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30a4f2a8 | 1 | /* |
b510f3a1 | 2 | * DEBUG: section 01 Startup and Main Loop |
30a4f2a8 | 3 | * AUTHOR: Harvest Derived |
4 | * | |
2b6662ba | 5 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 6 | * ---------------------------------------------------------- |
30a4f2a8 | 7 | * |
2b6662ba | 8 | * Squid is the result of efforts by numerous individuals from |
9 | * the Internet community; see the CONTRIBUTORS file for full | |
10 | * details. Many organizations have provided support for Squid's | |
11 | * development; see the SPONSORS file for full details. Squid is | |
12 | * Copyrighted (C) 2001 by the Regents of the University of | |
13 | * California; see the COPYRIGHT file for full details. Squid | |
14 | * incorporates software developed and/or copyrighted by other | |
15 | * sources; see the CREDITS file for full details. | |
30a4f2a8 | 16 | * |
17 | * This program is free software; you can redistribute it and/or modify | |
18 | * it under the terms of the GNU General Public License as published by | |
19 | * the Free Software Foundation; either version 2 of the License, or | |
20 | * (at your option) any later version. | |
26ac0430 | 21 | * |
30a4f2a8 | 22 | * This program is distributed in the hope that it will be useful, |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26ac0430 | 26 | * |
30a4f2a8 | 27 | * You should have received a copy of the GNU General Public License |
28 | * along with this program; if not, write to the Free Software | |
cbdec147 | 29 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 30 | * |
30a4f2a8 | 31 | */ |
44a47c6e | 32 | |
582c2af2 | 33 | #include "squid.h" |
450e0c10 | 34 | #include "AccessLogEntry.h" |
582c2af2 FC |
35 | #include "acl/Acl.h" |
36 | #include "acl/Asn.h" | |
89736861 | 37 | #include "AuthReg.h" |
6d57128b | 38 | #include "base/RunnersRegistry.h" |
e0d28505 | 39 | #include "base/Subscription.h" |
3d93a84d | 40 | #include "base/TextException.h" |
8a01b99e | 41 | #include "cache_cf.h" |
21c22f04 | 42 | #include "carp.h" |
95e6d864 | 43 | #include "client_db.h" |
93da1f99 | 44 | #include "client_side.h" |
d841c88d | 45 | #include "comm.h" |
62ee09ca | 46 | #include "ConfigParser.h" |
96c2bb61 | 47 | #include "CpuAffinity.h" |
438b04d4 | 48 | #include "disk.h" |
582c2af2 | 49 | #include "DiskIO/DiskIOModule.h" |
aa839030 | 50 | #include "errorpage.h" |
a553a5a3 | 51 | #include "event.h" |
52 | #include "EventLoop.h" | |
62ee09ca | 53 | #include "ExternalACL.h" |
c4ad1349 | 54 | #include "fd.h" |
31971e6a | 55 | #include "format/Token.h" |
582c2af2 | 56 | #include "forward.h" |
1b76e6c1 | 57 | #include "fs/Module.h" |
95e6d864 | 58 | #include "fqdncache.h" |
af69c635 | 59 | #include "globals.h" |
582c2af2 | 60 | #include "htcp.h" |
ec6f82c1 | 61 | #include "HttpHeader.h" |
582c2af2 FC |
62 | #include "HttpReply.h" |
63 | #include "icmp/IcmpSquid.h" | |
64 | #include "icmp/net_db.h" | |
e6ccf245 | 65 | #include "ICP.h" |
4daaf3cb | 66 | #include "ident/Ident.h" |
afabcc13 | 67 | #include "ipcache.h" |
10cefb7b | 68 | #include "ipc/Coordinator.h" |
582c2af2 | 69 | #include "ipc/Kids.h" |
10cefb7b | 70 | #include "ipc/Strand.h" |
055421ee | 71 | #include "ip/tools.h" |
582c2af2 FC |
72 | #include "Mem.h" |
73 | #include "MemPool.h" | |
b65ce00c | 74 | #include "mime.h" |
f0ba2534 | 75 | #include "neighbors.h" |
582c2af2 FC |
76 | #include "pconn.h" |
77 | #include "PeerSelectState.h" | |
f795b373 | 78 | #include "peer_sourcehash.h" |
37236ba1 | 79 | #include "peer_userhash.h" |
582c2af2 | 80 | #include "profiler/Profiler.h" |
c548327a | 81 | #include "redirect.h" |
c6f15d40 | 82 | #include "refresh.h" |
bc94e5ca | 83 | #include "send-announce.h" |
10818c0a | 84 | #include "store_log.h" |
4e540555 | 85 | #include "tools.h" |
582c2af2 | 86 | #include "SquidDns.h" |
985c86bc | 87 | #include "SquidTime.h" |
6ea5959e | 88 | #include "stat.h" |
e4f1fdae | 89 | #include "StatCounters.h" |
582c2af2 FC |
90 | #include "StoreFileSystem.h" |
91 | #include "Store.h" | |
c8f4eac4 | 92 | #include "SwapDir.h" |
b6b42084 | 93 | #include "unlinkd.h" |
b1bd952a | 94 | #include "URL.h" |
e9028de4 | 95 | #include "wccp.h" |
277bb464 | 96 | #include "wccp2.h" |
cf3edd6f | 97 | #include "WinSvc.h" |
44a47c6e | 98 | |
582c2af2 FC |
99 | #if USE_ADAPTATION |
100 | #include "adaptation/Config.h" | |
101 | #endif | |
102 | #if USE_ECAP | |
103 | #include "adaptation/ecap/Config.h" | |
104 | #endif | |
105 | #if ICAP_CLIENT | |
106 | #include "adaptation/icap/Config.h" | |
107 | #include "adaptation/icap/icap_log.h" | |
108 | #endif | |
109 | #if USE_AUTH | |
110 | #include "auth/Gadgets.h" | |
111 | #endif | |
112 | #if USE_DELAY_POOLS | |
113 | #include "ClientDelayConfig.h" | |
114 | #endif | |
115 | #if USE_DELAY_POOLS | |
116 | #include "DelayPools.h" | |
117 | #endif | |
57afc994 AR |
118 | #if USE_LOADABLE_MODULES |
119 | #include "LoadableModules.h" | |
120 | #endif | |
95d2589c CT |
121 | #if USE_SSL_CRTD |
122 | #include "ssl/helper.h" | |
123 | #include "ssl/certificate_db.h" | |
124 | #endif | |
95d2589c CT |
125 | #if USE_SSL |
126 | #include "ssl/context_storage.h" | |
127 | #endif | |
b958cb0f | 128 | #if ICAP_CLIENT |
26cc52cb | 129 | #include "adaptation/icap/Config.h" |
b958cb0f | 130 | #endif |
6e5db507 | 131 | #if USE_ECAP |
1f3c65fc | 132 | #include "adaptation/ecap/Config.h" |
6e5db507 | 133 | #endif |
b958cb0f AR |
134 | #if USE_ADAPTATION |
135 | #include "adaptation/Config.h" | |
136 | #endif | |
79039294 AR |
137 | #if USE_SQUID_ESI |
138 | #include "esi/Module.h" | |
139 | #endif | |
9c0a2256 FC |
140 | #if SQUID_SNMP |
141 | #include "snmp_core.h" | |
142 | #endif | |
7b5b7ba8 | 143 | |
25f98340 AJ |
144 | #if HAVE_PATHS_H |
145 | #include <paths.h> | |
146 | #endif | |
582c2af2 FC |
147 | #if HAVE_SYS_WAIT_H |
148 | #include <sys/wait.h> | |
149 | #endif | |
21d845b1 FC |
150 | #if HAVE_ERRNO_H |
151 | #include <errno.h> | |
152 | #endif | |
1a774556 | 153 | |
25f98340 | 154 | #if USE_WIN32_SERVICE |
1a774556 | 155 | #include "squid_windows.h" |
156 | #include <process.h> | |
157 | ||
158 | static int opt_install_service = FALSE; | |
159 | static int opt_remove_service = FALSE; | |
160 | static int opt_signal_service = FALSE; | |
161 | static int opt_command_line = FALSE; | |
162 | extern void WIN32_svcstatusupdate(DWORD, DWORD); | |
163 | void WINAPI WIN32_svcHandler(DWORD); | |
164 | ||
165 | #endif | |
166 | ||
1191b93b | 167 | #if !defined(SQUID_BUILD_INFO) |
4fe75473 FC |
168 | #define SQUID_BUILD_INFO "" |
169 | #endif | |
170 | ||
5e6d4736 | 171 | static char *opt_syslog_facility = NULL; |
30a4f2a8 | 172 | static int icpPortNumOverride = 1; /* Want to detect "-u 0" */ |
e13ee7ad | 173 | static int configured_once = 0; |
30a4f2a8 | 174 | #if MALLOC_DBG |
4d64d74a | 175 | static int malloc_debug_level = 0; |
30a4f2a8 | 176 | #endif |
5cd39a10 | 177 | static volatile int do_reconfigure = 0; |
178 | static volatile int do_rotate = 0; | |
2681d383 | 179 | static volatile int do_shutdown = 0; |
ae1feb30 | 180 | static volatile int shutdown_status = 0; |
4d7add01 | 181 | |
a2c48c98 AR |
182 | static int RotateSignal = -1; |
183 | static int ReconfigureSignal = -1; | |
184 | static int ShutdownSignal = -1; | |
185 | ||
5cd39a10 | 186 | static void mainRotate(void); |
d71e4674 AR |
187 | static void mainReconfigureStart(void); |
188 | static void mainReconfigureFinish(void*); | |
f5b8bbc4 | 189 | static void mainInitialize(void); |
f5b8bbc4 | 190 | static void usage(void); |
63be0a78 | 191 | static void mainParseOptions(int argc, char *argv[]); |
f5b8bbc4 | 192 | static void sendSignal(void); |
193 | static void serverConnectionsOpen(void); | |
d71e4674 | 194 | static void serverConnectionsClose(void); |
bbe199dc | 195 | static void watch_child(char **); |
85407535 | 196 | static void setEffectiveUser(void); |
36a97e19 | 197 | #if MEM_GEN_TRACE |
198 | extern void log_trace_done(); | |
199 | extern void log_trace_init(char *); | |
200 | #endif | |
8ff3fa2e | 201 | static void SquidShutdown(void); |
b6a2f15e | 202 | static void mainSetCwd(void); |
efd900cb | 203 | static int checkRunningPid(void); |
85407535 | 204 | |
1191b93b | 205 | #if !_SQUID_MSWIN_ |
e18d7fdc | 206 | static const char *squid_start_script = "squid_start"; |
b293c4d8 | 207 | #endif |
e18d7fdc | 208 | |
9bc73deb | 209 | #if TEST_ACCESS |
210 | #include "test_access.c" | |
211 | #endif | |
212 | ||
63be0a78 | 213 | /** temporary thunk across to the unrefactored store interface */ |
8ff3fa2e | 214 | |
215 | class StoreRootEngine : public AsyncEngine | |
216 | { | |
217 | ||
218 | public: | |
26ac0430 | 219 | int checkEvents(int timeout) { |
8ff3fa2e | 220 | Store::Root().callback(); |
221 | return EVENT_IDLE; | |
222 | }; | |
223 | }; | |
224 | ||
9688b0ae | 225 | class SignalEngine: public AsyncEngine |
a553a5a3 | 226 | { |
227 | ||
228 | public: | |
e053c141 | 229 | SignalEngine(EventLoop &evtLoop) : loop(evtLoop) {} |
9688b0ae | 230 | virtual int checkEvents(int timeout); |
a553a5a3 | 231 | |
232 | private: | |
26ac0430 | 233 | static void StopEventLoop(void * data) { |
9688b0ae | 234 | static_cast<SignalEngine *>(data)->loop.stop(); |
a553a5a3 | 235 | } |
236 | ||
9688b0ae | 237 | void doShutdown(time_t wait); |
238 | ||
a553a5a3 | 239 | EventLoop &loop; |
240 | }; | |
241 | ||
9688b0ae | 242 | int |
243 | SignalEngine::checkEvents(int timeout) | |
a553a5a3 | 244 | { |
9688b0ae | 245 | PROF_start(SignalEngine_checkEvents); |
fc68f6b1 | 246 | |
a553a5a3 | 247 | if (do_reconfigure) { |
d71e4674 | 248 | mainReconfigureStart(); |
a553a5a3 | 249 | do_reconfigure = 0; |
a553a5a3 | 250 | } else if (do_rotate) { |
251 | mainRotate(); | |
252 | do_rotate = 0; | |
253 | } else if (do_shutdown) { | |
9688b0ae | 254 | doShutdown(do_shutdown > 0 ? (int) Config.shutdownLifetime : 0); |
a553a5a3 | 255 | do_shutdown = 0; |
26ac0430 | 256 | } |
a2c48c98 AR |
257 | BroadcastSignalIfAny(DebugSignal); |
258 | BroadcastSignalIfAny(RotateSignal); | |
259 | BroadcastSignalIfAny(ReconfigureSignal); | |
260 | BroadcastSignalIfAny(ShutdownSignal); | |
a553a5a3 | 261 | |
9688b0ae | 262 | PROF_stop(SignalEngine_checkEvents); |
263 | return EVENT_IDLE; | |
264 | } | |
a553a5a3 | 265 | |
9688b0ae | 266 | void |
267 | SignalEngine::doShutdown(time_t wait) | |
268 | { | |
e0236918 FC |
269 | debugs(1, DBG_IMPORTANT, "Preparing for shutdown after " << statCounter.client_http.requests << " requests"); |
270 | debugs(1, DBG_IMPORTANT, "Waiting " << wait << " seconds for active connections to finish"); | |
8ff3fa2e | 271 | |
9688b0ae | 272 | shutting_down = 1; |
273 | ||
274 | #if USE_WIN32_SERVICE | |
275 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, (wait + 1) * 1000); | |
276 | #endif | |
277 | ||
0bcb6908 | 278 | /* run the closure code which can be shared with reconfigure */ |
9688b0ae | 279 | serverConnectionsClose(); |
2f1431ea | 280 | #if USE_AUTH |
0bcb6908 | 281 | /* detach the auth components (only do this on full shutdown) */ |
c6cf8dee | 282 | Auth::Scheme::FreeAll(); |
2f1431ea | 283 | #endif |
9688b0ae | 284 | eventAdd("SquidShutdown", &StopEventLoop, this, (double) (wait + 1), 1, false); |
a553a5a3 | 285 | } |
286 | ||
b8d8561b | 287 | static void |
0673c0ba | 288 | usage(void) |
ccff9601 | 289 | { |
0ee4272b | 290 | fprintf(stderr, |
0e657244 | 291 | #if USE_WIN32_SERVICE |
8eb28163 | 292 | "Usage: %s [-cdhirvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal] [-n name] [-O CommandLine]\n" |
0e657244 | 293 | #else |
8eb28163 | 294 | "Usage: %s [-cdhvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal]\n" |
0e657244 | 295 | #endif |
62e76326 | 296 | " -a port Specify HTTP port number (default: %d).\n" |
297 | " -d level Write debugging to stderr also.\n" | |
298 | " -f file Use given config-file instead of\n" | |
299 | " %s\n" | |
300 | " -h Print help message.\n" | |
0e657244 | 301 | #if USE_WIN32_SERVICE |
302 | " -i Installs as a Windows Service (see -n option).\n" | |
303 | #endif | |
62e76326 | 304 | " -k reconfigure|rotate|shutdown|interrupt|kill|debug|check|parse\n" |
305 | " Parse configuration file, then send signal to \n" | |
306 | " running copy (except -k parse) and exit.\n" | |
0e657244 | 307 | #if USE_WIN32_SERVICE |
308 | " -n name Specify Windows Service name to use for service operations\n" | |
309 | " default is: " _WIN_SQUID_DEFAULT_SERVICE_NAME ".\n" | |
310 | " -r Removes a Windows Service (see -n option).\n" | |
311 | #endif | |
5e6d4736 | 312 | " -s | -l facility\n" |
313 | " Enable logging to syslog.\n" | |
62e76326 | 314 | " -u port Specify ICP port number (default: %d), disable with 0.\n" |
315 | " -v Print version.\n" | |
316 | " -z Create swap directories\n" | |
317 | " -C Do not catch fatal signals.\n" | |
8eb28163 | 318 | " -D OBSOLETE. Scheduled for removal.\n" |
62e76326 | 319 | " -F Don't serve any requests until store is rebuilt.\n" |
320 | " -N No daemon mode.\n" | |
0e657244 | 321 | #if USE_WIN32_SERVICE |
322 | " -O options\n" | |
323 | " Set Windows Service Command line options in Registry.\n" | |
324 | #endif | |
62e76326 | 325 | " -R Do not set REUSEADDR on port.\n" |
326 | " -S Double-check swap during rebuild.\n" | |
62e76326 | 327 | " -X Force full debugging.\n" |
328 | " -Y Only return UDP_HIT or UDP_MISS_NOFETCH during fast reload.\n", | |
7dbca7a4 | 329 | APP_SHORTNAME, CACHE_HTTP_PORT, DefaultConfigFile, CACHE_ICP_PORT); |
77ffc99f | 330 | exit(1); |
ccff9601 | 331 | } |
332 | ||
63be0a78 | 333 | /** |
334 | * Parse the parameters received via command line interface. | |
335 | * | |
d85b8894 AJ |
336 | \param argc Number of options received on command line |
337 | \param argv List of parameters received on command line | |
63be0a78 | 338 | */ |
b8d8561b | 339 | static void |
340 | mainParseOptions(int argc, char *argv[]) | |
090089c4 | 341 | { |
090089c4 | 342 | extern char *optarg; |
4d64d74a | 343 | int c; |
090089c4 | 344 | |
0e657244 | 345 | #if USE_WIN32_SERVICE |
5e6d4736 | 346 | while ((c = getopt(argc, argv, "CDFNO:RSVYXa:d:f:hik:m::n:rsl:u:vz?")) != -1) |
0e657244 | 347 | #else |
05f1c52c | 348 | while ((c = getopt(argc, argv, "CDFNRSYXa:d:f:hk:m::sl:u:vz?")) != -1) |
0e657244 | 349 | #endif |
9b7292ce | 350 | { |
351 | ||
26ac0430 | 352 | switch (c) { |
62e76326 | 353 | |
354 | case 'C': | |
63be0a78 | 355 | /** \par C |
356 | * Unset/disabel global option for catchign signals. opt_catch_signals */ | |
62e76326 | 357 | opt_catch_signals = 0; |
358 | break; | |
359 | ||
360 | case 'D': | |
63be0a78 | 361 | /** \par D |
8eb28163 AJ |
362 | * OBSOLETE: WAS: override to prevent optional startup DNS tests. */ |
363 | debugs(1,DBG_CRITICAL, "WARNING: -D command-line option is obsolete."); | |
62e76326 | 364 | break; |
365 | ||
366 | case 'F': | |
63be0a78 | 367 | /** \par F |
368 | * Set global option for foreground rebuild. opt_foreground_rebuild */ | |
62e76326 | 369 | opt_foreground_rebuild = 1; |
370 | break; | |
371 | ||
372 | case 'N': | |
63be0a78 | 373 | /** \par N |
374 | * Set global option for 'no_daemon' mode. opt_no_daemon */ | |
62e76326 | 375 | opt_no_daemon = 1; |
376 | break; | |
63be0a78 | 377 | |
0e657244 | 378 | #if USE_WIN32_SERVICE |
379 | ||
380 | case 'O': | |
63be0a78 | 381 | /** \par O |
382 | * Set global option. opt_command_lin and WIN32_Command_Line */ | |
0e657244 | 383 | opt_command_line = 1; |
384 | WIN32_Command_Line = xstrdup(optarg); | |
385 | break; | |
386 | #endif | |
62e76326 | 387 | |
388 | case 'R': | |
63be0a78 | 389 | /** \par R |
390 | * Unset/disable global option opt_reuseaddr */ | |
62e76326 | 391 | opt_reuseaddr = 0; |
392 | break; | |
393 | ||
394 | case 'S': | |
63be0a78 | 395 | /** \par S |
396 | * Set global option opt_store_doublecheck */ | |
62e76326 | 397 | opt_store_doublecheck = 1; |
398 | break; | |
399 | ||
62e76326 | 400 | case 'X': |
63be0a78 | 401 | /** \par X |
402 | * Force full debugging */ | |
62493678 AJ |
403 | Debug::parseOptions("rotate=0 ALL,9"); |
404 | Debug::override_X = 1; | |
62e76326 | 405 | sigusr2_handle(SIGUSR2); |
62e76326 | 406 | break; |
407 | ||
408 | case 'Y': | |
63be0a78 | 409 | /** \par Y |
410 | * Set global option opt_reload_hit_only */ | |
62e76326 | 411 | opt_reload_hit_only = 1; |
62e76326 | 412 | break; |
413 | ||
0e657244 | 414 | #if USE_WIN32_SERVICE |
415 | ||
416 | case 'i': | |
63be0a78 | 417 | /** \par i |
418 | * Set global option opt_install_service (to TRUE) */ | |
0e657244 | 419 | opt_install_service = TRUE; |
0e657244 | 420 | break; |
0e657244 | 421 | #endif |
422 | ||
62e76326 | 423 | case 'a': |
63be0a78 | 424 | /** \par a |
425 | * Add optional HTTP port as given following the option */ | |
62e76326 | 426 | add_http_port(optarg); |
62e76326 | 427 | break; |
428 | ||
429 | case 'd': | |
63be0a78 | 430 | /** \par d |
62493678 AJ |
431 | * Set global option Debug::log_stderr to the number given follwoign the option */ |
432 | Debug::log_stderr = atoi(optarg); | |
62e76326 | 433 | break; |
434 | ||
435 | case 'f': | |
63be0a78 | 436 | /** \par f |
437 | * Load the file given instead of the default squid.conf. */ | |
62e76326 | 438 | xfree(ConfigFile); |
62e76326 | 439 | ConfigFile = xstrdup(optarg); |
62e76326 | 440 | break; |
441 | ||
442 | case 'k': | |
63be0a78 | 443 | /** \par k |
444 | * Run the administrative action given following the option */ | |
fc68f6b1 | 445 | |
63be0a78 | 446 | /** \li When its an unknown option display the usage help. */ |
62e76326 | 447 | if ((int) strlen(optarg) < 1) |
448 | usage(); | |
449 | ||
450 | if (!strncmp(optarg, "reconfigure", strlen(optarg))) | |
63be0a78 | 451 | /** \li On reconfigure send SIGHUP. */ |
62e76326 | 452 | opt_send_signal = SIGHUP; |
453 | else if (!strncmp(optarg, "rotate", strlen(optarg))) | |
63be0a78 | 454 | /** \li On rotate send SIGQUIT or SIGUSR1. */ |
605f2c3e | 455 | #if defined(_SQUID_LINUX_THREADS_) |
62e76326 | 456 | opt_send_signal = SIGQUIT; |
e3175d1f | 457 | #else |
62e76326 | 458 | opt_send_signal = SIGUSR1; |
e3175d1f | 459 | #endif |
62e76326 | 460 | |
461 | else if (!strncmp(optarg, "debug", strlen(optarg))) | |
63be0a78 | 462 | /** \li On debug send SIGTRAP or SIGUSR2. */ |
605f2c3e | 463 | #if defined(_SQUID_LINUX_THREADS_) |
62e76326 | 464 | opt_send_signal = SIGTRAP; |
e3175d1f | 465 | #else |
62e76326 | 466 | opt_send_signal = SIGUSR2; |
62e76326 | 467 | #endif |
468 | ||
469 | else if (!strncmp(optarg, "shutdown", strlen(optarg))) | |
63be0a78 | 470 | /** \li On shutdown send SIGTERM. */ |
62e76326 | 471 | opt_send_signal = SIGTERM; |
472 | else if (!strncmp(optarg, "interrupt", strlen(optarg))) | |
63be0a78 | 473 | /** \li On interrupt send SIGINT. */ |
62e76326 | 474 | opt_send_signal = SIGINT; |
475 | else if (!strncmp(optarg, "kill", strlen(optarg))) | |
63be0a78 | 476 | /** \li On kill send SIGKILL. */ |
62e76326 | 477 | opt_send_signal = SIGKILL; |
ae1feb30 | 478 | |
479 | #ifdef SIGTTIN | |
480 | ||
481 | else if (!strncmp(optarg, "restart", strlen(optarg))) | |
63be0a78 | 482 | /** \li On restart send SIGTTIN. (exit and restart by parent) */ |
483 | opt_send_signal = SIGTTIN; | |
ae1feb30 | 484 | |
485 | #endif | |
486 | ||
62e76326 | 487 | else if (!strncmp(optarg, "check", strlen(optarg))) |
63be0a78 | 488 | /** \li On check send 0 / SIGNULL. */ |
62e76326 | 489 | opt_send_signal = 0; /* SIGNULL */ |
490 | else if (!strncmp(optarg, "parse", strlen(optarg))) | |
63be0a78 | 491 | /** \li On parse set global flag to re-parse the config file only. */ |
492 | opt_parse_cfg_only = 1; | |
62e76326 | 493 | else |
494 | usage(); | |
495 | ||
496 | break; | |
497 | ||
498 | case 'm': | |
63be0a78 | 499 | /** \par m |
500 | * Set global malloc_debug_level to the value given following the option. | |
501 | * if none is given it toggles the xmalloc_trace option on/off */ | |
62e76326 | 502 | if (optarg) { |
30a4f2a8 | 503 | #if MALLOC_DBG |
fc68f6b1 | 504 | malloc_debug_level = atoi(optarg); |
30a4f2a8 | 505 | #else |
fc68f6b1 | 506 | fatal("Need to add -DMALLOC_DBG when compiling to use -mX option"); |
33ab18e8 | 507 | #endif |
62e76326 | 508 | |
509 | } else { | |
33ab18e8 | 510 | #if XMALLOC_TRACE |
62e76326 | 511 | xmalloc_trace = !xmalloc_trace; |
33ab18e8 | 512 | #else |
62e76326 | 513 | fatal("Need to configure --enable-xmalloc-debug-trace to use -m option"); |
30a4f2a8 | 514 | #endif |
62e76326 | 515 | } |
d9e7ee1f | 516 | break; |
d9e7ee1f | 517 | |
0e657244 | 518 | #if USE_WIN32_SERVICE |
519 | ||
520 | case 'n': | |
63be0a78 | 521 | /** \par n |
522 | * Set global option opt_signal_service (to TRUE). | |
523 | * Stores the additional parameter given in global WIN32_Service_name */ | |
0e657244 | 524 | xfree(WIN32_Service_name); |
525 | ||
526 | WIN32_Service_name = xstrdup(optarg); | |
527 | ||
528 | opt_signal_service = TRUE; | |
529 | ||
530 | break; | |
531 | ||
532 | case 'r': | |
63be0a78 | 533 | /** \par r |
534 | * Set global option opt_remove_service (to TRUE) */ | |
0e657244 | 535 | opt_remove_service = TRUE; |
536 | ||
537 | break; | |
538 | ||
539 | #endif | |
540 | ||
5e6d4736 | 541 | case 'l': |
63be0a78 | 542 | /** \par l |
543 | * Stores the syslog facility name in global opt_syslog_facility | |
544 | * then performs actions for -s option. */ | |
5e6d4736 | 545 | opt_syslog_facility = xstrdup(optarg); |
546 | ||
62e76326 | 547 | case 's': |
63be0a78 | 548 | /** \par s |
549 | * Initialize the syslog for output */ | |
c307aec3 | 550 | #if HAVE_SYSLOG |
62e76326 | 551 | |
5e6d4736 | 552 | _db_set_syslog(opt_syslog_facility); |
0e657244 | 553 | |
62e76326 | 554 | break; |
0e657244 | 555 | |
c307aec3 | 556 | #else |
62e76326 | 557 | |
558 | fatal("Logging to syslog not available on this platform"); | |
0e657244 | 559 | |
62e76326 | 560 | /* NOTREACHED */ |
561 | #endif | |
562 | ||
563 | case 'u': | |
63be0a78 | 564 | /** \par u |
565 | * Store the ICP port number given in global option icpPortNumOverride | |
566 | * ensuring its a positive number. */ | |
62e76326 | 567 | icpPortNumOverride = atoi(optarg); |
568 | ||
569 | if (icpPortNumOverride < 0) | |
570 | icpPortNumOverride = 0; | |
571 | ||
572 | break; | |
573 | ||
574 | case 'v': | |
63be0a78 | 575 | /** \par v |
576 | * Display squid version and build information. Then exit. */ | |
4fe75473 FC |
577 | printf("Squid Cache: Version %s\n" ,version_string); |
578 | if (strlen(SQUID_BUILD_INFO)) | |
579 | printf("%s\n",SQUID_BUILD_INFO); | |
580 | printf( "configure options: %s\n", SQUID_CONFIGURE_OPTIONS); | |
62e76326 | 581 | |
1a774556 | 582 | #if USE_WIN32_SERVICE |
583 | ||
584 | printf("Compiled as Windows System Service.\n"); | |
585 | ||
586 | #endif | |
587 | ||
62e76326 | 588 | exit(0); |
589 | ||
590 | /* NOTREACHED */ | |
591 | ||
592 | case 'z': | |
63be0a78 | 593 | /** \par z |
62493678 AJ |
594 | * Set global option Debug::log_stderr and opt_create_swap_dirs */ |
595 | Debug::log_stderr = 1; | |
62e76326 | 596 | opt_create_swap_dirs = 1; |
62e76326 | 597 | break; |
598 | ||
63be0a78 | 599 | case 'h': |
600 | ||
62e76326 | 601 | case '?': |
602 | ||
603 | default: | |
63be0a78 | 604 | /** \par h,?, or unknown |
605 | * \copydoc usage() */ | |
62e76326 | 606 | usage(); |
607 | ||
608 | break; | |
609 | } | |
9b7292ce | 610 | |
090089c4 | 611 | } |
4d64d74a | 612 | } |
090089c4 | 613 | |
7a2f978b | 614 | /* ARGSUSED */ |
b293c4d8 | 615 | void |
9b7292ce | 616 | rotate_logs(int sig) |
617 | { | |
5cd39a10 | 618 | do_rotate = 1; |
a2c48c98 | 619 | RotateSignal = sig; |
1191b93b | 620 | #if !_SQUID_MSWIN_ |
30a4f2a8 | 621 | #if !HAVE_SIGACTION |
62e76326 | 622 | |
30a4f2a8 | 623 | signal(sig, rotate_logs); |
624 | #endif | |
a50bfe93 | 625 | #endif |
30a4f2a8 | 626 | } |
627 | ||
7a2f978b | 628 | /* ARGSUSED */ |
b293c4d8 | 629 | void |
9b7292ce | 630 | reconfigure(int sig) |
631 | { | |
5cd39a10 | 632 | do_reconfigure = 1; |
a2c48c98 | 633 | ReconfigureSignal = sig; |
1191b93b | 634 | #if !_SQUID_MSWIN_ |
30a4f2a8 | 635 | #if !HAVE_SIGACTION |
62e76326 | 636 | |
30a4f2a8 | 637 | signal(sig, reconfigure); |
638 | #endif | |
a50bfe93 | 639 | #endif |
30a4f2a8 | 640 | } |
641 | ||
b8d8561b | 642 | void |
9b7292ce | 643 | shut_down(int sig) |
644 | { | |
2681d383 | 645 | do_shutdown = sig == SIGINT ? -1 : 1; |
a2c48c98 | 646 | ShutdownSignal = sig; |
ae1feb30 | 647 | #ifdef SIGTTIN |
648 | ||
649 | if (SIGTTIN == sig) | |
650 | shutdown_status = 1; | |
651 | ||
652 | #endif | |
ca4b9ee6 DK |
653 | |
654 | const pid_t ppid = getppid(); | |
655 | ||
bd9fe5b4 | 656 | if (!IamMasterProcess() && ppid > 1) { |
ca4b9ee6 DK |
657 | // notify master that we are shutting down |
658 | if (kill(ppid, SIGUSR1) < 0) | |
659 | debugs(1, DBG_IMPORTANT, "Failed to send SIGUSR1 to master process," | |
660 | " pid " << ppid << ": " << xstrerror()); | |
661 | } | |
662 | ||
1191b93b | 663 | #if !_SQUID_MSWIN_ |
a67d2b2e | 664 | #if KILL_PARENT_OPT |
62e76326 | 665 | |
bd9fe5b4 | 666 | if (!IamMasterProcess() && ppid > 1) { |
ca4b9ee6 | 667 | debugs(1, DBG_IMPORTANT, "Killing master process, pid " << ppid); |
62e76326 | 668 | |
ca4b9ee6 DK |
669 | if (kill(ppid, sig) < 0) |
670 | debugs(1, DBG_IMPORTANT, "kill " << ppid << ": " << xstrerror()); | |
88738790 | 671 | } |
62e76326 | 672 | |
0f658b5b | 673 | #endif /* KILL_PARENT_OPT */ |
6e40f263 | 674 | #if SA_RESETHAND == 0 |
675 | signal(SIGTERM, SIG_DFL); | |
62e76326 | 676 | |
6e40f263 | 677 | signal(SIGINT, SIG_DFL); |
62e76326 | 678 | |
a50bfe93 | 679 | #endif |
6e40f263 | 680 | #endif |
30a4f2a8 | 681 | } |
682 | ||
24382924 | 683 | static void |
9b7292ce | 684 | serverConnectionsOpen(void) |
685 | { | |
7de94c8c AR |
686 | if (IamPrimaryProcess()) { |
687 | #if USE_WCCP | |
5667a628 | 688 | wccpConnectionOpen(); |
7de94c8c | 689 | #endif |
45aae82b | 690 | |
7de94c8c AR |
691 | #if USE_WCCPv2 |
692 | ||
5667a628 | 693 | wccp2ConnectionOpen(); |
7de94c8c AR |
694 | #endif |
695 | } | |
095ec2b1 AR |
696 | // start various proxying services if we are responsible for them |
697 | if (IamWorkerProcess()) { | |
5667a628 | 698 | clientOpenListenSockets(); |
65d448bc | 699 | icpOpenPorts(); |
ace287ee | 700 | #if USE_HTCP |
65d448bc | 701 | htcpOpenPorts(); |
ace287ee | 702 | #endif |
a67d2b2e | 703 | #if SQUID_SNMP |
65d448bc | 704 | snmpOpenPorts(); |
320e9f36 | 705 | #endif |
0b0cfcf2 | 706 | |
5667a628 AR |
707 | clientdbInit(); |
708 | icmpEngine.Open(); | |
709 | netdbInit(); | |
710 | asnInit(); | |
711 | ACL::Initialize(); | |
712 | peerSelectInit(); | |
713 | ||
714 | carpInit(); | |
2f1431ea | 715 | #if USE_AUTH |
5667a628 | 716 | peerUserHashInit(); |
2f1431ea | 717 | #endif |
5667a628 | 718 | peerSourceHashInit(); |
7de94c8c | 719 | } |
5f3f8d0e | 720 | } |
721 | ||
d71e4674 | 722 | static void |
9b7292ce | 723 | serverConnectionsClose(void) |
724 | { | |
0a5a8601 | 725 | assert(shutting_down || reconfiguring); |
7de94c8c AR |
726 | |
727 | if (IamPrimaryProcess()) { | |
728 | #if USE_WCCP | |
729 | ||
5667a628 | 730 | wccpConnectionClose(); |
7de94c8c AR |
731 | #endif |
732 | #if USE_WCCPv2 | |
733 | ||
5667a628 | 734 | wccp2ConnectionClose(); |
7de94c8c AR |
735 | #endif |
736 | } | |
095ec2b1 | 737 | if (IamWorkerProcess()) { |
5667a628 AR |
738 | clientHttpConnectionsClose(); |
739 | icpConnectionShutdown(); | |
72549e05 | 740 | #if USE_HTCP |
5667a628 | 741 | htcpSocketShutdown(); |
72549e05 | 742 | #endif |
62e76326 | 743 | |
5667a628 | 744 | icmpEngine.Close(); |
a67d2b2e | 745 | #if SQUID_SNMP |
65d448bc | 746 | snmpClosePorts(); |
320e9f36 | 747 | #endif |
62e76326 | 748 | |
5667a628 | 749 | asnFreeMemory(); |
7de94c8c | 750 | } |
5f3f8d0e | 751 | } |
752 | ||
b8d8561b | 753 | static void |
d71e4674 | 754 | mainReconfigureStart(void) |
9b7292ce | 755 | { |
e0236918 | 756 | debugs(1, DBG_IMPORTANT, "Reconfiguring Squid Cache (version " << version_string << ")..."); |
5cd39a10 | 757 | reconfiguring = 1; |
d71e4674 AR |
758 | |
759 | // Initiate asynchronous closing sequence | |
15df8349 | 760 | serverConnectionsClose(); |
65d448bc | 761 | icpClosePorts(); |
72549e05 | 762 | #if USE_HTCP |
65d448bc | 763 | htcpClosePorts(); |
72549e05 | 764 | #endif |
74addf6c | 765 | dnsShutdown(); |
95d2589c CT |
766 | #if USE_SSL_CRTD |
767 | Ssl::Helper::GetInstance()->Shutdown(); | |
768 | #endif | |
769 | #if USE_SSL | |
770 | Ssl::TheGlobalContextStorage.reconfigureStart(); | |
771 | #endif | |
74addf6c | 772 | redirectShutdown(); |
2f1431ea | 773 | #if USE_AUTH |
0bcb6908 | 774 | authenticateReset(); |
2f1431ea | 775 | #endif |
d9572179 | 776 | externalAclShutdown(); |
2db68ce5 | 777 | storeDirCloseSwapLogs(); |
2e923080 | 778 | storeLogClose(); |
779 | accessLogClose(); | |
3ff65596 AR |
780 | #if ICAP_CLIENT |
781 | icapLogClose(); | |
782 | #endif | |
d71e4674 AR |
783 | |
784 | eventAdd("mainReconfigureFinish", &mainReconfigureFinish, NULL, 0, 1, | |
26ac0430 | 785 | false); |
d71e4674 AR |
786 | } |
787 | ||
788 | static void | |
26ac0430 AJ |
789 | mainReconfigureFinish(void *) |
790 | { | |
d71e4674 AR |
791 | debugs(1, 3, "finishing reconfiguring"); |
792 | ||
c68e9c6b | 793 | errorClean(); |
3aa4adbc | 794 | enter_suid(); /* root to read config file */ |
936b23cd AJ |
795 | |
796 | // we may have disabled the need for PURGE | |
e1381638 | 797 | if (Config2.onoff.enable_purge) |
936b23cd AJ |
798 | Config2.onoff.enable_purge = 2; |
799 | ||
18631119 | 800 | // parse the config returns a count of errors encountered. |
13aeac35 | 801 | const int oldWorkers = Config.workers; |
18631119 AJ |
802 | if ( parseConfigFile(ConfigFile) != 0) { |
803 | // for now any errors are a fatal condition... | |
804 | self_destruct(); | |
805 | } | |
13aeac35 AR |
806 | if (oldWorkers != Config.workers) { |
807 | debugs(1, DBG_CRITICAL, "WARNING: Changing 'workers' (from " << | |
5667a628 AR |
808 | oldWorkers << " to " << Config.workers << |
809 | ") is not supported and ignored"); | |
13aeac35 | 810 | Config.workers = oldWorkers; |
a2c48c98 | 811 | } |
936b23cd | 812 | |
96c2bb61 AR |
813 | if (IamPrimaryProcess()) |
814 | CpuAffinityCheck(); | |
815 | CpuAffinityReconfigure(); | |
816 | ||
c642c141 | 817 | setUmask(Config.umask); |
97244680 | 818 | Mem::Report(); |
3aa4adbc | 819 | setEffectiveUser(); |
62493678 | 820 | _db_init(Debug::cache_log, Debug::debugOptions); |
429fdbec | 821 | ipcache_restart(); /* clear stuck entries */ |
822 | fqdncache_restart(); /* sigh, fqdncache too */ | |
0e70aa1e | 823 | parseEtcHosts(); |
53ad48e6 | 824 | errorInitialize(); /* reload error pages */ |
2e923080 | 825 | accessLogInit(); |
76fc7e57 AJ |
826 | |
827 | #if USE_LOADABLE_MODULES | |
828 | LoadableModulesConfigure(Config.loadable_module_names); | |
829 | #endif | |
830 | ||
831 | #if USE_ADAPTATION | |
832 | bool enableAdaptation = false; | |
833 | #if ICAP_CLIENT | |
834 | Adaptation::Icap::TheConfig.finalize(); | |
835 | enableAdaptation = Adaptation::Icap::TheConfig.onoff || enableAdaptation; | |
836 | #endif | |
837 | #if USE_ECAP | |
838 | Adaptation::Ecap::TheConfig.finalize(); // must be after we load modules | |
839 | enableAdaptation = Adaptation::Ecap::TheConfig.onoff || enableAdaptation; | |
840 | #endif | |
841 | Adaptation::Config::Finalize(enableAdaptation); | |
842 | #endif | |
d090e020 | 843 | |
3ff65596 AR |
844 | #if ICAP_CLIENT |
845 | icapLogOpen(); | |
846 | #endif | |
2e923080 | 847 | storeLogOpen(); |
74addf6c | 848 | dnsInit(); |
95d2589c CT |
849 | #if USE_SSL_CRTD |
850 | Ssl::Helper::GetInstance()->Init(); | |
851 | #endif | |
62e76326 | 852 | |
74addf6c | 853 | redirectInit(); |
2f1431ea | 854 | #if USE_AUTH |
5817ee13 | 855 | authenticateInit(&Auth::TheConfig); |
2f1431ea | 856 | #endif |
d9572179 | 857 | externalAclInit(); |
7de94c8c AR |
858 | |
859 | if (IamPrimaryProcess()) { | |
1f38f50a | 860 | #if USE_WCCP |
62e76326 | 861 | |
5667a628 | 862 | wccpInit(); |
1f38f50a | 863 | #endif |
0b0cfcf2 | 864 | #if USE_WCCPv2 |
865 | ||
5667a628 | 866 | wccp2Init(); |
0b0cfcf2 | 867 | #endif |
7de94c8c | 868 | } |
62e76326 | 869 | |
0ffd22bc | 870 | serverConnectionsOpen(); |
9c2e9b50 | 871 | |
3ee2b4f8 | 872 | neighbors_init(); |
9c2e9b50 | 873 | |
2db68ce5 | 874 | storeDirOpenSwapLogs(); |
9c2e9b50 | 875 | |
9c021a38 | 876 | mimeInit(Config.mimeTablePathname); |
9c2e9b50 | 877 | |
c521ad17 DK |
878 | if (unlinkdNeeded()) |
879 | unlinkdInit(); | |
c521ad17 | 880 | |
9a0a18de | 881 | #if USE_DELAY_POOLS |
b4cd430a CT |
882 | Config.ClientDelay.finalize(); |
883 | #endif | |
884 | ||
926375e6 | 885 | if (Config.onoff.announce) { |
886 | if (!eventFind(start_announce, NULL)) | |
887 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
888 | } else { | |
889 | if (eventFind(start_announce, NULL)) | |
890 | eventDelete(start_announce, NULL); | |
891 | } | |
892 | ||
b8890359 | 893 | writePidFile(); /* write PID file */ |
9c2e9b50 | 894 | |
5cd39a10 | 895 | reconfiguring = 0; |
896 | } | |
897 | ||
898 | static void | |
9b7292ce | 899 | mainRotate(void) |
900 | { | |
cc192b50 | 901 | icmpEngine.Close(); |
f64091a7 | 902 | #if USE_DNSHELPER |
e40aa8da | 903 | dnsShutdown(); |
3c573763 | 904 | #endif |
e40aa8da | 905 | redirectShutdown(); |
2f1431ea | 906 | #if USE_AUTH |
0bcb6908 | 907 | authenticateRotate(); |
2f1431ea | 908 | #endif |
d9572179 | 909 | externalAclShutdown(); |
0a6dd8fb | 910 | |
5cd39a10 | 911 | _db_rotate_log(); /* cache.log */ |
912 | storeDirWriteCleanLogs(1); | |
913 | storeLogRotate(); /* store.log */ | |
914 | accessLogRotate(); /* access.log */ | |
3ff65596 AR |
915 | #if ICAP_CLIENT |
916 | icapLogRotate(); /*icap.log*/ | |
917 | #endif | |
cc192b50 | 918 | icmpEngine.Open(); |
f64091a7 | 919 | #if USE_DNSHELPER |
e40aa8da | 920 | dnsInit(); |
3c573763 | 921 | #endif |
e40aa8da | 922 | redirectInit(); |
2f1431ea | 923 | #if USE_AUTH |
5817ee13 | 924 | authenticateInit(&Auth::TheConfig); |
2f1431ea | 925 | #endif |
d9572179 | 926 | externalAclInit(); |
5f3f8d0e | 927 | } |
928 | ||
067bea91 | 929 | static void |
9b7292ce | 930 | setEffectiveUser(void) |
931 | { | |
fc68f6b1 | 932 | keepCapabilities(); |
85407535 | 933 | leave_suid(); /* Run as non privilegied user */ |
1191b93b | 934 | #if _SQUID_OS2_ |
62e76326 | 935 | |
cd377065 | 936 | return; |
937 | #endif | |
62e76326 | 938 | |
85407535 | 939 | if (geteuid() == 0) { |
fa84c01d FC |
940 | debugs(0, DBG_CRITICAL, "Squid is not safe to run as root! If you must"); |
941 | debugs(0, DBG_CRITICAL, "start Squid as root, then you must configure"); | |
942 | debugs(0, DBG_CRITICAL, "it to run as a non-priveledged user with the"); | |
943 | debugs(0, DBG_CRITICAL, "'cache_effective_user' option in the config file."); | |
62e76326 | 944 | fatal("Don't run Squid as root, set 'cache_effective_user'!"); |
85407535 | 945 | } |
946 | } | |
947 | ||
b6a2f15e | 948 | static void |
9b7292ce | 949 | mainSetCwd(void) |
950 | { | |
4a504376 | 951 | char pathbuf[MAXPATHLEN]; |
62e76326 | 952 | |
b6a2f15e | 953 | if (Config.coredump_dir) { |
62e76326 | 954 | if (0 == strcmp("none", Config.coredump_dir)) { |
955 | (void) 0; | |
956 | } else if (chdir(Config.coredump_dir) == 0) { | |
e0236918 | 957 | debugs(0, DBG_IMPORTANT, "Set Current Directory to " << Config.coredump_dir); |
62e76326 | 958 | return; |
959 | } else { | |
fa84c01d | 960 | debugs(50, DBG_CRITICAL, "chdir: " << Config.coredump_dir << ": " << xstrerror()); |
62e76326 | 961 | } |
b6a2f15e | 962 | } |
62e76326 | 963 | |
02e8115e | 964 | /* If we don't have coredump_dir or couldn't cd there, report current dir */ |
4a504376 | 965 | if (getcwd(pathbuf, MAXPATHLEN)) { |
e0236918 | 966 | debugs(0, DBG_IMPORTANT, "Current Directory is " << pathbuf); |
4a504376 | 967 | } else { |
fa84c01d | 968 | debugs(50, DBG_CRITICAL, "WARNING: Can't find current directory, getcwd: " << xstrerror()); |
4a504376 | 969 | } |
b6a2f15e | 970 | } |
971 | ||
b8d8561b | 972 | static void |
9b7292ce | 973 | mainInitialize(void) |
974 | { | |
efd900cb | 975 | /* chroot if configured to run inside chroot */ |
62e76326 | 976 | |
64b0a10d | 977 | if (Config.chroot_dir && (chroot(Config.chroot_dir) != 0 || chdir("/") != 0)) { |
62e76326 | 978 | fatal("failed to chroot"); |
efd900cb | 979 | } |
62e76326 | 980 | |
1758c627 | 981 | if (opt_catch_signals) { |
62e76326 | 982 | squid_signal(SIGSEGV, death, SA_NODEFER | SA_RESETHAND); |
983 | squid_signal(SIGBUS, death, SA_NODEFER | SA_RESETHAND); | |
44f99671 | 984 | } |
62e76326 | 985 | |
30a4f2a8 | 986 | squid_signal(SIGPIPE, SIG_IGN, SA_RESTART); |
987 | squid_signal(SIGCHLD, sig_child, SA_NODEFER | SA_RESTART); | |
44f99671 | 988 | |
85407535 | 989 | setEffectiveUser(); |
62e76326 | 990 | |
30a4f2a8 | 991 | if (icpPortNumOverride != 1) |
f45dd259 | 992 | Config.Port.icp = (unsigned short) icpPortNumOverride; |
30a4f2a8 | 993 | |
62493678 | 994 | _db_init(Debug::cache_log, Debug::debugOptions); |
62e76326 | 995 | |
62493678 | 996 | fd_open(fileno(debug_log), FD_LOG, Debug::cache_log); |
62e76326 | 997 | |
71a17702 | 998 | #if MEM_GEN_TRACE |
62e76326 | 999 | |
71a17702 | 1000 | log_trace_init("/tmp/squid.alloc"); |
62e76326 | 1001 | |
71a17702 | 1002 | #endif |
62e76326 | 1003 | |
fa84c01d | 1004 | debugs(1, DBG_CRITICAL, "Starting Squid Cache version " << version_string << " for " << CONFIG_HOST_TYPE << "..."); |
62e76326 | 1005 | |
be266cb2 | 1006 | #if _SQUID_WINDOWS_ |
b293c4d8 | 1007 | if (WIN32_run_mode == _WIN_SQUID_RUN_MODE_SERVICE) { |
fa84c01d FC |
1008 | debugs(1, DBG_CRITICAL, "Running as " << WIN32_Service_name << " Windows System Service on " << WIN32_OS_string); |
1009 | debugs(1, DBG_CRITICAL, "Service command line is: " << WIN32_Service_Command_Line); | |
b293c4d8 | 1010 | } else |
fa84c01d | 1011 | debugs(1, DBG_CRITICAL, "Running on " << WIN32_OS_string); |
b293c4d8 | 1012 | #endif |
1013 | ||
e0236918 | 1014 | debugs(1, DBG_IMPORTANT, "Process ID " << getpid()); |
095ec2b1 | 1015 | |
e0236918 | 1016 | debugs(1, DBG_IMPORTANT, "Process Roles:" << ProcessRoles()); |
095ec2b1 | 1017 | |
f3f0f563 | 1018 | setSystemLimits(); |
e0236918 | 1019 | debugs(1, DBG_IMPORTANT, "With " << Squid_MaxFD << " file descriptors available"); |
5f3f8d0e | 1020 | |
1191b93b | 1021 | #if _SQUID_MSWIN_ |
6c1962dd | 1022 | |
e0236918 | 1023 | debugs(1, DBG_IMPORTANT, "With " << _getmaxstdio() << " CRT stdio descriptors available"); |
6c1962dd | 1024 | |
1025 | if (WIN32_Socks_initialized) | |
e0236918 | 1026 | debugs(1, DBG_IMPORTANT, "Windows sockets initialized"); |
6c1962dd | 1027 | |
babd1fd5 | 1028 | if (WIN32_OS_version > _WIN_OS_WINNT) { |
26ac0430 | 1029 | WIN32_IpAddrChangeMonitorInit(); |
babd1fd5 | 1030 | } |
1031 | ||
6c1962dd | 1032 | #endif |
1033 | ||
9f75c559 | 1034 | if (!configured_once) |
62e76326 | 1035 | disk_init(); /* disk_init must go before ipcache_init() */ |
1036 | ||
5f3f8d0e | 1037 | ipcache_init(); |
62e76326 | 1038 | |
f88bb09c | 1039 | fqdncache_init(); |
62e76326 | 1040 | |
0e70aa1e | 1041 | parseEtcHosts(); |
62e76326 | 1042 | |
74addf6c | 1043 | dnsInit(); |
62e76326 | 1044 | |
586089cd CT |
1045 | #if USE_SSL_CRTD |
1046 | Ssl::Helper::GetInstance()->Init(); | |
1047 | #endif | |
1048 | ||
74addf6c | 1049 | redirectInit(); |
2f1431ea | 1050 | #if USE_AUTH |
5817ee13 | 1051 | authenticateInit(&Auth::TheConfig); |
2f1431ea | 1052 | #endif |
d9572179 | 1053 | externalAclInit(); |
62e76326 | 1054 | |
2ac76861 | 1055 | httpHeaderInitModule(); /* must go before any header processing (e.g. the one in errorInitialize) */ |
62e76326 | 1056 | |
2246b732 | 1057 | httpReplyInitModule(); /* must go before accepting replies */ |
62e76326 | 1058 | |
9b312a19 | 1059 | errorInitialize(); |
62e76326 | 1060 | |
7a2f978b | 1061 | accessLogInit(); |
62e76326 | 1062 | |
e1381638 | 1063 | #if ICAP_CLIENT |
3ff65596 AR |
1064 | icapLogOpen(); |
1065 | #endif | |
1066 | ||
3898f57f | 1067 | #if USE_IDENT |
4daaf3cb | 1068 | Ident::Init(); |
3898f57f | 1069 | #endif |
4daaf3cb | 1070 | |
59ad6d31 | 1071 | #if SQUID_SNMP |
62e76326 | 1072 | |
5e14bf6d | 1073 | snmpInit(); |
62e76326 | 1074 | |
5e14bf6d | 1075 | #endif |
30a4f2a8 | 1076 | #if MALLOC_DBG |
62e76326 | 1077 | |
5f3f8d0e | 1078 | malloc_debug(0, malloc_debug_level); |
62e76326 | 1079 | |
5f3f8d0e | 1080 | #endif |
1081 | ||
dbe4fd8e | 1082 | if (!configured_once) { |
c521ad17 DK |
1083 | if (unlinkdNeeded()) |
1084 | unlinkdInit(); | |
62e76326 | 1085 | |
1086 | urlInitialize(); | |
62e76326 | 1087 | statInit(); |
1088 | storeInit(); | |
1089 | mainSetCwd(); | |
1090 | /* after this point we want to see the mallinfo() output */ | |
1091 | do_mallinfo = 1; | |
1092 | mimeInit(Config.mimeTablePathname); | |
62e76326 | 1093 | refreshInit(); |
9a0a18de | 1094 | #if USE_DELAY_POOLS |
62e76326 | 1095 | DelayPools::Init(); |
0d7e5d78 | 1096 | #endif |
62e76326 | 1097 | |
b6b6f466 | 1098 | FwdState::initModule(); |
62ee09ca | 1099 | /* register the modules in the cache manager menus */ |
62ee09ca | 1100 | |
a08f1b5a | 1101 | cbdataRegisterWithCacheManager(); |
62ee09ca | 1102 | /* These use separate calls so that the comm loops can eventually |
1103 | * coexist. | |
1104 | */ | |
62ee09ca | 1105 | |
15b3c0d7 | 1106 | eventInit(); |
610ee341 | 1107 | |
26ac0430 | 1108 | // TODO: pconn is a good candidate for new-style registration |
6852be71 | 1109 | // PconnModule::GetInstance()->registerWithCacheManager(); |
26ac0430 | 1110 | // moved to PconnModule::PconnModule() |
5f3f8d0e | 1111 | } |
62e76326 | 1112 | |
7de94c8c | 1113 | if (IamPrimaryProcess()) { |
1f38f50a | 1114 | #if USE_WCCP |
5667a628 | 1115 | wccpInit(); |
62e76326 | 1116 | |
0b0cfcf2 | 1117 | #endif |
1118 | #if USE_WCCPv2 | |
1119 | ||
5667a628 | 1120 | wccp2Init(); |
0b0cfcf2 | 1121 | |
1f38f50a | 1122 | #endif |
7de94c8c | 1123 | } |
62e76326 | 1124 | |
2285407f | 1125 | serverConnectionsOpen(); |
62e76326 | 1126 | |
3ee2b4f8 | 1127 | neighbors_init(); |
fc68f6b1 | 1128 | |
5f5e883f | 1129 | // neighborsRegisterWithCacheManager(); //moved to neighbors_init() |
62e76326 | 1130 | |
efd900cb | 1131 | if (Config.chroot_dir) |
62e76326 | 1132 | no_suid(); |
1133 | ||
dbe4fd8e | 1134 | if (!configured_once) |
62e76326 | 1135 | writePidFile(); /* write PID file */ |
0a5b9b32 | 1136 | |
605f2c3e | 1137 | #if defined(_SQUID_LINUX_THREADS_) |
62e76326 | 1138 | |
e3175d1f | 1139 | squid_signal(SIGQUIT, rotate_logs, SA_RESTART); |
62e76326 | 1140 | |
e3175d1f | 1141 | squid_signal(SIGTRAP, sigusr2_handle, SA_RESTART); |
62e76326 | 1142 | |
e3175d1f | 1143 | #else |
62e76326 | 1144 | |
30a4f2a8 | 1145 | squid_signal(SIGUSR1, rotate_logs, SA_RESTART); |
62e76326 | 1146 | |
30a4f2a8 | 1147 | squid_signal(SIGUSR2, sigusr2_handle, SA_RESTART); |
62e76326 | 1148 | |
9fc0b4b8 | 1149 | #endif |
62e76326 | 1150 | |
30a4f2a8 | 1151 | squid_signal(SIGHUP, reconfigure, SA_RESTART); |
62e76326 | 1152 | |
30a4f2a8 | 1153 | squid_signal(SIGTERM, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1154 | |
30a4f2a8 | 1155 | squid_signal(SIGINT, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1156 | |
ae1feb30 | 1157 | #ifdef SIGTTIN |
1158 | ||
1159 | squid_signal(SIGTTIN, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); | |
1160 | ||
1161 | #endif | |
1162 | ||
58a39dc9 | 1163 | memCheckInit(); |
62e76326 | 1164 | |
57afc994 AR |
1165 | #if USE_LOADABLE_MODULES |
1166 | LoadableModulesConfigure(Config.loadable_module_names); | |
1167 | #endif | |
1168 | ||
8f361c50 AR |
1169 | #if USE_ADAPTATION |
1170 | bool enableAdaptation = false; | |
1171 | ||
1172 | // We can remove this dependency on specific adaptation mechanisms | |
1173 | // if we create a generic Registry of such mechanisms. Should we? | |
b958cb0f | 1174 | #if ICAP_CLIENT |
26cc52cb AR |
1175 | Adaptation::Icap::TheConfig.finalize(); |
1176 | enableAdaptation = Adaptation::Icap::TheConfig.onoff || enableAdaptation; | |
6e5db507 AR |
1177 | #endif |
1178 | #if USE_ECAP | |
574b508c AR |
1179 | Adaptation::Ecap::TheConfig.finalize(); // must be after we load modules |
1180 | enableAdaptation = Adaptation::Ecap::TheConfig.onoff || enableAdaptation; | |
b958cb0f | 1181 | #endif |
8f361c50 AR |
1182 | // must be the last adaptation-related finalize |
1183 | Adaptation::Config::Finalize(enableAdaptation); | |
b958cb0f AR |
1184 | #endif |
1185 | ||
79039294 AR |
1186 | #if USE_SQUID_ESI |
1187 | Esi::Init(); | |
1188 | #endif | |
b958cb0f | 1189 | |
9a0a18de | 1190 | #if USE_DELAY_POOLS |
b4cd430a CT |
1191 | Config.ClientDelay.finalize(); |
1192 | #endif | |
1193 | ||
dbe4fd8e | 1194 | if (!configured_once) { |
c8f4eac4 | 1195 | eventAdd("storeMaintain", Store::Maintain, NULL, 1.0, 1); |
62e76326 | 1196 | |
1197 | if (Config.onoff.announce) | |
1198 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
1199 | ||
1200 | eventAdd("ipcache_purgelru", ipcache_purgelru, NULL, 10.0, 1); | |
1201 | ||
1202 | eventAdd("fqdncache_purgelru", fqdncache_purgelru, NULL, 15.0, 1); | |
1203 | ||
88bfe092 | 1204 | #if USE_XPROF_STATS |
62e76326 | 1205 | |
1206 | eventAdd("cpuProfiling", xprof_event, NULL, 1.0, 1); | |
1207 | ||
88bfe092 | 1208 | #endif |
62e76326 | 1209 | |
1210 | eventAdd("memPoolCleanIdlePools", Mem::CleanIdlePools, NULL, 15.0, 1); | |
4d7add01 | 1211 | } |
62e76326 | 1212 | |
dbe4fd8e | 1213 | configured_once = 1; |
4d64d74a | 1214 | } |
1215 | ||
c842329d | 1216 | /// unsafe main routine -- may throw |
f3f3e961 | 1217 | int SquidMain(int argc, char **argv); |
c842329d | 1218 | /// unsafe main routine wrapper to catch exceptions |
6e5db507 AR |
1219 | static int SquidMainSafe(int argc, char **argv); |
1220 | ||
6c1962dd | 1221 | #if USE_WIN32_SERVICE |
1222 | /* When USE_WIN32_SERVICE is defined, the main function is placed in win32.cc */ | |
1223 | extern "C" void WINAPI | |
e1381638 | 1224 | SquidWinSvcMain(int argc, char **argv) |
18631119 AJ |
1225 | { |
1226 | SquidMainSafe(argc, argv); | |
1227 | } | |
6c1962dd | 1228 | #else |
b8d8561b | 1229 | int |
1230 | main(int argc, char **argv) | |
6e5db507 | 1231 | { |
18631119 | 1232 | return SquidMainSafe(argc, argv); |
6e5db507 | 1233 | } |
18631119 | 1234 | #endif |
6e5db507 AR |
1235 | |
1236 | static int | |
1237 | SquidMainSafe(int argc, char **argv) | |
1238 | { | |
1239 | try { | |
1240 | return SquidMain(argc, argv); | |
26ac0430 | 1241 | } catch (const std::exception &e) { |
51618c6a | 1242 | debugs(1, DBG_CRITICAL, "FATAL: dying from an unhandled exception: " << |
9199139f | 1243 | e.what()); |
26ac0430 AJ |
1244 | throw; |
1245 | } catch (...) { | |
51618c6a | 1246 | debugs(1, DBG_CRITICAL, "FATAL: dying from an unhandled exception."); |
26ac0430 AJ |
1247 | throw; |
1248 | } | |
1249 | return -1; // not reached | |
6e5db507 AR |
1250 | } |
1251 | ||
d4a3e179 AR |
1252 | /// computes name and ID for the current kid process |
1253 | static void | |
1254 | ConfigureCurrentKid(const char *processName) | |
1255 | { | |
5667a628 | 1256 | // kids are marked with parenthesis around their process names |
d4a3e179 AR |
1257 | if (processName && processName[0] == '(') { |
1258 | if (const char *idStart = strrchr(processName, '-')) { | |
1259 | KidIdentifier = atoi(idStart + 1); | |
9de6c973 AR |
1260 | const size_t nameLen = idStart - (processName + 1); |
1261 | assert(nameLen < sizeof(TheKidName)); | |
1262 | xstrncpy(TheKidName, processName + 1, nameLen + 1); | |
095ec2b1 AR |
1263 | if (!strcmp(TheKidName, "squid-coord")) |
1264 | TheProcessKind = pkCoordinator; | |
9199139f | 1265 | else if (!strcmp(TheKidName, "squid")) |
095ec2b1 | 1266 | TheProcessKind = pkWorker; |
9199139f | 1267 | else if (!strcmp(TheKidName, "squid-disk")) |
095ec2b1 AR |
1268 | TheProcessKind = pkDisker; |
1269 | else | |
1270 | TheProcessKind = pkOther; // including coordinator | |
d4a3e179 | 1271 | } |
2664c457 | 1272 | } else { |
9de6c973 | 1273 | xstrncpy(TheKidName, APP_SHORTNAME, sizeof(TheKidName)); |
2664c457 | 1274 | KidIdentifier = 0; |
d4a3e179 | 1275 | } |
d4a3e179 AR |
1276 | } |
1277 | ||
f3f3e961 | 1278 | int |
6e5db507 | 1279 | SquidMain(int argc, char **argv) |
9b7292ce | 1280 | { |
d4a3e179 | 1281 | ConfigureCurrentKid(argv[0]); |
007d775d | 1282 | |
a4ba1105 | 1283 | #if HAVE_SBRK |
9b7292ce | 1284 | sbrk_start = sbrk(0); |
a4ba1105 | 1285 | #endif |
1286 | ||
fb6a61d1 | 1287 | Debug::parseOptions(NULL); |
9b7292ce | 1288 | debug_log = stderr; |
62e76326 | 1289 | |
b9269882 | 1290 | #if defined(SQUID_MAXFD_LIMIT) |
1291 | ||
1292 | if (SQUID_MAXFD_LIMIT < Squid_MaxFD) | |
1293 | Squid_MaxFD = SQUID_MAXFD_LIMIT; | |
1294 | ||
1295 | #endif | |
399e85ea | 1296 | |
cf3edd6f FC |
1297 | /* NOP under non-windows */ |
1298 | int WIN32_init_err=0; | |
a0aa9e74 | 1299 | if ((WIN32_init_err = WIN32_Subsystem_Init(&argc, &argv))) |
1300 | return WIN32_init_err; | |
0e6d05ef | 1301 | |
9b7292ce | 1302 | /* call mallopt() before anything else */ |
0b29fe44 | 1303 | #if HAVE_MALLOPT |
7328e889 | 1304 | #ifdef M_GRAIN |
9b7292ce | 1305 | /* Round up all sizes to a multiple of this */ |
1306 | mallopt(M_GRAIN, 16); | |
62e76326 | 1307 | |
7328e889 | 1308 | #endif |
1309 | #ifdef M_MXFAST | |
9b7292ce | 1310 | /* biggest size that is considered a small block */ |
1311 | mallopt(M_MXFAST, 256); | |
62e76326 | 1312 | |
7328e889 | 1313 | #endif |
1314 | #ifdef M_NBLKS | |
9b7292ce | 1315 | /* allocate this many small blocks at once */ |
1316 | mallopt(M_NLBLKS, 32); | |
62e76326 | 1317 | |
7328e889 | 1318 | #endif |
1319 | #endif /* HAVE_MALLOPT */ | |
1320 | ||
9b7292ce | 1321 | squid_srandom(time(NULL)); |
4d64d74a | 1322 | |
9b7292ce | 1323 | getCurrentTime(); |
62e76326 | 1324 | |
9b7292ce | 1325 | squid_start = current_time; |
62e76326 | 1326 | |
9b7292ce | 1327 | failure_notify = fatal_dump; |
4d64d74a | 1328 | |
6c1962dd | 1329 | #if USE_WIN32_SERVICE |
1330 | ||
9b7292ce | 1331 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1332 | |
1333 | #endif | |
1334 | ||
9b7292ce | 1335 | mainParseOptions(argc, argv); |
4d64d74a | 1336 | |
9aae6be3 | 1337 | if (opt_parse_cfg_only) { |
26ac0430 | 1338 | Debug::parseOptions("ALL,1"); |
9aae6be3 | 1339 | } |
1340 | ||
6c1962dd | 1341 | #if USE_WIN32_SERVICE |
1342 | ||
26ac0430 | 1343 | if (opt_install_service) { |
9b7292ce | 1344 | WIN32_InstallService(); |
a0aa9e74 | 1345 | return 0; |
9b7292ce | 1346 | } |
6c1962dd | 1347 | |
26ac0430 | 1348 | if (opt_remove_service) { |
9b7292ce | 1349 | WIN32_RemoveService(); |
a0aa9e74 | 1350 | return 0; |
9b7292ce | 1351 | } |
6c1962dd | 1352 | |
26ac0430 | 1353 | if (opt_command_line) { |
9b7292ce | 1354 | WIN32_SetServiceCommandLine(); |
a0aa9e74 | 1355 | return 0; |
9b7292ce | 1356 | } |
6c1962dd | 1357 | |
1358 | #endif | |
1359 | ||
9b7292ce | 1360 | /* parse configuration file |
1361 | * note: in "normal" case this used to be called from mainInitialize() */ | |
1362 | { | |
1363 | int parse_err; | |
62e76326 | 1364 | |
9b7292ce | 1365 | if (!ConfigFile) |
1366 | ConfigFile = xstrdup(DefaultConfigFile); | |
62e76326 | 1367 | |
9b7292ce | 1368 | assert(!configured_once); |
62e76326 | 1369 | |
9b7292ce | 1370 | Mem::Init(); |
62e76326 | 1371 | |
9b7292ce | 1372 | storeFsInit(); /* required for config parsing */ |
62e76326 | 1373 | |
7b5b7ba8 | 1374 | /* TODO: call the FS::Clean() in shutdown to do Fs cleanups */ |
af6a12ee | 1375 | Fs::Init(); |
7b5b7ba8 | 1376 | |
b9ae18aa | 1377 | /* May not be needed for parsing, have not audited for such */ |
1378 | DiskIOModule::SetupAllModules(); | |
1379 | ||
59b2d47f | 1380 | /* Shouldn't be needed for config parsing, but have not audited for such */ |
1381 | StoreFileSystem::SetupAllFs(); | |
1382 | ||
c8f4eac4 | 1383 | /* we may want the parsing process to set this up in the future */ |
1384 | Store::Root(new StoreController); | |
89736861 | 1385 | Auth::Init(); /* required for config parsing. NOP if !USE_AUTH */ |
055421ee AJ |
1386 | Ip::ProbeTransport(); // determine IPv4 or IPv6 capabilities before parsing. |
1387 | ||
31971e6a AJ |
1388 | Format::Token::Init(); // XXX: temporary. Use a runners registry of pre-parse runners instead. |
1389 | ||
dd9b1081 | 1390 | parse_err = parseConfigFile(ConfigFile); |
62e76326 | 1391 | |
97244680 | 1392 | Mem::Report(); |
26ac0430 | 1393 | |
18631119 | 1394 | if (opt_parse_cfg_only || parse_err > 0) |
9b7292ce | 1395 | return parse_err; |
9b7292ce | 1396 | } |
c642c141 | 1397 | setUmask(Config.umask); |
9b7292ce | 1398 | if (-1 == opt_send_signal) |
1399 | if (checkRunningPid()) | |
205d7c3b | 1400 | exit(0); |
e13ee7ad | 1401 | |
9bc73deb | 1402 | #if TEST_ACCESS |
62e76326 | 1403 | |
95564b0d | 1404 | comm_init(); |
62e76326 | 1405 | |
9b7292ce | 1406 | mainInitialize(); |
62e76326 | 1407 | |
9b7292ce | 1408 | test_access(); |
62e76326 | 1409 | |
9b7292ce | 1410 | return 0; |
62e76326 | 1411 | |
9bc73deb | 1412 | #endif |
1413 | ||
9b7292ce | 1414 | /* send signal to running copy and exit */ |
26ac0430 | 1415 | if (opt_send_signal != -1) { |
9b7292ce | 1416 | /* chroot if configured to run inside chroot */ |
62e76326 | 1417 | |
a572d8be | 1418 | if (Config.chroot_dir) { |
1419 | if (chroot(Config.chroot_dir)) | |
1420 | fatal("failed to chroot"); | |
1421 | ||
1422 | no_suid(); | |
1423 | } else { | |
1424 | leave_suid(); | |
9b7292ce | 1425 | } |
62e76326 | 1426 | |
9b7292ce | 1427 | sendSignal(); |
1428 | /* NOTREACHED */ | |
1429 | } | |
62e76326 | 1430 | |
6d57128b | 1431 | debugs(1,2, HERE << "Doing post-config initialization\n"); |
520e0073 | 1432 | leave_suid(); |
45e8762c | 1433 | ActivateRegistered(rrFinalizeConfig); |
ea2cdeb6 | 1434 | ActivateRegistered(rrClaimMemoryNeeds); |
6d57128b | 1435 | ActivateRegistered(rrAfterConfig); |
520e0073 | 1436 | enter_suid(); |
9487bae9 | 1437 | |
2ae5c85f AJ |
1438 | if (!opt_no_daemon && Config.workers > 0) |
1439 | watch_child(argv); | |
1440 | ||
26ac0430 | 1441 | if (opt_create_swap_dirs) { |
9b7292ce | 1442 | /* chroot if configured to run inside chroot */ |
0e657244 | 1443 | |
9b7292ce | 1444 | if (Config.chroot_dir && chroot(Config.chroot_dir)) { |
1445 | fatal("failed to chroot"); | |
1446 | } | |
62e76326 | 1447 | |
9b7292ce | 1448 | setEffectiveUser(); |
fa84c01d | 1449 | debugs(0, DBG_CRITICAL, "Creating Swap Directories"); |
c8f4eac4 | 1450 | Store::Root().create(); |
6c1962dd | 1451 | |
9b7292ce | 1452 | return 0; |
9b7292ce | 1453 | } |
62e76326 | 1454 | |
96c2bb61 AR |
1455 | if (IamPrimaryProcess()) |
1456 | CpuAffinityCheck(); | |
1457 | CpuAffinityInit(); | |
1458 | ||
95564b0d | 1459 | setMaxFD(); |
1460 | ||
1461 | /* init comm module */ | |
1462 | comm_init(); | |
62e76326 | 1463 | |
26ac0430 | 1464 | if (opt_no_daemon) { |
9b7292ce | 1465 | /* we have to init fdstat here. */ |
1466 | fd_open(0, FD_LOG, "stdin"); | |
1467 | fd_open(1, FD_LOG, "stdout"); | |
1468 | fd_open(2, FD_LOG, "stderr"); | |
1469 | } | |
62e76326 | 1470 | |
6c1962dd | 1471 | #if USE_WIN32_SERVICE |
1472 | ||
9b7292ce | 1473 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1474 | |
1475 | #endif | |
1476 | ||
9b7292ce | 1477 | mainInitialize(); |
4d64d74a | 1478 | |
6c1962dd | 1479 | #if USE_WIN32_SERVICE |
1480 | ||
9b7292ce | 1481 | WIN32_svcstatusupdate(SERVICE_RUNNING, 0); |
6c1962dd | 1482 | |
1483 | #endif | |
1484 | ||
9b7292ce | 1485 | /* main loop */ |
a553a5a3 | 1486 | EventLoop mainLoop; |
62e76326 | 1487 | |
9688b0ae | 1488 | SignalEngine signalEngine(mainLoop); |
6c1962dd | 1489 | |
9688b0ae | 1490 | mainLoop.registerEngine(&signalEngine); |
62e76326 | 1491 | |
8ff3fa2e | 1492 | /* TODO: stop requiring the singleton here */ |
1493 | mainLoop.registerEngine(EventScheduler::GetInstance()); | |
62e76326 | 1494 | |
8ff3fa2e | 1495 | StoreRootEngine store_engine; |
615f9581 | 1496 | |
8ff3fa2e | 1497 | mainLoop.registerEngine(&store_engine); |
a774fd3f | 1498 | |
8ff3fa2e | 1499 | CommSelectEngine comm_engine; |
1500 | ||
8ff3fa2e | 1501 | mainLoop.registerEngine(&comm_engine); |
1502 | ||
bef81ea5 | 1503 | mainLoop.setPrimaryEngine(&comm_engine); |
1504 | ||
8ff3fa2e | 1505 | /* use the standard time service */ |
1506 | TimeEngine time_engine; | |
1507 | ||
1508 | mainLoop.setTimeService(&time_engine); | |
1509 | ||
7de94c8c | 1510 | if (IamCoordinatorProcess()) |
4299f876 | 1511 | AsyncJob::Start(Ipc::Coordinator::Instance()); |
095ec2b1 | 1512 | else if (UsingSmp() && (IamWorkerProcess() || IamDiskProcess())) |
4299f876 | 1513 | AsyncJob::Start(new Ipc::Strand); |
10cefb7b | 1514 | |
48d54e4d AJ |
1515 | /* at this point we are finished the synchronous startup. */ |
1516 | starting_up = 0; | |
1517 | ||
8ff3fa2e | 1518 | mainLoop.run(); |
1519 | ||
1520 | if (mainLoop.errcount == 10) | |
1521 | fatal_dump("Event loop exited with failure."); | |
1522 | ||
1523 | /* shutdown squid now */ | |
1524 | SquidShutdown(); | |
62e76326 | 1525 | |
9b7292ce | 1526 | /* NOTREACHED */ |
9b7292ce | 1527 | return 0; |
090089c4 | 1528 | } |
7690e8eb | 1529 | |
b8d8561b | 1530 | static void |
0673c0ba | 1531 | sendSignal(void) |
7690e8eb | 1532 | { |
ff8d0ea6 | 1533 | pid_t pid; |
fedac7e5 | 1534 | debug_log = stderr; |
258ac4d7 | 1535 | |
1536 | if (strcmp(Config.pidFilename, "none") == 0) { | |
e0236918 | 1537 | debugs(0, DBG_IMPORTANT, "No pid_filename specified. Trusting you know what you are doing."); |
258ac4d7 | 1538 | } |
1539 | ||
fedac7e5 | 1540 | pid = readPidFile(); |
62e76326 | 1541 | |
fedac7e5 | 1542 | if (pid > 1) { |
6c1962dd | 1543 | #if USE_WIN32_SERVICE |
6c1962dd | 1544 | if (opt_signal_service) { |
1545 | WIN32_sendSignal(opt_send_signal); | |
1546 | exit(0); | |
cf3edd6f | 1547 | } else { |
7dbca7a4 | 1548 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
6c1962dd | 1549 | fprintf(stderr, "signal to Squid Service:\n"); |
1550 | fprintf(stderr, "missing -n command line switch.\n"); | |
1551 | exit(1); | |
1552 | } | |
6c1962dd | 1553 | /* NOTREACHED */ |
6c1962dd | 1554 | #endif |
1555 | ||
62e76326 | 1556 | if (kill(pid, opt_send_signal) && |
1557 | /* ignore permissions if just running check */ | |
1558 | !(opt_send_signal == 0 && errno == EPERM)) { | |
7dbca7a4 | 1559 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
62e76326 | 1560 | fprintf(stderr, "signal %d to process %d: %s\n", |
1561 | opt_send_signal, (int) pid, xstrerror()); | |
1562 | exit(1); | |
1563 | } | |
fedac7e5 | 1564 | } else { |
205d7c3b | 1565 | if (opt_send_signal != SIGTERM) { |
e08d498f | 1566 | fprintf(stderr, "%s: ERROR: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1567 | exit(1); |
1568 | } else { | |
e08d498f | 1569 | fprintf(stderr, "%s: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1570 | exit(0); |
1571 | } | |
7690e8eb | 1572 | } |
62e76326 | 1573 | |
fedac7e5 | 1574 | /* signal successfully sent */ |
1575 | exit(0); | |
1576 | } | |
f95b8144 | 1577 | |
1191b93b | 1578 | #if !_SQUID_MSWIN_ |
e18d7fdc | 1579 | /* |
1580 | * This function is run when Squid is in daemon mode, just | |
1581 | * before the parent forks and starts up the child process. | |
1582 | * It can be used for admin-specific tasks, such as notifying | |
1583 | * someone that Squid is (re)started. | |
1584 | */ | |
1585 | static void | |
1586 | mainStartScript(const char *prog) | |
1587 | { | |
ef364f64 | 1588 | char script[MAXPATHLEN]; |
e18d7fdc | 1589 | char *t; |
1590 | size_t sl = 0; | |
1591 | pid_t cpid; | |
1592 | pid_t rpid; | |
1593 | xstrncpy(script, prog, MAXPATHLEN); | |
62e76326 | 1594 | |
e18d7fdc | 1595 | if ((t = strrchr(script, '/'))) { |
62e76326 | 1596 | *(++t) = '\0'; |
1597 | sl = strlen(script); | |
e18d7fdc | 1598 | } |
62e76326 | 1599 | |
e18d7fdc | 1600 | xstrncpy(&script[sl], squid_start_script, MAXPATHLEN - sl); |
62e76326 | 1601 | |
e18d7fdc | 1602 | if ((cpid = fork()) == 0) { |
62e76326 | 1603 | /* child */ |
f75662c9 | 1604 | execl(script, squid_start_script, (char *)NULL); |
482aa790 | 1605 | _exit(-1); |
e18d7fdc | 1606 | } else { |
62e76326 | 1607 | do { |
1191b93b | 1608 | #if _SQUID_NEXT_ |
62e76326 | 1609 | union wait status; |
007d775d | 1610 | rpid = wait4(cpid, &status, 0, NULL); |
e18d7fdc | 1611 | #else |
62e76326 | 1612 | |
1613 | int status; | |
007d775d | 1614 | rpid = waitpid(cpid, &status, 0); |
e18d7fdc | 1615 | #endif |
62e76326 | 1616 | |
1617 | } while (rpid != cpid); | |
e18d7fdc | 1618 | } |
1619 | } | |
1620 | ||
a50bfe93 | 1621 | #endif /* _SQUID_MSWIN_ */ |
1622 | ||
efd900cb | 1623 | static int |
1624 | checkRunningPid(void) | |
1625 | { | |
b81949b9 | 1626 | // master process must start alone, but its kids processes may co-exist |
7de94c8c | 1627 | if (!IamMasterProcess()) |
b81949b9 AR |
1628 | return 0; |
1629 | ||
efd900cb | 1630 | pid_t pid; |
e0077312 | 1631 | |
1632 | if (!debug_log) | |
1633 | debug_log = stderr; | |
1634 | ||
efd900cb | 1635 | pid = readPidFile(); |
62e76326 | 1636 | |
efd900cb | 1637 | if (pid < 2) |
62e76326 | 1638 | return 0; |
1639 | ||
efd900cb | 1640 | if (kill(pid, 0) < 0) |
62e76326 | 1641 | return 0; |
1642 | ||
fa84c01d | 1643 | debugs(0, DBG_CRITICAL, "Squid is already running! Process ID " << pid); |
62e76326 | 1644 | |
efd900cb | 1645 | return 1; |
1646 | } | |
1647 | ||
f95b8144 | 1648 | static void |
bbe199dc | 1649 | watch_child(char *argv[]) |
f95b8144 | 1650 | { |
1191b93b | 1651 | #if !_SQUID_MSWIN_ |
f95b8144 | 1652 | char *prog; |
1191b93b | 1653 | #if _SQUID_NEXT_ |
62e76326 | 1654 | |
f95b8144 | 1655 | union wait status; |
1656 | #else | |
62e76326 | 1657 | |
f95b8144 | 1658 | int status; |
1659 | #endif | |
62e76326 | 1660 | |
e3a3b845 | 1661 | pid_t pid; |
c99c5397 | 1662 | #ifdef TIOCNOTTY |
1663 | ||
54f742e7 | 1664 | int i; |
c99c5397 | 1665 | #endif |
1666 | ||
742724a4 | 1667 | int nullfd; |
62e76326 | 1668 | |
7de94c8c | 1669 | if (!IamMasterProcess()) |
62e76326 | 1670 | return; |
1671 | ||
7dbca7a4 | 1672 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1673 | |
54f742e7 | 1674 | if ((pid = fork()) < 0) |
62e76326 | 1675 | syslog(LOG_ALERT, "fork failed: %s", xstrerror()); |
54f742e7 | 1676 | else if (pid > 0) |
62e76326 | 1677 | exit(0); |
1678 | ||
54f742e7 | 1679 | if (setsid() < 0) |
62e76326 | 1680 | syslog(LOG_ALERT, "setsid failed: %s", xstrerror()); |
1681 | ||
efd900cb | 1682 | closelog(); |
62e76326 | 1683 | |
54f742e7 | 1684 | #ifdef TIOCNOTTY |
62e76326 | 1685 | |
c4aefe96 | 1686 | if ((i = open("/dev/tty", O_RDWR | O_TEXT)) >= 0) { |
62e76326 | 1687 | ioctl(i, TIOCNOTTY, NULL); |
1688 | close(i); | |
54f742e7 | 1689 | } |
62e76326 | 1690 | |
54f742e7 | 1691 | #endif |
b05490a8 | 1692 | |
7f6ffd15 | 1693 | /* |
1694 | * RBCOLLINS - if cygwin stackdumps when squid is run without | |
1695 | * -N, check the cygwin1.dll version, it needs to be AT LEAST | |
1696 | * 1.1.3. execvp had a bit overflow error in a loop.. | |
1697 | */ | |
742724a4 | 1698 | /* Connect stdio to /dev/null in daemon mode */ |
4da086c4 | 1699 | nullfd = open(_PATH_DEVNULL, O_RDWR | O_TEXT); |
62e76326 | 1700 | |
e4a1325e | 1701 | if (nullfd < 0) |
4da086c4 | 1702 | fatalf(_PATH_DEVNULL " %s\n", xstrerror()); |
e4a1325e | 1703 | |
742724a4 | 1704 | dup2(nullfd, 0); |
62e76326 | 1705 | |
62493678 | 1706 | if (Debug::log_stderr < 0) { |
62e76326 | 1707 | dup2(nullfd, 1); |
1708 | dup2(nullfd, 2); | |
742724a4 | 1709 | } |
62e76326 | 1710 | |
ca4b9ee6 DK |
1711 | // handle shutdown notifications from kids |
1712 | squid_signal(SIGUSR1, sig_shutdown, SA_RESTART); | |
1713 | ||
13aeac35 AR |
1714 | if (Config.workers > 128) { |
1715 | syslog(LOG_ALERT, "Suspiciously high workers value: %d", | |
5667a628 | 1716 | Config.workers); |
007d775d | 1717 | // but we keep going in hope that user knows best |
5667a628 | 1718 | } |
095ec2b1 AR |
1719 | TheKids.init(); |
1720 | ||
a2515f86 | 1721 | syslog(LOG_NOTICE, "Squid Parent: will start %d kids", (int)TheKids.count()); |
007d775d AR |
1722 | |
1723 | // keep [re]starting kids until it is time to quit | |
f95b8144 | 1724 | for (;;) { |
62e76326 | 1725 | mainStartScript(argv[0]); |
1726 | ||
007d775d | 1727 | // start each kid that needs to be [re]started; once |
10cefb7b | 1728 | for (int i = TheKids.count() - 1; i >= 0; --i) { |
007d775d | 1729 | Kid& kid = TheKids.get(i); |
ca4b9ee6 | 1730 | if (!kid.shouldRestart()) |
007d775d AR |
1731 | continue; |
1732 | ||
1733 | if ((pid = fork()) == 0) { | |
1734 | /* child */ | |
1735 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); | |
bc91a636 | 1736 | prog = argv[0]; |
007d775d AR |
1737 | argv[0] = const_cast<char*>(kid.name().termedBuf()); |
1738 | execvp(prog, argv); | |
1739 | syslog(LOG_ALERT, "execvp failed: %s", xstrerror()); | |
1740 | } | |
1741 | ||
1742 | kid.start(pid); | |
095ec2b1 | 1743 | syslog(LOG_NOTICE, "Squid Parent: %s process %d started", |
9199139f | 1744 | kid.name().termedBuf(), pid); |
62e76326 | 1745 | } |
1746 | ||
1747 | /* parent */ | |
7dbca7a4 | 1748 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1749 | |
62e76326 | 1750 | squid_signal(SIGINT, SIG_IGN, SA_RESTART); |
1751 | ||
1191b93b | 1752 | #if _SQUID_NEXT_ |
62e76326 | 1753 | |
1754 | pid = wait3(&status, 0, NULL); | |
1755 | ||
f95b8144 | 1756 | #else |
62e76326 | 1757 | |
1758 | pid = waitpid(-1, &status, 0); | |
1759 | ||
007d775d | 1760 | #endif |
86b91dcd | 1761 | // Loop to collect all stopped kids before we go to sleep below. |
5667a628 | 1762 | do { |
007d775d AR |
1763 | Kid* kid = TheKids.find(pid); |
1764 | if (kid) { | |
1765 | kid->stop(status); | |
1766 | if (kid->calledExit()) { | |
1767 | syslog(LOG_NOTICE, | |
095ec2b1 AR |
1768 | "Squid Parent: %s process %d exited with status %d", |
1769 | kid->name().termedBuf(), | |
5667a628 | 1770 | kid->getPid(), kid->exitStatus()); |
007d775d AR |
1771 | } else if (kid->signaled()) { |
1772 | syslog(LOG_NOTICE, | |
095ec2b1 AR |
1773 | "Squid Parent: %s process %d exited due to signal %d with status %d", |
1774 | kid->name().termedBuf(), | |
5667a628 | 1775 | kid->getPid(), kid->termSignal(), kid->exitStatus()); |
007d775d | 1776 | } else { |
095ec2b1 AR |
1777 | syslog(LOG_NOTICE, "Squid Parent: %s process %d exited", |
1778 | kid->name().termedBuf(), kid->getPid()); | |
007d775d | 1779 | } |
ca4b9ee6 | 1780 | if (kid->hopeless()) { |
1a98557c | 1781 | syslog(LOG_NOTICE, "Squid Parent: %s process %d will not" |
ca4b9ee6 | 1782 | " be restarted due to repeated, frequent failures", |
1a98557c | 1783 | kid->name().termedBuf(), kid->getPid()); |
ca4b9ee6 | 1784 | } |
007d775d AR |
1785 | } else { |
1786 | syslog(LOG_NOTICE, "Squid Parent: unknown child process %d exited", pid); | |
1787 | } | |
1191b93b | 1788 | #if _SQUID_NEXT_ |
007d775d AR |
1789 | } while ((pid = wait3(&status, WNOHANG, NULL)) > 0); |
1790 | #else | |
5667a628 AR |
1791 | } |
1792 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0); | |
62e76326 | 1793 | #endif |
1794 | ||
ca4b9ee6 | 1795 | if (!TheKids.someRunning() && !TheKids.shouldRestartSome()) { |
520e0073 | 1796 | leave_suid(); |
c011f9bc | 1797 | DeactivateRegistered(rrAfterConfig); |
ea2cdeb6 | 1798 | DeactivateRegistered(rrClaimMemoryNeeds); |
45e8762c | 1799 | DeactivateRegistered(rrFinalizeConfig); |
520e0073 | 1800 | enter_suid(); |
c011f9bc | 1801 | |
ca4b9ee6 DK |
1802 | if (TheKids.someSignaled(SIGINT) || TheKids.someSignaled(SIGTERM)) { |
1803 | syslog(LOG_ALERT, "Exiting due to unexpected forced shutdown"); | |
1804 | exit(1); | |
1805 | } | |
62e76326 | 1806 | |
ca4b9ee6 DK |
1807 | if (TheKids.allHopeless()) { |
1808 | syslog(LOG_ALERT, "Exiting due to repeated, frequent failures"); | |
1809 | exit(1); | |
1810 | } | |
62e76326 | 1811 | |
007d775d AR |
1812 | exit(0); |
1813 | } | |
06a0fbd3 | 1814 | |
62e76326 | 1815 | squid_signal(SIGINT, SIG_DFL, SA_RESTART); |
1816 | sleep(3); | |
f95b8144 | 1817 | } |
62e76326 | 1818 | |
bbe199dc | 1819 | /* NOTREACHED */ |
a50bfe93 | 1820 | #endif /* _SQUID_MSWIN_ */ |
a572d8be | 1821 | |
f95b8144 | 1822 | } |
fff6ad65 | 1823 | |
9ec1a1dc | 1824 | static void |
8ff3fa2e | 1825 | SquidShutdown() |
fff6ad65 | 1826 | { |
d71e4674 AR |
1827 | /* XXX: This function is called after the main loop has quit, which |
1828 | * means that no AsyncCalls would be called, including close handlers. | |
1829 | * TODO: We need to close/shut/free everything that needs calls before | |
1830 | * exiting the loop. | |
26ac0430 | 1831 | */ |
d71e4674 | 1832 | |
6c1962dd | 1833 | #if USE_WIN32_SERVICE |
1834 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1835 | #endif | |
1836 | ||
e0236918 | 1837 | debugs(1, DBG_IMPORTANT, "Shutting down..."); |
95a83c22 | 1838 | dnsShutdown(); |
95d2589c CT |
1839 | #if USE_SSL_CRTD |
1840 | Ssl::Helper::GetInstance()->Shutdown(); | |
1841 | #endif | |
95a83c22 | 1842 | redirectShutdown(); |
1843 | externalAclShutdown(); | |
65d448bc | 1844 | icpClosePorts(); |
d723bf6b | 1845 | #if USE_HTCP |
65d448bc | 1846 | htcpClosePorts(); |
d723bf6b | 1847 | #endif |
59ad6d31 | 1848 | #if SQUID_SNMP |
65d448bc | 1849 | snmpClosePorts(); |
320e9f36 | 1850 | #endif |
eb824054 | 1851 | #if USE_WCCP |
62e76326 | 1852 | |
320e9f36 | 1853 | wccpConnectionClose(); |
d723bf6b | 1854 | #endif |
0b0cfcf2 | 1855 | #if USE_WCCPv2 |
1856 | ||
1857 | wccp2ConnectionClose(); | |
1858 | #endif | |
62e76326 | 1859 | |
fff6ad65 | 1860 | releaseServerSockets(); |
d723bf6b | 1861 | commCloseAllSockets(); |
79039294 AR |
1862 | |
1863 | #if USE_SQUID_ESI | |
1864 | Esi::Clean(); | |
1865 | #endif | |
1866 | ||
9a0a18de | 1867 | #if USE_DELAY_POOLS |
b67e2c8c | 1868 | DelayPools::FreePools(); |
515ec4dc | 1869 | #endif |
2f1431ea | 1870 | #if USE_AUTH |
0bcb6908 | 1871 | authenticateReset(); |
2f1431ea | 1872 | #endif |
6c1962dd | 1873 | #if USE_WIN32_SERVICE |
1874 | ||
1875 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1876 | #endif | |
62e76326 | 1877 | |
c8f4eac4 | 1878 | Store::Root().sync(); /* Flush pending object writes/unlinks */ |
4d075ba0 | 1879 | |
b6b42084 | 1880 | unlinkdClose(); /* after sync/flush. NOP if !USE_UNLINKD */ |
fc68f6b1 | 1881 | |
fff6ad65 | 1882 | storeDirWriteCleanLogs(0); |
1883 | PrintRusage(); | |
1884 | dumpMallocStats(); | |
c8f4eac4 | 1885 | Store::Root().sync(); /* Flush log writes */ |
fff6ad65 | 1886 | storeLogClose(); |
1887 | accessLogClose(); | |
c8f4eac4 | 1888 | Store::Root().sync(); /* Flush log close */ |
59b2d47f | 1889 | StoreFileSystem::FreeAllFs(); |
b9ae18aa | 1890 | DiskIOModule::FreeAllModules(); |
c011f9bc | 1891 | DeactivateRegistered(rrAfterConfig); |
ea2cdeb6 | 1892 | DeactivateRegistered(rrClaimMemoryNeeds); |
45e8762c | 1893 | DeactivateRegistered(rrFinalizeConfig); |
afec404b | 1894 | #if LEAK_CHECK_MODE && 0 /* doesn't work at the moment */ |
62e76326 | 1895 | |
fff6ad65 | 1896 | configFreeMemory(); |
1897 | storeFreeMemory(); | |
33ab18e8 | 1898 | /*stmemFreeMemory(); */ |
fff6ad65 | 1899 | netdbFreeMemory(); |
1900 | ipcacheFreeMemory(); | |
1901 | fqdncacheFreeMemory(); | |
1902 | asnFreeMemory(); | |
26a369ba | 1903 | clientdbFreeMemory(); |
7021844c | 1904 | httpHeaderCleanModule(); |
d2db411c | 1905 | statFreeMemory(); |
f1fc2a8d | 1906 | eventFreeMemory(); |
c68e9c6b | 1907 | mimeFreeMemory(); |
1908 | errorClean(); | |
fff6ad65 | 1909 | #endif |
26a369ba | 1910 | #if !XMALLOC_TRACE |
62e76326 | 1911 | |
54f742e7 | 1912 | if (opt_no_daemon) { |
62e76326 | 1913 | file_close(0); |
1914 | file_close(1); | |
1915 | file_close(2); | |
54f742e7 | 1916 | } |
62e76326 | 1917 | |
33ab18e8 | 1918 | #endif |
57fc379e CT |
1919 | // clear StoreController |
1920 | Store::Root(NULL); | |
1921 | ||
fff6ad65 | 1922 | fdDumpOpen(); |
62e76326 | 1923 | |
236d1779 | 1924 | comm_exit(); |
62e76326 | 1925 | |
ddb43c58 | 1926 | memClean(); |
62e76326 | 1927 | |
33ab18e8 | 1928 | #if XMALLOC_TRACE |
62e76326 | 1929 | |
26a369ba | 1930 | xmalloc_find_leaks(); |
62e76326 | 1931 | |
fa84c01d | 1932 | debugs(1, DBG_CRITICAL, "Memory used after shutdown: " << xmalloc_total); |
62e76326 | 1933 | |
33ab18e8 | 1934 | #endif |
36a97e19 | 1935 | #if MEM_GEN_TRACE |
62e76326 | 1936 | |
399e85ea | 1937 | log_trace_done(); |
62e76326 | 1938 | |
36a97e19 | 1939 | #endif |
62e76326 | 1940 | |
7de94c8c | 1941 | if (IamPrimaryProcess()) { |
a2c48c98 AR |
1942 | if (Config.pidFilename && strcmp(Config.pidFilename, "none") != 0) { |
1943 | enter_suid(); | |
1944 | safeunlink(Config.pidFilename, 0); | |
1945 | leave_suid(); | |
1946 | } | |
ab50ee9e | 1947 | } |
62e76326 | 1948 | |
e0236918 | 1949 | debugs(1, DBG_IMPORTANT, "Squid Cache (Version " << version_string << "): Exiting normally."); |
62e76326 | 1950 | |
0cfa98cb | 1951 | /* |
1952 | * DPW 2006-10-23 | |
1953 | * We used to fclose(debug_log) here if it was set, but then | |
1954 | * we forgot to set it to NULL. That caused some coredumps | |
1955 | * because exit() ends up calling a bunch of destructors and | |
1956 | * such. So rather than forcing the debug_log to close, we'll | |
1957 | * leave it open so that those destructors can write some | |
1958 | * debugging if necessary. The file will be closed anyway when | |
1959 | * the process truly exits. | |
1960 | */ | |
62e76326 | 1961 | |
ae1feb30 | 1962 | exit(shutdown_status); |
fff6ad65 | 1963 | } |
bef81ea5 | 1964 |