+++ /dev/null
-/* ====================================================================
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2000 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Apache" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- *
- * Portions of this software are based upon public domain software
- * originally written at the National Center for Supercomputing Applications,
- * University of Illinois, Urbana-Champaign.
- */
-
-#include "apr_portable.h"
-#include "apr_strings.h"
-#include "apr_file_io.h"
-#include "apr_signal.h"
-
-#if APR_HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#if APR_HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-
-#define CORE_PRIVATE
-
-#include "ap_config.h"
-#include "httpd.h"
-#include "http_main.h"
-#include "http_log.h"
-#include "http_config.h" /* for read_config */
-#include "http_core.h" /* for get_remote_host */
-#include "http_connection.h"
-#include "ap_mpm.h"
-#include "unixd.h"
-#include "mpm_common.h"
-#include "ap_listen.h"
-#include "mpm_default.h"
-#include "mpm.h"
-#include "scoreboard.h"
-
-/* ### should be APR-ized */
-#include <poll.h>
-#include <pthread.h>
-
-#if HAVE_NETINET_TCP_H
-#include <netinet/tcp.h>
-#endif
-
-/*
- * Actual definitions of config globals
- */
-
-static int threads_to_start = 0; /* Worker threads per child */
-static int min_spare_threads = 0;
-static int max_spare_threads = 0;
-static int max_threads = 0;
-static int max_requests_per_child = 0;
-static const char *ap_pid_fname=NULL;
-static int num_daemons=0;
-static int workers_may_exit = 0;
-static int requests_this_child;
-static int num_listenfds = 0;
-static apr_socket_t **listenfds;
-
-struct ap_ctable ap_child_table[HARD_SERVER_LIMIT];
-
-/*
- * The max child slot ever assigned, preserved across restarts. Necessary
- * to deal with NumServers changes across SIGWINCH restarts. We use this
- * value to optimize routines that have to scan the entire child table.
- *
- * XXX - It might not be worth keeping this code in. There aren't very
- * many child processes in this MPM.
- */
-int ap_max_daemons_limit = -1;
-int ap_threads_per_child = HARD_THREAD_LIMIT;
-
-char ap_coredump_dir[MAX_STRING_LEN];
-
-static apr_file_t *pipe_of_death_in = NULL;
-static apr_file_t *pipe_of_death_out = NULL;
-static pthread_mutex_t pipe_of_death_mutex;
-
-/* *Non*-shared http_main globals... */
-
-server_rec *ap_server_conf;
-
-/* one_process --- debugging mode variable; can be set from the command line
- * with the -X flag. If set, this gets you the child_main loop running
- * in the process which originally started up (no detach, no make_child),
- * which is a pretty nice debugging environment. (You'll get a SIGHUP
- * early in standalone_main; just continue through. This is the server
- * trying to kill off any child processes which it might have lying
- * around --- Apache doesn't keep track of their pids, it just sends
- * SIGHUP to the process group, ignoring it in the root process.
- * Continue through and you'll be fine.).
- */
-
-static int one_process = 0;
-
-#ifdef DEBUG_SIGSTOP
-int raise_sigstop_flags;
-#endif
-
-static apr_pool_t *pconf; /* Pool for config stuff */
-static apr_pool_t *pchild; /* Pool for httpd child stuff */
-static apr_pool_t *thread_pool_parent; /* Parent of per-thread pools */
-static pthread_mutex_t thread_pool_parent_mutex;
-
-static int child_num;
-static unsigned int my_pid; /* Linux getpid() doesn't work except in
- main thread. Use this instead */
-/* Keep track of the number of worker threads currently active */
-static int worker_thread_count;
-static pthread_mutex_t worker_thread_count_mutex;
-static int worker_thread_free_ids[HARD_THREAD_LIMIT];
-static pthread_attr_t worker_thread_attr;
-
-/* Keep track of the number of idle worker threads */
-static int idle_thread_count;
-static pthread_mutex_t idle_thread_count_mutex;
-
-/* Locks for accept serialization */
-#ifdef NO_SERIALIZED_ACCEPT
-#define SAFE_ACCEPT(stmt) APR_SUCCESS
-#else
-#define SAFE_ACCEPT(stmt) (stmt)
-static apr_lock_t *accept_mutex;
-#endif /* NO_SERIALIZED_ACCEPT */
-static const char *lock_fname;
-
-AP_DECLARE(int) ap_get_max_daemons(void)
-{
- return ap_max_daemons_limit;
-}
-
-/* a clean exit from a child with proper cleanup */
-static void clean_child_exit(int code)
-{
- if (pchild) {
- apr_pool_destroy(pchild);
- }
- exit(code);
-}
-
-/* handle all varieties of core dumping signals */
-static void sig_coredump(int sig)
-{
- chdir(ap_coredump_dir);
- apr_signal(sig, SIG_DFL);
- kill(getpid(), sig);
- /* At this point we've got sig blocked, because we're still inside
- * the signal handler. When we leave the signal handler it will
- * be unblocked, and we'll take the signal... and coredump or whatever
- * is appropriate for this particular Unix. In addition the parent
- * will see the real signal we received -- whereas if we called
- * abort() here, the parent would only see SIGABRT.
- */
-}
-
-static void just_die(int sig)
-{
- clean_child_exit(0);
-}
-
-/*****************************************************************
- * Connection structures and accounting...
- */
-
-/* volatile just in case */
-static int volatile shutdown_pending;
-static int volatile restart_pending;
-static int volatile is_graceful;
-ap_generation_t volatile ap_my_generation=0;
-
-/*
- * ap_start_shutdown() and ap_start_restart(), below, are a first stab at
- * functions to initiate shutdown or restart without relying on signals.
- * Previously this was initiated in sig_term() and restart() signal handlers,
- * but we want to be able to start a shutdown/restart from other sources --
- * e.g. on Win32, from the service manager. Now the service manager can
- * call ap_start_shutdown() or ap_start_restart() as appropiate. Note that
- * these functions can also be called by the child processes, since global
- * variables are no longer used to pass on the required action to the parent.
- *
- * These should only be called from the parent process itself, since the
- * parent process will use the shutdown_pending and restart_pending variables
- * to determine whether to shutdown or restart. The child process should
- * call signal_parent() directly to tell the parent to die -- this will
- * cause neither of those variable to be set, which the parent will
- * assume means something serious is wrong (which it will be, for the
- * child to force an exit) and so do an exit anyway.
- */
-
-static void ap_start_shutdown(void)
-{
- if (shutdown_pending == 1) {
- /* Um, is this _probably_ not an error, if the user has
- * tried to do a shutdown twice quickly, so we won't
- * worry about reporting it.
- */
- return;
- }
- shutdown_pending = 1;
-}
-
-/* do a graceful restart if graceful == 1 */
-static void ap_start_restart(int graceful)
-{
-
- if (restart_pending == 1) {
- /* Probably not an error - don't bother reporting it */
- return;
- }
- restart_pending = 1;
- is_graceful = graceful;
- if (is_graceful) {
- apr_pool_cleanup_kill(pconf, NULL, ap_cleanup_scoreboard);
- }
-}
-
-static void sig_term(int sig)
-{
- ap_start_shutdown();
-}
-
-static void restart(int sig)
-{
-#ifndef WIN32
- ap_start_restart(sig == SIGWINCH);
-#else
- ap_start_restart(1);
-#endif
-}
-
-static void set_signals(void)
-{
-#ifndef NO_USE_SIGACTION
- struct sigaction sa;
-
- sigemptyset(&sa.sa_mask);
- sa.sa_flags = 0;
-
- if (!one_process) {
- sa.sa_handler = sig_coredump;
-#if defined(SA_ONESHOT)
- sa.sa_flags = SA_ONESHOT;
-#elif defined(SA_RESETHAND)
- sa.sa_flags = SA_RESETHAND;
-#endif
- if (sigaction(SIGSEGV, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGSEGV)");
-#ifdef SIGBUS
- if (sigaction(SIGBUS, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGBUS)");
-#endif
-#ifdef SIGABORT
- if (sigaction(SIGABORT, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGABORT)");
-#endif
-#ifdef SIGABRT
- if (sigaction(SIGABRT, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGABRT)");
-#endif
-#ifdef SIGILL
- if (sigaction(SIGILL, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGILL)");
-#endif
- sa.sa_flags = 0;
- }
- sa.sa_handler = sig_term;
- if (sigaction(SIGTERM, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGTERM)");
-#ifdef SIGINT
- if (sigaction(SIGINT, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGINT)");
-#endif
-#ifdef SIGXCPU
- sa.sa_handler = SIG_DFL;
- if (sigaction(SIGXCPU, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGXCPU)");
-#endif
-#ifdef SIGXFSZ
- sa.sa_handler = SIG_DFL;
- if (sigaction(SIGXFSZ, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGXFSZ)");
-#endif
-#ifdef SIGPIPE
- sa.sa_handler = SIG_IGN;
- if (sigaction(SIGPIPE, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGPIPE)");
-#endif
-
- /* we want to ignore HUPs and WINCH while we're busy processing one */
- sigaddset(&sa.sa_mask, SIGHUP);
- sigaddset(&sa.sa_mask, SIGWINCH);
- sa.sa_handler = restart;
- if (sigaction(SIGHUP, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGHUP)");
- if (sigaction(SIGWINCH, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGWINCH)");
-#else
- if (!one_process) {
- apr_signal(SIGSEGV, sig_coredump);
-#ifdef SIGBUS
- apr_signal(SIGBUS, sig_coredump);
-#endif /* SIGBUS */
-#ifdef SIGABORT
- apr_signal(SIGABORT, sig_coredump);
-#endif /* SIGABORT */
-#ifdef SIGABRT
- apr_signal(SIGABRT, sig_coredump);
-#endif /* SIGABRT */
-#ifdef SIGILL
- apr_signal(SIGILL, sig_coredump);
-#endif /* SIGILL */
-#ifdef SIGXCPU
- apr_signal(SIGXCPU, SIG_DFL);
-#endif /* SIGXCPU */
-#ifdef SIGXFSZ
- apr_signal(SIGXFSZ, SIG_DFL);
-#endif /* SIGXFSZ */
- }
-
- apr_signal(SIGTERM, sig_term);
-#ifdef SIGHUP
- apr_signal(SIGHUP, restart);
-#endif /* SIGHUP */
-#ifdef SIGWINCH
- apr_signal(SIGWINCH, restart);
-#endif /* SIGWINCH */
-#ifdef SIGPIPE
- apr_signal(SIGPIPE, SIG_IGN);
-#endif /* SIGPIPE */
-
-#endif
-}
-
-/*****************************************************************
- * Here follows a long bunch of generic server bookkeeping stuff...
- */
-
-int ap_graceful_stop_signalled(void)
-{
- /* XXX - Does this really work? - Manoj */
- return is_graceful;
-}
-
-/*****************************************************************
- * Child process main loop.
- */
-
-static void process_socket(apr_pool_t *p, apr_socket_t *sock, long conn_id)
-{
- conn_rec *current_conn;
- int csd;
- apr_status_t rv;
-
- if ((rv = apr_os_sock_get(&csd, sock)) != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_ERR, rv, NULL, "apr_os_sock_get");
- }
-
- if (csd >= FD_SETSIZE) {
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING, 0, NULL,
- "new file descriptor %d is too large; you probably need "
- "to rebuild Apache with a larger FD_SETSIZE "
- "(currently %d)",
- csd, FD_SETSIZE);
- apr_socket_close(sock);
- return;
- }
-
- ap_sock_disable_nagle(sock);
-
- current_conn = ap_new_connection(p, ap_server_conf, sock, conn_id);
- if (current_conn) {
- ap_process_connection(current_conn);
- ap_lingering_close(current_conn);
- }
-}
-
-static void *worker_thread(void *);
-
-/* Starts a thread as long as we're below max_threads */
-static int start_thread(void)
-{
- pthread_t thread;
- int rc;
-
- pthread_mutex_lock(&worker_thread_count_mutex);
- if (worker_thread_count < max_threads) {
- if ((rc = pthread_create(&thread, &worker_thread_attr, worker_thread,
- &worker_thread_free_ids[worker_thread_count]))) {
-#ifdef PTHREAD_SETS_ERRNO
- rc = errno;
-#endif
- ap_log_error(APLOG_MARK, APLOG_ALERT, rc, ap_server_conf,
- "pthread_create: unable to create worker thread");
- /* In case system resources are maxxed out, we don't want
- Apache running away with the CPU trying to fork over and
- over and over again if we exit. */
- sleep(10);
- workers_may_exit = 1;
- pthread_mutex_unlock(&worker_thread_count_mutex);
- return 0;
- }
- else {
- worker_thread_count++;
- }
- }
- else {
- static int reported = 0;
-
- if (!reported) {
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, ap_server_conf,
- "server reached MaxThreadsPerChild setting, consider raising the"
- " MaxThreadsPerChild or NumServers settings");
- reported = 1;
- }
- pthread_mutex_unlock(&worker_thread_count_mutex);
- return 0;
- }
- pthread_mutex_unlock(&worker_thread_count_mutex);
- return 1;
-
-}
-/* Sets workers_may_exit if we received a character on the pipe_of_death */
-static void check_pipe_of_death(void)
-{
- pthread_mutex_lock(&pipe_of_death_mutex);
- if (!workers_may_exit) {
- int ret;
- char pipe_read_char;
- apr_size_t n = 1;
-
- ret = apr_recv(listenfds[0], &pipe_read_char, &n);
- if (APR_STATUS_IS_EAGAIN(ret)) {
- /* It lost the lottery. It must continue to suffer
- * through a life of servitude. */
- }
- else {
- /* It won the lottery (or something else is very
- * wrong). Embrace death with open arms. */
- workers_may_exit = 1;
- }
- }
- pthread_mutex_unlock(&pipe_of_death_mutex);
-}
-
-/* idle_thread_count should be incremented before starting a worker_thread */
-
-static void *worker_thread(void *arg)
-{
- apr_socket_t *csd = NULL;
- apr_pool_t *tpool; /* Pool for this thread */
- apr_pool_t *ptrans; /* Pool for per-transaction stuff */
- apr_socket_t *sd = NULL;
- int srv;
- int curr_pollfd, last_pollfd = 0;
- int thread_just_started = 1;
- int thread_num = *((int *) arg);
- long conn_id = child_num * HARD_THREAD_LIMIT + thread_num;
- apr_pollfd_t *pollset;
- int n;
- apr_status_t rv;
-
- pthread_mutex_lock(&thread_pool_parent_mutex);
- apr_pool_create(&tpool, thread_pool_parent);
- pthread_mutex_unlock(&thread_pool_parent_mutex);
- apr_pool_create(&ptrans, tpool);
-
- (void) ap_update_child_status(child_num, thread_num, SERVER_STARTING,
- (request_rec *) NULL);
-
-
- apr_poll_setup(&pollset, num_listenfds+1, tpool);
- for(n=0 ; n <= num_listenfds ; ++n)
- apr_poll_socket_add(pollset, listenfds[n], APR_POLLIN);
-
- while (1) {
- workers_may_exit |= (max_requests_per_child != 0) && (requests_this_child <= 0);
- if (workers_may_exit) break;
- if (!thread_just_started) {
- pthread_mutex_lock(&idle_thread_count_mutex);
- if (idle_thread_count < max_spare_threads) {
- idle_thread_count++;
- pthread_mutex_unlock(&idle_thread_count_mutex);
- }
- else {
- pthread_mutex_unlock(&idle_thread_count_mutex);
- break;
- }
- }
- else {
- thread_just_started = 0;
- }
-
- (void) ap_update_child_status(child_num, thread_num, SERVER_READY,
- (request_rec *) NULL);
-
- if ((rv = SAFE_ACCEPT(apr_lock_aquire(accept_mutex)))
- != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_EMERG, rv, ap_server_conf,
- "apr_lock_aquire failed. Attempting to shutdown "
- "process gracefully.");
- workers_may_exit = 1;
- }
-
- while (!workers_may_exit) {
- apr_int16_t event;
- srv = apr_poll(pollset, &n, -1);
-
- if (srv != APR_SUCCESS) {
- if (APR_STATUS_IS_EINTR(srv)) {
- continue;
- }
-
- /* apr_poll() will only return errors in catastrophic
- * circumstances. Let's try exiting gracefully, for now. */
- ap_log_error(APLOG_MARK, APLOG_ERR, srv, (const server_rec *)
- ap_server_conf, "apr_poll: (listen)");
- workers_may_exit = 1;
- }
- if (workers_may_exit) break;
-
- apr_poll_revents_get(&event, listenfds[0], pollset);
- if (event & APR_POLLIN) {
- /* A process got a signal on the shutdown pipe. Check if we're
- * the lucky process to die. */
- check_pipe_of_death();
- continue;
- }
-
- if (num_listenfds == 1) {
- sd = ap_listeners->sd;
- goto got_fd;
- }
- else {
- /* find a listener */
- curr_pollfd = last_pollfd;
- do {
- curr_pollfd++;
- if (curr_pollfd > num_listenfds) {
- curr_pollfd = 1;
- }
- /* XXX: Should we check for POLLERR? */
- apr_poll_revents_get(&event, listenfds[curr_pollfd], pollset);
- if (event & APR_POLLIN) {
- last_pollfd = curr_pollfd;
- sd = listenfds[curr_pollfd];
- goto got_fd;
- }
- } while (curr_pollfd != last_pollfd);
- }
- }
- got_fd:
- if (!workers_may_exit) {
- if ((rv = apr_accept(&csd, sd, ptrans)) != APR_SUCCESS) {
- csd = NULL;
- ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf, "apr_accept");
- }
- if ((rv = SAFE_ACCEPT(apr_lock_release(accept_mutex)))
- != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_EMERG, rv, ap_server_conf,
- "apr_lock_release failed. Attempting to shutdown "
- "process gracefully.");
- workers_may_exit = 1;
- }
- pthread_mutex_lock(&idle_thread_count_mutex);
- if (idle_thread_count > min_spare_threads) {
- idle_thread_count--;
- }
- else {
- if (!start_thread()) {
- idle_thread_count--;
- }
- }
- pthread_mutex_unlock(&idle_thread_count_mutex);
- if (csd != NULL) {
- process_socket(ptrans, csd, conn_id);
- requests_this_child--;
- }
- } else {
- if ((rv = SAFE_ACCEPT(apr_lock_release(accept_mutex)))
- != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_EMERG, rv, ap_server_conf,
- "apr_lock_release failed. Attempting to shutdown "
- "process gracefully.");
- workers_may_exit = 1;
- }
- pthread_mutex_lock(&idle_thread_count_mutex);
- idle_thread_count--;
- pthread_mutex_unlock(&idle_thread_count_mutex);
- break;
- }
- apr_clear_pool(ptrans);
- }
-
- pthread_mutex_lock(&thread_pool_parent_mutex);
- ap_update_child_status(child_num, thread_num, SERVER_DEAD,
- (request_rec *) NULL);
- pthread_mutex_unlock(&thread_pool_parent_mutex);
- pthread_mutex_lock(&worker_thread_count_mutex);
- worker_thread_count--;
- worker_thread_free_ids[worker_thread_count] = thread_num;
- if (worker_thread_count == 0) {
- /* All the threads have exited, now finish the shutdown process
- * by signalling the sigwait thread */
- kill(my_pid, SIGTERM);
- }
- pthread_mutex_unlock(&worker_thread_count_mutex);
-
- return NULL;
-}
-
-static void child_main(int child_num_arg)
-{
- sigset_t sig_mask;
- int signal_received;
- int i;
- ap_listen_rec *lr;
- apr_status_t rv;
-
- my_pid = getpid();
- child_num = child_num_arg;
- apr_pool_create(&pchild, pconf);
-
- /*stuff to do before we switch id's, so we have permissions.*/
-
- rv = SAFE_ACCEPT(apr_lock_child_init(&accept_mutex, lock_fname,
- pchild));
- if (rv != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_EMERG, rv, ap_server_conf,
- "Couldn't initialize cross-process lock in child");
- clean_child_exit(APEXIT_CHILDFATAL);
- }
-
- if (unixd_setup_child()) {
- clean_child_exit(APEXIT_CHILDFATAL);
- }
-
- ap_child_init_hook(pchild, ap_server_conf);
-
- /*done with init critical section */
-
- /* All threads should mask signals out, accoring to sigwait(2) man page */
- sigfillset(&sig_mask);
-
-#ifdef SIGPROCMASK_SETS_THREAD_MASK
- if (sigprocmask(SIG_SETMASK, &sig_mask, NULL) != 0) {
- ap_log_error(APLOG_MARK, APLOG_ALERT, errno, ap_server_conf, "sigprocmask");
- }
-#else
- if ((rv = pthread_sigmask(SIG_SETMASK, &sig_mask, NULL)) != 0) {
-#ifdef PTHREAD_SETS_ERRNO
- rv = errno;
-#endif
- ap_log_error(APLOG_MARK, APLOG_ALERT, rv, ap_server_conf,
- "pthread_sigmask");
- }
-#endif
-
- requests_this_child = max_requests_per_child;
-
- /* Set up the pollfd array */
- listenfds = apr_pcalloc(pchild, sizeof(*listenfds) * (num_listenfds + 1));
-#if APR_FILES_AS_SOCKETS
- apr_socket_from_file(&listenfds[0], pipe_of_death_in);
-#endif
- for (lr = ap_listeners, i = 1; i <= num_listenfds; lr = lr->next, ++i)
- listenfds[i]=lr->sd;
-
- /* Setup worker threads */
-
- if (threads_to_start > max_threads) {
- threads_to_start = max_threads;
- }
- idle_thread_count = threads_to_start;
- worker_thread_count = 0;
- for (i = 0; i < max_threads; i++) {
- worker_thread_free_ids[i] = i;
- }
- apr_pool_create(&thread_pool_parent, pchild);
- pthread_mutex_init(&thread_pool_parent_mutex, NULL);
- pthread_mutex_init(&idle_thread_count_mutex, NULL);
- pthread_mutex_init(&worker_thread_count_mutex, NULL);
- pthread_mutex_init(&pipe_of_death_mutex, NULL);
- pthread_attr_init(&worker_thread_attr);
-#ifdef PTHREAD_ATTR_SETDETACHSTATE_ARG2_ADDR
- {
- int on = 1;
-
- pthread_attr_setdetachstate(&worker_thread_attr, &on);
- }
-#else
- pthread_attr_setdetachstate(&worker_thread_attr, PTHREAD_CREATE_DETACHED);
-#endif
-
- /* We are creating worker threads right now */
- for (i=0; i < threads_to_start; i++) {
- /* start_thread shouldn't fail here */
- if (!start_thread()) {
- break;
- }
- }
-
- /* This thread will be the one responsible for handling signals */
- sigemptyset(&sig_mask);
- sigaddset(&sig_mask, SIGTERM);
- sigaddset(&sig_mask, SIGINT);
- ap_sigwait(&sig_mask, &signal_received);
- switch (signal_received) {
- case SIGTERM:
- case SIGINT:
- just_die(signal_received);
- break;
- default:
- ap_log_error(APLOG_MARK, APLOG_ALERT, errno, ap_server_conf,
- "received impossible signal: %d", signal_received);
- just_die(SIGTERM);
- }
-}
-
-static int make_child(server_rec *s, int slot)
-{
- int pid;
-
- if (slot + 1 > ap_max_daemons_limit) {
- ap_max_daemons_limit = slot + 1;
- }
-
- if (one_process) {
- set_signals();
- ap_child_table[slot].pid = getpid();
- ap_child_table[slot].status = SERVER_ALIVE;
- child_main(slot);
- }
-
- (void) ap_update_child_status(slot, 0, SERVER_STARTING, (request_rec *) NULL);
-
- if ((pid = fork()) == -1) {
- ap_log_error(APLOG_MARK, APLOG_ERR, errno, s,
- "fork: Unable to fork new process");
- (void) ap_update_child_status(slot, 0, SERVER_DEAD, (request_rec *) NULL);
- /* In case system resources are maxxed out, we don't want
- Apache running away with the CPU trying to fork over and
- over and over again. */
- sleep(10);
-
- return -1;
- }
-
- if (!pid) {
-#ifdef AIX_BIND_PROCESSOR
- /* By default, AIX binds to a single processor. This bit unbinds
- children which will then bind to another CPU.
- */
-#include <sys/processor.h>
- int status = bindprocessor(BINDPROCESS, (int)getpid(),
- PROCESSOR_CLASS_ANY);
- if (status != OK)
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING, errno,
- ap_server_conf, "processor unbind failed %d", status);
-#endif
-
- RAISE_SIGSTOP(MAKE_CHILD);
-
- /* XXX - For an unthreaded server, a signal handler will be necessary
- apr_signal(SIGTERM, just_die);
- */
- child_main(slot);
-
- return 0;
- }
- /* else */
- ap_child_table[slot].pid = pid;
- ap_child_table[slot].status = SERVER_ALIVE;
-
- return 0;
-}
-
-/* start up a bunch of children */
-static int startup_children(int number_to_start)
-{
- int i;
-
- for (i = 0; number_to_start && i < num_daemons; ++i) {
- if (ap_child_table[i].pid) {
- continue;
- }
- if (make_child(ap_server_conf, i) < 0) {
- break;
- }
- --number_to_start;
- }
- return number_to_start;
-}
-
-
-/*
- * spawn_rate is the number of children that will be spawned on the
- * next maintenance cycle if there aren't enough servers. It is
- * doubled up to MAX_SPAWN_RATE, and reset only when a cycle goes by
- * without the need to spawn.
- */
-static int spawn_rate = 1;
-#ifndef MAX_SPAWN_RATE
-#define MAX_SPAWN_RATE (32)
-#endif
-static int hold_off_on_exponential_spawning;
-
-static void perform_child_maintenance(void)
-{
- int i;
- int free_length;
- int free_slots[MAX_SPAWN_RATE];
- int last_non_dead = -1;
-
- /* initialize the free_list */
- free_length = 0;
-
- for (i = 0; i < num_daemons; ++i) {
- if (ap_child_table[i].pid == 0) {
- if (free_length < spawn_rate) {
- free_slots[free_length] = i;
- ++free_length;
- }
- }
- else {
- last_non_dead = i;
- }
-
- if (i >= ap_max_daemons_limit && free_length >= spawn_rate) {
- break;
- }
- }
- ap_max_daemons_limit = last_non_dead + 1;
-
- if (free_length > 0) {
- for (i = 0; i < free_length; ++i) {
- make_child(ap_server_conf, free_slots[i]);
- }
- /* the next time around we want to spawn twice as many if this
- * wasn't good enough, but not if we've just done a graceful
- */
- if (hold_off_on_exponential_spawning) {
- --hold_off_on_exponential_spawning;
- }
- else if (spawn_rate < MAX_SPAWN_RATE) {
- spawn_rate *= 2;
- }
- }
- else {
- spawn_rate = 1;
- }
-}
-
-static void server_main_loop(int remaining_children_to_start)
-{
- int child_slot;
- apr_wait_t status;
- apr_proc_t pid;
- int i;
-
- while (!restart_pending && !shutdown_pending) {
- ap_wait_or_timeout(&status, &pid, pconf);
-
- if (pid.pid != -1) {
- ap_process_child_status(&pid, status);
- /* non-fatal death... note that it's gone in the child table and
- * clean out the status table. */
- child_slot = -1;
- for (i = 0; i < ap_max_daemons_limit; ++i) {
- if (ap_child_table[i].pid == pid.pid) {
- child_slot = i;
- break;
- }
- }
- if (child_slot >= 0) {
- ap_child_table[child_slot].pid = 0;
- ap_update_child_status(child_slot, i, SERVER_DEAD, (request_rec *) NULL);
-
- if (remaining_children_to_start
- && child_slot < num_daemons) {
- /* we're still doing a 1-for-1 replacement of dead
- * children with new children
- */
- make_child(ap_server_conf, child_slot);
- --remaining_children_to_start;
- }
-#if APR_HAS_OTHER_CHILD
- }
- else if (apr_proc_other_child_read(&pid, status) == 0) {
- /* handled */
-#endif
- }
- else if (is_graceful) {
- /* Great, we've probably just lost a slot in the
- * child table. Somehow we don't know about this
- * child.
- */
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING, 0,
- ap_server_conf,
- "long lost child came home! (pid %ld)",
- (long)pid.pid);
- }
- /* Don't perform idle maintenance when a child dies,
- * only do it when there's a timeout. Remember only a
- * finite number of children can die, and it's pretty
- * pathological for a lot to die suddenly.
- */
- continue;
- }
- else if (remaining_children_to_start) {
- /* we hit a 1 second timeout in which none of the previous
- * generation of children needed to be reaped... so assume
- * they're all done, and pick up the slack if any is left.
- */
- remaining_children_to_start = \
- startup_children(remaining_children_to_start);
- /* In any event we really shouldn't do the code below because
- * few of the servers we just started are in the IDLE state
- * yet, so we'd mistakenly create an extra server.
- */
- continue;
- }
-
- perform_child_maintenance();
- }
-}
-
-int ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s)
-{
- int remaining_children_to_start;
- int i;
- apr_status_t rv;
- apr_size_t one = 1;
-
- pconf = _pconf;
- ap_server_conf = s;
- if ((rv = apr_file_pipe_create(&pipe_of_death_in, &pipe_of_death_out, pconf))
- != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_ERR, rv,
- (const server_rec*) ap_server_conf,
- "apr_file_pipe_create (pipe_of_death)");
- exit(1);
- }
- if ((rv = apr_file_pipe_timeout_set(pipe_of_death_in, 0)) != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_ERR, rv,
- (const server_rec*) ap_server_conf,
- "apr_file_pipe_timeout_set (pipe_of_death)");
- exit(1);
- }
- ap_server_conf = s;
- if ((num_listenfds = ap_setup_listeners(ap_server_conf)) < 1) {
- /* XXX: hey, what's the right way for the mpm to indicate a fatal error? */
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ALERT, 0, s,
- "no listening sockets available, shutting down");
- return 1;
- }
- ap_log_pid(pconf, ap_pid_fname);
-
- /* Initialize cross-process accept lock */
- lock_fname = apr_psprintf(_pconf, "%s.%u",
- ap_server_root_relative(_pconf, lock_fname),
- my_pid);
- rv = SAFE_ACCEPT(apr_lock_create(&accept_mutex, APR_MUTEX,
- APR_LOCKALL, lock_fname, _pconf));
- if (rv != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s,
- "Couldn't create cross-process lock");
- return 1;
- }
-
- if (!is_graceful) {
- ap_create_scoreboard(pconf, SB_SHARED);
- }
- /* Initialize the child table */
- if (!is_graceful) {
- for (i = 0; i < HARD_SERVER_LIMIT; i++) {
- ap_child_table[i].pid = 0;
- }
- }
-
- set_signals();
-
- /* If we're doing a graceful_restart then we're going to see a lot
- * of children exiting immediately when we get into the main loop
- * below (because we just sent them SIGWINCH). This happens pretty
- * rapidly... and for each one that exits we'll start a new one until
- * we reach at least daemons_min_free. But we may be permitted to
- * start more than that, so we'll just keep track of how many we're
- * supposed to start up without the 1 second penalty between each fork.
- */
- remaining_children_to_start = num_daemons;
- if (!is_graceful) {
- remaining_children_to_start = \
- startup_children(remaining_children_to_start);
- }
- else {
- /* give the system some time to recover before kicking into
- * exponential mode */
- hold_off_on_exponential_spawning = 10;
- }
-
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0, ap_server_conf,
- "%s configured -- resuming normal operations",
- ap_get_server_version());
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, 0, ap_server_conf,
- "Server built: %s", ap_get_server_built());
- restart_pending = shutdown_pending = 0;
-
- server_main_loop(remaining_children_to_start);
-
- if (shutdown_pending) {
- /* Time to gracefully shut down:
- * Kill child processes, tell them to call child_exit, etc...
- */
- if (unixd_killpg(getpgrp(), SIGTERM) < 0) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf,
- "killpg SIGTERM");
- }
- ap_reclaim_child_processes(1); /* Start with SIGTERM */
-
- /* cleanup pid file on normal shutdown */
- {
- const char *pidfile = NULL;
- pidfile = ap_server_root_relative (pconf, ap_pid_fname);
- if ( pidfile != NULL && unlink(pidfile) == 0)
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, 0,
- ap_server_conf,
- "removed PID file %s (pid=%ld)",
- pidfile, (long)getpid());
- }
-
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0,
- ap_server_conf, "caught SIGTERM, shutting down");
-
- return 1;
- }
-
- /* we've been told to restart */
- apr_signal(SIGHUP, SIG_IGN);
-
- if (one_process) {
- /* not worth thinking about */
- return 1;
- }
-
- if (is_graceful) {
- char char_of_death = '!';
-
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0, ap_server_conf,
- "SIGWINCH received. Doing graceful restart");
-
- /* This is mostly for debugging... so that we know what is still
- * gracefully dealing with existing request.
- */
-
- for (i = 0; i < num_daemons; ++i) {
- if (ap_child_table[i].pid) {
- ap_child_table[i].status = SERVER_DYING;
- }
- }
- /* give the children the signal to die */
- for (i = 0; i < num_daemons;) {
- if ((rv = apr_file_write(pipe_of_death_out, &char_of_death, &one)) != APR_SUCCESS) {
- if (APR_STATUS_IS_EINTR(rv)) continue;
- ap_log_error(APLOG_MARK, APLOG_WARNING, rv, ap_server_conf,
- "write pipe_of_death");
- }
- i++;
- }
- }
- else {
- /* Kill 'em all. Since the child acts the same on the parents SIGTERM
- * and a SIGHUP, we may as well use the same signal, because some user
- * pthreads are stealing signals from us left and right.
- */
- if (unixd_killpg(getpgrp(), SIGTERM) < 0) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf,
- "killpg SIGTERM");
- }
- ap_reclaim_child_processes(1); /* Start with SIGTERM */
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0,
- ap_server_conf, "SIGHUP received. Attempting to restart");
- }
- return 0;
-}
-
-static void dexter_pre_config(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp)
-{
- static int restart_num = 0;
- int no_detach = 0;
-
- one_process = !!ap_exists_config_define("ONE_PROCESS");
- no_detach = !!ap_exists_config_define("NO_DETACH");
-
- /* sigh, want this only the second time around */
- if (restart_num++ == 1) {
- is_graceful = 0;
-
- if (!one_process && !no_detach) {
- apr_proc_detach();
- }
-
- my_pid = getpid();
- }
-
- unixd_pre_config(ptemp);
- ap_listen_pre_config();
- num_daemons = DEFAULT_NUM_DAEMON;
- threads_to_start = DEFAULT_START_THREAD;
- min_spare_threads = DEFAULT_MIN_SPARE_THREAD;
- max_spare_threads = DEFAULT_MAX_SPARE_THREAD;
- max_threads = HARD_THREAD_LIMIT;
- ap_pid_fname = DEFAULT_PIDLOG;
- ap_scoreboard_fname = DEFAULT_SCOREBOARD;
- lock_fname = DEFAULT_LOCKFILE;
- max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD;
-
- apr_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir));
-}
-
-static void dexter_hooks(apr_pool_t *p)
-{
- one_process = 0;
-
- ap_hook_pre_config(dexter_pre_config, NULL, NULL, APR_HOOK_MIDDLE);
-}
-
-static const char *set_pidfile(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- if (cmd->server->is_virtual) {
- return "PidFile directive not allowed in <VirtualHost>";
- }
- ap_pid_fname = arg;
- return NULL;
-}
-
-static const char *set_scoreboard(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- ap_scoreboard_fname = arg;
- return NULL;
-}
-
-static const char *set_lockfile(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- lock_fname = arg;
- return NULL;
-}
-static const char *set_num_daemons (cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- num_daemons = atoi(arg);
- if (num_daemons > HARD_SERVER_LIMIT) {
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- "WARNING: NumServers of %d exceeds compile time limit "
- "of %d servers,", num_daemons, HARD_SERVER_LIMIT);
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- " lowering NumServers to %d. To increase, please "
- "see the", HARD_SERVER_LIMIT);
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- " HARD_SERVER_LIMIT define in %s.",
- AP_MPM_HARD_LIMITS_FILE);
- num_daemons = HARD_SERVER_LIMIT;
- }
- else if (num_daemons < 1) {
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- "WARNING: Require NumServers > 0, setting to 1");
- num_daemons = 1;
- }
- return NULL;
-}
-
-static const char *set_threads_to_start (cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- threads_to_start = atoi(arg);
- if (threads_to_start > HARD_THREAD_LIMIT) {
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- "WARNING: StartThreads of %d exceeds compile time"
- " limit of %d threads,", threads_to_start,
- HARD_THREAD_LIMIT);
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- " lowering StartThreads to %d. To increase, please"
- " see the", HARD_THREAD_LIMIT);
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- " HARD_THREAD_LIMIT define in %s.",
- AP_MPM_HARD_LIMITS_FILE);
- }
- else if (threads_to_start < 1) {
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- "WARNING: Require StartThreads > 0, setting to 1");
- threads_to_start = 1;
- }
- return NULL;
-}
-
-static const char *set_min_spare_threads(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- min_spare_threads = atoi(arg);
- if (min_spare_threads <= 0) {
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- "WARNING: detected MinSpareThreads set to non-positive.");
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- "Resetting to 1 to avoid almost certain Apache failure.");
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- "Please read the documentation.");
- min_spare_threads = 1;
- }
-
- return NULL;
-}
-
-static const char *set_max_spare_threads(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- max_spare_threads = atoi(arg);
- if (max_spare_threads >= HARD_THREAD_LIMIT) {
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- "WARNING: detected MinSpareThreads set higher than");
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- "HARD_THREAD_LIMIT. Resetting to %d", HARD_THREAD_LIMIT);
- max_spare_threads = HARD_THREAD_LIMIT;
- }
- return NULL;
-}
-
-static const char *set_max_threads(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- max_threads = atoi(arg);
- if (max_threads > HARD_THREAD_LIMIT) {
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- "WARNING: detected MaxThreadsPerChild set higher than");
- ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
- "HARD_THREAD_LIMIT. Resetting to %d", HARD_THREAD_LIMIT);
- max_threads = HARD_THREAD_LIMIT;
- }
- return NULL;
-}
-
-static const char *set_max_requests(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- max_requests_per_child = atoi(arg);
-
- return NULL;
-}
-
-static const char *set_coredumpdir (cmd_parms *cmd, void *dummy, const char *arg)
-{
- apr_finfo_t finfo;
- const char *fname;
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- fname = ap_server_root_relative(cmd->pool, arg);
- if ((apr_stat(&finfo, fname, APR_FINFO_TYPE, cmd->pool) != APR_SUCCESS)
- || (finfo.filetype != APR_DIR)) {
- return apr_pstrcat(cmd->pool, "CoreDumpDirectory ", fname,
- " does not exist or is not a directory", NULL);
- }
- apr_cpystrn(ap_coredump_dir, fname, sizeof(ap_coredump_dir));
- return NULL;
-}
-
-static const command_rec dexter_cmds[] = {
-UNIX_DAEMON_COMMANDS
-LISTEN_COMMANDS
-AP_INIT_TAKE1("PidFile", set_pidfile, NULL, RSRC_CONF,
- "A file for logging the server process ID"),
-AP_INIT_TAKE1("ScoreBoardFile", set_scoreboard, NULL, RSRC_CONF,
- "A file for Apache to maintain runtime process management information"),
-AP_INIT_TAKE1("LockFile", set_lockfile, NULL, RSRC_CONF,
- "The lockfile used when Apache needs to lock the accept() call"),
-AP_INIT_TAKE1("NumServers", set_num_daemons, NULL, RSRC_CONF,
- "Number of children alive at the same time"),
-AP_INIT_TAKE1("StartThreads", set_threads_to_start, NULL, RSRC_CONF,
- "Number of threads each child creates"),
-AP_INIT_TAKE1("MinSpareThreads", set_min_spare_threads, NULL, RSRC_CONF,
- "Minimum number of idle threads per child, to handle request spikes"),
-AP_INIT_TAKE1("MaxSpareThreads", set_max_spare_threads, NULL, RSRC_CONF,
- "Maximum number of idle threads per child"),
-AP_INIT_TAKE1("MaxThreadsPerChild", set_max_threads, NULL, RSRC_CONF,
- "Maximum number of threads per child"),
-AP_INIT_TAKE1("MaxRequestsPerChild", set_max_requests, NULL, RSRC_CONF,
- "Maximum number of requests a particular child serves before dying."),
-AP_INIT_TAKE1("CoreDumpDirectory", set_coredumpdir, NULL, RSRC_CONF,
- "The location of the directory Apache changes to before dumping core"),
-{ NULL }
-};
-
-module AP_MODULE_DECLARE_DATA mpm_dexter_module = {
- MPM20_MODULE_STUFF,
- NULL, /* hook to run before apache parses args */
- NULL, /* create per-directory config structure */
- NULL, /* merge per-directory config structures */
- NULL, /* create per-server config structure */
- NULL, /* merge per-server config structures */
- dexter_cmds, /* command apr_table_t */
- dexter_hooks /* register_hooks */
-};
-
projects / apache / commitdiff