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--- server/mpm/experimental/itk/Makefile.in 2009-03-17 21:38:54.000000000 +0100 |
3 |
+++ server/mpm/experimental/itk/Makefile.in 2009-03-17 21:39:03.000000000 +0100 |
4 |
@@ -0,0 +1,5 @@ |
5 |
+ |
6 |
+LTLIBRARY_NAME = libitk.la |
7 |
+LTLIBRARY_SOURCES = itk.c |
8 |
+ |
9 |
+include $(top_srcdir)/build/ltlib.mk |
10 |
unchanged: |
11 |
--- server/mpm/experimental/itk/config.m4 2009-03-17 21:38:53.000000000 +0100 |
12 |
+++ server/mpm/experimental/itk/config.m4 2009-03-17 21:39:03.000000000 +0100 |
13 |
@@ -0,0 +1,3 @@ |
14 |
+if test "$MPM_NAME" = "itk" ; then |
15 |
+ APACHE_FAST_OUTPUT(server/mpm/$MPM_NAME/Makefile) |
16 |
+fi |
17 |
diff -u httpd-2.2.11/server/mpm/experimental/itk/itk.c httpd-2.2.11/server/mpm/experimental/itk/itk.c |
18 |
--- server/mpm/experimental/itk/itk.c 2009-04-14 23:29:16.000000000 +0200 |
19 |
+++ server/mpm/experimental/itk/itk.c 2009-04-14 23:31:05.000000000 +0200 |
20 |
@@ -0,0 +1,1740 @@ |
21 |
+/* Licensed to the Apache Software Foundation (ASF) under one or more |
22 |
+ * contributor license agreements. See the NOTICE file distributed with |
23 |
+ * this work for additional information regarding copyright ownership. |
24 |
+ * The ASF licenses this file to You under the Apache License, Version 2.0 |
25 |
+ * (the "License"); you may not use this file except in compliance with |
26 |
+ * the License. You may obtain a copy of the License at |
27 |
+ * |
28 |
+ * http://www.apache.org/licenses/LICENSE-2.0 |
29 |
+ * |
30 |
+ * Unless required by applicable law or agreed to in writing, software |
31 |
+ * distributed under the License is distributed on an "AS IS" BASIS, |
32 |
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
33 |
+ * See the License for the specific language governing permissions and |
34 |
+ * limitations under the License. |
35 |
+ * |
36 |
+ * Portions copyright 2005-2009 Steinar H. Gunderson <sgunderson@bigfoot.com>. |
37 |
+ * Licensed under the same terms as the rest of Apache. |
38 |
+ * |
39 |
+ * Portions copyright 2008 Knut Auvor Grythe <knut@auvor.no>. |
40 |
+ * Licensed under the same terms as the rest of Apache. |
41 |
+ */ |
42 |
+ |
43 |
+#include "apr.h" |
44 |
+#include "apr_portable.h" |
45 |
+#include "apr_strings.h" |
46 |
+#include "apr_thread_proc.h" |
47 |
+#include "apr_signal.h" |
48 |
+ |
49 |
+# define _DBG(text,par...) \ |
50 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL, \ |
51 |
+ "(itkmpm: pid=%d uid=%d, gid=%d) %s(): " text, \ |
52 |
+ getpid(), getuid(), getgid(), __FUNCTION__, par) |
53 |
+ |
54 |
+#define APR_WANT_STDIO |
55 |
+#define APR_WANT_STRFUNC |
56 |
+#include "apr_want.h" |
57 |
+ |
58 |
+#if APR_HAVE_UNISTD_H |
59 |
+#include <unistd.h> |
60 |
+#endif |
61 |
+#if APR_HAVE_SYS_TYPES_H |
62 |
+#include <sys/types.h> |
63 |
+#endif |
64 |
+ |
65 |
+#define CORE_PRIVATE |
66 |
+ |
67 |
+#include "ap_config.h" |
68 |
+#include "httpd.h" |
69 |
+#include "mpm_default.h" |
70 |
+#include "http_main.h" |
71 |
+#include "http_log.h" |
72 |
+#include "http_config.h" |
73 |
+#include "http_core.h" /* for get_remote_host */ |
74 |
+#include "http_connection.h" |
75 |
+#include "http_request.h" /* for ap_hook_post_perdir_config */ |
76 |
+#include "scoreboard.h" |
77 |
+#include "ap_mpm.h" |
78 |
+#include "unixd.h" |
79 |
+#include "mpm_common.h" |
80 |
+#include "ap_listen.h" |
81 |
+#include "ap_mmn.h" |
82 |
+#include "apr_poll.h" |
83 |
+ |
84 |
+#ifdef HAVE_BSTRING_H |
85 |
+#include <bstring.h> /* for IRIX, FD_SET calls bzero() */ |
86 |
+#endif |
87 |
+#ifdef HAVE_TIME_H |
88 |
+#include <time.h> |
89 |
+#endif |
90 |
+#ifdef HAVE_SYS_PROCESSOR_H |
91 |
+#include <sys/processor.h> /* for bindprocessor() */ |
92 |
+#endif |
93 |
+ |
94 |
+#if HAVE_LIBCAP |
95 |
+#include <sys/capability.h> |
96 |
+#endif |
97 |
+ |
98 |
+#include <signal.h> |
99 |
+#include <sys/times.h> |
100 |
+ |
101 |
+/* Limit on the total --- clients will be locked out if more servers than |
102 |
+ * this are needed. It is intended solely to keep the server from crashing |
103 |
+ * when things get out of hand. |
104 |
+ * |
105 |
+ * We keep a hard maximum number of servers, for two reasons --- first off, |
106 |
+ * in case something goes seriously wrong, we want to stop the fork bomb |
107 |
+ * short of actually crashing the machine we're running on by filling some |
108 |
+ * kernel table. Secondly, it keeps the size of the scoreboard file small |
109 |
+ * enough that we can read the whole thing without worrying too much about |
110 |
+ * the overhead. |
111 |
+ */ |
112 |
+#ifndef DEFAULT_SERVER_LIMIT |
113 |
+#define DEFAULT_SERVER_LIMIT 256 |
114 |
+#endif |
115 |
+ |
116 |
+/* Admin can't tune ServerLimit beyond MAX_SERVER_LIMIT. We want |
117 |
+ * some sort of compile-time limit to help catch typos. |
118 |
+ */ |
119 |
+#ifndef MAX_SERVER_LIMIT |
120 |
+#define MAX_SERVER_LIMIT 200000 |
121 |
+#endif |
122 |
+ |
123 |
+#ifndef HARD_THREAD_LIMIT |
124 |
+#define HARD_THREAD_LIMIT 1 |
125 |
+#endif |
126 |
+ |
127 |
+/* config globals */ |
128 |
+ |
129 |
+int ap_threads_per_child=0; /* Worker threads per child */ |
130 |
+static apr_proc_mutex_t *accept_mutex; |
131 |
+static int ap_daemons_to_start=0; |
132 |
+static int ap_daemons_min_free=0; |
133 |
+static int ap_daemons_max_free=0; |
134 |
+static int ap_daemons_limit=0; /* MaxClients */ |
135 |
+static int server_limit = DEFAULT_SERVER_LIMIT; |
136 |
+static int first_server_limit = 0; |
137 |
+static int changed_limit_at_restart; |
138 |
+static int mpm_state = AP_MPMQ_STARTING; |
139 |
+static ap_pod_t *pod; |
140 |
+ |
141 |
+/* |
142 |
+ * The max child slot ever assigned, preserved across restarts. Necessary |
143 |
+ * to deal with MaxClients changes across AP_SIG_GRACEFUL restarts. We |
144 |
+ * use this value to optimize routines that have to scan the entire scoreboard. |
145 |
+ */ |
146 |
+int ap_max_daemons_limit = -1; |
147 |
+server_rec *ap_server_conf; |
148 |
+ |
149 |
+/* one_process --- debugging mode variable; can be set from the command line |
150 |
+ * with the -X flag. If set, this gets you the child_main loop running |
151 |
+ * in the process which originally started up (no detach, no make_child), |
152 |
+ * which is a pretty nice debugging environment. (You'll get a SIGHUP |
153 |
+ * early in standalone_main; just continue through. This is the server |
154 |
+ * trying to kill off any child processes which it might have lying |
155 |
+ * around --- Apache doesn't keep track of their pids, it just sends |
156 |
+ * SIGHUP to the process group, ignoring it in the root process. |
157 |
+ * Continue through and you'll be fine.). |
158 |
+ */ |
159 |
+ |
160 |
+static int one_process = 0; |
161 |
+ |
162 |
+static apr_pool_t *pconf; /* Pool for config stuff */ |
163 |
+static apr_pool_t *pchild; /* Pool for httpd child stuff */ |
164 |
+ |
165 |
+static pid_t ap_my_pid; /* it seems silly to call getpid all the time */ |
166 |
+static pid_t parent_pid; |
167 |
+#ifndef MULTITHREAD |
168 |
+static int my_child_num; |
169 |
+#endif |
170 |
+ap_generation_t volatile ap_my_generation=0; |
171 |
+ |
172 |
+#ifdef TPF |
173 |
+int tpf_child = 0; |
174 |
+char tpf_server_name[INETD_SERVNAME_LENGTH+1]; |
175 |
+#endif /* TPF */ |
176 |
+ |
177 |
+static volatile int die_now = 0; |
178 |
+ |
179 |
+#define UNSET_NICE_VALUE 100 |
180 |
+ |
181 |
+typedef struct |
182 |
+{ |
183 |
+ uid_t uid; |
184 |
+ gid_t gid; |
185 |
+ char *username; |
186 |
+ int nice_value; |
187 |
+} itk_per_dir_conf; |
188 |
+ |
189 |
+typedef struct |
190 |
+{ |
191 |
+ int max_clients_vhost; |
192 |
+} itk_server_conf; |
193 |
+ |
194 |
+module AP_MODULE_DECLARE_DATA mpm_itk_module; |
195 |
+ |
196 |
+#ifdef GPROF |
197 |
+/* |
198 |
+ * change directory for gprof to plop the gmon.out file |
199 |
+ * configure in httpd.conf: |
200 |
+ * GprofDir $RuntimeDir/ -> $ServerRoot/$RuntimeDir/gmon.out |
201 |
+ * GprofDir $RuntimeDir/% -> $ServerRoot/$RuntimeDir/gprof.$pid/gmon.out |
202 |
+ */ |
203 |
+static void chdir_for_gprof(void) |
204 |
+{ |
205 |
+ core_server_config *sconf = |
206 |
+ ap_get_module_config(ap_server_conf->module_config, &core_module); |
207 |
+ char *dir = sconf->gprof_dir; |
208 |
+ const char *use_dir; |
209 |
+ |
210 |
+ if(dir) { |
211 |
+ apr_status_t res; |
212 |
+ char *buf = NULL ; |
213 |
+ int len = strlen(sconf->gprof_dir) - 1; |
214 |
+ if(*(dir + len) == '%') { |
215 |
+ dir[len] = '\0'; |
216 |
+ buf = ap_append_pid(pconf, dir, "gprof."); |
217 |
+ } |
218 |
+ use_dir = ap_server_root_relative(pconf, buf ? buf : dir); |
219 |
+ res = apr_dir_make(use_dir, |
220 |
+ APR_UREAD | APR_UWRITE | APR_UEXECUTE | |
221 |
+ APR_GREAD | APR_GEXECUTE | |
222 |
+ APR_WREAD | APR_WEXECUTE, pconf); |
223 |
+ if(res != APR_SUCCESS && !APR_STATUS_IS_EEXIST(res)) { |
224 |
+ ap_log_error(APLOG_MARK, APLOG_ERR, res, ap_server_conf, |
225 |
+ "gprof: error creating directory %s", dir); |
226 |
+ } |
227 |
+ } |
228 |
+ else { |
229 |
+ use_dir = ap_server_root_relative(pconf, DEFAULT_REL_RUNTIMEDIR); |
230 |
+ } |
231 |
+ |
232 |
+ chdir(use_dir); |
233 |
+} |
234 |
+#else |
235 |
+#define chdir_for_gprof() |
236 |
+#endif |
237 |
+ |
238 |
+/* XXX - I don't know if TPF will ever use this module or not, so leave |
239 |
+ * the ap_check_signals calls in but disable them - manoj */ |
240 |
+#define ap_check_signals() |
241 |
+ |
242 |
+/* a clean exit from a child with proper cleanup */ |
243 |
+static void clean_child_exit(int code) __attribute__ ((noreturn)); |
244 |
+static void clean_child_exit(int code) |
245 |
+{ |
246 |
+ mpm_state = AP_MPMQ_STOPPING; |
247 |
+ |
248 |
+ if (pchild) { |
249 |
+ apr_pool_destroy(pchild); |
250 |
+ } |
251 |
+ ap_mpm_pod_close(pod); |
252 |
+ chdir_for_gprof(); |
253 |
+ exit(code); |
254 |
+} |
255 |
+ |
256 |
+static void accept_mutex_on(void) |
257 |
+{ |
258 |
+ apr_status_t rv = apr_proc_mutex_lock(accept_mutex); |
259 |
+ if (rv != APR_SUCCESS) { |
260 |
+ const char *msg = "couldn't grab the accept mutex"; |
261 |
+ |
262 |
+ if (ap_my_generation != |
263 |
+ ap_scoreboard_image->global->running_generation) { |
264 |
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, rv, NULL, "%s", msg); |
265 |
+ clean_child_exit(0); |
266 |
+ } |
267 |
+ else { |
268 |
+ ap_log_error(APLOG_MARK, APLOG_EMERG, rv, NULL, "%s", msg); |
269 |
+ exit(APEXIT_CHILDFATAL); |
270 |
+ } |
271 |
+ } |
272 |
+} |
273 |
+ |
274 |
+static void accept_mutex_off(void) |
275 |
+{ |
276 |
+ apr_status_t rv = apr_proc_mutex_unlock(accept_mutex); |
277 |
+ if (rv != APR_SUCCESS) { |
278 |
+ const char *msg = "couldn't release the accept mutex"; |
279 |
+ |
280 |
+ if (ap_my_generation != |
281 |
+ ap_scoreboard_image->global->running_generation) { |
282 |
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, rv, NULL, "%s", msg); |
283 |
+ /* don't exit here... we have a connection to |
284 |
+ * process, after which point we'll see that the |
285 |
+ * generation changed and we'll exit cleanly |
286 |
+ */ |
287 |
+ } |
288 |
+ else { |
289 |
+ ap_log_error(APLOG_MARK, APLOG_EMERG, rv, NULL, "%s", msg); |
290 |
+ exit(APEXIT_CHILDFATAL); |
291 |
+ } |
292 |
+ } |
293 |
+} |
294 |
+ |
295 |
+/* On some architectures it's safe to do unserialized accept()s in the single |
296 |
+ * Listen case. But it's never safe to do it in the case where there's |
297 |
+ * multiple Listen statements. Define SINGLE_LISTEN_UNSERIALIZED_ACCEPT |
298 |
+ * when it's safe in the single Listen case. |
299 |
+ */ |
300 |
+#ifdef SINGLE_LISTEN_UNSERIALIZED_ACCEPT |
301 |
+#define SAFE_ACCEPT(stmt) do {if (ap_listeners->next) {stmt;}} while(0) |
302 |
+#else |
303 |
+#define SAFE_ACCEPT(stmt) do {stmt;} while(0) |
304 |
+#endif |
305 |
+ |
306 |
+AP_DECLARE(apr_status_t) ap_mpm_query(int query_code, int *result) |
307 |
+{ |
308 |
+ switch(query_code){ |
309 |
+ case AP_MPMQ_MAX_DAEMON_USED: |
310 |
+ *result = ap_daemons_limit; |
311 |
+ return APR_SUCCESS; |
312 |
+ case AP_MPMQ_IS_THREADED: |
313 |
+ *result = AP_MPMQ_NOT_SUPPORTED; |
314 |
+ return APR_SUCCESS; |
315 |
+ case AP_MPMQ_IS_FORKED: |
316 |
+ *result = AP_MPMQ_DYNAMIC; |
317 |
+ return APR_SUCCESS; |
318 |
+ case AP_MPMQ_HARD_LIMIT_DAEMONS: |
319 |
+ *result = server_limit; |
320 |
+ return APR_SUCCESS; |
321 |
+ case AP_MPMQ_HARD_LIMIT_THREADS: |
322 |
+ *result = HARD_THREAD_LIMIT; |
323 |
+ return APR_SUCCESS; |
324 |
+ case AP_MPMQ_MAX_THREADS: |
325 |
+ *result = 0; |
326 |
+ return APR_SUCCESS; |
327 |
+ case AP_MPMQ_MIN_SPARE_DAEMONS: |
328 |
+ *result = ap_daemons_min_free; |
329 |
+ return APR_SUCCESS; |
330 |
+ case AP_MPMQ_MIN_SPARE_THREADS: |
331 |
+ *result = 0; |
332 |
+ return APR_SUCCESS; |
333 |
+ case AP_MPMQ_MAX_SPARE_DAEMONS: |
334 |
+ *result = ap_daemons_max_free; |
335 |
+ return APR_SUCCESS; |
336 |
+ case AP_MPMQ_MAX_SPARE_THREADS: |
337 |
+ *result = 0; |
338 |
+ return APR_SUCCESS; |
339 |
+ case AP_MPMQ_MAX_REQUESTS_DAEMON: |
340 |
+ *result = ap_max_requests_per_child; |
341 |
+ return APR_SUCCESS; |
342 |
+ case AP_MPMQ_MAX_DAEMONS: |
343 |
+ *result = server_limit; |
344 |
+ return APR_SUCCESS; |
345 |
+ case AP_MPMQ_MPM_STATE: |
346 |
+ *result = mpm_state; |
347 |
+ return APR_SUCCESS; |
348 |
+ } |
349 |
+ return APR_ENOTIMPL; |
350 |
+} |
351 |
+ |
352 |
+#if defined(NEED_WAITPID) |
353 |
+/* |
354 |
+ Systems without a real waitpid sometimes lose a child's exit while waiting |
355 |
+ for another. Search through the scoreboard for missing children. |
356 |
+ */ |
357 |
+int reap_children(int *exitcode, apr_exit_why_e *status) |
358 |
+{ |
359 |
+ int n, pid; |
360 |
+ |
361 |
+ for (n = 0; n < ap_max_daemons_limit; ++n) { |
362 |
+ if (ap_scoreboard_image->servers[n][0].status != SERVER_DEAD && |
363 |
+ kill((pid = ap_scoreboard_image->parent[n].pid), 0) == -1) { |
364 |
+ ap_update_child_status_from_indexes(n, 0, SERVER_DEAD, NULL); |
365 |
+ /* just mark it as having a successful exit status */ |
366 |
+ *status = APR_PROC_EXIT; |
367 |
+ *exitcode = 0; |
368 |
+ return(pid); |
369 |
+ } |
370 |
+ } |
371 |
+ return 0; |
372 |
+} |
373 |
+#endif |
374 |
+ |
375 |
+/***************************************************************** |
376 |
+ * Connection structures and accounting... |
377 |
+ */ |
378 |
+ |
379 |
+static void just_die(int sig) |
380 |
+{ |
381 |
+ clean_child_exit(0); |
382 |
+} |
383 |
+ |
384 |
+static void stop_listening(int sig) |
385 |
+{ |
386 |
+ ap_close_listeners(); |
387 |
+ |
388 |
+ /* For a graceful stop, we want the child to exit when done */ |
389 |
+ die_now = 1; |
390 |
+} |
391 |
+ |
392 |
+/* volatile just in case */ |
393 |
+static int volatile shutdown_pending; |
394 |
+static int volatile restart_pending; |
395 |
+static int volatile is_graceful; |
396 |
+ |
397 |
+static void sig_term(int sig) |
398 |
+{ |
399 |
+ if (shutdown_pending == 1) { |
400 |
+ /* Um, is this _probably_ not an error, if the user has |
401 |
+ * tried to do a shutdown twice quickly, so we won't |
402 |
+ * worry about reporting it. |
403 |
+ */ |
404 |
+ return; |
405 |
+ } |
406 |
+ shutdown_pending = 1; |
407 |
+ is_graceful = (sig == AP_SIG_GRACEFUL_STOP); |
408 |
+} |
409 |
+ |
410 |
+/* restart() is the signal handler for SIGHUP and AP_SIG_GRACEFUL |
411 |
+ * in the parent process, unless running in ONE_PROCESS mode |
412 |
+ */ |
413 |
+static void restart(int sig) |
414 |
+{ |
415 |
+ if (restart_pending == 1) { |
416 |
+ /* Probably not an error - don't bother reporting it */ |
417 |
+ return; |
418 |
+ } |
419 |
+ restart_pending = 1; |
420 |
+ is_graceful = (sig == AP_SIG_GRACEFUL); |
421 |
+} |
422 |
+ |
423 |
+static void set_signals(void) |
424 |
+{ |
425 |
+#ifndef NO_USE_SIGACTION |
426 |
+ struct sigaction sa; |
427 |
+#endif |
428 |
+ |
429 |
+ if (!one_process) { |
430 |
+ ap_fatal_signal_setup(ap_server_conf, pconf); |
431 |
+ } |
432 |
+ |
433 |
+#ifndef NO_USE_SIGACTION |
434 |
+ sigemptyset(&sa.sa_mask); |
435 |
+ sa.sa_flags = 0; |
436 |
+ |
437 |
+ sa.sa_handler = sig_term; |
438 |
+ if (sigaction(SIGTERM, &sa, NULL) < 0) |
439 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGTERM)"); |
440 |
+#ifdef AP_SIG_GRACEFUL_STOP |
441 |
+ if (sigaction(AP_SIG_GRACEFUL_STOP, &sa, NULL) < 0) |
442 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, |
443 |
+ "sigaction(" AP_SIG_GRACEFUL_STOP_STRING ")"); |
444 |
+#endif |
445 |
+#ifdef SIGINT |
446 |
+ if (sigaction(SIGINT, &sa, NULL) < 0) |
447 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGINT)"); |
448 |
+#endif |
449 |
+#ifdef SIGXCPU |
450 |
+ sa.sa_handler = SIG_DFL; |
451 |
+ if (sigaction(SIGXCPU, &sa, NULL) < 0) |
452 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGXCPU)"); |
453 |
+#endif |
454 |
+#ifdef SIGXFSZ |
455 |
+ sa.sa_handler = SIG_DFL; |
456 |
+ if (sigaction(SIGXFSZ, &sa, NULL) < 0) |
457 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGXFSZ)"); |
458 |
+#endif |
459 |
+#ifdef SIGPIPE |
460 |
+ sa.sa_handler = SIG_IGN; |
461 |
+ if (sigaction(SIGPIPE, &sa, NULL) < 0) |
462 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGPIPE)"); |
463 |
+#endif |
464 |
+ |
465 |
+ /* we want to ignore HUPs and AP_SIG_GRACEFUL while we're busy |
466 |
+ * processing one |
467 |
+ */ |
468 |
+ sigaddset(&sa.sa_mask, SIGHUP); |
469 |
+ sigaddset(&sa.sa_mask, AP_SIG_GRACEFUL); |
470 |
+ sa.sa_handler = restart; |
471 |
+ if (sigaction(SIGHUP, &sa, NULL) < 0) |
472 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGHUP)"); |
473 |
+ if (sigaction(AP_SIG_GRACEFUL, &sa, NULL) < 0) |
474 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(" AP_SIG_GRACEFUL_STRING ")"); |
475 |
+#else |
476 |
+ if (!one_process) { |
477 |
+#ifdef SIGXCPU |
478 |
+ apr_signal(SIGXCPU, SIG_DFL); |
479 |
+#endif /* SIGXCPU */ |
480 |
+#ifdef SIGXFSZ |
481 |
+ apr_signal(SIGXFSZ, SIG_DFL); |
482 |
+#endif /* SIGXFSZ */ |
483 |
+ } |
484 |
+ |
485 |
+ apr_signal(SIGTERM, sig_term); |
486 |
+#ifdef SIGHUP |
487 |
+ apr_signal(SIGHUP, restart); |
488 |
+#endif /* SIGHUP */ |
489 |
+#ifdef AP_SIG_GRACEFUL |
490 |
+ apr_signal(AP_SIG_GRACEFUL, restart); |
491 |
+#endif /* AP_SIG_GRACEFUL */ |
492 |
+#ifdef AP_SIG_GRACEFUL_STOP |
493 |
+ apr_signal(AP_SIG_GRACEFUL_STOP, sig_term); |
494 |
+#endif /* AP_SIG_GRACEFUL */ |
495 |
+#ifdef SIGPIPE |
496 |
+ apr_signal(SIGPIPE, SIG_IGN); |
497 |
+#endif /* SIGPIPE */ |
498 |
+ |
499 |
+#endif |
500 |
+} |
501 |
+ |
502 |
+/***************************************************************** |
503 |
+ * Child process main loop. |
504 |
+ * The following vars are static to avoid getting clobbered by longjmp(); |
505 |
+ * they are really private to child_main. |
506 |
+ */ |
507 |
+ |
508 |
+static int requests_this_child; |
509 |
+static int num_listensocks = 0; |
510 |
+ |
511 |
+ |
512 |
+int ap_graceful_stop_signalled(void) |
513 |
+{ |
514 |
+ /* not ever called anymore... */ |
515 |
+ return 0; |
516 |
+} |
517 |
+ |
518 |
+ |
519 |
+static void child_main(int child_num_arg) |
520 |
+{ |
521 |
+ apr_pool_t *ptrans; |
522 |
+ apr_allocator_t *allocator; |
523 |
+ apr_status_t status; |
524 |
+ int i; |
525 |
+ ap_listen_rec *lr; |
526 |
+ apr_pollset_t *pollset; |
527 |
+ ap_sb_handle_t *sbh; |
528 |
+ apr_bucket_alloc_t *bucket_alloc; |
529 |
+ int last_poll_idx = 0; |
530 |
+ |
531 |
+#if HAVE_LIBCAP |
532 |
+ cap_t caps; |
533 |
+ cap_value_t suidcaps[] = { |
534 |
+ CAP_SETUID, |
535 |
+ CAP_SETGID, |
536 |
+ CAP_DAC_READ_SEARCH, |
537 |
+ CAP_SYS_NICE, |
538 |
+ }; |
539 |
+#endif |
540 |
+ |
541 |
+ mpm_state = AP_MPMQ_STARTING; /* for benefit of any hooks that run as this |
542 |
+ * child initializes |
543 |
+ */ |
544 |
+ |
545 |
+ my_child_num = child_num_arg; |
546 |
+ ap_my_pid = getpid(); |
547 |
+ requests_this_child = 0; |
548 |
+ |
549 |
+ ap_fatal_signal_child_setup(ap_server_conf); |
550 |
+ |
551 |
+ /* Get a sub context for global allocations in this child, so that |
552 |
+ * we can have cleanups occur when the child exits. |
553 |
+ */ |
554 |
+ apr_allocator_create(&allocator); |
555 |
+ apr_allocator_max_free_set(allocator, ap_max_mem_free); |
556 |
+ apr_pool_create_ex(&pchild, pconf, NULL, allocator); |
557 |
+ apr_allocator_owner_set(allocator, pchild); |
558 |
+ |
559 |
+ apr_pool_create(&ptrans, pchild); |
560 |
+ apr_pool_tag(ptrans, "transaction"); |
561 |
+ |
562 |
+ /* needs to be done before we switch UIDs so we have permissions */ |
563 |
+ ap_reopen_scoreboard(pchild, NULL, 0); |
564 |
+ status = apr_proc_mutex_child_init(&accept_mutex, ap_lock_fname, pchild); |
565 |
+ if (status != APR_SUCCESS) { |
566 |
+ ap_log_error(APLOG_MARK, APLOG_EMERG, status, ap_server_conf, |
567 |
+ "Couldn't initialize cross-process lock in child " |
568 |
+ "(%s) (%d)", ap_lock_fname, ap_accept_lock_mech); |
569 |
+ clean_child_exit(APEXIT_CHILDFATAL); |
570 |
+ } |
571 |
+ |
572 |
+ ap_run_child_init(pchild, ap_server_conf); |
573 |
+ |
574 |
+ ap_create_sb_handle(&sbh, pchild, my_child_num, 0); |
575 |
+ |
576 |
+ (void) ap_update_child_status(sbh, SERVER_READY, (request_rec *) NULL); |
577 |
+ |
578 |
+ /* Set up the pollfd array */ |
579 |
+ /* ### check the status */ |
580 |
+ (void) apr_pollset_create(&pollset, num_listensocks, pchild, 0); |
581 |
+ |
582 |
+ for (lr = ap_listeners, i = num_listensocks; i--; lr = lr->next) { |
583 |
+ apr_pollfd_t pfd = { 0 }; |
584 |
+ |
585 |
+ pfd.desc_type = APR_POLL_SOCKET; |
586 |
+ pfd.desc.s = lr->sd; |
587 |
+ pfd.reqevents = APR_POLLIN; |
588 |
+ pfd.client_data = lr; |
589 |
+ |
590 |
+ /* ### check the status */ |
591 |
+ (void) apr_pollset_add(pollset, &pfd); |
592 |
+ } |
593 |
+ |
594 |
+#if HAVE_LIBCAP |
595 |
+ /* Drop as many privileges as we can. We'll still |
596 |
+ * access files with uid=0, and we can setuid() to anything, but |
597 |
+ * at least there's tons of other evilness (like loading kernel |
598 |
+ * modules) we can't do directly. (The setuid() capability will |
599 |
+ * go away automatically when we setuid() or exec() -- the former |
600 |
+ * is likely to come first.) |
601 |
+ */ |
602 |
+ caps = cap_init(); |
603 |
+ cap_clear(caps); |
604 |
+ cap_set_flag(caps, CAP_PERMITTED, sizeof(suidcaps)/sizeof(cap_value_t), suidcaps, CAP_SET); |
605 |
+ cap_set_flag(caps, CAP_EFFECTIVE, sizeof(suidcaps)/sizeof(cap_value_t), suidcaps, CAP_SET); |
606 |
+ cap_set_proc(caps); |
607 |
+ cap_free(caps); |
608 |
+#endif |
609 |
+ |
610 |
+ mpm_state = AP_MPMQ_RUNNING; |
611 |
+ |
612 |
+ bucket_alloc = apr_bucket_alloc_create(pchild); |
613 |
+ |
614 |
+ /* die_now is set when AP_SIG_GRACEFUL is received in the child; |
615 |
+ * shutdown_pending is set when SIGTERM is received when running |
616 |
+ * in single process mode. */ |
617 |
+ while (!die_now && !shutdown_pending) { |
618 |
+ conn_rec *current_conn; |
619 |
+ void *csd; |
620 |
+ |
621 |
+ /* |
622 |
+ * (Re)initialize this child to a pre-connection state. |
623 |
+ */ |
624 |
+ |
625 |
+ apr_pool_clear(ptrans); |
626 |
+ |
627 |
+ if ((ap_max_requests_per_child > 0 |
628 |
+ && requests_this_child++ >= ap_max_requests_per_child)) { |
629 |
+ clean_child_exit(0); |
630 |
+ } |
631 |
+ |
632 |
+ (void) ap_update_child_status(sbh, SERVER_READY, (request_rec *) NULL); |
633 |
+ |
634 |
+ /* |
635 |
+ * Wait for an acceptable connection to arrive. |
636 |
+ */ |
637 |
+ |
638 |
+ /* Lock around "accept", if necessary */ |
639 |
+ SAFE_ACCEPT(accept_mutex_on()); |
640 |
+ |
641 |
+ if (num_listensocks == 1) { |
642 |
+ /* There is only one listener record, so refer to that one. */ |
643 |
+ lr = ap_listeners; |
644 |
+ } |
645 |
+ else { |
646 |
+ /* multiple listening sockets - need to poll */ |
647 |
+ for (;;) { |
648 |
+ apr_int32_t numdesc; |
649 |
+ const apr_pollfd_t *pdesc; |
650 |
+ |
651 |
+ /* timeout == -1 == wait forever */ |
652 |
+ status = apr_pollset_poll(pollset, -1, &numdesc, &pdesc); |
653 |
+ if (status != APR_SUCCESS) { |
654 |
+ if (APR_STATUS_IS_EINTR(status)) { |
655 |
+ if (one_process && shutdown_pending) { |
656 |
+ return; |
657 |
+ } |
658 |
+ else if (die_now) { |
659 |
+ /* In graceful stop/restart; drop the mutex |
660 |
+ * and terminate the child. */ |
661 |
+ SAFE_ACCEPT(accept_mutex_off()); |
662 |
+ clean_child_exit(0); |
663 |
+ } |
664 |
+ continue; |
665 |
+ } |
666 |
+ /* Single Unix documents select as returning errnos |
667 |
+ * EBADF, EINTR, and EINVAL... and in none of those |
668 |
+ * cases does it make sense to continue. In fact |
669 |
+ * on Linux 2.0.x we seem to end up with EFAULT |
670 |
+ * occasionally, and we'd loop forever due to it. |
671 |
+ */ |
672 |
+ ap_log_error(APLOG_MARK, APLOG_ERR, status, |
673 |
+ ap_server_conf, "apr_pollset_poll: (listen)"); |
674 |
+ SAFE_ACCEPT(accept_mutex_off()); |
675 |
+ clean_child_exit(1); |
676 |
+ } |
677 |
+ |
678 |
+ /* We can always use pdesc[0], but sockets at position N |
679 |
+ * could end up completely starved of attention in a very |
680 |
+ * busy server. Therefore, we round-robin across the |
681 |
+ * returned set of descriptors. While it is possible that |
682 |
+ * the returned set of descriptors might flip around and |
683 |
+ * continue to starve some sockets, we happen to know the |
684 |
+ * internal pollset implementation retains ordering |
685 |
+ * stability of the sockets. Thus, the round-robin should |
686 |
+ * ensure that a socket will eventually be serviced. |
687 |
+ */ |
688 |
+ if (last_poll_idx >= numdesc) |
689 |
+ last_poll_idx = 0; |
690 |
+ |
691 |
+ /* Grab a listener record from the client_data of the poll |
692 |
+ * descriptor, and advance our saved index to round-robin |
693 |
+ * the next fetch. |
694 |
+ * |
695 |
+ * ### hmm... this descriptor might have POLLERR rather |
696 |
+ * ### than POLLIN |
697 |
+ */ |
698 |
+ lr = pdesc[last_poll_idx++].client_data; |
699 |
+ goto got_fd; |
700 |
+ } |
701 |
+ } |
702 |
+ got_fd: |
703 |
+ /* if we accept() something we don't want to die, so we have to |
704 |
+ * defer the exit |
705 |
+ */ |
706 |
+ status = lr->accept_func(&csd, lr, ptrans); |
707 |
+ |
708 |
+ SAFE_ACCEPT(accept_mutex_off()); /* unlock after "accept" */ |
709 |
+ |
710 |
+ if (status == APR_EGENERAL) { |
711 |
+ /* resource shortage or should-not-occur occured */ |
712 |
+ clean_child_exit(1); |
713 |
+ } |
714 |
+ else if (status != APR_SUCCESS) { |
715 |
+ continue; |
716 |
+ } |
717 |
+ |
718 |
+ /* |
719 |
+ * We now have a connection, so set it up with the appropriate |
720 |
+ * socket options, file descriptors, and read/write buffers. |
721 |
+ */ |
722 |
+ |
723 |
+ { |
724 |
+ pid_t pid = fork(), child_pid; |
725 |
+ int status; |
726 |
+ switch (pid) { |
727 |
+ case -1: |
728 |
+ ap_log_error(APLOG_MARK, APLOG_ERR, errno, NULL, "fork: Unable to fork new process"); |
729 |
+ break; |
730 |
+ case 0: /* child */ |
731 |
+ apr_proc_mutex_child_init(&accept_mutex, ap_lock_fname, pchild); |
732 |
+ current_conn = ap_run_create_connection(ptrans, ap_server_conf, csd, my_child_num, sbh, bucket_alloc); |
733 |
+ if (current_conn) { |
734 |
+ ap_process_connection(current_conn, csd); |
735 |
+ ap_lingering_close(current_conn); |
736 |
+ } |
737 |
+ exit(0); |
738 |
+ default: /* parent; just wait for child to be done */ |
739 |
+ do { |
740 |
+ child_pid = waitpid(pid, &status, 0); |
741 |
+ } while (child_pid == -1 && errno == EINTR); |
742 |
+ |
743 |
+ if (child_pid != pid || !WIFEXITED(status)) { |
744 |
+ if (WIFSIGNALED(status)) { |
745 |
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, ap_server_conf, "child died with signal %u", WTERMSIG(status)); |
746 |
+ } else if (WEXITSTATUS(status) != 0) { |
747 |
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, ap_server_conf, "child exited with non-zero exit status %u", WEXITSTATUS(status)); |
748 |
+ } else { |
749 |
+ ap_log_error(APLOG_MARK, APLOG_ERR, errno, NULL, "waitpid() failed"); |
750 |
+ } |
751 |
+ clean_child_exit(1); |
752 |
+ } |
753 |
+ break; |
754 |
+ } |
755 |
+ } |
756 |
+ |
757 |
+ /* Check the pod and the generation number after processing a |
758 |
+ * connection so that we'll go away if a graceful restart occurred |
759 |
+ * while we were processing the connection or we are the lucky |
760 |
+ * idle server process that gets to die. |
761 |
+ */ |
762 |
+ if (ap_mpm_pod_check(pod) == APR_SUCCESS) { /* selected as idle? */ |
763 |
+ die_now = 1; |
764 |
+ } |
765 |
+ else if (ap_my_generation != |
766 |
+ ap_scoreboard_image->global->running_generation) { /* restart? */ |
767 |
+ /* yeah, this could be non-graceful restart, in which case the |
768 |
+ * parent will kill us soon enough, but why bother checking? |
769 |
+ */ |
770 |
+ die_now = 1; |
771 |
+ } |
772 |
+ |
773 |
+ /* if we have already setuid(), die (we can't be used anyhow) */ |
774 |
+ if (getuid()) |
775 |
+ die_now = 1; |
776 |
+ } |
777 |
+ clean_child_exit(0); |
778 |
+} |
779 |
+ |
780 |
+ |
781 |
+static int make_child(server_rec *s, int slot) |
782 |
+{ |
783 |
+ int pid; |
784 |
+ |
785 |
+ if (slot + 1 > ap_max_daemons_limit) { |
786 |
+ ap_max_daemons_limit = slot + 1; |
787 |
+ } |
788 |
+ |
789 |
+ if (one_process) { |
790 |
+ apr_signal(SIGHUP, sig_term); |
791 |
+ /* Don't catch AP_SIG_GRACEFUL in ONE_PROCESS mode :) */ |
792 |
+ apr_signal(SIGINT, sig_term); |
793 |
+#ifdef SIGQUIT |
794 |
+ apr_signal(SIGQUIT, SIG_DFL); |
795 |
+#endif |
796 |
+ apr_signal(SIGTERM, sig_term); |
797 |
+ child_main(slot); |
798 |
+ return 0; |
799 |
+ } |
800 |
+ |
801 |
+ (void) ap_update_child_status_from_indexes(slot, 0, SERVER_STARTING, |
802 |
+ (request_rec *) NULL); |
803 |
+ |
804 |
+ |
805 |
+#ifdef _OSD_POSIX |
806 |
+ /* BS2000 requires a "special" version of fork() before a setuid() call */ |
807 |
+ if ((pid = os_fork(unixd_config.user_name)) == -1) { |
808 |
+#elif defined(TPF) |
809 |
+ if ((pid = os_fork(s, slot)) == -1) { |
810 |
+#else |
811 |
+ if ((pid = fork()) == -1) { |
812 |
+#endif |
813 |
+ ap_log_error(APLOG_MARK, APLOG_ERR, errno, s, "fork: Unable to fork new process"); |
814 |
+ |
815 |
+ /* fork didn't succeed. Fix the scoreboard or else |
816 |
+ * it will say SERVER_STARTING forever and ever |
817 |
+ */ |
818 |
+ (void) ap_update_child_status_from_indexes(slot, 0, SERVER_DEAD, |
819 |
+ (request_rec *) NULL); |
820 |
+ |
821 |
+ /* In case system resources are maxxed out, we don't want |
822 |
+ * Apache running away with the CPU trying to fork over and |
823 |
+ * over and over again. |
824 |
+ */ |
825 |
+ sleep(10); |
826 |
+ |
827 |
+ return -1; |
828 |
+ } |
829 |
+ |
830 |
+ if (!pid) { |
831 |
+#ifdef HAVE_BINDPROCESSOR |
832 |
+ /* by default AIX binds to a single processor |
833 |
+ * this bit unbinds children which will then bind to another cpu |
834 |
+ */ |
835 |
+ int status = bindprocessor(BINDPROCESS, (int)getpid(), |
836 |
+ PROCESSOR_CLASS_ANY); |
837 |
+ if (status != OK) { |
838 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, |
839 |
+ ap_server_conf, "processor unbind failed %d", status); |
840 |
+ } |
841 |
+#endif |
842 |
+ RAISE_SIGSTOP(MAKE_CHILD); |
843 |
+ AP_MONCONTROL(1); |
844 |
+ /* Disable the parent's signal handlers and set up proper handling in |
845 |
+ * the child. |
846 |
+ */ |
847 |
+ apr_signal(SIGHUP, just_die); |
848 |
+ apr_signal(SIGTERM, just_die); |
849 |
+ /* The child process just closes listeners on AP_SIG_GRACEFUL. |
850 |
+ * The pod is used for signalling the graceful restart. |
851 |
+ */ |
852 |
+ apr_signal(AP_SIG_GRACEFUL, stop_listening); |
853 |
+ child_main(slot); |
854 |
+ } |
855 |
+ |
856 |
+ ap_scoreboard_image->parent[slot].pid = pid; |
857 |
+ |
858 |
+ return 0; |
859 |
+} |
860 |
+ |
861 |
+ |
862 |
+/* start up a bunch of children */ |
863 |
+static void startup_children(int number_to_start) |
864 |
+{ |
865 |
+ int i; |
866 |
+ |
867 |
+ for (i = 0; number_to_start && i < ap_daemons_limit; ++i) { |
868 |
+ if (ap_scoreboard_image->servers[i][0].status != SERVER_DEAD) { |
869 |
+ continue; |
870 |
+ } |
871 |
+ if (make_child(ap_server_conf, i) < 0) { |
872 |
+ break; |
873 |
+ } |
874 |
+ --number_to_start; |
875 |
+ } |
876 |
+} |
877 |
+ |
878 |
+ |
879 |
+/* |
880 |
+ * idle_spawn_rate is the number of children that will be spawned on the |
881 |
+ * next maintenance cycle if there aren't enough idle servers. It is |
882 |
+ * doubled up to MAX_SPAWN_RATE, and reset only when a cycle goes by |
883 |
+ * without the need to spawn. |
884 |
+ */ |
885 |
+static int idle_spawn_rate = 1; |
886 |
+#ifndef MAX_SPAWN_RATE |
887 |
+#define MAX_SPAWN_RATE (32) |
888 |
+#endif |
889 |
+static int hold_off_on_exponential_spawning; |
890 |
+ |
891 |
+static void perform_idle_server_maintenance(apr_pool_t *p) |
892 |
+{ |
893 |
+ int i; |
894 |
+ int to_kill; |
895 |
+ int idle_count; |
896 |
+ worker_score *ws; |
897 |
+ int free_length; |
898 |
+ int free_slots[MAX_SPAWN_RATE]; |
899 |
+ int last_non_dead; |
900 |
+ int total_non_dead; |
901 |
+ |
902 |
+ /* initialize the free_list */ |
903 |
+ free_length = 0; |
904 |
+ |
905 |
+ to_kill = -1; |
906 |
+ idle_count = 0; |
907 |
+ last_non_dead = -1; |
908 |
+ total_non_dead = 0; |
909 |
+ |
910 |
+ for (i = 0; i < ap_daemons_limit; ++i) { |
911 |
+ int status; |
912 |
+ |
913 |
+ if (i >= ap_max_daemons_limit && free_length == idle_spawn_rate) |
914 |
+ break; |
915 |
+ ws = &ap_scoreboard_image->servers[i][0]; |
916 |
+ status = ws->status; |
917 |
+ if (status == SERVER_DEAD) { |
918 |
+ /* try to keep children numbers as low as possible */ |
919 |
+ if (free_length < idle_spawn_rate) { |
920 |
+ free_slots[free_length] = i; |
921 |
+ ++free_length; |
922 |
+ } |
923 |
+ } |
924 |
+ else { |
925 |
+ /* We consider a starting server as idle because we started it |
926 |
+ * at least a cycle ago, and if it still hasn't finished starting |
927 |
+ * then we're just going to swamp things worse by forking more. |
928 |
+ * So we hopefully won't need to fork more if we count it. |
929 |
+ * This depends on the ordering of SERVER_READY and SERVER_STARTING. |
930 |
+ */ |
931 |
+ if (status <= SERVER_READY) { |
932 |
+ ++ idle_count; |
933 |
+ /* always kill the highest numbered child if we have to... |
934 |
+ * no really well thought out reason ... other than observing |
935 |
+ * the server behaviour under linux where lower numbered children |
936 |
+ * tend to service more hits (and hence are more likely to have |
937 |
+ * their data in cpu caches). |
938 |
+ */ |
939 |
+ to_kill = i; |
940 |
+ } |
941 |
+ |
942 |
+ ++total_non_dead; |
943 |
+ last_non_dead = i; |
944 |
+ } |
945 |
+ } |
946 |
+ ap_max_daemons_limit = last_non_dead + 1; |
947 |
+ if (idle_count > ap_daemons_max_free) { |
948 |
+ /* kill off one child... we use the pod because that'll cause it to |
949 |
+ * shut down gracefully, in case it happened to pick up a request |
950 |
+ * while we were counting |
951 |
+ */ |
952 |
+ ap_mpm_pod_signal(pod); |
953 |
+ idle_spawn_rate = 1; |
954 |
+ } |
955 |
+ else if (idle_count < ap_daemons_min_free) { |
956 |
+ /* terminate the free list */ |
957 |
+ if (free_length == 0) { |
958 |
+ /* only report this condition once */ |
959 |
+ static int reported = 0; |
960 |
+ |
961 |
+ if (!reported) { |
962 |
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, ap_server_conf, |
963 |
+ "server reached MaxClients setting, consider" |
964 |
+ " raising the MaxClients setting"); |
965 |
+ reported = 1; |
966 |
+ } |
967 |
+ idle_spawn_rate = 1; |
968 |
+ } |
969 |
+ else { |
970 |
+ if (idle_spawn_rate >= 8) { |
971 |
+ ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf, |
972 |
+ "server seems busy, (you may need " |
973 |
+ "to increase StartServers, or Min/MaxSpareServers), " |
974 |
+ "spawning %d children, there are %d idle, and " |
975 |
+ "%d total children", idle_spawn_rate, |
976 |
+ idle_count, total_non_dead); |
977 |
+ } |
978 |
+ for (i = 0; i < free_length; ++i) { |
979 |
+#ifdef TPF |
980 |
+ if (make_child(ap_server_conf, free_slots[i]) == -1) { |
981 |
+ if(free_length == 1) { |
982 |
+ shutdown_pending = 1; |
983 |
+ ap_log_error(APLOG_MARK, APLOG_EMERG, 0, ap_server_conf, |
984 |
+ "No active child processes: shutting down"); |
985 |
+ } |
986 |
+ } |
987 |
+#else |
988 |
+ make_child(ap_server_conf, free_slots[i]); |
989 |
+#endif /* TPF */ |
990 |
+ } |
991 |
+ /* the next time around we want to spawn twice as many if this |
992 |
+ * wasn't good enough, but not if we've just done a graceful |
993 |
+ */ |
994 |
+ if (hold_off_on_exponential_spawning) { |
995 |
+ --hold_off_on_exponential_spawning; |
996 |
+ } |
997 |
+ else if (idle_spawn_rate < MAX_SPAWN_RATE) { |
998 |
+ idle_spawn_rate *= 2; |
999 |
+ } |
1000 |
+ } |
1001 |
+ } |
1002 |
+ else { |
1003 |
+ idle_spawn_rate = 1; |
1004 |
+ } |
1005 |
+} |
1006 |
+ |
1007 |
+/***************************************************************** |
1008 |
+ * Executive routines. |
1009 |
+ */ |
1010 |
+ |
1011 |
+int ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s) |
1012 |
+{ |
1013 |
+ int index; |
1014 |
+ int remaining_children_to_start; |
1015 |
+ apr_status_t rv; |
1016 |
+ |
1017 |
+ ap_log_pid(pconf, ap_pid_fname); |
1018 |
+ |
1019 |
+ first_server_limit = server_limit; |
1020 |
+ if (changed_limit_at_restart) { |
1021 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s, |
1022 |
+ "WARNING: Attempt to change ServerLimit " |
1023 |
+ "ignored during restart"); |
1024 |
+ changed_limit_at_restart = 0; |
1025 |
+ } |
1026 |
+ |
1027 |
+ /* Initialize cross-process accept lock */ |
1028 |
+ ap_lock_fname = apr_psprintf(_pconf, "%s.%" APR_PID_T_FMT, |
1029 |
+ ap_server_root_relative(_pconf, ap_lock_fname), |
1030 |
+ ap_my_pid); |
1031 |
+ |
1032 |
+ rv = apr_proc_mutex_create(&accept_mutex, ap_lock_fname, |
1033 |
+ ap_accept_lock_mech, _pconf); |
1034 |
+ if (rv != APR_SUCCESS) { |
1035 |
+ ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s, |
1036 |
+ "Couldn't create accept lock (%s) (%d)", |
1037 |
+ ap_lock_fname, ap_accept_lock_mech); |
1038 |
+ mpm_state = AP_MPMQ_STOPPING; |
1039 |
+ return 1; |
1040 |
+ } |
1041 |
+ |
1042 |
+#if APR_USE_SYSVSEM_SERIALIZE |
1043 |
+ if (ap_accept_lock_mech == APR_LOCK_DEFAULT || |
1044 |
+ ap_accept_lock_mech == APR_LOCK_SYSVSEM) { |
1045 |
+#else |
1046 |
+ if (ap_accept_lock_mech == APR_LOCK_SYSVSEM) { |
1047 |
+#endif |
1048 |
+ rv = unixd_set_proc_mutex_perms(accept_mutex); |
1049 |
+ if (rv != APR_SUCCESS) { |
1050 |
+ ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s, |
1051 |
+ "Couldn't set permissions on cross-process lock; " |
1052 |
+ "check User and Group directives"); |
1053 |
+ mpm_state = AP_MPMQ_STOPPING; |
1054 |
+ return 1; |
1055 |
+ } |
1056 |
+ } |
1057 |
+ |
1058 |
+ if (!is_graceful) { |
1059 |
+ if (ap_run_pre_mpm(s->process->pool, SB_SHARED) != OK) { |
1060 |
+ mpm_state = AP_MPMQ_STOPPING; |
1061 |
+ return 1; |
1062 |
+ } |
1063 |
+ /* fix the generation number in the global score; we just got a new, |
1064 |
+ * cleared scoreboard |
1065 |
+ */ |
1066 |
+ ap_scoreboard_image->global->running_generation = ap_my_generation; |
1067 |
+ } |
1068 |
+ |
1069 |
+ set_signals(); |
1070 |
+ |
1071 |
+ if (one_process) { |
1072 |
+ AP_MONCONTROL(1); |
1073 |
+ make_child(ap_server_conf, 0); |
1074 |
+ } |
1075 |
+ else { |
1076 |
+ if (ap_daemons_max_free < ap_daemons_min_free + 1) /* Don't thrash... */ |
1077 |
+ ap_daemons_max_free = ap_daemons_min_free + 1; |
1078 |
+ |
1079 |
+ /* If we're doing a graceful_restart then we're going to see a lot |
1080 |
+ * of children exiting immediately when we get into the main loop |
1081 |
+ * below (because we just sent them AP_SIG_GRACEFUL). This happens pretty |
1082 |
+ * rapidly... and for each one that exits we'll start a new one until |
1083 |
+ * we reach at least daemons_min_free. But we may be permitted to |
1084 |
+ * start more than that, so we'll just keep track of how many we're |
1085 |
+ * supposed to start up without the 1 second penalty between each fork. |
1086 |
+ */ |
1087 |
+ remaining_children_to_start = ap_daemons_to_start; |
1088 |
+ if (remaining_children_to_start > ap_daemons_limit) { |
1089 |
+ remaining_children_to_start = ap_daemons_limit; |
1090 |
+ } |
1091 |
+ if (!is_graceful) { |
1092 |
+ startup_children(remaining_children_to_start); |
1093 |
+ remaining_children_to_start = 0; |
1094 |
+ } |
1095 |
+ else { |
1096 |
+ /* give the system some time to recover before kicking into |
1097 |
+ * exponential mode |
1098 |
+ */ |
1099 |
+ hold_off_on_exponential_spawning = 10; |
1100 |
+ } |
1101 |
+ |
1102 |
+ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
1103 |
+ "%s configured -- resuming normal operations", |
1104 |
+ ap_get_server_description()); |
1105 |
+ ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf, |
1106 |
+ "Server built: %s", ap_get_server_built()); |
1107 |
+#ifdef AP_MPM_WANT_SET_ACCEPT_LOCK_MECH |
1108 |
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, |
1109 |
+ "AcceptMutex: %s (default: %s)", |
1110 |
+ apr_proc_mutex_name(accept_mutex), |
1111 |
+ apr_proc_mutex_defname()); |
1112 |
+#endif |
1113 |
+ restart_pending = shutdown_pending = 0; |
1114 |
+ |
1115 |
+ mpm_state = AP_MPMQ_RUNNING; |
1116 |
+ |
1117 |
+ while (!restart_pending && !shutdown_pending) { |
1118 |
+ int child_slot; |
1119 |
+ apr_exit_why_e exitwhy; |
1120 |
+ int status, processed_status; |
1121 |
+ /* this is a memory leak, but I'll fix it later. */ |
1122 |
+ apr_proc_t pid; |
1123 |
+ |
1124 |
+ ap_wait_or_timeout(&exitwhy, &status, &pid, pconf); |
1125 |
+ |
1126 |
+ /* XXX: if it takes longer than 1 second for all our children |
1127 |
+ * to start up and get into IDLE state then we may spawn an |
1128 |
+ * extra child |
1129 |
+ */ |
1130 |
+ if (pid.pid != -1) { |
1131 |
+ processed_status = ap_process_child_status(&pid, exitwhy, status); |
1132 |
+ if (processed_status == APEXIT_CHILDFATAL) { |
1133 |
+ mpm_state = AP_MPMQ_STOPPING; |
1134 |
+ return 1; |
1135 |
+ } |
1136 |
+ |
1137 |
+ /* non-fatal death... note that it's gone in the scoreboard. */ |
1138 |
+ child_slot = find_child_by_pid(&pid); |
1139 |
+ if (child_slot >= 0) { |
1140 |
+ (void) ap_update_child_status_from_indexes(child_slot, 0, SERVER_DEAD, |
1141 |
+ (request_rec *) NULL); |
1142 |
+ if (processed_status == APEXIT_CHILDSICK) { |
1143 |
+ /* child detected a resource shortage (E[NM]FILE, ENOBUFS, etc) |
1144 |
+ * cut the fork rate to the minimum |
1145 |
+ */ |
1146 |
+ idle_spawn_rate = 1; |
1147 |
+ } |
1148 |
+ else if (remaining_children_to_start |
1149 |
+ && child_slot < ap_daemons_limit) { |
1150 |
+ /* we're still doing a 1-for-1 replacement of dead |
1151 |
+ * children with new children |
1152 |
+ */ |
1153 |
+ make_child(ap_server_conf, child_slot); |
1154 |
+ --remaining_children_to_start; |
1155 |
+ } |
1156 |
+#if APR_HAS_OTHER_CHILD |
1157 |
+ } |
1158 |
+ else if (apr_proc_other_child_alert(&pid, APR_OC_REASON_DEATH, status) == APR_SUCCESS) { |
1159 |
+ /* handled */ |
1160 |
+#endif |
1161 |
+ } |
1162 |
+ else if (is_graceful) { |
1163 |
+ /* Great, we've probably just lost a slot in the |
1164 |
+ * scoreboard. Somehow we don't know about this |
1165 |
+ * child. |
1166 |
+ */ |
1167 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, |
1168 |
+ 0, ap_server_conf, |
1169 |
+ "long lost child came home! (pid %ld)", (long)pid.pid); |
1170 |
+ } |
1171 |
+ /* Don't perform idle maintenance when a child dies, |
1172 |
+ * only do it when there's a timeout. Remember only a |
1173 |
+ * finite number of children can die, and it's pretty |
1174 |
+ * pathological for a lot to die suddenly. |
1175 |
+ */ |
1176 |
+ continue; |
1177 |
+ } |
1178 |
+ else if (remaining_children_to_start) { |
1179 |
+ /* we hit a 1 second timeout in which none of the previous |
1180 |
+ * generation of children needed to be reaped... so assume |
1181 |
+ * they're all done, and pick up the slack if any is left. |
1182 |
+ */ |
1183 |
+ startup_children(remaining_children_to_start); |
1184 |
+ remaining_children_to_start = 0; |
1185 |
+ /* In any event we really shouldn't do the code below because |
1186 |
+ * few of the servers we just started are in the IDLE state |
1187 |
+ * yet, so we'd mistakenly create an extra server. |
1188 |
+ */ |
1189 |
+ continue; |
1190 |
+ } |
1191 |
+ |
1192 |
+ perform_idle_server_maintenance(pconf); |
1193 |
+#ifdef TPF |
1194 |
+ shutdown_pending = os_check_server(tpf_server_name); |
1195 |
+ ap_check_signals(); |
1196 |
+ sleep(1); |
1197 |
+#endif /*TPF */ |
1198 |
+ } |
1199 |
+ } /* one_process */ |
1200 |
+ |
1201 |
+ mpm_state = AP_MPMQ_STOPPING; |
1202 |
+ |
1203 |
+ if (shutdown_pending && !is_graceful) { |
1204 |
+ /* Time to shut down: |
1205 |
+ * Kill child processes, tell them to call child_exit, etc... |
1206 |
+ */ |
1207 |
+ if (unixd_killpg(getpgrp(), SIGTERM) < 0) { |
1208 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "killpg SIGTERM"); |
1209 |
+ } |
1210 |
+ ap_reclaim_child_processes(1); /* Start with SIGTERM */ |
1211 |
+ |
1212 |
+ /* cleanup pid file on normal shutdown */ |
1213 |
+ { |
1214 |
+ const char *pidfile = NULL; |
1215 |
+ pidfile = ap_server_root_relative (pconf, ap_pid_fname); |
1216 |
+ if ( pidfile != NULL && unlink(pidfile) == 0) |
1217 |
+ ap_log_error(APLOG_MARK, APLOG_INFO, |
1218 |
+ 0, ap_server_conf, |
1219 |
+ "removed PID file %s (pid=%ld)", |
1220 |
+ pidfile, (long)getpid()); |
1221 |
+ } |
1222 |
+ |
1223 |
+ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
1224 |
+ "caught SIGTERM, shutting down"); |
1225 |
+ |
1226 |
+ return 1; |
1227 |
+ } else if (shutdown_pending) { |
1228 |
+ /* Time to perform a graceful shut down: |
1229 |
+ * Reap the inactive children, and ask the active ones |
1230 |
+ * to close their listeners, then wait until they are |
1231 |
+ * all done to exit. |
1232 |
+ */ |
1233 |
+ int active_children; |
1234 |
+ apr_time_t cutoff = 0; |
1235 |
+ |
1236 |
+ /* Stop listening */ |
1237 |
+ ap_close_listeners(); |
1238 |
+ |
1239 |
+ /* kill off the idle ones */ |
1240 |
+ ap_mpm_pod_killpg(pod, ap_max_daemons_limit); |
1241 |
+ |
1242 |
+ /* Send SIGUSR1 to the active children */ |
1243 |
+ active_children = 0; |
1244 |
+ for (index = 0; index < ap_daemons_limit; ++index) { |
1245 |
+ if (ap_scoreboard_image->servers[index][0].status != SERVER_DEAD) { |
1246 |
+ /* Ask each child to close its listeners. */ |
1247 |
+ ap_mpm_safe_kill(MPM_CHILD_PID(index), AP_SIG_GRACEFUL); |
1248 |
+ active_children++; |
1249 |
+ } |
1250 |
+ } |
1251 |
+ |
1252 |
+ /* Allow each child which actually finished to exit */ |
1253 |
+ ap_relieve_child_processes(); |
1254 |
+ |
1255 |
+ /* cleanup pid file */ |
1256 |
+ { |
1257 |
+ const char *pidfile = NULL; |
1258 |
+ pidfile = ap_server_root_relative (pconf, ap_pid_fname); |
1259 |
+ if ( pidfile != NULL && unlink(pidfile) == 0) |
1260 |
+ ap_log_error(APLOG_MARK, APLOG_INFO, |
1261 |
+ 0, ap_server_conf, |
1262 |
+ "removed PID file %s (pid=%ld)", |
1263 |
+ pidfile, (long)getpid()); |
1264 |
+ } |
1265 |
+ |
1266 |
+ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
1267 |
+ "caught " AP_SIG_GRACEFUL_STOP_STRING ", shutting down gracefully"); |
1268 |
+ |
1269 |
+ if (ap_graceful_shutdown_timeout) { |
1270 |
+ cutoff = apr_time_now() + |
1271 |
+ apr_time_from_sec(ap_graceful_shutdown_timeout); |
1272 |
+ } |
1273 |
+ |
1274 |
+ /* Don't really exit until each child has finished */ |
1275 |
+ shutdown_pending = 0; |
1276 |
+ do { |
1277 |
+ /* Pause for a second */ |
1278 |
+ sleep(1); |
1279 |
+ |
1280 |
+ /* Relieve any children which have now exited */ |
1281 |
+ ap_relieve_child_processes(); |
1282 |
+ |
1283 |
+ active_children = 0; |
1284 |
+ for (index = 0; index < ap_daemons_limit; ++index) { |
1285 |
+ if (ap_mpm_safe_kill(MPM_CHILD_PID(index), 0) == APR_SUCCESS) { |
1286 |
+ active_children = 1; |
1287 |
+ /* Having just one child is enough to stay around */ |
1288 |
+ break; |
1289 |
+ } |
1290 |
+ } |
1291 |
+ } while (!shutdown_pending && active_children && |
1292 |
+ (!ap_graceful_shutdown_timeout || apr_time_now() < cutoff)); |
1293 |
+ |
1294 |
+ /* We might be here because we received SIGTERM, either |
1295 |
+ * way, try and make sure that all of our processes are |
1296 |
+ * really dead. |
1297 |
+ */ |
1298 |
+ unixd_killpg(getpgrp(), SIGTERM); |
1299 |
+ |
1300 |
+ return 1; |
1301 |
+ } |
1302 |
+ |
1303 |
+ /* we've been told to restart */ |
1304 |
+ apr_signal(SIGHUP, SIG_IGN); |
1305 |
+ apr_signal(AP_SIG_GRACEFUL, SIG_IGN); |
1306 |
+ if (one_process) { |
1307 |
+ /* not worth thinking about */ |
1308 |
+ return 1; |
1309 |
+ } |
1310 |
+ |
1311 |
+ /* advance to the next generation */ |
1312 |
+ /* XXX: we really need to make sure this new generation number isn't in |
1313 |
+ * use by any of the children. |
1314 |
+ */ |
1315 |
+ ++ap_my_generation; |
1316 |
+ ap_scoreboard_image->global->running_generation = ap_my_generation; |
1317 |
+ |
1318 |
+ if (is_graceful) { |
1319 |
+ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
1320 |
+ "Graceful restart requested, doing restart"); |
1321 |
+ |
1322 |
+ /* kill off the idle ones */ |
1323 |
+ ap_mpm_pod_killpg(pod, ap_max_daemons_limit); |
1324 |
+ |
1325 |
+ /* This is mostly for debugging... so that we know what is still |
1326 |
+ * gracefully dealing with existing request. This will break |
1327 |
+ * in a very nasty way if we ever have the scoreboard totally |
1328 |
+ * file-based (no shared memory) |
1329 |
+ */ |
1330 |
+ for (index = 0; index < ap_daemons_limit; ++index) { |
1331 |
+ if (ap_scoreboard_image->servers[index][0].status != SERVER_DEAD) { |
1332 |
+ ap_scoreboard_image->servers[index][0].status = SERVER_GRACEFUL; |
1333 |
+ /* Ask each child to close its listeners. |
1334 |
+ * |
1335 |
+ * NOTE: we use the scoreboard, because if we send SIGUSR1 |
1336 |
+ * to every process in the group, this may include CGI's, |
1337 |
+ * piped loggers, etc. They almost certainly won't handle |
1338 |
+ * it gracefully. |
1339 |
+ */ |
1340 |
+ ap_mpm_safe_kill(ap_scoreboard_image->parent[index].pid, AP_SIG_GRACEFUL); |
1341 |
+ } |
1342 |
+ } |
1343 |
+ } |
1344 |
+ else { |
1345 |
+ /* Kill 'em off */ |
1346 |
+ if (unixd_killpg(getpgrp(), SIGHUP) < 0) { |
1347 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "killpg SIGHUP"); |
1348 |
+ } |
1349 |
+ ap_reclaim_child_processes(0); /* Not when just starting up */ |
1350 |
+ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, |
1351 |
+ "SIGHUP received. Attempting to restart"); |
1352 |
+ } |
1353 |
+ |
1354 |
+ return 0; |
1355 |
+} |
1356 |
+ |
1357 |
+/* This really should be a post_config hook, but the error log is already |
1358 |
+ * redirected by that point, so we need to do this in the open_logs phase. |
1359 |
+ */ |
1360 |
+static int itk_open_logs(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s) |
1361 |
+{ |
1362 |
+ apr_status_t rv; |
1363 |
+ |
1364 |
+ pconf = p; |
1365 |
+ ap_server_conf = s; |
1366 |
+ |
1367 |
+ if ((num_listensocks = ap_setup_listeners(ap_server_conf)) < 1) { |
1368 |
+ ap_log_error(APLOG_MARK, APLOG_ALERT|APLOG_STARTUP, 0, |
1369 |
+ NULL, "no listening sockets available, shutting down"); |
1370 |
+ return DONE; |
1371 |
+ } |
1372 |
+ |
1373 |
+ if ((rv = ap_mpm_pod_open(pconf, &pod))) { |
1374 |
+ ap_log_error(APLOG_MARK, APLOG_CRIT|APLOG_STARTUP, rv, NULL, |
1375 |
+ "Could not open pipe-of-death."); |
1376 |
+ return DONE; |
1377 |
+ } |
1378 |
+ return OK; |
1379 |
+} |
1380 |
+ |
1381 |
+static int itk_pre_config(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp) |
1382 |
+{ |
1383 |
+ static int restart_num = 0; |
1384 |
+ int no_detach, debug, foreground; |
1385 |
+ apr_status_t rv; |
1386 |
+ |
1387 |
+ mpm_state = AP_MPMQ_STARTING; |
1388 |
+ |
1389 |
+ debug = ap_exists_config_define("DEBUG"); |
1390 |
+ |
1391 |
+ if (debug) { |
1392 |
+ foreground = one_process = 1; |
1393 |
+ no_detach = 0; |
1394 |
+ } |
1395 |
+ else |
1396 |
+ { |
1397 |
+ no_detach = ap_exists_config_define("NO_DETACH"); |
1398 |
+ one_process = ap_exists_config_define("ONE_PROCESS"); |
1399 |
+ foreground = ap_exists_config_define("FOREGROUND"); |
1400 |
+ } |
1401 |
+ |
1402 |
+ /* sigh, want this only the second time around */ |
1403 |
+ if (restart_num++ == 1) { |
1404 |
+ is_graceful = 0; |
1405 |
+ |
1406 |
+ if (!one_process && !foreground) { |
1407 |
+ rv = apr_proc_detach(no_detach ? APR_PROC_DETACH_FOREGROUND |
1408 |
+ : APR_PROC_DETACH_DAEMONIZE); |
1409 |
+ if (rv != APR_SUCCESS) { |
1410 |
+ ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL, |
1411 |
+ "apr_proc_detach failed"); |
1412 |
+ return HTTP_INTERNAL_SERVER_ERROR; |
1413 |
+ } |
1414 |
+ } |
1415 |
+ |
1416 |
+ parent_pid = ap_my_pid = getpid(); |
1417 |
+ } |
1418 |
+ |
1419 |
+ unixd_pre_config(ptemp); |
1420 |
+ ap_listen_pre_config(); |
1421 |
+ ap_daemons_to_start = DEFAULT_START_DAEMON; |
1422 |
+ ap_daemons_min_free = DEFAULT_MIN_FREE_DAEMON; |
1423 |
+ ap_daemons_max_free = DEFAULT_MAX_FREE_DAEMON; |
1424 |
+ ap_daemons_limit = server_limit; |
1425 |
+ ap_pid_fname = DEFAULT_PIDLOG; |
1426 |
+ ap_lock_fname = DEFAULT_LOCKFILE; |
1427 |
+ ap_max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD; |
1428 |
+ ap_extended_status = 0; |
1429 |
+#ifdef AP_MPM_WANT_SET_MAX_MEM_FREE |
1430 |
+ ap_max_mem_free = APR_ALLOCATOR_MAX_FREE_UNLIMITED; |
1431 |
+#endif |
1432 |
+ |
1433 |
+ apr_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir)); |
1434 |
+ |
1435 |
+ return OK; |
1436 |
+} |
1437 |
+ |
1438 |
+static int itk_post_perdir_config(request_rec *r) |
1439 |
+{ |
1440 |
+ uid_t wanted_uid; |
1441 |
+ gid_t wanted_gid; |
1442 |
+ const char *wanted_username; |
1443 |
+ int err = 0; |
1444 |
+ |
1445 |
+ itk_server_conf *sconf = |
1446 |
+ (itk_server_conf *) ap_get_module_config(r->server->module_config, &mpm_itk_module); |
1447 |
+ |
1448 |
+ /* Enforce MaxClientsVhost. */ |
1449 |
+ if (sconf->max_clients_vhost > 0) { |
1450 |
+ int i, num_other_servers = 0; |
1451 |
+ for (i = 0; i < ap_daemons_limit; ++i) { |
1452 |
+ worker_score *ws = &ap_scoreboard_image->servers[i][0]; |
1453 |
+ if (ws->status >= SERVER_BUSY_READ && strncmp(ws->vhost, r->server->server_hostname, 31) == 0) |
1454 |
+ ++num_other_servers; |
1455 |
+ } |
1456 |
+ |
1457 |
+ if (num_other_servers > sconf->max_clients_vhost) { |
1458 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL, \ |
1459 |
+ "MaxClientsVhost reached for %s, refusing client.", |
1460 |
+ r->server->server_hostname); |
1461 |
+ return HTTP_SERVICE_UNAVAILABLE; |
1462 |
+ } |
1463 |
+ } |
1464 |
+ |
1465 |
+ itk_per_dir_conf *dconf = |
1466 |
+ (itk_per_dir_conf *) ap_get_module_config(r->per_dir_config, &mpm_itk_module); |
1467 |
+ |
1468 |
+ strncpy(ap_scoreboard_image->servers[my_child_num][0].vhost, r->server->server_hostname, 31); |
1469 |
+ ap_scoreboard_image->servers[my_child_num][0].vhost[31] = 0; |
1470 |
+ |
1471 |
+ if (dconf->nice_value != UNSET_NICE_VALUE && |
1472 |
+ setpriority(PRIO_PROCESS, 0, dconf->nice_value)) { |
1473 |
+ _DBG("setpriority(): %s", strerror(errno)); |
1474 |
+ err = 1; |
1475 |
+ } |
1476 |
+ |
1477 |
+ wanted_uid = dconf->uid; |
1478 |
+ wanted_gid = dconf->gid; |
1479 |
+ wanted_username = dconf->username; |
1480 |
+ |
1481 |
+ if (wanted_uid == -1 || wanted_gid == -1) { |
1482 |
+ wanted_uid = unixd_config.user_id; |
1483 |
+ wanted_gid = unixd_config.group_id; |
1484 |
+ wanted_username = unixd_config.user_name; |
1485 |
+ } |
1486 |
+ |
1487 |
+ if (!err && wanted_uid != -1 && wanted_gid != -1 && (getuid() != wanted_uid || getgid() != wanted_gid)) { |
1488 |
+ if (setgid(wanted_gid)) { |
1489 |
+ _DBG("setgid(%d): %s", wanted_gid, strerror(errno)); |
1490 |
+ err = 1; |
1491 |
+ } else if (initgroups(wanted_username, wanted_gid)) { |
1492 |
+ _DBG("initgroups(%s, %d): %s", wanted_username, wanted_gid, strerror(errno)); |
1493 |
+ err = 1; |
1494 |
+ } else if (setuid(wanted_uid)) { |
1495 |
+ _DBG("setuid(%d): %s", wanted_uid, strerror(errno)); |
1496 |
+ err = 1; |
1497 |
+ } |
1498 |
+ } |
1499 |
+ |
1500 |
+ /* |
1501 |
+ * Most likely a case of switching uid/gid within a persistent |
1502 |
+ * connection; the RFCs allow us to just close the connection |
1503 |
+ * at anytime, so we excercise our right. :-) |
1504 |
+ */ |
1505 |
+ if (err) { |
1506 |
+ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL, \ |
1507 |
+ "Couldn't set uid/gid/priority, closing connection."); |
1508 |
+ ap_lingering_close(r->connection); |
1509 |
+ exit(0); |
1510 |
+ } |
1511 |
+ return OK; |
1512 |
+} |
1513 |
+ |
1514 |
+static void itk_hooks(apr_pool_t *p) |
1515 |
+{ |
1516 |
+ /* The itk open_logs phase must run before the core's, or stderr |
1517 |
+ * will be redirected to a file, and the messages won't print to the |
1518 |
+ * console. |
1519 |
+ */ |
1520 |
+ static const char *const aszSucc[] = {"core.c", NULL}; |
1521 |
+ |
1522 |
+#ifdef AUX3 |
1523 |
+ (void) set42sig(); |
1524 |
+#endif |
1525 |
+ |
1526 |
+ ap_hook_open_logs(itk_open_logs, NULL, aszSucc, APR_HOOK_MIDDLE); |
1527 |
+ /* we need to set the MPM state before other pre-config hooks use MPM query |
1528 |
+ * to retrieve it, so register as REALLY_FIRST |
1529 |
+ */ |
1530 |
+ ap_hook_pre_config(itk_pre_config, NULL, NULL, APR_HOOK_REALLY_FIRST); |
1531 |
+ |
1532 |
+ /* set the uid as fast as possible, but not before merging per-dit config */ |
1533 |
+ ap_hook_header_parser(itk_post_perdir_config, NULL, NULL, APR_HOOK_REALLY_FIRST); |
1534 |
+} |
1535 |
+ |
1536 |
+static const char *set_daemons_to_start(cmd_parms *cmd, void *dummy, const char *arg) |
1537 |
+{ |
1538 |
+ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
1539 |
+ if (err != NULL) { |
1540 |
+ return err; |
1541 |
+ } |
1542 |
+ |
1543 |
+ ap_daemons_to_start = atoi(arg); |
1544 |
+ return NULL; |
1545 |
+} |
1546 |
+ |
1547 |
+static const char *set_min_free_servers(cmd_parms *cmd, void *dummy, const char *arg) |
1548 |
+{ |
1549 |
+ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
1550 |
+ if (err != NULL) { |
1551 |
+ return err; |
1552 |
+ } |
1553 |
+ |
1554 |
+ ap_daemons_min_free = atoi(arg); |
1555 |
+ if (ap_daemons_min_free <= 0) { |
1556 |
+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1557 |
+ "WARNING: detected MinSpareServers set to non-positive."); |
1558 |
+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1559 |
+ "Resetting to 1 to avoid almost certain Apache failure."); |
1560 |
+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1561 |
+ "Please read the documentation."); |
1562 |
+ ap_daemons_min_free = 1; |
1563 |
+ } |
1564 |
+ |
1565 |
+ return NULL; |
1566 |
+} |
1567 |
+ |
1568 |
+static const char *set_max_free_servers(cmd_parms *cmd, void *dummy, const char *arg) |
1569 |
+{ |
1570 |
+ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
1571 |
+ if (err != NULL) { |
1572 |
+ return err; |
1573 |
+ } |
1574 |
+ |
1575 |
+ ap_daemons_max_free = atoi(arg); |
1576 |
+ return NULL; |
1577 |
+} |
1578 |
+ |
1579 |
+static const char *set_max_clients (cmd_parms *cmd, void *dummy, const char *arg) |
1580 |
+{ |
1581 |
+ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
1582 |
+ if (err != NULL) { |
1583 |
+ return err; |
1584 |
+ } |
1585 |
+ |
1586 |
+ ap_daemons_limit = atoi(arg); |
1587 |
+ if (ap_daemons_limit > server_limit) { |
1588 |
+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1589 |
+ "WARNING: MaxClients of %d exceeds ServerLimit value " |
1590 |
+ "of %d servers,", ap_daemons_limit, server_limit); |
1591 |
+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1592 |
+ " lowering MaxClients to %d. To increase, please " |
1593 |
+ "see the ServerLimit", server_limit); |
1594 |
+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1595 |
+ " directive."); |
1596 |
+ ap_daemons_limit = server_limit; |
1597 |
+ } |
1598 |
+ else if (ap_daemons_limit < 1) { |
1599 |
+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1600 |
+ "WARNING: Require MaxClients > 0, setting to 1"); |
1601 |
+ ap_daemons_limit = 1; |
1602 |
+ } |
1603 |
+ return NULL; |
1604 |
+} |
1605 |
+ |
1606 |
+static const char *set_server_limit (cmd_parms *cmd, void *dummy, const char *arg) |
1607 |
+{ |
1608 |
+ int tmp_server_limit; |
1609 |
+ |
1610 |
+ const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); |
1611 |
+ if (err != NULL) { |
1612 |
+ return err; |
1613 |
+ } |
1614 |
+ |
1615 |
+ tmp_server_limit = atoi(arg); |
1616 |
+ /* you cannot change ServerLimit across a restart; ignore |
1617 |
+ * any such attempts |
1618 |
+ */ |
1619 |
+ if (first_server_limit && |
1620 |
+ tmp_server_limit != server_limit) { |
1621 |
+ /* how do we log a message? the error log is a bit bucket at this |
1622 |
+ * point; we'll just have to set a flag so that ap_mpm_run() |
1623 |
+ * logs a warning later |
1624 |
+ */ |
1625 |
+ changed_limit_at_restart = 1; |
1626 |
+ return NULL; |
1627 |
+ } |
1628 |
+ server_limit = tmp_server_limit; |
1629 |
+ |
1630 |
+ if (server_limit > MAX_SERVER_LIMIT) { |
1631 |
+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1632 |
+ "WARNING: ServerLimit of %d exceeds compile time limit " |
1633 |
+ "of %d servers,", server_limit, MAX_SERVER_LIMIT); |
1634 |
+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1635 |
+ " lowering ServerLimit to %d.", MAX_SERVER_LIMIT); |
1636 |
+ server_limit = MAX_SERVER_LIMIT; |
1637 |
+ } |
1638 |
+ else if (server_limit < 1) { |
1639 |
+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1640 |
+ "WARNING: Require ServerLimit > 0, setting to 1"); |
1641 |
+ server_limit = 1; |
1642 |
+ } |
1643 |
+ return NULL; |
1644 |
+} |
1645 |
+ |
1646 |
+static const char *assign_user_id (cmd_parms *cmd, void *ptr, const char *user_name, const char *group_name) |
1647 |
+{ |
1648 |
+ itk_per_dir_conf *dconf = (itk_per_dir_conf *) ptr; |
1649 |
+ dconf->username = apr_pstrdup(cmd->pool, user_name); |
1650 |
+ dconf->uid = ap_uname2id(user_name); |
1651 |
+ dconf->gid = ap_gname2id(group_name); |
1652 |
+ return NULL; |
1653 |
+} |
1654 |
+ |
1655 |
+static const char *set_max_clients_vhost (cmd_parms *cmd, void *dummy, const char *arg) |
1656 |
+{ |
1657 |
+ itk_server_conf *sconf = |
1658 |
+ (itk_server_conf *) ap_get_module_config(cmd->server->module_config, &mpm_itk_module); |
1659 |
+ sconf->max_clients_vhost = atoi(arg); |
1660 |
+ return NULL; |
1661 |
+} |
1662 |
+ |
1663 |
+static const char *set_nice_value (cmd_parms *cmd, void *ptr, const char *arg) |
1664 |
+{ |
1665 |
+ itk_per_dir_conf *dconf = (itk_per_dir_conf *) ptr; |
1666 |
+ int nice_value = atoi(arg); |
1667 |
+ |
1668 |
+ if (nice_value < -20) { |
1669 |
+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1670 |
+ "WARNING: NiceValue of %d is below -20, increasing NiceValue to -20.", |
1671 |
+ nice_value); |
1672 |
+ nice_value = -20; |
1673 |
+ } |
1674 |
+ else if (nice_value > 19) { |
1675 |
+ ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, |
1676 |
+ "WARNING: NiceValue of %d is above 19, lowering NiceValue to 19.", |
1677 |
+ nice_value); |
1678 |
+ nice_value = 19; |
1679 |
+ } |
1680 |
+ dconf->nice_value = nice_value; |
1681 |
+ return NULL; |
1682 |
+} |
1683 |
+ |
1684 |
+static const command_rec itk_cmds[] = { |
1685 |
+UNIX_DAEMON_COMMANDS, |
1686 |
+LISTEN_COMMANDS, |
1687 |
+AP_INIT_TAKE1("StartServers", set_daemons_to_start, NULL, RSRC_CONF, |
1688 |
+ "Number of child processes launched at server startup"), |
1689 |
+AP_INIT_TAKE1("MinSpareServers", set_min_free_servers, NULL, RSRC_CONF, |
1690 |
+ "Minimum number of idle children, to handle request spikes"), |
1691 |
+AP_INIT_TAKE1("MaxSpareServers", set_max_free_servers, NULL, RSRC_CONF, |
1692 |
+ "Maximum number of idle children"), |
1693 |
+AP_INIT_TAKE1("MaxClients", set_max_clients, NULL, RSRC_CONF, |
1694 |
+ "Maximum number of children alive at the same time"), |
1695 |
+AP_INIT_TAKE1("ServerLimit", set_server_limit, NULL, RSRC_CONF, |
1696 |
+ "Maximum value of MaxClients for this run of Apache"), |
1697 |
+AP_INIT_TAKE2("AssignUserID", assign_user_id, NULL, RSRC_CONF|ACCESS_CONF, |
1698 |
+ "Tie a virtual host to a specific child process."), |
1699 |
+AP_INIT_TAKE1("MaxClientsVHost", set_max_clients_vhost, NULL, RSRC_CONF, |
1700 |
+ "Maximum number of children alive at the same time for this virtual host."), |
1701 |
+AP_INIT_TAKE1("NiceValue", set_nice_value, NULL, RSRC_CONF|ACCESS_CONF, |
1702 |
+ "Set nice value for the given vhost, from -20 (highest priority) to 19 (lowest priority)."), |
1703 |
+AP_GRACEFUL_SHUTDOWN_TIMEOUT_COMMAND, |
1704 |
+{ NULL } |
1705 |
+}; |
1706 |
+ |
1707 |
+/* == allocate a private per-dir config structure == */ |
1708 |
+static void *itk_create_dir_config(apr_pool_t *p, char *dummy) |
1709 |
+{ |
1710 |
+ itk_per_dir_conf *c = (itk_per_dir_conf *) |
1711 |
+ apr_pcalloc(p, sizeof(itk_per_dir_conf)); |
1712 |
+ c->uid = c->gid = -1; |
1713 |
+ c->nice_value = UNSET_NICE_VALUE; |
1714 |
+ return c; |
1715 |
+} |
1716 |
+ |
1717 |
+/* == merge the parent per-dir config structure into ours == */ |
1718 |
+static void *itk_merge_dir_config(apr_pool_t *p, void *parent_ptr, void *child_ptr) |
1719 |
+{ |
1720 |
+ itk_per_dir_conf *c = (itk_per_dir_conf *) |
1721 |
+ apr_pcalloc(p, sizeof(itk_per_dir_conf)); |
1722 |
+ itk_per_dir_conf *parent = (itk_per_dir_conf *) parent_ptr; |
1723 |
+ itk_per_dir_conf *child = (itk_per_dir_conf *) child_ptr; |
1724 |
+ |
1725 |
+ if (child->username != NULL) { |
1726 |
+ c->username = apr_pstrdup(p, child->username); |
1727 |
+ c->uid = child->uid; |
1728 |
+ c->gid = child->gid; |
1729 |
+ } else if (parent->username != NULL) { |
1730 |
+ c->username = apr_pstrdup(p, parent->username); |
1731 |
+ c->uid = parent->uid; |
1732 |
+ c->gid = parent->gid; |
1733 |
+ } |
1734 |
+ if (child->nice_value != UNSET_NICE_VALUE) { |
1735 |
+ c->nice_value = child->nice_value; |
1736 |
+ } else { |
1737 |
+ c->nice_value = parent->nice_value; |
1738 |
+ } |
1739 |
+ return c; |
1740 |
+} |
1741 |
+ |
1742 |
+/* == allocate a private server config structure == */ |
1743 |
+static void *itk_create_server_config(apr_pool_t *p, server_rec *s) |
1744 |
+{ |
1745 |
+ itk_server_conf *c = (itk_server_conf *) |
1746 |
+ apr_pcalloc(p, sizeof(itk_server_conf)); |
1747 |
+ c->max_clients_vhost = -1; |
1748 |
+ return c; |
1749 |
+} |
1750 |
+ |
1751 |
+module AP_MODULE_DECLARE_DATA mpm_itk_module = { |
1752 |
+ MPM20_MODULE_STUFF, |
1753 |
+ ap_mpm_rewrite_args, /* hook to run before apache parses args */ |
1754 |
+ itk_create_dir_config, /* create per-directory config structure */ |
1755 |
+ itk_merge_dir_config, /* merge per-directory config structures */ |
1756 |
+ itk_create_server_config, /* create per-server config structure */ |
1757 |
+ NULL, /* merge per-server config structures */ |
1758 |
+ itk_cmds, /* command apr_table_t */ |
1759 |
+ itk_hooks, /* register hooks */ |
1760 |
+}; |
1761 |
unchanged: |
1762 |
--- server/mpm/experimental/itk/mpm.h 2009-03-17 21:39:03.000000000 +0100 |
1763 |
+++ server/mpm/experimental/itk/mpm.h 2009-03-21 13:02:33.000000000 +0100 |
1764 |
@@ -0,0 +1,68 @@ |
1765 |
+/* Licensed to the Apache Software Foundation (ASF) under one or more |
1766 |
+ * contributor license agreements. See the NOTICE file distributed with |
1767 |
+ * this work for additional information regarding copyright ownership. |
1768 |
+ * The ASF licenses this file to You under the Apache License, Version 2.0 |
1769 |
+ * (the "License"); you may not use this file except in compliance with |
1770 |
+ * the License. You may obtain a copy of the License at |
1771 |
+ * |
1772 |
+ * http://www.apache.org/licenses/LICENSE-2.0 |
1773 |
+ * |
1774 |
+ * Unless required by applicable law or agreed to in writing, software |
1775 |
+ * distributed under the License is distributed on an "AS IS" BASIS, |
1776 |
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
1777 |
+ * See the License for the specific language governing permissions and |
1778 |
+ * limitations under the License. |
1779 |
+ * |
1780 |
+ * Portions copyright 2005-2009 Steinar H. Gunderson <sgunderson@bigfoot.com>. |
1781 |
+ * Licensed under the same terms as the rest of Apache. |
1782 |
+ * |
1783 |
+ * Portions copyright 2008 Knut Auvor Grythe <knut@auvor.no>. |
1784 |
+ * Licensed under the same terms as the rest of Apache. |
1785 |
+ */ |
1786 |
+ |
1787 |
+/** |
1788 |
+ * @file itk/mpm.h |
1789 |
+ * @brief ITK MPM (setuid per-vhost, no threads) |
1790 |
+ * |
1791 |
+ * @defgroup APACHE_MPM_ITK Apache ITK |
1792 |
+ * @ingroup APACHE_MPM APACHE_OS_UNIX |
1793 |
+ * @{ |
1794 |
+ */ |
1795 |
+ |
1796 |
+#include "httpd.h" |
1797 |
+#include "mpm_default.h" |
1798 |
+#include "scoreboard.h" |
1799 |
+#include "unixd.h" |
1800 |
+ |
1801 |
+#ifndef APACHE_MPM_ITK_H |
1802 |
+#define APACHE_MPM_ITK_H |
1803 |
+ |
1804 |
+#define ITK_MPM |
1805 |
+ |
1806 |
+#define MPM_NAME "ITK" |
1807 |
+ |
1808 |
+#define AP_MPM_WANT_RECLAIM_CHILD_PROCESSES |
1809 |
+#define AP_MPM_WANT_WAIT_OR_TIMEOUT |
1810 |
+#define AP_MPM_WANT_PROCESS_CHILD_STATUS |
1811 |
+#define AP_MPM_WANT_SET_PIDFILE |
1812 |
+#define AP_MPM_WANT_SET_SCOREBOARD |
1813 |
+#define AP_MPM_WANT_SET_LOCKFILE |
1814 |
+#define AP_MPM_WANT_SET_MAX_REQUESTS |
1815 |
+#define AP_MPM_WANT_SET_COREDUMPDIR |
1816 |
+#define AP_MPM_WANT_SET_ACCEPT_LOCK_MECH |
1817 |
+#define AP_MPM_WANT_SIGNAL_SERVER |
1818 |
+#define AP_MPM_WANT_SET_MAX_MEM_FREE |
1819 |
+#define AP_MPM_WANT_FATAL_SIGNAL_HANDLER |
1820 |
+#define AP_MPM_WANT_SET_GRACEFUL_SHUTDOWN |
1821 |
+#define AP_MPM_DISABLE_NAGLE_ACCEPTED_SOCK |
1822 |
+ |
1823 |
+#define AP_MPM_USES_POD 1 |
1824 |
+#define MPM_CHILD_PID(i) (ap_scoreboard_image->parent[i].pid) |
1825 |
+#define MPM_NOTE_CHILD_KILLED(i) (MPM_CHILD_PID(i) = 0) |
1826 |
+#define MPM_ACCEPT_FUNC unixd_accept |
1827 |
+ |
1828 |
+extern int ap_threads_per_child; |
1829 |
+extern int ap_max_daemons_limit; |
1830 |
+extern server_rec *ap_server_conf; |
1831 |
+#endif /* APACHE_MPM_ITK_H */ |
1832 |
+/** @} */ |
1833 |
unchanged: |
1834 |
--- server/mpm/experimental/itk/mpm_default.h 2009-03-17 21:39:03.000000000 +0100 |
1835 |
+++ server/mpm/experimental/itk/mpm_default.h 2009-03-21 13:02:33.000000000 +0100 |
1836 |
@@ -0,0 +1,80 @@ |
1837 |
+/* Licensed to the Apache Software Foundation (ASF) under one or more |
1838 |
+ * contributor license agreements. See the NOTICE file distributed with |
1839 |
+ * this work for additional information regarding copyright ownership. |
1840 |
+ * The ASF licenses this file to You under the Apache License, Version 2.0 |
1841 |
+ * (the "License"); you may not use this file except in compliance with |
1842 |
+ * the License. You may obtain a copy of the License at |
1843 |
+ * |
1844 |
+ * http://www.apache.org/licenses/LICENSE-2.0 |
1845 |
+ * |
1846 |
+ * Unless required by applicable law or agreed to in writing, software |
1847 |
+ * distributed under the License is distributed on an "AS IS" BASIS, |
1848 |
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
1849 |
+ * See the License for the specific language governing permissions and |
1850 |
+ * limitations under the License. |
1851 |
+ * |
1852 |
+ * Portions copyright 2005-2009 Steinar H. Gunderson <sgunderson@bigfoot.com>. |
1853 |
+ * Licensed under the same terms as the rest of Apache. |
1854 |
+ * |
1855 |
+ * Portions copyright 2008 Knut Auvor Grythe <knut@auvor.no>. |
1856 |
+ * Licensed under the same terms as the rest of Apache. |
1857 |
+ */ |
1858 |
+ |
1859 |
+/** |
1860 |
+ * @file itk/mpm_default.h |
1861 |
+ * @brief ITK MPM defaults |
1862 |
+ * |
1863 |
+ * @addtogroup APACHE_MPM_ITK |
1864 |
+ * @{ |
1865 |
+ */ |
1866 |
+ |
1867 |
+#ifndef APACHE_MPM_DEFAULT_H |
1868 |
+#define APACHE_MPM_DEFAULT_H |
1869 |
+ |
1870 |
+/* Number of servers to spawn off by default --- also, if fewer than |
1871 |
+ * this free when the caretaker checks, it will spawn more. |
1872 |
+ */ |
1873 |
+#ifndef DEFAULT_START_DAEMON |
1874 |
+#define DEFAULT_START_DAEMON 5 |
1875 |
+#endif |
1876 |
+ |
1877 |
+/* Maximum number of *free* server processes --- more than this, and |
1878 |
+ * they will die off. |
1879 |
+ */ |
1880 |
+ |
1881 |
+#ifndef DEFAULT_MAX_FREE_DAEMON |
1882 |
+#define DEFAULT_MAX_FREE_DAEMON 10 |
1883 |
+#endif |
1884 |
+ |
1885 |
+/* Minimum --- fewer than this, and more will be created */ |
1886 |
+ |
1887 |
+#ifndef DEFAULT_MIN_FREE_DAEMON |
1888 |
+#define DEFAULT_MIN_FREE_DAEMON 5 |
1889 |
+#endif |
1890 |
+ |
1891 |
+/* File used for accept locking, when we use a file */ |
1892 |
+#ifndef DEFAULT_LOCKFILE |
1893 |
+#define DEFAULT_LOCKFILE DEFAULT_REL_RUNTIMEDIR "/accept.lock" |
1894 |
+#endif |
1895 |
+ |
1896 |
+/* Where the main/parent process's pid is logged */ |
1897 |
+#ifndef DEFAULT_PIDLOG |
1898 |
+#define DEFAULT_PIDLOG DEFAULT_REL_RUNTIMEDIR "/httpd.pid" |
1899 |
+#endif |
1900 |
+ |
1901 |
+/* |
1902 |
+ * Interval, in microseconds, between scoreboard maintenance. |
1903 |
+ */ |
1904 |
+#ifndef SCOREBOARD_MAINTENANCE_INTERVAL |
1905 |
+#define SCOREBOARD_MAINTENANCE_INTERVAL 1000000 |
1906 |
+#endif |
1907 |
+ |
1908 |
+/* Number of requests to try to handle in a single process. If <= 0, |
1909 |
+ * the children don't die off. |
1910 |
+ */ |
1911 |
+#ifndef DEFAULT_MAX_REQUESTS_PER_CHILD |
1912 |
+#define DEFAULT_MAX_REQUESTS_PER_CHILD 10000 |
1913 |
+#endif |
1914 |
+ |
1915 |
+#endif /* AP_MPM_DEFAULT_H */ |
1916 |
+/** @} */ |
1917 |
unchanged: |
1918 |
--- orig/server/mpm/config.m4 2007-01-29 21:30:26.000000000 +0100 |
1919 |
+++ server/mpm/config.m4 2007-01-29 21:30:35.000000000 +0100 |
1920 |
@@ -1,7 +1,7 @@ |
1921 |
AC_MSG_CHECKING(which MPM to use) |
1922 |
AC_ARG_WITH(mpm, |
1923 |
APACHE_HELP_STRING(--with-mpm=MPM,Choose the process model for Apache to use. |
1924 |
- MPM={beos|event|worker|prefork|mpmt_os2}),[ |
1925 |
+ MPM={beos|event|worker|prefork|mpmt_os2|itk}),[ |
1926 |
APACHE_MPM=$withval |
1927 |
],[ |
1928 |
if test "x$APACHE_MPM" = "x"; then |
1929 |
@@ -23,7 +23,7 @@ |
1930 |
|
1931 |
ap_mpm_is_experimental () |
1932 |
{ |
1933 |
- if test "$apache_cv_mpm" = "event" ; then |
1934 |
+ if test "$apache_cv_mpm" = "event" -o "$apache_cv_mpm" = "itk" ; then |
1935 |
return 0 |
1936 |
else |
1937 |
return 1 |
1938 |
unchanged: |
1939 |
--- server/mpm/experimental/itk/config.m4 2007-01-29 21:03:51.000000000 +0100 |
1940 |
+++ server/mpm/experimental/itk/config.m4 2007-01-29 21:03:57.000000000 +0100 |
1941 |
@@ -1,3 +1,3 @@ |
1942 |
if test "$MPM_NAME" = "itk" ; then |
1943 |
- APACHE_FAST_OUTPUT(server/mpm/$MPM_NAME/Makefile) |
1944 |
+ APACHE_FAST_OUTPUT(server/mpm/$MPM_SUBDIR_NAME/Makefile) |
1945 |
fi |
1946 |
unchanged: |
1947 |
--- include/http_request.h 2009-03-21 13:03:31.000000000 +0100 |
1948 |
+++ include/http_request.h 2009-03-21 13:03:41.000000000 +0100 |
1949 |
@@ -12,6 +12,12 @@ |
1950 |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
1951 |
* See the License for the specific language governing permissions and |
1952 |
* limitations under the License. |
1953 |
+ * |
1954 |
+ * Portions copyright 2005-2009 Steinar H. Gunderson <sgunderson@bigfoot.com>. |
1955 |
+ * Licensed under the same terms as the rest of Apache. |
1956 |
+ * |
1957 |
+ * Portions copyright 2008 Knut Auvor Grythe <knut@auvor.no>. |
1958 |
+ * Licensed under the same terms as the rest of Apache. |
1959 |
*/ |
1960 |
|
1961 |
/** |
1962 |
@@ -350,6 +356,15 @@ |
1963 |
*/ |
1964 |
AP_DECLARE_HOOK(void,insert_filter,(request_rec *r)) |
1965 |
|
1966 |
+/** |
1967 |
+ * This hook allows modules to affect the request immediately after the |
1968 |
+ * per-directory configuration for the request has been generated. This allows |
1969 |
+ * modules to make decisions based upon the current directory configuration |
1970 |
+ * @param r The current request |
1971 |
+ * @return OK or DECLINED |
1972 |
+ */ |
1973 |
+AP_DECLARE_HOOK(int,post_perdir_config,(request_rec *r)) |
1974 |
+ |
1975 |
AP_DECLARE(int) ap_location_walk(request_rec *r); |
1976 |
AP_DECLARE(int) ap_directory_walk(request_rec *r); |
1977 |
AP_DECLARE(int) ap_file_walk(request_rec *r); |
1978 |
unchanged: |
1979 |
--- server/request.c 2009-03-21 13:03:13.000000000 +0100 |
1980 |
+++ server/request.c 2009-03-21 13:03:41.000000000 +0100 |
1981 |
@@ -12,6 +12,12 @@ |
1982 |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
1983 |
* See the License for the specific language governing permissions and |
1984 |
* limitations under the License. |
1985 |
+ * |
1986 |
+ * Portions copyright 2005-2009 Steinar H. Gunderson <sgunderson@bigfoot.com>. |
1987 |
+ * Licensed under the same terms as the rest of Apache. |
1988 |
+ * |
1989 |
+ * Portions copyright 2008 Knut Auvor Grythe <knut@auvor.no>. |
1990 |
+ * Licensed under the same terms as the rest of Apache. |
1991 |
*/ |
1992 |
|
1993 |
/* |
1994 |
@@ -61,6 +67,7 @@ |
1995 |
APR_HOOK_LINK(auth_checker) |
1996 |
APR_HOOK_LINK(insert_filter) |
1997 |
APR_HOOK_LINK(create_request) |
1998 |
+ APR_HOOK_LINK(post_perdir_config) |
1999 |
) |
2000 |
|
2001 |
AP_IMPLEMENT_HOOK_RUN_FIRST(int,translate_name, |
2002 |
@@ -80,6 +87,8 @@ |
2003 |
AP_IMPLEMENT_HOOK_VOID(insert_filter, (request_rec *r), (r)) |
2004 |
AP_IMPLEMENT_HOOK_RUN_ALL(int, create_request, |
2005 |
(request_rec *r), (r), OK, DECLINED) |
2006 |
+AP_IMPLEMENT_HOOK_RUN_ALL(int,post_perdir_config, |
2007 |
+ (request_rec *r), (r), OK, DECLINED) |
2008 |
|
2009 |
|
2010 |
static int decl_die(int status, char *phase, request_rec *r) |
2011 |
@@ -158,6 +167,13 @@ |
2012 |
return access_status; |
2013 |
} |
2014 |
|
2015 |
+ /* First chance to handle the request after per-directory configuration is |
2016 |
+ * generated |
2017 |
+ */ |
2018 |
+ if ((access_status = ap_run_post_perdir_config(r))) { |
2019 |
+ return access_status; |
2020 |
+ } |
2021 |
+ |
2022 |
/* Only on the main request! */ |
2023 |
if (r->main == NULL) { |
2024 |
if ((access_status = ap_run_header_parser(r))) { |
2025 |
unchanged: |
2026 |
--- server/mpm/config.m4 2009-04-14 23:26:41.000000000 +0200 |
2027 |
+++ server/mpm/config.m4 2009-04-14 23:28:03.000000000 +0200 |
2028 |
@@ -66,6 +66,11 @@ |
2029 |
else |
2030 |
MPM_SUBDIR_NAME=$MPM_NAME |
2031 |
fi |
2032 |
+ |
2033 |
+if test "$apache_cv_mpm" = "itk" ; then |
2034 |
+ AC_CHECK_LIB(cap, cap_init) |
2035 |
+fi |
2036 |
+ |
2037 |
MPM_DIR=server/mpm/$MPM_SUBDIR_NAME |
2038 |
MPM_LIB=$MPM_DIR/lib${MPM_NAME}.la |
2039 |
|