a812b025d139f465a31c76fc02ed162ed5271b03nd

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe

eee895b02dd7867622afd0a8a94f2efc7de9c618wrowe

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "apr.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "apr_portable.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "apr_strings.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "apr_thread_proc.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "apr_signal.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#define APR_WANT_STDIO

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#define APR_WANT_STRFUNC

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe#include "apr_want.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#if APR_HAVE_UNISTD_H

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include <unistd.h>

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#endif

c1c0628ca9788908a5fc7502d04a89c348b75ee6wrowe#if APR_HAVE_SYS_TYPES_H

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include <sys/types.h>

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#endif

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#define CORE_PRIVATE

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe#include "ap_config.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "httpd.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "mpm_default.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "http_main.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "http_log.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "http_config.h"

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe#include "http_core.h" /* for get_remote_host */

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "http_connection.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "scoreboard.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "ap_mpm.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "unixd.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "mpm_common.h"

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe#include "ap_listen.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include "ap_mmn.h"

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#ifdef HAVE_BSTRING_H

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#include <bstring.h> /* for IRIX, FD_SET calls bzero() */

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#endif

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#ifdef HAVE_TIME_H

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe#include <time.h>

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe#endif

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe

9621e4c4056383e4a2b844b14687bae500b33a82wrowe#include <signal.h>

9621e4c4056383e4a2b844b14687bae500b33a82wrowe#include <sys/times.h>

9621e4c4056383e4a2b844b14687bae500b33a82wrowe

9621e4c4056383e4a2b844b14687bae500b33a82wrowe

9621e4c4056383e4a2b844b14687bae500b33a82wroweint ap_threads_per_child=0; /* Worker threads per child */

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowestatic int ap_max_requests_per_child=0;

4c67ef499845a08771e81254ce6eb2324a160bc7wrowestatic const char *ap_pid_fname=NULL;

4c67ef499845a08771e81254ce6eb2324a160bc7wrowestatic apr_lock_t *accept_lock;

4c67ef499845a08771e81254ce6eb2324a160bc7wrowestatic const char *ap_lock_fname;

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowestatic int ap_daemons_to_start=0;

4c67ef499845a08771e81254ce6eb2324a160bc7wrowestatic int ap_daemons_min_free=0;

4c67ef499845a08771e81254ce6eb2324a160bc7wrowestatic int ap_daemons_max_free=0;

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowestatic int ap_daemons_limit=0;

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wroweint ap_max_daemons_limit = -1;

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wroweserver_rec *ap_server_conf;

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowechar ap_coredump_dir[MAX_STRING_LEN];

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe

41c38e78e8e5dc73544571cc2b749d40869e84fawrowestatic apr_socket_t *sd;

41c38e78e8e5dc73544571cc2b749d40869e84fawrowestatic fd_set listenfds;

41c38e78e8e5dc73544571cc2b749d40869e84fawrowestatic int listenmaxfd;

41c38e78e8e5dc73544571cc2b749d40869e84fawrowe

eee895b02dd7867622afd0a8a94f2efc7de9c618wrowe

4415d997ac73262e513c0a571bd5be4f609040bawrowestatic int one_process = 0;

4415d997ac73262e513c0a571bd5be4f609040bawrowe

4415d997ac73262e513c0a571bd5be4f609040bawrowestatic apr_pool_t *pconf; /* Pool for config stuff */

4415d997ac73262e513c0a571bd5be4f609040bawrowestatic apr_pool_t *pchild; /* Pool for httpd child stuff */

4415d997ac73262e513c0a571bd5be4f609040bawrowe

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowestatic pid_t ap_my_pid; /* it seems silly to call getpid all the time */

eee895b02dd7867622afd0a8a94f2efc7de9c618wrowe#ifndef MULTITHREAD

eee895b02dd7867622afd0a8a94f2efc7de9c618wrowestatic int my_child_num;

4415d997ac73262e513c0a571bd5be4f609040bawrowe#endif

4415d997ac73262e513c0a571bd5be4f609040bawrowe

4415d997ac73262e513c0a571bd5be4f609040bawrowe#ifdef TPF

4415d997ac73262e513c0a571bd5be4f609040bawroweint tpf_child = 0;

4415d997ac73262e513c0a571bd5be4f609040bawrowechar tpf_server_name[INETD_SERVNAME_LENGTH+1];

4415d997ac73262e513c0a571bd5be4f609040bawrowe#endif /* TPF */

eee895b02dd7867622afd0a8a94f2efc7de9c618wrowe

4415d997ac73262e513c0a571bd5be4f609040bawrowe#ifdef GPROF

4415d997ac73262e513c0a571bd5be4f609040bawrowestatic void chdir_for_gprof(void)

4415d997ac73262e513c0a571bd5be4f609040bawrowe{

4415d997ac73262e513c0a571bd5be4f609040bawrowe core_server_config *sconf =

4415d997ac73262e513c0a571bd5be4f609040bawrowe ap_get_module_config(ap_server_conf->module_config, &core_module);

4415d997ac73262e513c0a571bd5be4f609040bawrowe char *dir = sconf->gprof_dir;

eee895b02dd7867622afd0a8a94f2efc7de9c618wrowe const char *use_dir;

4415d997ac73262e513c0a571bd5be4f609040bawrowe

4415d997ac73262e513c0a571bd5be4f609040bawrowe if(dir) {

4415d997ac73262e513c0a571bd5be4f609040bawrowe apr_status_t res;

4415d997ac73262e513c0a571bd5be4f609040bawrowe char buf[512];

4415d997ac73262e513c0a571bd5be4f609040bawrowe int len = strlen(sconf->gprof_dir) - 1;

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe if(*(dir + len) == '%') {

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe dir[len] = '\0';

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe apr_snprintf(buf, sizeof(buf), "%sgprof.%d", dir, (int)getpid());

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding use_dir = ap_server_root_relative(pconf, buf[0] ? buf : dir);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding res = apr_dir_make(use_dir, 0755, pconf);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if(res != APR_SUCCESS && !APR_STATUS_IS_EEXIST(res)) {

00211b036b78699ace57a6d800a52e6c2d57652fnd ap_log_error(APLOG_MARK, APLOG_ERR, errno, ap_server_conf,

a812b025d139f465a31c76fc02ed162ed5271b03nd "gprof: error creating directory %s", dir);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

00211b036b78699ace57a6d800a52e6c2d57652fnd }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard else {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard use_dir = ap_server_root_relative(pconf, "logs");

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard chdir(dir);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard}

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#else

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#define chdir_for_gprof()

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#endif

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#define ap_check_signals()

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardstatic void clean_child_exit(int code) __attribute__ ((noreturn));

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardstatic void clean_child_exit(int code)

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq{

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq if (pchild) {

a812b025d139f465a31c76fc02ed162ed5271b03nd apr_pool_destroy(pchild);

a812b025d139f465a31c76fc02ed162ed5271b03nd }

a812b025d139f465a31c76fc02ed162ed5271b03nd ap_scoreboard_image->servers[my_child_num][0].life_status = SB_WORKING;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq chdir_for_gprof();

a812b025d139f465a31c76fc02ed162ed5271b03nd exit(code);

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq}

a812b025d139f465a31c76fc02ed162ed5271b03nd

a812b025d139f465a31c76fc02ed162ed5271b03ndstatic void expand_lock_fname(apr_pool_t *p)

a812b025d139f465a31c76fc02ed162ed5271b03nd{

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq /* XXXX possibly bogus cast */

a812b025d139f465a31c76fc02ed162ed5271b03nd ap_lock_fname = apr_psprintf(p, "%s.%lu",

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq ap_server_root_relative(p, ap_lock_fname), (unsigned long)getpid());

a812b025d139f465a31c76fc02ed162ed5271b03nd}

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic void accept_mutex_child_init(apr_pool_t *p)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding{

00211b036b78699ace57a6d800a52e6c2d57652fnd apr_status_t rv;

00211b036b78699ace57a6d800a52e6c2d57652fnd

00211b036b78699ace57a6d800a52e6c2d57652fnd rv = apr_lock_child_init(&accept_lock, ap_lock_fname, p);

00211b036b78699ace57a6d800a52e6c2d57652fnd if (rv) {

00211b036b78699ace57a6d800a52e6c2d57652fnd ap_log_error(APLOG_MARK, APLOG_EMERG, rv, NULL,

00211b036b78699ace57a6d800a52e6c2d57652fnd "couldn't do child init for accept mutex");

00211b036b78699ace57a6d800a52e6c2d57652fnd clean_child_exit(APEXIT_CHILDINIT);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

50b2d068ddf98cf75622a0020cd143d379d1b235jfclere}

50b2d068ddf98cf75622a0020cd143d379d1b235jfclere

50b2d068ddf98cf75622a0020cd143d379d1b235jfclerestatic void accept_mutex_init(apr_pool_t *p)

50b2d068ddf98cf75622a0020cd143d379d1b235jfclere{

00211b036b78699ace57a6d800a52e6c2d57652fnd apr_status_t rv;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard expand_lock_fname(p);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding rv = apr_lock_create(&accept_lock, APR_MUTEX, APR_CROSS_PROCESS, ap_lock_fname, p);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (rv) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_EMERG, rv, NULL, "couldn't create accept mutex");

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding exit(APEXIT_INIT);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic void accept_mutex_on(void)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_status_t rv = apr_lock_acquire(accept_lock);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (rv != APR_SUCCESS) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_EMERG, rv, NULL, "couldn't grab the accept mutex");

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding exit(APEXIT_CHILDFATAL);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic void accept_mutex_off(void)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_status_t rv = apr_lock_release(accept_lock);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (rv != APR_SUCCESS) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_EMERG, rv, NULL, "couldn't release the accept mutex");

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding exit(APEXIT_CHILDFATAL);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq}

a812b025d139f465a31c76fc02ed162ed5271b03nd

16d38ac65d7e54cd44eeda7b23f84ee68b35094ewrowe#ifdef SINGLE_LISTEN_UNSERIALIZED_ACCEPT

16d38ac65d7e54cd44eeda7b23f84ee68b35094ewrowe#define SAFE_ACCEPT(stmt) do {if (ap_listeners->next) {stmt;}} while(0)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#else

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#define SAFE_ACCEPT(stmt) do {stmt;} while(0)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#endif

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardAP_DECLARE(apr_status_t) ap_mpm_query(int query_code, int *result)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard{

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard switch(query_code){

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard case AP_MPMQ_MAX_DAEMONS:

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard *result = ap_daemons_limit;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard return APR_SUCCESS;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard case AP_MPMQ_IS_THREADED:

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding *result = AP_MPMQ_NOT_SUPPORTED;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return APR_SUCCESS;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding case AP_MPMQ_IS_FORKED:

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding *result = AP_MPMQ_DYNAMIC;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard return APR_SUCCESS;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard case AP_MPMQ_HARD_LIMIT_DAEMONS:

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard *result = HARD_SERVER_LIMIT;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard return APR_SUCCESS;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard case AP_MPMQ_HARD_LIMIT_THREADS:

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard *result = HARD_THREAD_LIMIT;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq return APR_SUCCESS;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq case AP_MPMQ_MAX_THREADS:

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq *result = 0;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq return APR_SUCCESS;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq }

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq return APR_ENOTIMPL;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq}

a812b025d139f465a31c76fc02ed162ed5271b03nd

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq#if defined(NEED_WAITPID)

33cb45dc8c5106018b7c2f6ae42478b109423e0eniqint reap_children(apr_wait_t *status)

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding int n, pid;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding for (n = 0; n < ap_max_daemons_limit; ++n) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_sync_scoreboard_image();

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (ap_scoreboard_image->servers[n][0].status != SERVER_DEAD &&

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding kill((pid = ap_scoreboard_image->parent[n].pid), 0) == -1) {

134330b92fbc39045b7e56654f4c252fb7c53803nd ap_update_child_status(AP_CHILD_THREAD_FROM_ID(n), SERVER_DEAD, NULL);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* just mark it as having a successful exit status */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding memset(status, 0, sizeof(apr_wait_t));

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return(pid);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

134330b92fbc39045b7e56654f4c252fb7c53803nd return 0;

a812b025d139f465a31c76fc02ed162ed5271b03nd}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardstatic void sig_coredump(int sig)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding chdir(ap_coredump_dir);

a812b025d139f465a31c76fc02ed162ed5271b03nd apr_signal(sig, SIG_DFL);

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq kill(getpid(), sig);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* At this point we've got sig blocked, because we're still inside

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard}

11c3b5180e1de6776035320b012a28bb146e7b46chuck

22d348febc3c258df246ac93e37945398dbf0348ianh

1ccd992d37d62c8cb2056126f2234f64ec189bfddougmstatic void just_die(int sig)

a812b025d139f465a31c76fc02ed162ed5271b03nd{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding clean_child_exit(0);

1d7f1b96b49dafbd6cb414fb709cb85de2686a72chuck}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardstatic void please_die_gracefully(int sig)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding{

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq /* clean_child_exit(0); */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_scoreboard_image->servers[my_child_num][0].life_status = SB_IDLE_DIE;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (sig == SIGHUP) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding (void) ap_update_child_status(AP_CHILD_THREAD_FROM_ID(my_child_num),

9b3001f2097437c3c605d29e353fda5131b9952bminfrin SERVER_GRACEFUL, (request_rec *) NULL);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe }

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe else {

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe (void) ap_update_child_status(AP_CHILD_THREAD_FROM_ID(my_child_num),

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe SERVER_IDLE_KILL, (request_rec *) NULL);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe }

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe}

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardstatic int volatile shutdown_pending;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardstatic int volatile restart_pending;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardstatic int volatile is_graceful;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwroweap_generation_t volatile ap_my_generation=0;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowestatic void sig_term(int sig)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe{

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (shutdown_pending == 1) {

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe /* Um, is this _probably_ not an error, if the user has

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe return;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe }

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe shutdown_pending = 1;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe}

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowestatic void restart(int sig)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe{

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (restart_pending == 1) {

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe /* Probably not an error - don't bother reporting it */

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe return;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe }

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe restart_pending = 1;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if ((is_graceful = (sig == SIGWINCH))) {

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe apr_pool_cleanup_kill(pconf, NULL, ap_cleanup_scoreboard);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe }

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe}

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowestatic void set_signals(void)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe{

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#ifndef NO_USE_SIGACTION

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe struct sigaction sa;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe sigemptyset(&sa.sa_mask);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe sa.sa_flags = 0;

8632261c895a84c88ae6ade6ea4c62b27bd22b3ebrianp

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (!one_process) {

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe sa.sa_handler = sig_coredump;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#if defined(SA_ONESHOT)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe sa.sa_flags = SA_ONESHOT;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#elif defined(SA_RESETHAND)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe sa.sa_flags = SA_RESETHAND;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#endif

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (sigaction(SIGSEGV, &sa, NULL) < 0)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGSEGV)");

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#ifdef SIGBUS

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (sigaction(SIGBUS, &sa, NULL) < 0)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGBUS)");

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq#endif

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef SIGABORT

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (sigaction(SIGABORT, &sa, NULL) < 0)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGABORT)");

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef SIGABRT

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (sigaction(SIGABRT, &sa, NULL) < 0)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGABRT)");

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef SIGILL

68ce856106f153813339db8670f6cd0ab8dea484minfrin if (sigaction(SIGILL, &sa, NULL) < 0)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGILL)");

45dac0729754e413ff7c673481b219e9ab1a11f1bnicholes#endif

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard sa.sa_flags = 0;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq sa.sa_handler = sig_term;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq if (sigaction(SIGTERM, &sa, NULL) < 0)

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGTERM)");

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq#ifdef SIGINT

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq if (sigaction(SIGINT, &sa, NULL) < 0)

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGINT)");

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq#endif

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq#ifdef SIGXCPU

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq sa.sa_handler = SIG_DFL;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (sigaction(SIGXCPU, &sa, NULL) < 0)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGXCPU)");

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif

68ce856106f153813339db8670f6cd0ab8dea484minfrin#ifdef SIGXFSZ

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin sa.sa_handler = SIG_DFL;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (sigaction(SIGXFSZ, &sa, NULL) < 0)

68ce856106f153813339db8670f6cd0ab8dea484minfrin ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGXFSZ)");

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef SIGPIPE

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding sa.sa_handler = SIG_IGN;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (sigaction(SIGPIPE, &sa, NULL) < 0)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGPIPE)");

11c3b5180e1de6776035320b012a28bb146e7b46chuck#endif

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq /* we want to ignore HUPs and WINCH while we're busy processing one */

11c3b5180e1de6776035320b012a28bb146e7b46chuck sigaddset(&sa.sa_mask, SIGHUP);

11c3b5180e1de6776035320b012a28bb146e7b46chuck sigaddset(&sa.sa_mask, SIGWINCH);

11c3b5180e1de6776035320b012a28bb146e7b46chuck sa.sa_handler = restart;

11c3b5180e1de6776035320b012a28bb146e7b46chuck if (sigaction(SIGHUP, &sa, NULL) < 0)

11c3b5180e1de6776035320b012a28bb146e7b46chuck ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGHUP)");

11c3b5180e1de6776035320b012a28bb146e7b46chuck if (sigaction(SIGWINCH, &sa, NULL) < 0)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGWINCH)");

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#else

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (!one_process) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_signal(SIGSEGV, sig_coredump);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef SIGBUS

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_signal(SIGBUS, sig_coredump);

d7387fcd4969206172e3a2a8bbcd25a3d7011ac5rbb#endif /* SIGBUS */

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#ifdef SIGABORT

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_signal(SIGABORT, sig_coredump);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif /* SIGABORT */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef SIGABRT

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_signal(SIGABRT, sig_coredump);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#endif /* SIGABRT */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef SIGILL

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm apr_signal(SIGILL, sig_coredump);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif /* SIGILL */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef SIGXCPU

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_signal(SIGXCPU, SIG_DFL);

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm#endif /* SIGXCPU */

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#ifdef SIGXFSZ

b999f6ba2a266bf9a92687f31bb7e76021ac5891ianh apr_signal(SIGXFSZ, SIG_DFL);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#endif /* SIGXFSZ */

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm apr_signal(SIGTERM, sig_term);

1cde33c7e2019830f8fb3224e01649305583916etrawick#ifdef SIGHUP

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard apr_signal(SIGHUP, restart);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#endif /* SIGHUP */

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#ifdef SIGWINCH

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard apr_signal(SIGWINCH, restart);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif /* SIGWINCH */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef SIGPIPE

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_signal(SIGPIPE, SIG_IGN);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif /* SIGPIPE */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

5babe00918c88eda487771fa6d6d4a1a19c0ced0chuck

1ccd992d37d62c8cb2056126f2234f64ec189bfddougmstatic int srv;

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic apr_socket_t *csd;

2e41eca72bcc4167d1871b0941ee79845540d58eminfrinstatic int requests_this_child;

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic fd_set main_fds;

35c9e4d2c0a6465746a98958ef756114834461e6minfrin

35c9e4d2c0a6465746a98958ef756114834461e6minfrin#define I_AM_TO_SHUTDOWN() \

5a5a6c22260854843c973e2ea9a14bec64362ab5wrowe(ap_scoreboard_image->servers[my_child_num][0].life_status != SB_WORKING)

d75bc22ab2702fa770f6935f07107efff16a76f0wrowe

11c3b5180e1de6776035320b012a28bb146e7b46chuckint ap_graceful_stop_signalled(void)

35c9e4d2c0a6465746a98958ef756114834461e6minfrin{

45dac0729754e413ff7c673481b219e9ab1a11f1bnicholes /* not ever called anymore... */

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard return 0;

11c3b5180e1de6776035320b012a28bb146e7b46chuck}

35c9e4d2c0a6465746a98958ef756114834461e6minfrin

35c9e4d2c0a6465746a98958ef756114834461e6minfrin

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardstatic void child_main(int child_num_arg)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard{

e2b2e15108eb7cb566b1d70ce4e479276d951de5minfrin ap_listen_rec *lr;

e2b2e15108eb7cb566b1d70ce4e479276d951de5minfrin ap_listen_rec *last_lr;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard ap_listen_rec *first_lr;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard apr_pool_t *ptrans;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard conn_rec *current_conn;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard apr_status_t stat = APR_EINIT;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard int sockdes;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard my_child_num = child_num_arg;

e2b2e15108eb7cb566b1d70ce4e479276d951de5minfrin ap_my_pid = getpid();

e2b2e15108eb7cb566b1d70ce4e479276d951de5minfrin csd = NULL;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard requests_this_child = 0;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard last_lr = NULL;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /* Get a sub context for global allocations in this child, so that

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard apr_pool_create(&pchild, pconf);

e2b2e15108eb7cb566b1d70ce4e479276d951de5minfrin

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard apr_pool_create(&ptrans, pchild);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /* needs to be done before we switch UIDs so we have permissions */

e2b2e15108eb7cb566b1d70ce4e479276d951de5minfrin reopen_scoreboard(pchild);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard SAFE_ACCEPT(accept_mutex_child_init(pchild));

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (unixd_setup_child()) {

35c9e4d2c0a6465746a98958ef756114834461e6minfrin clean_child_exit(APEXIT_CHILDFATAL);

35c9e4d2c0a6465746a98958ef756114834461e6minfrin }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard ap_run_child_init(pchild, ap_server_conf);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

3d350b6e1cb11fa790a6adb428856b5dd9857fecianh (void) ap_update_child_status(AP_CHILD_THREAD_FROM_ID(my_child_num), SERVER_READY, (request_rec *) NULL);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_signal(SIGHUP, please_die_gracefully);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_sync_scoreboard_image();

409f0f53a83313c59f1b227ed0a340adc1081e88wrowe while (!I_AM_TO_SHUTDOWN()) {

409f0f53a83313c59f1b227ed0a340adc1081e88wrowe

409f0f53a83313c59f1b227ed0a340adc1081e88wrowe /* Prepare to receive a SIGWINCH due to graceful restart so that

5babe00918c88eda487771fa6d6d4a1a19c0ced0chuck apr_signal(SIGWINCH, please_die_gracefully);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_signal(SIGTERM, just_die);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /*

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding current_conn = NULL;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm apr_pool_clear(ptrans);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if ((ap_max_requests_per_child > 0

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding && requests_this_child++ >= ap_max_requests_per_child)) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding clean_child_exit(0);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding (void) ap_update_child_status(AP_CHILD_THREAD_FROM_ID(my_child_num), SERVER_READY, (request_rec *) NULL);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /*

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /* Lock around "accept", if necessary */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding SAFE_ACCEPT(accept_mutex_on());

1cde33c7e2019830f8fb3224e01649305583916etrawick

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard for (;;) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (ap_listeners->next) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* more than one socket */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding memcpy(&main_fds, &listenfds, sizeof(fd_set));

002bcf949b064d7c042465d1095cafcfc6c9b701wrowe srv = select(listenmaxfd + 1, &main_fds, NULL, NULL, NULL);

d75bc22ab2702fa770f6935f07107efff16a76f0wrowe

002bcf949b064d7c042465d1095cafcfc6c9b701wrowe if (srv < 0 && errno != EINTR) {

002bcf949b064d7c042465d1095cafcfc6c9b701wrowe /* Single Unix documents select as returning errnos

a2f9f38db0931e6edf7b71378dd680c3c5fa5841rbb ap_log_error(APLOG_MARK, APLOG_ERR, errno, ap_server_conf, "select: (listen)");

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard clean_child_exit(1);

9379749d811388a7d0e3410940ddd6743a33d330jim }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (srv <= 0)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard continue;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /* we remember the last_lr we searched last time around so that

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (last_lr == NULL) {

446c6a9a1e1073798258f1237f8c848b5f917b66wrowe lr = ap_listeners;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard else {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard lr = last_lr->next;

c1c0628ca9788908a5fc7502d04a89c348b75ee6wrowe if (!lr)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard lr = ap_listeners;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard first_lr=lr;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard do {

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin apr_os_sock_get(&sockdes, lr->sd);

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin if (FD_ISSET(sockdes, &main_fds))

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin goto got_listener;

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin lr = lr->next;

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin if (!lr)

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin lr = ap_listeners;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding while (lr != first_lr);

1cde33c7e2019830f8fb3224e01649305583916etrawick /* FIXME: if we get here, something bad has happened, and we're

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin continue;

1cde33c7e2019830f8fb3224e01649305583916etrawick got_listener:

6bdb2c094666367615890147775bb18761216c8dminfrin last_lr = lr;

6bdb2c094666367615890147775bb18761216c8dminfrin sd = lr->sd;

6bdb2c094666367615890147775bb18761216c8dminfrin }

6bdb2c094666367615890147775bb18761216c8dminfrin else {

c1c0628ca9788908a5fc7502d04a89c348b75ee6wrowe /* only one socket, just pretend we did the other stuff */

c1c0628ca9788908a5fc7502d04a89c348b75ee6wrowe sd = ap_listeners->sd;

9865751743e928ea0a9ad83faa04a738001932deminfrin }

c1c0628ca9788908a5fc7502d04a89c348b75ee6wrowe

c1c0628ca9788908a5fc7502d04a89c348b75ee6wrowe /* if we accept() something we don't want to die, so we have to

c1c0628ca9788908a5fc7502d04a89c348b75ee6wrowe apr_signal(SIGTERM, please_die_gracefully);

c1c0628ca9788908a5fc7502d04a89c348b75ee6wrowe for (;;) {

002bcf949b064d7c042465d1095cafcfc6c9b701wrowe ap_sync_scoreboard_image();

002bcf949b064d7c042465d1095cafcfc6c9b701wrowe if (I_AM_TO_SHUTDOWN()) {

d75bc22ab2702fa770f6935f07107efff16a76f0wrowe /* we didn't get a socket, and we were told to die */

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin clean_child_exit(0);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding stat = apr_accept(&csd, sd, ptrans);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (stat == APR_SUCCESS || !APR_STATUS_IS_EINTR(stat))

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding break;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

11c3b5180e1de6776035320b012a28bb146e7b46chuck

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (stat == APR_SUCCESS)

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe break; /* We have a socket ready for reading */

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe else {

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq /* Our old behaviour here was to continue after accept()

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding switch (stat) {

af952917c05e56874069e1e5f64e6473bb478b68minfrin#ifdef EPROTO

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* EPROTO on certain older kernels really means

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim case EPROTO:

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim#endif

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim#ifdef ECONNABORTED

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding case ECONNABORTED:

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* Linux generates the rest of these, other tcp

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#ifdef ECONNRESET

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe case ECONNRESET:

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#endif

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq#ifdef ETIMEDOUT

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq case ETIMEDOUT:

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq#endif

a812b025d139f465a31c76fc02ed162ed5271b03nd#ifdef EHOSTUNREACH

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq case EHOSTUNREACH:

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq#endif

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#ifdef ENETUNREACH

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe case ENETUNREACH:

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#endif

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe break;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe#ifdef ENETDOWN

af952917c05e56874069e1e5f64e6473bb478b68minfrin case ENETDOWN:

af952917c05e56874069e1e5f64e6473bb478b68minfrin /*

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe ap_log_error(APLOG_MARK, APLOG_EMERG, stat, ap_server_conf,

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe "apr_accept: giving up.");

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe clean_child_exit(APEXIT_CHILDFATAL);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#endif /*ENETDOWN*/

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#ifdef TPF

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe case EINACT:

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe ap_log_error(APLOG_MARK, APLOG_EMERG, stat, ap_server_conf,

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe "offload device inactive");

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe clean_child_exit(APEXIT_CHILDFATAL);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe break;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe default:

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, ap_server_conf,

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe "select/accept error (%u)", stat);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe clean_child_exit(APEXIT_CHILDFATAL);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#else

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe default:

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe ap_log_error(APLOG_MARK, APLOG_ERR, stat, ap_server_conf,

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe "apr_accept: (client socket)");

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe clean_child_exit(1);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#endif

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

9379749d811388a7d0e3410940ddd6743a33d330jim

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_sync_scoreboard_image();

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (I_AM_TO_SHUTDOWN()) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding clean_child_exit(0);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

3c59b18ce62f97468aaa5951d4e21a5478ef36ecminfrin SAFE_ACCEPT(accept_mutex_off()); /* unlock after "accept" */

9379749d811388a7d0e3410940ddd6743a33d330jim

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* We've got a socket, let's at least process one request off the

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_signal(SIGWINCH, SIG_IGN);

3c59b18ce62f97468aaa5951d4e21a5478ef36ecminfrin /*

9379749d811388a7d0e3410940ddd6743a33d330jim

3c59b18ce62f97468aaa5951d4e21a5478ef36ecminfrin apr_os_sock_get(&sockdes, csd);

3c59b18ce62f97468aaa5951d4e21a5478ef36ecminfrin

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (sockdes >= FD_SETSIZE) {

3c59b18ce62f97468aaa5951d4e21a5478ef36ecminfrin ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING, 0, NULL,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "new file descriptor %d is too large; you probably need "

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "to rebuild Apache with a larger FD_SETSIZE "

9379749d811388a7d0e3410940ddd6743a33d330jim "(currently %d)",

9379749d811388a7d0e3410940ddd6743a33d330jim sockdes, FD_SETSIZE);

9379749d811388a7d0e3410940ddd6743a33d330jim apr_socket_close(csd);

9379749d811388a7d0e3410940ddd6743a33d330jim ap_sync_scoreboard_image();

9379749d811388a7d0e3410940ddd6743a33d330jim continue;

9379749d811388a7d0e3410940ddd6743a33d330jim }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef TPF

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (sockdes == 0) { /* 0 is invalid socket for TPF */

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard ap_sync_scoreboard_image();

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding continue;

9379749d811388a7d0e3410940ddd6743a33d330jim }

9379749d811388a7d0e3410940ddd6743a33d330jim#endif

9379749d811388a7d0e3410940ddd6743a33d330jim

9379749d811388a7d0e3410940ddd6743a33d330jim ap_sock_disable_nagle(csd);

9379749d811388a7d0e3410940ddd6743a33d330jim

9379749d811388a7d0e3410940ddd6743a33d330jim current_conn = ap_new_connection(ptrans, ap_server_conf, csd,

9379749d811388a7d0e3410940ddd6743a33d330jim my_child_num);

9379749d811388a7d0e3410940ddd6743a33d330jim if (current_conn) {

11c3b5180e1de6776035320b012a28bb146e7b46chuck ap_process_connection(current_conn);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_lingering_close(current_conn);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

24efed0910118b762a4eb84830875d4714b8d315ianh

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_sync_scoreboard_image();

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

066877f1a045103acfdd376d48cdd473c33f409bdougm clean_child_exit(0);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic int make_child(server_rec *s, int slot)

9379749d811388a7d0e3410940ddd6743a33d330jim{

9379749d811388a7d0e3410940ddd6743a33d330jim int pid;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (slot + 1 > ap_max_daemons_limit) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_max_daemons_limit = slot + 1;

9379749d811388a7d0e3410940ddd6743a33d330jim }

9379749d811388a7d0e3410940ddd6743a33d330jim

9379749d811388a7d0e3410940ddd6743a33d330jim if (one_process) {

9379749d811388a7d0e3410940ddd6743a33d330jim apr_signal(SIGHUP, please_die_gracefully);

9379749d811388a7d0e3410940ddd6743a33d330jim apr_signal(SIGINT, please_die_gracefully);

9379749d811388a7d0e3410940ddd6743a33d330jim#ifdef SIGQUIT

9379749d811388a7d0e3410940ddd6743a33d330jim apr_signal(SIGQUIT, SIG_DFL);

9379749d811388a7d0e3410940ddd6743a33d330jim#endif

9379749d811388a7d0e3410940ddd6743a33d330jim apr_signal(SIGTERM, just_die);

9379749d811388a7d0e3410940ddd6743a33d330jim ap_scoreboard_image->servers[slot][0].life_status = SB_WORKING;

9379749d811388a7d0e3410940ddd6743a33d330jim child_main(slot);

9379749d811388a7d0e3410940ddd6743a33d330jim }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe (void) ap_update_child_status(AP_CHILD_THREAD_FROM_ID(slot), SERVER_STARTING, (request_rec *) NULL);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef _OSD_POSIX

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* BS2000 requires a "special" version of fork() before a setuid() call */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if ((pid = os_fork(unixd_config.user_name)) == -1) {

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe#elif defined(TPF)

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe if ((pid = os_fork(s, slot)) == -1) {

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe#else

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe if ((pid = fork()) == -1) {

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe#endif

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe ap_log_error(APLOG_MARK, APLOG_ERR, errno, s, "fork: Unable to fork new process");

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe /* fork didn't succeed. Fix the scoreboard or else

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe (void) ap_update_child_status(AP_CHILD_THREAD_FROM_ID(slot), SERVER_DEAD, (request_rec *) NULL);

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe /* In case system resources are maxxed out, we don't want

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe sleep(10);

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe return -1;

433dc2d5dae74ed067db6175010ff973d02511e9jerenkrantz }

433dc2d5dae74ed067db6175010ff973d02511e9jerenkrantz

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe if (!pid) {

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe#ifdef AIX_BIND_PROCESSOR

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe#include <sys/processor.h>

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe int status = bindprocessor(BINDPROCESS, (int)getpid(),

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe PROCESSOR_CLASS_ANY);

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe if (status != OK) {

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING, ap_server_conf,

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe "processor unbind failed %d", status);

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe }

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe#endif

75b0a6a06ca1f4de80e3dd2a09c9f0c7d0a56089wrowe RAISE_SIGSTOP(MAKE_CHILD);

75b0a6a06ca1f4de80e3dd2a09c9f0c7d0a56089wrowe /* Disable the restart signal handlers and enable the please_die_gracefully stuff.

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe apr_signal(SIGHUP, please_die_gracefully);

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe apr_signal(SIGWINCH, please_die_gracefully);

5a5a6c22260854843c973e2ea9a14bec64362ab5wrowe apr_signal(SIGTERM, just_die);

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe ap_scoreboard_image->servers[slot][0].life_status = SB_WORKING;

4415d997ac73262e513c0a571bd5be4f609040bawrowe child_main(slot);

4415d997ac73262e513c0a571bd5be4f609040bawrowe }

4415d997ac73262e513c0a571bd5be4f609040bawrowe

4415d997ac73262e513c0a571bd5be4f609040bawrowe ap_scoreboard_image->parent[slot].pid = pid;

de274dca1be855ebb66bb7857951aae26fcb54c7wrowe#ifdef SCOREBOARD_FILE

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe lseek(scoreboard_fd, XtOffsetOf(scoreboard, parent[slot]), 0);

4415d997ac73262e513c0a571bd5be4f609040bawrowe force_write(scoreboard_fd, &ap_scoreboard_image->parent[slot],

eee895b02dd7867622afd0a8a94f2efc7de9c618wrowe sizeof(parent_score));

eee895b02dd7867622afd0a8a94f2efc7de9c618wrowe#endif

4415d997ac73262e513c0a571bd5be4f609040bawrowe

de274dca1be855ebb66bb7857951aae26fcb54c7wrowe return 0;

4415d997ac73262e513c0a571bd5be4f609040bawrowe}

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowestatic void startup_children(int number_to_start)

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe{

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe int i;

de274dca1be855ebb66bb7857951aae26fcb54c7wrowe

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe for (i = 0; number_to_start && i < ap_daemons_limit; ++i) {

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe if (ap_scoreboard_image->servers[i][0].status != SERVER_DEAD) {

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe continue;

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe }

eee895b02dd7867622afd0a8a94f2efc7de9c618wrowe if (make_child(ap_server_conf, i) < 0) {

eee895b02dd7867622afd0a8a94f2efc7de9c618wrowe break;

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe }

de274dca1be855ebb66bb7857951aae26fcb54c7wrowe --number_to_start;

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe }

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe}

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic int idle_spawn_rate = 1;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifndef MAX_SPAWN_RATE

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#define MAX_SPAWN_RATE (32)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard#endif

529005244758297d4415aa912c67a67f805349bcianhstatic int hold_off_on_exponential_spawning;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardstatic void perform_idle_server_maintenance(void)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard{

529005244758297d4415aa912c67a67f805349bcianh int i;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard int to_kill;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard int idle_count;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard short_score *ss;

529005244758297d4415aa912c67a67f805349bcianh int free_length;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard int free_slots[MAX_SPAWN_RATE];

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard int last_non_dead;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard int total_non_dead;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

529005244758297d4415aa912c67a67f805349bcianh /* initialize the free_list */

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard free_length = 0;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding to_kill = -1;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq idle_count = 0;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq last_non_dead = -1;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq total_non_dead = 0;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq ap_sync_scoreboard_image();

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq for (i = 0; i < ap_daemons_limit; ++i) {

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq int status;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq if (i >= ap_max_daemons_limit && free_length == idle_spawn_rate)

a812b025d139f465a31c76fc02ed162ed5271b03nd break;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq ss = &ap_scoreboard_image->servers[i][0];

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq status = ss->status;

a812b025d139f465a31c76fc02ed162ed5271b03nd if (status == SERVER_DEAD) {

a812b025d139f465a31c76fc02ed162ed5271b03nd /* try to keep children numbers as low as possible */

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq if (free_length < idle_spawn_rate) {

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq free_slots[free_length] = i;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq ++free_length;

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq }

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq }

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq else {

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq /* We consider a starting server as idle because we started it

33cb45dc8c5106018b7c2f6ae42478b109423e0eniq if (status <= SERVER_READY) {

a812b025d139f465a31c76fc02ed162ed5271b03nd ++ idle_count;

a812b025d139f465a31c76fc02ed162ed5271b03nd /* always kill the highest numbered child if we have to...

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding to_kill = i;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ++total_non_dead;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding last_non_dead = i;

a6314dfa8dd8a0d69db16288581e4950a2dd3955minfrin }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_max_daemons_limit = last_non_dead + 1;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (idle_count > ap_daemons_max_free) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* kill off one child... we use SIGWINCH because that'll cause it to

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard kill(ap_scoreboard_image->parent[to_kill].pid, SIGWINCH);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding idle_spawn_rate = 1;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding else if (idle_count < ap_daemons_min_free) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /* terminate the free list */

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (free_length == 0) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /* only report this condition once */

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard static int reported = 0;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (!reported) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, ap_server_conf,

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard "server reached MaxClients setting, consider"

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding " raising the MaxClients setting");

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding reported = 1;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding idle_spawn_rate = 1;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding else {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (idle_spawn_rate >= 8) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, 0, ap_server_conf,

a2f9f38db0931e6edf7b71378dd680c3c5fa5841rbb "server seems busy, (you may need "

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "to increase StartServers, or Min/MaxSpareServers), "

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "spawning %d children, there are %d idle, and "

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "%d total children", idle_spawn_rate,

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard idle_count, total_non_dead);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding for (i = 0; i < free_length; ++i) {

10a4cdd68ef1ca0e54af296fe1d08ac00150c90bwrowe#ifdef TPF

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (make_child(ap_server_conf, free_slots[i]) == -1) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if(free_length == 1) {

066877f1a045103acfdd376d48cdd473c33f409bdougm shutdown_pending = 1;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_EMERG, 0, ap_server_conf,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "No active child processes: shutting down");

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#else

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding make_child(ap_server_conf, free_slots[i]);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif /* TPF */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

11c3b5180e1de6776035320b012a28bb146e7b46chuck /* the next time around we want to spawn twice as many if this

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (hold_off_on_exponential_spawning) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding --hold_off_on_exponential_spawning;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding else if (idle_spawn_rate < MAX_SPAWN_RATE) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding idle_spawn_rate *= 2;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding else {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard idle_spawn_rate = 1;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic int setup_listeners(server_rec *s)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard{

11c3b5180e1de6776035320b012a28bb146e7b46chuck ap_listen_rec *lr;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard int sockdes;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

11c3b5180e1de6776035320b012a28bb146e7b46chuck if (ap_setup_listeners(s) < 1 ) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ALERT, 0, s,

1cde33c7e2019830f8fb3224e01649305583916etrawick "no listening sockets available, shutting down");

407cde44becba3694e7c3d81ac99b5d86f4b03a9rbb return -1;

1cde33c7e2019830f8fb3224e01649305583916etrawick }

407cde44becba3694e7c3d81ac99b5d86f4b03a9rbb

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding listenmaxfd = -1;

11c3b5180e1de6776035320b012a28bb146e7b46chuck FD_ZERO(&listenfds);

11c3b5180e1de6776035320b012a28bb146e7b46chuck for (lr = ap_listeners; lr; lr = lr->next) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard apr_os_sock_get(&sockdes, lr->sd);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding FD_SET(sockdes, &listenfds);

1cde33c7e2019830f8fb3224e01649305583916etrawick if (sockdes > listenmaxfd) {

407cde44becba3694e7c3d81ac99b5d86f4b03a9rbb listenmaxfd = sockdes;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard return 0;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardint ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding int index;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard int remaining_children_to_start;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard pconf = _pconf;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_server_conf = s;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_pid(pconf, ap_pid_fname);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

11c3b5180e1de6776035320b012a28bb146e7b46chuck if (setup_listeners(s)) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* XXX: hey, what's the right way for the mpm to indicate a fatal error? */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return 1;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding SAFE_ACCEPT(accept_mutex_init(pconf));

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (!is_graceful) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_create_scoreboard(pconf, SB_SHARED);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef SCOREBOARD_FILE

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding else {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_scoreboard_fname = ap_server_root_relative(pconf, ap_scoreboard_fname);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_note_cleanups_for_fd(pconf, scoreboard_fd);

11c3b5180e1de6776035320b012a28bb146e7b46chuck }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding set_signals();

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (ap_daemons_max_free < ap_daemons_min_free + 1) /* Don't thrash... */

af952917c05e56874069e1e5f64e6473bb478b68minfrin ap_daemons_max_free = ap_daemons_min_free + 1;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* If we're doing a graceful_restart then we're going to see a lot

dcc56911d2b95e73554ff8ced9f72fd456d73881minfrin remaining_children_to_start = ap_daemons_to_start;

ff1234e45aca1b8171d711ecb87f58b9d9100a99ianh if (remaining_children_to_start > ap_daemons_limit) {

ff1234e45aca1b8171d711ecb87f58b9d9100a99ianh remaining_children_to_start = ap_daemons_limit;

fd3fa792f04fc9c4e8f5f83dceb0fc34e71f8570ianh }

fd3fa792f04fc9c4e8f5f83dceb0fc34e71f8570ianh if (!is_graceful) {

fd3fa792f04fc9c4e8f5f83dceb0fc34e71f8570ianh startup_children(remaining_children_to_start);

fd3fa792f04fc9c4e8f5f83dceb0fc34e71f8570ianh remaining_children_to_start = 0;

fd3fa792f04fc9c4e8f5f83dceb0fc34e71f8570ianh }

fd3fa792f04fc9c4e8f5f83dceb0fc34e71f8570ianh else {

fd3fa792f04fc9c4e8f5f83dceb0fc34e71f8570ianh /* give the system some time to recover before kicking into

fd3fa792f04fc9c4e8f5f83dceb0fc34e71f8570ianh hold_off_on_exponential_spawning = 10;

fd3fa792f04fc9c4e8f5f83dceb0fc34e71f8570ianh }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0, ap_server_conf,

11c3b5180e1de6776035320b012a28bb146e7b46chuck "%s configured -- resuming normal operations",

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_get_server_version());

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, 0, ap_server_conf,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "Server built: %s", ap_get_server_built());

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding restart_pending = shutdown_pending = 0;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard while (!restart_pending && !shutdown_pending) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding int child_slot;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_wait_t status;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* this is a memory leak, but I'll fix it later. */

af952917c05e56874069e1e5f64e6473bb478b68minfrin apr_proc_t pid;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_wait_or_timeout(&status, &pid, pconf);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

afef080e47ef499a5cbceb7ad7fadbb3abca0b48minfrin /* XXX: if it takes longer than 1 second for all our children

afef080e47ef499a5cbceb7ad7fadbb3abca0b48minfrin if (pid.pid != -1) {

afef080e47ef499a5cbceb7ad7fadbb3abca0b48minfrin ap_process_child_status(&pid, status);

afef080e47ef499a5cbceb7ad7fadbb3abca0b48minfrin /* non-fatal death... note that it's gone in the scoreboard. */

10306ac2c175f420e6989568f4c8535a5dbc1349minfrin ap_sync_scoreboard_image();

afef080e47ef499a5cbceb7ad7fadbb3abca0b48minfrin child_slot = find_child_by_pid(&pid);

afef080e47ef499a5cbceb7ad7fadbb3abca0b48minfrin if (child_slot >= 0) {

afef080e47ef499a5cbceb7ad7fadbb3abca0b48minfrin (void) ap_update_child_status(AP_CHILD_THREAD_FROM_ID(child_slot), SERVER_DEAD,

afef080e47ef499a5cbceb7ad7fadbb3abca0b48minfrin (request_rec *) NULL);

35c9e4d2c0a6465746a98958ef756114834461e6minfrin if (remaining_children_to_start

35c9e4d2c0a6465746a98958ef756114834461e6minfrin && child_slot < ap_daemons_limit) {

35c9e4d2c0a6465746a98958ef756114834461e6minfrin /* we're still doing a 1-for-1 replacement of dead

35c9e4d2c0a6465746a98958ef756114834461e6minfrin make_child(ap_server_conf, child_slot);

35c9e4d2c0a6465746a98958ef756114834461e6minfrin --remaining_children_to_start;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

35c9e4d2c0a6465746a98958ef756114834461e6minfrin#if APR_HAS_OTHER_CHILD

35c9e4d2c0a6465746a98958ef756114834461e6minfrin }

35c9e4d2c0a6465746a98958ef756114834461e6minfrin else if (apr_proc_other_child_read(&pid, status) == 0) {

35c9e4d2c0a6465746a98958ef756114834461e6minfrin /* handled */

35c9e4d2c0a6465746a98958ef756114834461e6minfrin#endif

35c9e4d2c0a6465746a98958ef756114834461e6minfrin }

4224d5789080ea5586d49420da1e1996f5653bb5ianh else if (is_graceful) {

4224d5789080ea5586d49420da1e1996f5653bb5ianh /* Great, we've probably just lost a slot in the

4224d5789080ea5586d49420da1e1996f5653bb5ianh ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING,

4224d5789080ea5586d49420da1e1996f5653bb5ianh 0, ap_server_conf,

4224d5789080ea5586d49420da1e1996f5653bb5ianh "long lost child came home! (pid %ld)", (long)pid.pid);

4224d5789080ea5586d49420da1e1996f5653bb5ianh }

4224d5789080ea5586d49420da1e1996f5653bb5ianh /* Don't perform idle maintenance when a child dies,

4224d5789080ea5586d49420da1e1996f5653bb5ianh continue;

4224d5789080ea5586d49420da1e1996f5653bb5ianh }

35c9e4d2c0a6465746a98958ef756114834461e6minfrin else if (remaining_children_to_start) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* we hit a 1 second timeout in which none of the previous

11c3b5180e1de6776035320b012a28bb146e7b46chuck startup_children(remaining_children_to_start);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding remaining_children_to_start = 0;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* In any event we really shouldn't do the code below because

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding continue;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding perform_idle_server_maintenance();

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#ifdef TPF

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard shutdown_pending = os_check_server(tpf_server_name);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard ap_check_signals();

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding sleep(1);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#endif /*TPF */

af952917c05e56874069e1e5f64e6473bb478b68minfrin }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (shutdown_pending) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* Time to gracefully shut down:

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim if (unixd_killpg(getpgrp(), SIGTERM) < 0) {

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "killpg SIGTERM");

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim }

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim ap_reclaim_child_processes(1); /* Start with SIGTERM */

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim /* cleanup pid file on normal shutdown */

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim {

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim const char *pidfile = NULL;

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim pidfile = ap_server_root_relative (pconf, ap_pid_fname);

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim if ( pidfile != NULL && unlink(pidfile) == 0)

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO,

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim 0, ap_server_conf,

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim "removed PID file %s (pid=%ld)",

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim pidfile, (long)getpid());

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim }

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0, ap_server_conf,

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim "caught SIGTERM, shutting down");

db8ac7cbb1fa6cdd6abcc4bb797d4deed32dd269jim return 1;

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe }

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe /* we've been told to restart */

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe apr_signal(SIGHUP, SIG_IGN);

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe apr_signal(SIGWINCH, SIG_IGN);

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe if (one_process) {

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe /* not worth thinking about */

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe return 1;

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe }

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe /* advance to the next generation */

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe /* XXX: we really need to make sure this new generation number isn't in

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe ++ap_my_generation;

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe ap_scoreboard_image->global.running_generation = ap_my_generation;

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe update_scoreboard_global();

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe for (index = 0; index < ap_daemons_limit; ++index) {

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe ap_scoreboard_image->servers[index][0].life_status = SB_IDLE_DIE;

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe }

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe if (is_graceful) {

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0, ap_server_conf,

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe "SIGWINCH received. Doing graceful restart");

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

5a5a6c22260854843c973e2ea9a14bec64362ab5wrowe /* kill off the idle ones */

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe if (unixd_killpg(getpgrp(), SIGWINCH) < 0) {

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "killpg SIGWINCH");

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe }

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe#ifndef SCOREBOARD_FILE

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe /* This is mostly for debugging... so that we know what is still

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe ap_sync_scoreboard_image();

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe for (index = 0; index < ap_daemons_limit; ++index) {

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe if (ap_scoreboard_image->servers[index][0].status != SERVER_DEAD) {

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe ap_scoreboard_image->servers[index][0].status = SERVER_GRACEFUL;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe }

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe }

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe#endif

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe }

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe else {

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe /* Kill 'em off */

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe if (unixd_killpg(getpgrp(), SIGHUP) < 0) {

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "killpg SIGHUP");

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe }

5d5c9e862c3d4e7f15c12d293de4111f52404760wrowe ap_reclaim_child_processes(0); /* Not when just starting up */

433dc2d5dae74ed067db6175010ff973d02511e9jerenkrantz ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0, ap_server_conf,

433dc2d5dae74ed067db6175010ff973d02511e9jerenkrantz "SIGHUP received. Attempting to restart");

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe }

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe return 0;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe}

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowestatic void prefork_pre_config(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp)

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe{

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe static int restart_num = 0;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe int no_detach = 0;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe no_detach = !!ap_exists_config_define("NO_DETACH");

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe one_process = !!ap_exists_config_define("ONE_PROCESS");

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe /* sigh, want this only the second time around */

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe if (restart_num++ == 1) {

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe is_graceful = 0;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe if (!one_process && !no_detach) {

de274dca1be855ebb66bb7857951aae26fcb54c7wrowe apr_proc_detach();

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe }

1dac466bcc84f8ebf410016dcf2a4cd4312e8611wrowe

4c67ef499845a08771e81254ce6eb2324a160bc7wrowe ap_my_pid = getpid();

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe }

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe unixd_pre_config(ptemp);

eee895b02dd7867622afd0a8a94f2efc7de9c618wrowe ap_listen_pre_config();

eee895b02dd7867622afd0a8a94f2efc7de9c618wrowe ap_daemons_to_start = DEFAULT_START_DAEMON;

38fd849bd99e2765ee633b6dc576b5f17acdc455wrowe ap_daemons_min_free = DEFAULT_MIN_FREE_DAEMON;

de274dca1be855ebb66bb7857951aae26fcb54c7wrowe ap_daemons_max_free = DEFAULT_MAX_FREE_DAEMON;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe ap_daemons_limit = HARD_SERVER_LIMIT;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe ap_pid_fname = DEFAULT_PIDLOG;

c0a549c3f6e8edc87e921cf76fac95d04feba72bwrowe ap_scoreboard_fname = DEFAULT_SCOREBOARD;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe ap_lock_fname = DEFAULT_LOCKFILE;

4415d997ac73262e513c0a571bd5be4f609040bawrowe ap_max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD;

4415d997ac73262e513c0a571bd5be4f609040bawrowe ap_extended_status = 0;

4415d997ac73262e513c0a571bd5be4f609040bawrowe

4415d997ac73262e513c0a571bd5be4f609040bawrowe apr_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir));

de274dca1be855ebb66bb7857951aae26fcb54c7wrowe}

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowestatic void prefork_hooks(apr_pool_t *p)

4cc02d7521758b07c7cd240e8ea32fb7a20909cfwrowe{

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe#ifdef AUX3

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe (void) set42sig();

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe#endif

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe ap_hook_pre_config(prefork_pre_config, NULL, NULL, APR_HOOK_MIDDLE);

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe}

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowestatic const char *set_pidfile(cmd_parms *cmd, void *dummy, const char *arg)

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe{

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);

5a5a6c22260854843c973e2ea9a14bec64362ab5wrowe if (err != NULL) {

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe return err;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe }

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe if (cmd->server->is_virtual) {

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe return "PidFile directive not allowed in <VirtualHost>";

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe }

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe ap_pid_fname = arg;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe return NULL;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe}

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowestatic const char *set_scoreboard(cmd_parms *cmd, void *dummy, const char *arg)

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe{

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe if (err != NULL) {

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe return err;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe }

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe ap_scoreboard_fname = arg;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe return NULL;

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe}

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowestatic const char *set_lockfile(cmd_parms *cmd, void *dummy, const char *arg)

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe{

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe if (err != NULL) {

d52b01101efdd3a37493d1090f20eb23c4dd1521wrowe return err;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe }

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe ap_lock_fname = arg;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe return NULL;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe}

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowestatic const char *set_daemons_to_start(cmd_parms *cmd, void *dummy, const char *arg)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe{

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (err != NULL) {

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe return err;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe }

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe ap_daemons_to_start = atoi(arg);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe return NULL;