 | |
| 3214 | Ns_MutexLock(&poolPtr->lock); |
| 3215 | if (poolPtr->conf.tidle.sec != 0 && poolPtr->conf.tidle.usec != 0) { |
| 3216 | diff = now; |
| 3217 | Ns_IncrTime(&diff, poolPtr->conf.tidle.sec, poolPtr->conf.tidle.usec); |
| 3218 | if (Ns_DiffTime(&diff, &timeout, NULL((void*)0)) < 0) { |
| 3219 | timeout = diff; |
| 3220 | Ns_Log(Ns_LogNsProxyDebug, "reaper sets timeout based on idle " |
| 3221 | "diff " NS_TIME_FMT"%" "l" "d" ".%06ld" " of pool %s", |
| 3222 | (int64_t)timeout.sec, timeout.usec, poolPtr->name); |
| 3223 | } |
| 3224 | } |
| 3225 | |
| 3226 | /* |
| 3227 | * Get max time to wait for one of the worker process. |
| 3228 | * This is less than the time for the whole pool. |
| 3229 | */ |
| 3230 | |
| 3231 | proxyPtr = poolPtr->firstPtr; |
| 3232 | prevPtr = NULL((void*)0); |
| 3233 | while (proxyPtr != NULL((void*)0)) { |
| 3234 | bool_Bool expired; |
| 3235 | |
| 3236 | nextPtr = proxyPtr->nextPtr; |
| 3237 | workerPtr = proxyPtr->workerPtr; |
| 3238 | ntotal = poolPtr->nfree + poolPtr->nused; |
| 3239 | if (workerPtr != NULL((void*)0)) { |
| 3240 | expired = (Ns_DiffTime(&workerPtr->expire, &now, NULL((void*)0)) <= 0); |
| 3241 | Ns_Log(Ns_LogNsProxyDebug, "pool %s worker %ld expired %d", |
| 3242 | poolPtr->name, (long)workerPtr->pid, expired); |
| 3243 | |
| 3244 | if (!expired && Ns_DiffTime(&workerPtr->expire, &timeout, NULL((void*)0)) <= 0) { |
| 3245 | timeout = workerPtr->expire; |
| 3246 | Ns_Log(Ns_LogNsProxyDebug, "reaper sets timeout based on " |
| 3247 | "expire " NS_TIME_FMT"%" "l" "d" ".%06ld" " pool %s worker %ld", |
| 3248 | (int64_t)timeout.sec, timeout.usec, poolPtr->name, |
| 3249 | (long)workerPtr->pid); |
| 3250 | } |
| 3251 | } else { |
| 3252 | expired = NS_FALSE0; |
| 3253 | } |
| 3254 | if (poolPtr->maxworker < ntotal) { |
| 3255 | /* |
| 3256 | * Prune the excessive proxy and close the worker. |
| 3257 | */ |
| 3258 | if (prevPtr != NULL((void*)0)) { |
| 3259 | prevPtr->nextPtr = proxyPtr->nextPtr; |
| 3260 | } |
| 3261 | if (proxyPtr == poolPtr->firstPtr) { |
| 3262 | poolPtr->firstPtr = proxyPtr->nextPtr; |
| 3263 | } |
| 3264 | if (workerPtr != NULL((void*)0)) { |
| 3265 | CloseWorker(workerPtr, &proxyPtr->conf.twait); |
| 3266 | } |
| 3267 | FreeProxy(proxyPtr); |
| 3268 | proxyPtr = NULL((void*)0); |
| 3269 | poolPtr->nfree--; |
| 3270 | } else if (expired) { |
| 3271 | /* |
| 3272 | * Close the worker but leave the proxy. |
| 3273 | */ |
| 3274 | CloseWorker(proxyPtr->workerPtr, &proxyPtr->conf.twait); |
| 3275 | proxyPtr->workerPtr = NULL((void*)0); |
| 3276 | } |
| 3277 | if (proxyPtr != NULL((void*)0)) { |
| 3278 | prevPtr = proxyPtr; |
| 3279 | } |
| 3280 | proxyPtr = nextPtr; |
| 3281 | } |
| 3282 | Ns_MutexUnlock(&poolPtr->lock); |
| 3283 | hPtr = Tcl_NextHashEntry(&search); |
| 3284 | } |
| 3285 | |
| 3286 | /* |
| 3287 | * Check any closing procs. Also adjust the time |
| 3288 | * to wait until the next run of the loop. |
| 3289 | */ |
| 3290 | |
| 3291 | workerPtr = firstClosePtr; |
| 3292 | prevWorkerPtr = NULL((void*)0); |
| 3293 | |
| 3294 | while (workerPtr != NULL((void*)0)) { |
| 3295 | if (Ns_DiffTime(&now, &workerPtr->expire, NULL((void*)0)) > 0) { |
| 3296 | |
| 3297 | /* |
| 3298 | * Stop time expired, add new quantum and signal |
| 3299 | * the process to exit. After first quantum has |
| 3300 | * expired, be polite and try the TERM signal. |
| 3301 | * If this does not get the process down within |
| 3302 | * the second quantum, try the KILL signal. |
| 3303 | * If this does not get the process down within |
| 3304 | * the third quantum, abort - we have a zombie. |
| 3305 | */ |
| 3306 | |
| 3307 | Ns_IncrTime(&workerPtr->expire, |
| 3308 | workerPtr->poolPtr->conf.twait.sec, |
| 3309 | workerPtr->poolPtr->conf.twait.usec); |
| 3310 | switch (workerPtr->signal) { |
| 3311 | case 0: workerPtr->signal = SIGTERM15; break; |
| 3312 | case SIGTERM15: workerPtr->signal = SIGKILL9; break; |
| 3313 | case SIGKILL9: workerPtr->signal = -1; break; |
| 3314 | } |
| 3315 | } |
| 3316 | |
| 3317 | if (workerPtr->signal == -1 |
| 3318 | || workerPtr->rfd == NS_INVALID_FD(-1) |
| 3319 | || WaitFd(workerPtr->rfd, POLLIN0x001, 0)) { |
| 3320 | |
| 3321 | /* |
| 3322 | * We either have timeouted eval (rfd==NS_INVALID_FD), a |
| 3323 | * zombie or the process has exited ok so splice it out the |
| 3324 | * list. |
| 3325 | */ |
| 3326 | |
| 3327 | if (prevWorkerPtr != NULL((void*)0)) { |
| 3328 | prevWorkerPtr->nextPtr = workerPtr->nextPtr; |
| 3329 | } else { |
| 3330 | firstClosePtr = workerPtr->nextPtr; |
| 3331 | } |
| 3332 | |
| 3333 | if (workerPtr->signal == -1) { |
| 3334 | Ns_Log(Warning, "nsproxy: zombie: %ld", (long)workerPtr->pid); |
| 3335 | } else { |
| 3336 | int waitStatus = 0; |
| 3337 | |
| 3338 | /* |
| 3339 | * Pass waitStatus ptr to Ns_WaitForProcessStatus() to |
| 3340 | * indicate that we want to handle the signal here and to |
| 3341 | * suppress warning entries in the error.log. |
| 3342 | * |
| 3343 | * The following wait operation should not really wait |
| 3344 | * but it is better to play safe. |
| 3345 | */ |
| 3346 | |
| 3347 | Ns_MutexUnlock(&plock); |
| 3348 | (void) Ns_WaitForProcessStatus(workerPtr->pid, NULL((void*)0), &waitStatus); |
| 3349 | Ns_MutexLock(&plock); |
| 3350 | #ifdef WTERMSIG |
| 3351 | if (workerPtr->signal != 0 && WTERMSIG(waitStatus)((waitStatus) & 0x7f) != 0) { |
| 3352 | Ns_LogSeverity severity; |
| 3353 | |
| 3354 | if (WTERMSIG(waitStatus)((waitStatus) & 0x7f) != workerPtr->signal) { |
| 3355 | severity = Warning; |
| 3356 | } else { |
| 3357 | severity = Notice; |
| 3358 | } |
| 3359 | Ns_Log(severity, "nsproxy process %d killed with signal %d (%s)", |
| 3360 | workerPtr->pid, |
| 3361 | WTERMSIG(waitStatus)((waitStatus) & 0x7f), strsignal(WTERMSIG(waitStatus)((waitStatus) & 0x7f))); |
| 3362 | } |
| 3363 | #endif |
| 3364 | } |
| 3365 | |
| 3366 | tmpWorkerPtr = workerPtr->nextPtr; |
| 3367 | if (workerPtr->rfd != NS_INVALID_FD(-1)) { |
| 3368 | ns_closeclose(workerPtr->rfd); |
| 3369 | } |
| 3370 | ns_free(workerPtr); |
| 3371 | workerPtr = tmpWorkerPtr; |
| 3372 | |
| 3373 | } else { |
| 3374 | |
| 3375 | /* |
| 3376 | * Process is still around, try killing it but leave it |
| 3377 | * in the list. Calculate the latest time we'll visit |
| 3378 | * this one again. |
| 3379 | */ |
| 3380 | |
| 3381 | if (Ns_DiffTime(&workerPtr->expire, &timeout, NULL((void*)0)) < 0) { |
| 3382 | Ns_Log(Ns_LogNsProxyDebug, "reaper shortens timeout to " |
| 3383 | NS_TIME_FMT"%" "l" "d" ".%06ld" " based on expire in pool %s worker %ld kill %d", |
| 3384 | (int64_t)timeout.sec, timeout.usec, workerPtr->poolPtr->name, |
| 3385 | (long)workerPtr->pid, workerPtr->signal); |
| 3386 | timeout = workerPtr->expire; |
| 3387 | } |
| 3388 | if (workerPtr->signal != workerPtr->sigsent) { |
| 3389 | Ns_Log(Warning, "[%s]: pid %ld won't die, send signal %d", |
| 3390 | workerPtr->poolPtr->name, (long)workerPtr->pid, |
| 3391 | workerPtr->signal); |
| 3392 | if (kill(workerPtr->pid, workerPtr->signal) != 0 && errno(*__errno_location ()) != ESRCH3) { |
| 3393 | Ns_Log(Error, "kill(%ld, %d) failed: %s", |
| 3394 | (long)workerPtr->pid, workerPtr->signal, strerror(errno(*__errno_location ()))); |
| 3395 | } |
| 3396 | workerPtr->sigsent = workerPtr->signal; |
| 3397 | } |
| 3398 | prevWorkerPtr = workerPtr; |
| 3399 | workerPtr = workerPtr->nextPtr; |
| 3400 | } |
| 3401 | } |
| 3402 | |
| 3403 | /* |
| 3404 | * Here we wait until signaled, or at most the |
| 3405 | * time we need to expire next worker or kill |
| 3406 | * some of them found on the close list. |
| 3407 | */ |
| 3408 | |
| 3409 | if (Ns_DiffTime(&timeout, &now, &diff) > 0) { |
| 3410 | reaperState = Sleeping; |
| 3411 | Ns_CondBroadcast(&pcond); |
| 3412 | if (timeout.sec == TIME_T_MAX9223372036854775807L && timeout.usec == 0) { |
| 3413 | Ns_Log(Ns_LogNsProxyDebug, "reaper waits unlimited for cond"); |
| 3414 | Ns_CondWait(&pcond, &plock); |
| 3415 | } else { |
| 3416 | Ns_Log(Ns_LogNsProxyDebug, "reaper waits for cond with timeout " NS_TIME_FMT"%" "l" "d" ".%06ld", |
| 3417 | (int64_t)timeout.sec, timeout.usec); |
| 3418 | (void) Ns_CondTimedWait(&pcond, &plock, &timeout); |
| 3419 | } |
| 3420 | if (reaperState == Stopping) { |
| 3421 | break; |
| 3422 | } |
| 3423 | reaperState = Running; |
| 3424 | } |
| 3425 | } |
| 3426 | |
| 3427 | reaperState = Stopped; |
| 3428 | Ns_CondSignal(&pcond); |
| 3429 | Ns_MutexUnlock(&plock); |
| 3430 | |
| 3431 | Ns_Log(Notice, "exiting"); |
| 3432 | } |
| 3433 | |
| 3434 | |
| 3435 | /* |
| 3436 | *---------------------------------------------------------------------- |
| 3437 | * |
| 3438 | * FreeProxy -- |
| 3439 | * |
| 3440 | * Disposes a proxy handle. |
| 3441 | * |
| 3442 | * Results: |
| 3443 | * None. |
| 3444 | * |
| 3445 | * Side effects: |
| 3446 | * None. |
| 3447 | * |
| 3448 | *---------------------------------------------------------------------- |
| 3449 | */ |
| 3450 | |
| 3451 | static void |
| 3452 | FreeProxy(Proxy *proxyPtr) |
| 3453 | { |
| 3454 | NS_NONNULL_ASSERT(proxyPtr)((void) (0)); |
| 3455 | |
| 3456 | Tcl_DStringFree(&proxyPtr->in); |
| 3457 | Tcl_DStringFree(&proxyPtr->out); |
| 3458 | ns_free(proxyPtr->id); |
| 3459 | ns_free(proxyPtr); |
| 3460 | } |
| 3461 | |
| 3462 | |
| 3463 | /* |
| 3464 | *---------------------------------------------------------------------- |
| 3465 | * |
| 3466 | * FreePool -- |
| 3467 | * |
| 3468 | * Disposes a pool handle (call only on server exit). |
| 3469 | * |
| 3470 | * Results: |
| 3471 | * None. |
| 3472 | * |
| 3473 | * Side effects: |
| 3474 | * None. |
| 3475 | * |
| 3476 | *---------------------------------------------------------------------- |
| 3477 | */ |
| 3478 | |
| 3479 | static void |
| 3480 | FreePool(Pool *poolPtr) |
| 3481 | { |
| 3482 | NS_NONNULL_ASSERT(poolPtr != NULL)((void) (0)); |
| 3483 | |
| 3484 | if (poolPtr->exec != NULL((void*)0)) { |
| 3485 | ns_free((char *)poolPtr->exec); |
| 3486 | } |
| 3487 | if (poolPtr->init != NULL((void*)0)) { |
| 3488 | ns_free((char *)poolPtr->init); |
| 3489 | } |
| 3490 | if (poolPtr->reinit != NULL((void*)0)) { |
| 3491 | ns_free((char *)poolPtr->reinit); |
| 3492 | } |
| 3493 | if (poolPtr->env) { |
| 3494 | Ns_SetFree(poolPtr->env); |
| 3495 | } |
| 3496 | |
| 3497 | Ns_CondDestroy(&poolPtr->cond); |
| 3498 | Ns_MutexDestroy(&poolPtr->lock); |
| 3499 | |
| 3500 | ns_free((char *)poolPtr); |
| 3501 | } |
| 3502 | |
| 3503 | |
| 3504 | /* |
| 3505 | *---------------------------------------------------------------------- |
| 3506 | * |
| 3507 | * PushProxy -- |
| 3508 | * |
| 3509 | * Return a proxy to the pool. |
| 3510 | * |
| 3511 | * Results: |
| 3512 | * None. |
| 3513 | * |
| 3514 | * Side effects: |
| 3515 | * None. |
| 3516 | * |
| 3517 | *---------------------------------------------------------------------- |
| 3518 | */ |
| 3519 | |
| 3520 | static void |
| 3521 | PushProxy(Proxy *proxyPtr) |
| 3522 | { |
| 3523 | Pool *poolPtr; |
| 3524 | |
| 3525 | NS_NONNULL_ASSERT(proxyPtr != NULL)((void) (0)); |
| 3526 | |
| 3527 | poolPtr = proxyPtr->poolPtr; |
| 3528 | /* |
| 3529 | * Clears the proxy for the next use |
| 3530 | */ |
| 3531 | |
| 3532 | ResetProxy(proxyPtr); |
| 3533 | |
| 3534 | /* |
| 3535 | * Divorce from the per-interpreter tables |
| 3536 | */ |
| 3537 | |
| 3538 | if (proxyPtr->cntPtr != NULL((void*)0)) { |
| 3539 | intptr_t nhave = (intptr_t) Tcl_GetHashValue(proxyPtr->cntPtr)((proxyPtr->cntPtr)->clientData); |
| 3540 | |
| 3541 | nhave--; |
| 3542 | Tcl_SetHashValue(proxyPtr->cntPtr, (ClientData) nhave)((proxyPtr->cntPtr)->clientData = (ClientData) ((ClientData ) nhave)); |
| 3543 | if (proxyPtr->idPtr != NULL((void*)0)) { |
| 3544 | Tcl_DeleteHashEntry(proxyPtr->idPtr); |
| 3545 | proxyPtr->idPtr = NULL((void*)0); |
| 3546 | } |
| 3547 | proxyPtr->cntPtr = NULL((void*)0); |
| 3548 | } |
| 3549 | |
| 3550 | /* |
| 3551 | * Return the proxy to the pool, pruning it if |
| 3552 | * its addition to the pool will break limits. |
| 3553 | */ |
| 3554 | |
| 3555 | Ns_MutexLock(&poolPtr->lock); |
| 3556 | poolPtr->nused--; |
| 3557 | if ((poolPtr->nused + poolPtr->nfree) <= poolPtr->maxworker) { |
| 3558 | proxyPtr->nextPtr = poolPtr->firstPtr; |
| 3559 | poolPtr->firstPtr = proxyPtr; |
| 3560 | if (proxyPtr->workerPtr != NULL((void*)0)) { |
| 3561 | SetExpire(proxyPtr->workerPtr, &proxyPtr->conf.tidle); |
| 3562 | } |
| 3563 | proxyPtr->conf = poolPtr->conf; |
| 3564 | proxyPtr = NULL((void*)0); |
| 3565 | poolPtr->nfree++; |
| 3566 | Ns_CondBroadcast(&poolPtr->cond); |
| 3567 | } |
| 3568 | Ns_MutexUnlock(&poolPtr->lock); |
| 3569 | |
| 3570 | /* |
| 3571 | * Check for an excessive proxy |
| 3572 | */ |
| 3573 | |
| 3574 | if (proxyPtr != NULL((void*)0)) { |
| 3575 | CloseProxy(proxyPtr); |
| 3576 | FreeProxy(proxyPtr); |
| 3577 | } |
| 3578 | } |
| 3579 | |
| 3580 | |
| 3581 | /* |
| 3582 | *---------------------------------------------------------------------- |
| 3583 | * |
| 3584 | * ReleaseProxy -- |
| 3585 | * |
| 3586 | * Release a proxy from the per-interp table. |
| 3587 | * |
| 3588 | * Results: |
| 3589 | * Result of reinit call or TCL_OK if no reinit. |
| 3590 | * |
| 3591 | * Side effects: |
| 3592 | * None. |
| 3593 | * |
| 3594 | *---------------------------------------------------------------------- |
| 3595 | */ |
| 3596 | |
| 3597 | static int |
| 3598 | ReleaseProxy(Tcl_Interp *interp, Proxy *proxyPtr) |
| 3599 | { |
| 3600 | int result = TCL_OK0; |
| 3601 | Tcl_CmdInfo cmdinfo; |
| 3602 | |
| 3603 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 3604 | NS_NONNULL_ASSERT(proxyPtr != NULL)((void) (0)); |
| 3605 | |
| 3606 | if (proxyPtr->state == Idle) { |
| 3607 | Tcl_DString ds; |
| 3608 | int reinit; |
| 3609 | |
| 3610 | Tcl_DStringInit(&ds); |
| 3611 | Ns_MutexLock(&proxyPtr->poolPtr->lock); |
| 3612 | reinit = proxyPtr->poolPtr->reinit != NULL((void*)0); |
| 3613 | if (reinit != 0) { |
| 3614 | Tcl_DStringAppend(&ds, proxyPtr->poolPtr->reinit, -1); |
| 3615 | } |
| 3616 | Ns_MutexUnlock(&proxyPtr->poolPtr->lock); |
| 3617 | if (reinit != 0) { |
| 3618 | result = Eval(interp, proxyPtr, Tcl_DStringValue(&ds)((&ds)->string), NULL((void*)0)); |
| 3619 | } |
| 3620 | Tcl_DStringFree(&ds); |
| 3621 | |
| 3622 | } else if ( (proxyPtr->state == Busy) && (proxyPtr->workerPtr != NULL((void*)0)) ) { |
| 3623 | proxyPtr->workerPtr->signal = 0; |
| 3624 | Ns_Log(Notice, "releasing busy proxy %s", proxyPtr->id); |
| 3625 | |
| 3626 | /* |
| 3627 | * In case the proxy is busy, make sure to drain the pipe, otherwise |
| 3628 | * the proxy might be hanging in a send operation. Closing our end |
| 3629 | * causes in the worker process an exception and terminates the |
| 3630 | * potentially blocking write operation. |
| 3631 | */ |
| 3632 | ns_closeclose(proxyPtr->workerPtr->rfd); |
| 3633 | proxyPtr->workerPtr->rfd = NS_INVALID_FD(-1); |
| 3634 | } |
| 3635 | if (proxyPtr->cmdToken != NULL((void*)0)) { |
| 3636 | /* |
| 3637 | * Modify command definition inline so it does not |
| 3638 | * attempt to call us recursively when deleted. |
| 3639 | */ |
| 3640 | Tcl_GetCommandInfoFromToken(proxyPtr->cmdToken, &cmdinfo); |
| 3641 | cmdinfo.deleteProc = NULL((void*)0); |
| 3642 | cmdinfo.deleteData = NULL((void*)0); |
| 3643 | Tcl_SetCommandInfoFromToken(proxyPtr->cmdToken, &cmdinfo); |
| 3644 | Tcl_DeleteCommand(interp, proxyPtr->id); |
| 3645 | } |
| 3646 | |
| 3647 | PushProxy(proxyPtr); |
| 3648 | |
| 3649 | return result; |
| 3650 | } |
| 3651 | |
| 3652 | |
| 3653 | /* |
| 3654 | *---------------------------------------------------------------------- |
| 3655 | * |
| 3656 | * RunProxyObjCmd -- |
| 3657 | * |
| 3658 | * Activated when somebody calls proxy command. |
| 3659 | * |
| 3660 | * Results: |
| 3661 | * Result of the script as with Tcl eval. |
| 3662 | * |
| 3663 | * Side effects: |
| 3664 | * None. |
| 3665 | * |
| 3666 | *---------------------------------------------------------------------- |
| 3667 | */ |
| 3668 | |
| 3669 | static int |
| 3670 | RunProxyObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 3671 | { |
| 3672 | char *scriptString; |
| 3673 | int result; |
| 3674 | Ns_Time *timeoutPtr = NULL((void*)0); |
| 3675 | Ns_ObjvSpec args[] = { |
| 3676 | {"script", Ns_ObjvString, &scriptString, NULL((void*)0)}, |
| 3677 | {"?timeout", Ns_ObjvTime, &timeoutPtr, NULL((void*)0)}, |
| 3678 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 3679 | }; |
| 3680 | |
| 3681 | if (Ns_ParseObjv(NULL((void*)0), args, interp, 1, objc, objv) != NS_OK) { |
| 3682 | result = TCL_ERROR1; |
| 3683 | |
| 3684 | } else { |
| 3685 | Proxy *proxyPtr = (Proxy *)clientData; |
| 3686 | |
| 3687 | result = Eval(interp, proxyPtr, scriptString, timeoutPtr); |
| 3688 | } |
| 3689 | return result; |
| 3690 | } |
| 3691 | |
| 3692 | |
| 3693 | /* |
| 3694 | *---------------------------------------------------------------------- |
| 3695 | * |
| 3696 | * DelProxyProc -- |
| 3697 | * |
| 3698 | * Release a proxy from the per-interp table. |
| 3699 | * |
| 3700 | * Results: |
| 3701 | * Result of reinit call or TCL_OK if no reinit. |
| 3702 | * |
| 3703 | * Side effects: |
| 3704 | * None. |
| 3705 | * |
| 3706 | *---------------------------------------------------------------------- |
| 3707 | */ |
| 3708 | |
| 3709 | static void |
| 3710 | DelProxyProc(ClientData clientData) |
| 3711 | { |
| 3712 | Proxy *proxyPtr = (Proxy *)clientData; |
| 3713 | |
| 3714 | /* |
| 3715 | * Prevents the ReleaseProxy to attempt to delete the associated |
| 3716 | * Tcl command, which would call us recursively otherwise. |
| 3717 | */ |
| 3718 | |
| 3719 | proxyPtr->cmdToken = NULL((void*)0); |
| 3720 | ReleaseProxy(proxyPtr->interp, proxyPtr); |
| 3721 | } |
| 3722 | |
| 3723 | |
| 3724 | /* |
| 3725 | *---------------------------------------------------------------------- |
| 3726 | * |
| 3727 | * ReleaseHandles -- |
| 3728 | * |
| 3729 | * Release any remaining handles in the per-interp table. |
| 3730 | * |
| 3731 | * Results: |
| 3732 | * None. |
| 3733 | * |
| 3734 | * Side effects: |
| 3735 | * None. |
| 3736 | * |
| 3737 | *---------------------------------------------------------------------- |
| 3738 | */ |
| 3739 | |
| 3740 | static void |
| 3741 | ReleaseHandles(Tcl_Interp *interp, InterpData *idataPtr) |
| 3742 | { |
| 3743 | Tcl_HashEntry *hPtr; |
| 3744 | Tcl_HashSearch search; |
| 3745 | |
| 3746 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 3747 | NS_NONNULL_ASSERT(idataPtr != NULL)((void) (0)); |
| 3748 | |
| 3749 | hPtr = Tcl_FirstHashEntry(&idataPtr->ids, &search); |
| 3750 | while (hPtr != NULL((void*)0)) { |
| 3751 | Proxy *proxyPtr = (Proxy *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 3752 | |
| 3753 | (void) ReleaseProxy(interp, proxyPtr); |
| 3754 | hPtr = Tcl_NextHashEntry(&search); |
| 3755 | } |
| 3756 | } |
| 3757 | |
| 3758 | |
| 3759 | /* |
| 3760 | *---------------------------------------------------------------------- |
| 3761 | * |
| 3762 | * DeleteData -- |
| 3763 | * |
| 3764 | * Tcl assoc data cleanup for ns_proxy. |
| 3765 | * |
| 3766 | * Results: |
| 3767 | * None. |
| 3768 | * |
| 3769 | * Side effects: |
| 3770 | * None. |
| 3771 | * |
| 3772 | *---------------------------------------------------------------------- |
| 3773 | */ |
| 3774 | |
| 3775 | static void |
| 3776 | DeleteData(ClientData clientData, Tcl_Interp *interp) |
| 3777 | { |
| 3778 | InterpData *idataPtr = clientData; |
| 3779 | |
| 3780 | ReleaseHandles(interp, idataPtr); |
| 3781 | Tcl_DeleteHashTable(&idataPtr->ids); |
| 3782 | Tcl_DeleteHashTable(&idataPtr->cnts); |
| 3783 | ns_free(idataPtr); |
| 3784 | } |
| 3785 | |
| 3786 | |
| 3787 | /* |
| 3788 | *---------------------------------------------------------------------- |
| 3789 | * |
| 3790 | * ReapProxies -- |
| 3791 | * |
| 3792 | * Wakes up the reaper thread and waits until it does |
| 3793 | * its job and goes sleeping again. |
| 3794 | * |
| 3795 | * Results: |
| 3796 | * None. |
| 3797 | * |
| 3798 | * Side effects: |
| 3799 | * Will start the reaper thread if not already running. |
| 3800 | * |
| 3801 | *---------------------------------------------------------------------- |
| 3802 | */ |
| 3803 | |
| 3804 | static void |
| 3805 | ReapProxies(void) |
| 3806 | { |
| 3807 | Ns_MutexLock(&plock); |
| 3808 | if (reaperState == Stopped) { |
| 3809 | reaperState = Starting; |
| 3810 | Ns_ThreadCreate(ReaperThread, NULL((void*)0), 0, NULL((void*)0)); |
| 3811 | } else { |
| 3812 | reaperState = Awaken; |
| 3813 | Ns_CondSignal(&pcond); |
| 3814 | } |
| 3815 | while (reaperState != Sleeping) { |
| 3816 | Ns_CondWait(&pcond, &plock); |
| 3817 | } |
| 3818 | Ns_MutexUnlock(&plock); |
| 3819 | } |
| 3820 | |
| 3821 | |
| 3822 | /* |
| 3823 | *---------------------------------------------------------------------- |
| 3824 | * |
| 3825 | * GetTimeDiff -- |
| 3826 | * |
| 3827 | * Returns time difference in milliseconds between current time |
| 3828 | * and time given in passed structure. If the current time is |
| 3829 | * later than the passed time, the result is negative. |
| 3830 | * |
| 3831 | * Results: |
| 3832 | * Number of milliseconds (may be negative!) |
| 3833 | * |
| 3834 | * Side effects: |
| 3835 | * None. |
| 3836 | * |
| 3837 | *---------------------------------------------------------------------- |
| 3838 | */ |
| 3839 | |
| 3840 | static long |
| 3841 | GetTimeDiff(const Ns_Time *timePtr) |
| 3842 | { |
| 3843 | Ns_Time now, diff; |
| 3844 | |
| 3845 | NS_NONNULL_ASSERT(timePtr != NULL)((void) (0)); |
| 3846 | |
| 3847 | Ns_GetTime(&now); |
| 3848 | Ns_DiffTime(timePtr, &now, &diff); |
| 3849 | return (long)Ns_TimeToMilliseconds(&diff); |
| 3850 | } |
| 3851 | |
| 3852 | /* |
| 3853 | *---------------------------------------------------------------------- |
| 3854 | * |
| 3855 | * ProxyError -- |
| 3856 | * |
| 3857 | * Formats an extended error message. |
| 3858 | * |
| 3859 | * Results: |
| 3860 | * None. |
| 3861 | * |
| 3862 | * Side effects: |
| 3863 | * Will set the errorCode global variable. |
| 3864 | * |
| 3865 | *---------------------------------------------------------------------- |
| 3866 | */ |
| 3867 | |
| 3868 | static void |
| 3869 | ProxyError(Tcl_Interp *interp, Err err) |
| 3870 | { |
| 3871 | const char *sysmsg = NULL((void*)0); |
| 3872 | |
| 3873 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 3874 | |
| 3875 | Tcl_SetErrorCode(interp, "NSPROXY", errCode[err], errMsg[err], sysmsg, (char *)0L); |
| 3876 | } |
| 3877 | |
| 3878 | /* |
| 3879 | * Local Variables: |
| 3880 | * mode: c |
| 3881 | * c-basic-offset: 4 |
| 3882 | * fill-column: 78 |
| 3883 | * indent-tabs-mode: nil |
| 3884 | * End: |
| 3885 | */ |