beos.c revision 87c654d68cd93c27c5884603ac00a30da809d735
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/* ====================================================================
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * The Apache Software License, Version 1.1
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes *
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * Copyright (c) 2000-2001 The Apache Software Foundation. All rights
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * reserved.
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg *
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * Redistribution and use in source and binary forms, with or without
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * modification, are permitted provided that the following conditions
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * are met:
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes *
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * 1. Redistributions of source code must retain the above copyright
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * notice, this list of conditions and the following disclaimer.
0662ed52e814f8f08ef0e09956413a792584eddffuankg *
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * 2. Redistributions in binary form must reproduce the above copyright
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * notice, this list of conditions and the following disclaimer in
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * the documentation and/or other materials provided with the
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * distribution.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes *
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * 3. The end-user documentation included with the redistribution,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * if any, must include the following acknowledgment:
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * "This product includes software developed by the
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * Apache Software Foundation (http://www.apache.org/)."
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * Alternately, this acknowledgment may appear in the software itself,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * if and wherever such third-party acknowledgments normally appear.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes *
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * 4. The names "Apache" and "Apache Software Foundation" must
70953fb44a7140fe206c3a5f011e24209c8c5c6abnicholes * not be used to endorse or promote products derived from this
70953fb44a7140fe206c3a5f011e24209c8c5c6abnicholes * software without prior written permission. For written
44f575c8cb19a7a5cd61664a7848be6bc197df02fuankg * permission, please contact apache@apache.org.
44f575c8cb19a7a5cd61664a7848be6bc197df02fuankg *
44f575c8cb19a7a5cd61664a7848be6bc197df02fuankg * 5. Products derived from this software may not be called "Apache",
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * nor may "Apache" appear in their name, without prior written
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * permission of the Apache Software Foundation.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes *
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * SUCH DAMAGE.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * ====================================================================
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes *
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * This software consists of voluntary contributions made by many
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * individuals on behalf of the Apache Software Foundation. For more
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * information on the Apache Software Foundation, please see
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * <http://www.apache.org/>.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes *
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * Portions of this software are based upon public domain software
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * originally written at the National Center for Supercomputing Applications,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * University of Illinois, Urbana-Champaign.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/* The new BeOS MPM!
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes *
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * This one basically is a single process multi threaded model, but
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * I couldn't be bothered adding the spmt_ to the front of the name!
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * Anyway, this is still under development so it isn't yet the default
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * choice.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#define CORE_PRIVATE
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "apr_strings.h"
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "apr_portable.h"
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "httpd.h"
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "http_main.h"
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "http_log.h"
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "http_config.h" /* for read_config */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "http_core.h" /* for get_remote_host */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "http_connection.h"
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "ap_mpm.h"
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "beosd.h"
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "ap_listen.h"
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "scoreboard.h"
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include <kernel/OS.h>
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg#include "mpm_common.h"
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include "mpm.h"
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include <unistd.h>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include <sys/socket.h>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#include <signal.h>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/*
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * Actual definitions of config globals
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesint ap_threads_per_child=HARD_THREAD_LIMIT; /* Worker threads per child */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic int ap_max_requests_per_child=0;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic const char *ap_pid_fname=NULL;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic int ap_threads_to_start=0;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic int min_spare_threads=0;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic int max_spare_threads=0;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic int ap_thread_limit=0;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic int num_listening_sockets = 0; /* set by open_listeners in ap_mpm_run */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic apr_socket_t ** listening_sockets;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesapr_lock_t *accept_mutex = NULL;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic apr_pool_t *pconf; /* Pool for config stuff */
311f02e5de127612b92a450204ab4bb26f90f6cefuankgstatic apr_pool_t *pchild; /* Pool for httpd child stuff */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic int server_pid;
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/* Keep track of the number of worker threads currently active */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic int worker_thread_count;
0a39e7683f6611d66c55712f50bb240428d832a1bnicholesapr_lock_t *worker_thread_count_mutex;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/* The structure used to pass unique initialization info to each thread */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholestypedef struct {
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes int slot;
311f02e5de127612b92a450204ab4bb26f90f6cefuankg apr_pool_t *tpool;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes} proc_info;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg/*
0662ed52e814f8f08ef0e09956413a792584eddffuankg * The max child slot ever assigned, preserved across restarts. Necessary
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * to deal with MaxClients changes across SIGWINCH restarts. We use this
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg * value to optimize routines that have to scan the entire scoreboard.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesint ap_max_child_assigned = -1;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesint ap_max_threads_limit = -1;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholeschar ap_coredump_dir[MAX_STRING_LEN];
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
ac7985784d08a3655291f24f711812b4d8b1cbcffuankgstatic apr_socket_t *udp_sock;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic apr_sockaddr_t *udp_sa;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/* shared http_main globals... */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
0662ed52e814f8f08ef0e09956413a792584eddffuankgserver_rec *ap_server_conf;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/* one_process */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic int one_process = 0;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
0662ed52e814f8f08ef0e09956413a792584eddffuankg#ifdef DEBUG_SIGSTOP
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesint raise_sigstop_flags;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes#endif
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/* a clean exit from a child with proper cleanup
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes static void clean_child_exit(int code) __attribute__ ((noreturn)); */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic void clean_child_exit(int code)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes{
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes if (pchild)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes apr_pool_destroy(pchild);
0662ed52e814f8f08ef0e09956413a792584eddffuankg exit(code);
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes}
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/* handle all varieties of core dumping signals */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic void sig_coredump(int sig)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes{
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes chdir(ap_coredump_dir);
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes signal(sig, SIG_DFL);
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes kill(server_pid, sig);
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes /* At this point we've got sig blocked, because we're still inside
311f02e5de127612b92a450204ab4bb26f90f6cefuankg * the signal handler. When we leave the signal handler it will
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * be unblocked, and we'll take the signal... and coredump or whatever
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * is appropriate for this particular Unix. In addition the parent
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * will see the real signal we received -- whereas if we called
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * abort() here, the parent would only see SIGABRT.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes}
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/*****************************************************************
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * Connection structures and accounting...
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/* volatile just in case */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic int volatile shutdown_pending;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic int volatile restart_pending;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic int volatile is_graceful;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesap_generation_t volatile ap_my_generation = 0;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/*
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * ap_start_shutdown() and ap_start_restart(), below, are a first stab at
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * functions to initiate shutdown or restart without relying on signals.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * Previously this was initiated in sig_term() and restart() signal handlers,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * but we want to be able to start a shutdown/restart from other sources --
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * e.g. on Win32, from the service manager. Now the service manager can
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * call ap_start_shutdown() or ap_start_restart() as appropiate. Note that
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * these functions can also be called by the child processes, since global
cf7ca2f9eaa6523fefcccba4287b91637391fb51fuankg * variables are no longer used to pass on the required action to the parent.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes *
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * These should only be called from the parent process itself, since the
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * parent process will use the shutdown_pending and restart_pending variables
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * to determine whether to shutdown or restart. The child process should
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * call signal_parent() directly to tell the parent to die -- this will
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * cause neither of those variable to be set, which the parent will
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * assume means something serious is wrong (which it will be, for the
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * child to force an exit) and so do an exit anyway.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes */
9046ab142ed19505e034af0afb8c15be512b8526bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic void ap_start_shutdown(void)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes{
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes if (shutdown_pending == 1) {
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes /* Um, is this _probably_ not an error, if the user has
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * tried to do a shutdown twice quickly, so we won't
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes * worry about reporting it.
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes return;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes }
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes shutdown_pending = 1;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes}
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes/* do a graceful restart if graceful == 1 */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic void ap_start_restart(int graceful)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes{
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes if (restart_pending == 1) {
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes /* Probably not an error - don't bother reporting it */
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes return;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes }
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes restart_pending = 1;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes is_graceful = graceful;
8ffac2c334103c0336602aaede650cb578611151fuankg if (is_graceful){
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes apr_pool_cleanup_kill(pconf, NULL, ap_cleanup_scoreboard);
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes }
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes}
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg
609ef720afd62ca63391c9fdb415cd2faf29aa46bnicholesstatic void sig_term(int sig)
609ef720afd62ca63391c9fdb415cd2faf29aa46bnicholes{
609ef720afd62ca63391c9fdb415cd2faf29aa46bnicholes ap_start_shutdown();
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg}
609ef720afd62ca63391c9fdb415cd2faf29aa46bnicholes
ac7985784d08a3655291f24f711812b4d8b1cbcffuankgstatic void restart(int sig)
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg{
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes ap_start_restart(sig == SIGWINCH);
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes}
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic void tell_workers_to_exit(void)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes{
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg apr_size_t len;
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg int i = 0;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes for (i = 0 ; i < ap_max_child_assigned; i++){
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes len = 4;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes if (apr_sendto(udp_sock, udp_sa, 0, "die!", &len) != APR_SUCCESS)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes break;
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg }
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes}
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholesstatic void set_signals(void)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes{
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes struct sigaction sa;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes sigemptyset(&sa.sa_mask);
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes sa.sa_flags = 0;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes if (!one_process) {
ac7985784d08a3655291f24f711812b4d8b1cbcffuankg sa.sa_handler = sig_coredump;
0662ed52e814f8f08ef0e09956413a792584eddffuankg
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes if (sigaction(SIGSEGV, &sa, NULL) < 0)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGSEGV)");
00d1c0c914426a97022d8205a875c48b211001c2fuankg if (sigaction(SIGBUS, &sa, NULL) < 0)
2a3d4464b68bcf6173f675479b4ec681a83f4bd9fuankg ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGBUS)");
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes if (sigaction(SIGABRT, &sa, NULL) < 0)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGABRT)");
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes if (sigaction(SIGILL, &sa, NULL) < 0)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGILL)");
8410c53aaf5e0372a19d5f4d2bc696b9c609ce3cbnicholes sa.sa_flags = 0;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes }
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes sa.sa_handler = sig_term;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes if (sigaction(SIGTERM, &sa, NULL) < 0)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGTERM)");
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes if (sigaction(SIGINT, &sa, NULL) < 0)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGINT)");
0662ed52e814f8f08ef0e09956413a792584eddffuankg
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes sa.sa_handler = SIG_IGN;
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes if (sigaction(SIGPIPE, &sa, NULL) < 0)
ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGPIPE)");
/* 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)");
}
/*****************************************************************
* 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, int my_child_num)
{
conn_rec *current_conn;
long conn_id = my_child_num;
int csd;
(void)apr_os_sock_get(&csd, sock);
if (csd >= FD_SETSIZE) {
ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING, 0, NULL,
"filedescriptor (%u) larger than FD_SETSIZE (%u) "
"found, you probably need to rebuild Apache with a "
"larger FD_SETSIZE", csd, FD_SETSIZE);
apr_socket_close(sock);
return;
}
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 int32 worker_thread(void * dummy)
{
proc_info * ti = dummy;
int child_slot = ti->slot;
apr_pool_t *tpool = ti->tpool;
apr_socket_t *csd = NULL;
apr_pool_t *ptrans; /* Pool for per-transaction stuff */
apr_socket_t *sd = NULL;
apr_status_t rv = APR_EINIT;
int srv , n;
int curr_pollfd = 0, last_pollfd = 0;
sigset_t sig_mask;
int requests_this_child = ap_max_requests_per_child;
apr_pollfd_t *pollset;
/* each worker thread is in control of it's own destiny...*/
int this_worker_should_exit = 0;
free(ti);
/* block the signals for this thread */
sigfillset(&sig_mask);
sigprocmask(SIG_BLOCK, &sig_mask, NULL);
apr_pool_create(&ptrans, tpool);
apr_lock_acquire(worker_thread_count_mutex);
worker_thread_count++;
apr_lock_release(worker_thread_count_mutex);
(void) ap_update_child_status(0, child_slot, SERVER_STARTING,
(request_rec*)NULL);
apr_poll_setup(&pollset, num_listening_sockets, tpool);
for(n=0 ; n <= num_listening_sockets ; n++)
apr_poll_socket_add(pollset, listening_sockets[n], APR_POLLIN);
while (1) {
/* If we're here, then chances are (unless we're the first thread created) we're going
to be held up on the accept_muetx, so doing this here shouldn't be a peformance hit.
If it is, you probably need more threads...
*/
this_worker_should_exit |= (ap_max_requests_per_child != 0) && (requests_this_child <= 0);
if (this_worker_should_exit) break;
(void) ap_update_child_status(0, child_slot, SERVER_READY,
(request_rec*)NULL);
apr_lock_acquire(accept_mutex);
while (!this_worker_should_exit) {
apr_int16_t event;
apr_status_t ret;
ret = apr_poll(pollset, &srv, -1);
if (ret != APR_SUCCESS) {
if (APR_STATUS_IS_EINTR(ret)) {
continue;
}
/* poll() will only return errors in catastrophic
* circumstances. Let's try exiting gracefully, for now. */
ap_log_error(APLOG_MARK, APLOG_ERR, ret, (const server_rec *)
ap_server_conf, "apr_poll: (listen)");
this_worker_should_exit = 1;
} else {
/* if we've bailed in apr_poll what's the point of trying to use the data? */
apr_poll_revents_get(&event, listening_sockets[0], pollset);
if (event & APR_POLLIN){
apr_sockaddr_t *rec_sa;
char *tmpbuf = apr_pcalloc(ptrans, sizeof(char) * 5);
apr_size_t len = 5;
apr_sockaddr_info_get(&rec_sa, "127.0.0.1", APR_UNSPEC, 7772, 0, ptrans);
if ((ret = apr_recvfrom(rec_sa, listening_sockets[0], 0, tmpbuf, &len))
!= APR_SUCCESS){
ap_log_error(APLOG_MARK, APLOG_ERR, ret, NULL,
"error getting data from UDP!!");
}else {
/* add checking??? */
}
this_worker_should_exit = 1;
}
}
if (this_worker_should_exit) break;
if (num_listening_sockets == 1) {
sd = ap_listeners->sd;
goto got_fd;
}
else {
/* find a listener */
curr_pollfd = last_pollfd;
do {
curr_pollfd++;
if (curr_pollfd > num_listening_sockets)
curr_pollfd = 1;
/* Get the revent... */
apr_poll_revents_get(&event, listening_sockets[curr_pollfd], pollset);
if (event & APR_POLLIN) {
last_pollfd = curr_pollfd;
sd = listening_sockets[curr_pollfd];
goto got_fd;
}
} while (curr_pollfd != last_pollfd);
}
}
got_fd:
if (!this_worker_should_exit) {
rv = apr_accept(&csd, sd, ptrans);
apr_lock_release(accept_mutex);
if (rv != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf,
"apr_accept");
} else {
process_socket(ptrans, csd, child_slot);
requests_this_child--;
}
}
else {
apr_lock_release(accept_mutex);
break;
}
apr_pool_clear(ptrans);
}
ap_update_child_status(0, child_slot, SERVER_DEAD, (request_rec*)NULL);
apr_lock_acquire(worker_thread_count_mutex);
worker_thread_count--;
apr_lock_release(worker_thread_count_mutex);
return (0);
}
static int make_worker(server_rec *s, int slot)
{
thread_id tid;
proc_info *my_info = (proc_info *)malloc(sizeof(proc_info)); /* freed by thread... */
if (my_info == NULL) {
ap_log_error(APLOG_MARK, APLOG_ALERT, errno, ap_server_conf,
"malloc: out of memory");
clean_child_exit(APEXIT_CHILDFATAL);
}
my_info->slot = slot;
apr_pool_create(&my_info->tpool, pchild);
if (slot + 1 > ap_max_child_assigned)
ap_max_child_assigned = slot + 1;
if (one_process) {
set_signals();
ap_scoreboard_image->parent[0].pid = getpid();
return 0;
}
(void) ap_update_child_status(0, slot, SERVER_STARTING, (request_rec*)NULL);
tid = spawn_thread(worker_thread, "apache_worker", B_NORMAL_PRIORITY,
my_info);
if (tid < B_NO_ERROR) {
ap_log_error(APLOG_MARK, APLOG_ERR, errno, s,
"spawn_thread: Unable to start a new 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. */
(void) ap_update_child_status(0, slot, SERVER_DEAD,
(request_rec*)NULL);
sleep(10);
free(my_info);
return -1;
}
resume_thread(tid);
ap_scoreboard_image->servers[0][slot].tid = tid;
return 0;
}
/* start up a bunch of children */
static void startup_threads(int number_to_start)
{
int i;
for (i = 0; number_to_start && i < ap_thread_limit; ++i) {
if (ap_scoreboard_image->servers[0][i].tid) {
continue;
}
if (make_worker(ap_server_conf, i) < 0) {
break;
}
--number_to_start;
}
}
/*
* spawn_rate is the number of children that will be spawned on the
* next maintenance cycle if there aren't enough idle 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_idle_server_maintenance(void)
{
int i;
int free_length;
int free_slots[MAX_SPAWN_RATE];
int last_non_dead;
/* initialize the free_list */
free_length = 0;
for (i = 0; i < ap_thread_limit; ++i) {
if (ap_scoreboard_image->servers[0][i].tid == 0) {
if (free_length < spawn_rate) {
free_slots[free_length] = i;
++free_length;
}
}
else {
last_non_dead = i;
}
if (i >= ap_max_child_assigned && free_length >= spawn_rate) {
break;
}
}
ap_max_child_assigned = last_non_dead + 1;
if (free_length > 0) {
for (i = 0; i < free_length; ++i) {
make_worker(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_threads_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 >= 0) {
ap_process_child_status(&pid, status);
/* non-fatal death... note that it's gone in the scoreboard. */
child_slot = -1;
for (i = 0; i < ap_max_child_assigned; ++i) {
if (ap_scoreboard_image->servers[0][i].tid == pid.pid) {
child_slot = i;
break;
}
}
if (child_slot >= 0) {
ap_scoreboard_image->servers[0][child_slot].tid = 0;
(void) ap_update_child_status(0, child_slot, SERVER_DEAD, (request_rec*)NULL);
if (remaining_threads_to_start
&& child_slot < ap_thread_limit) {
/* we're still doing a 1-for-1 replacement of dead
* children with new children
*/
make_worker(ap_server_conf, child_slot);
--remaining_threads_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
* scoreboard. 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)", 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_threads_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.
*/
startup_threads(remaining_threads_to_start);
remaining_threads_to_start = 0;
/* 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_idle_server_maintenance();
}
}
AP_DECLARE(apr_status_t) ap_mpm_query(int query_code, int *result)
{
switch(query_code){
case AP_MPMQ_MAX_DAEMONS:
*result = ap_max_child_assigned;
return APR_SUCCESS;
case AP_MPMQ_IS_THREADED:
*result = AP_MPMQ_DYNAMIC;
return APR_SUCCESS;
case AP_MPMQ_IS_FORKED:
*result = AP_MPMQ_NOT_SUPPORTED;
return APR_SUCCESS;
case AP_MPMQ_HARD_LIMIT_DAEMONS:
*result = HARD_SERVER_LIMIT;
return APR_SUCCESS;
case AP_MPMQ_HARD_LIMIT_THREADS:
*result = HARD_THREAD_LIMIT;
return APR_SUCCESS;
case AP_MPMQ_MAX_THREADS:
*result = ap_threads_per_child;
return APR_SUCCESS;
}
return APR_ENOTIMPL;
}
int ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s)
{
int remaining_threads_to_start, i,j;
apr_status_t rv;
ap_listen_rec *lr;
pconf = _pconf;
ap_server_conf = s;
ap_scoreboard_fname = DEFAULT_SCOREBOARD;
/* BeOS R5 doesn't support pipes on select() calls, so we use a
UDP socket as these are supported in both R5 and BONE. If we only cared
about BONE we'd use a pipe, but there it is.
As we have UDP support in APR, now use the APR functions and check all the
return values...
*/
if (apr_sockaddr_info_get(&udp_sa, "127.0.0.1", APR_UNSPEC, 7772, 0, _pconf)
!= APR_SUCCESS){
ap_log_error(APLOG_MARK, APLOG_ALERT, errno, s,
"couldn't create control socket information, shutting down");
return 1;
}
if (apr_socket_create(&udp_sock, udp_sa->sa.sin.sin_family, SOCK_DGRAM,
_pconf) != APR_SUCCESS){
ap_log_error(APLOG_MARK, APLOG_ALERT, errno, s,
"couldn't create control socket, shutting down");
return 1;
}
if (apr_bind(udp_sock, udp_sa) != APR_SUCCESS){
ap_log_error(APLOG_MARK, APLOG_ALERT, errno, s,
"couldn't bind UDP socket!");
return 1;
}
if ((num_listening_sockets = ap_setup_listeners(ap_server_conf)) < 1) {
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);
/*
* Create our locks...
*/
/* accept_mutex
* used to lock around select so we only have one thread
* in select at a time
*/
if ((rv = apr_lock_create(&accept_mutex, APR_MUTEX, APR_CROSS_PROCESS,
NULL, pconf)) != APR_SUCCESS) {
/* tsch tsch, can't have more than one thread in the accept loop
at a time so we need to fall on our sword... */
ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s,
"Couldn't create accept lock");
return 1;
}
/* worker_thread_count_mutex
* locks the worker_thread_count so we have ana ccurate count...
*/
if ((rv = apr_lock_create(&worker_thread_count_mutex, APR_MUTEX, APR_CROSS_PROCESS,
NULL, pconf)) != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s,
"Couldn't create worker thread count lock");
return 1;
}
/*
* Startup/shutdown...
*/
if (!is_graceful)
ap_create_scoreboard(pconf, SB_SHARED);
if (!is_graceful) {
for (i = 0; i < HARD_SERVER_LIMIT; i++) {
ap_scoreboard_image->parent[i].pid = 0;
for (j = 0;j < HARD_THREAD_LIMIT; j++)
ap_scoreboard_image->servers[i][j].tid = 0;
}
}
if (HARD_SERVER_LIMIT == 1)
ap_scoreboard_image->parent[0].pid = getpid();
set_signals();
/* Sanity checks to avoid thrashing... */
if (max_spare_threads < min_spare_threads )
max_spare_threads = min_spare_threads;
/* If we're doing a graceful_restart then we're going to see a lot
* of threads 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 threads_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_threads_to_start = ap_threads_to_start;
/* sanity check on the number to start... */
if (remaining_threads_to_start > ap_thread_limit) {
remaining_threads_to_start = ap_thread_limit;
}
/* setup the child pool to use for the workers. Each worker creates
* a seperate pool of it's own to use.
*/
apr_pool_create(&pchild, pconf);
ap_run_child_init(pchild, ap_server_conf);
/* Now that we have the child pool (pchild) we can allocate
* the listenfds and creat the pollset...
*/
listening_sockets = apr_palloc(pchild,
sizeof(*listening_sockets) * (num_listening_sockets + 1));
listening_sockets[0] = udp_sock;
for (lr = ap_listeners, i = 1; i <= num_listening_sockets; lr = lr->next, ++i)
listening_sockets[i]=lr->sd;
/* we assume all goes OK...hmm might want to check that! */
if (!is_graceful) {
startup_threads(remaining_threads_to_start);
remaining_threads_to_start = 0;
}
else {
/* give the system some time to recover before kicking into
* exponential mode */
hold_off_on_exponential_spawning = 10;
}
/*
* record that we've entered the world !
*/
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;
/*
* main_loop until it's all over
*/
server_main_loop(remaining_threads_to_start);
tell_workers_to_exit(); /* if we get here we're exiting... */
sleep(1); /* give them a brief chance to exit */
/* close the UDP socket we've been using... */
apr_socket_close(listening_sockets[0]);
/*
* If we get here we're shutting down...
*/
if (shutdown_pending) {
/* Time to gracefully shut down:
* Kill child processes, tell them to call child_exit, etc...
*/
if (beosd_killpg(getpgrp(), SIGTERM) < 0)
ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf,
"killpg 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());
}
/* use ap_reclaim_child_processes starting with SIGTERM */
ap_reclaim_child_processes(1);
/* record the shutdown in the log */
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 */
signal(SIGHUP, SIG_IGN);
if (one_process) {
return 1;
}
if (is_graceful) {
ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0, ap_server_conf,
"SIGWINCH received. Doing graceful restart");
}
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.
*/
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");
}
/* just before we go, tidy up the locks we've created to prevent a
* potential leak of semaphores... */
apr_lock_destroy(worker_thread_count_mutex);
apr_lock_destroy(accept_mutex);
return 0;
}
static void beos_pre_config(apr_pool_t *pconf, 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();
server_pid = getpid();
}
beosd_pre_config();
ap_listen_pre_config();
ap_threads_to_start = DEFAULT_START_THREADS;
min_spare_threads = DEFAULT_MIN_FREE_THREADS;
max_spare_threads = DEFAULT_MAX_FREE_THREADS;
ap_thread_limit = HARD_THREAD_LIMIT;
ap_threads_per_child = DEFAULT_THREADS_PER_CHILD;
ap_pid_fname = DEFAULT_PIDLOG;
ap_scoreboard_fname = DEFAULT_SCOREBOARD;
ap_max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD;
apr_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir));
}
static void beos_hooks(apr_pool_t *p)
{
one_process = 0;
ap_hook_pre_config(beos_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_daemons_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;
}
ap_threads_to_start = atoi(arg);
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);
return NULL;
}
static const char *set_server_limit (cmd_parms *cmd, void *dummy, const char *arg)
{
const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
if (err != NULL) {
return err;
}
ap_thread_limit = atoi(arg);
if (ap_thread_limit > HARD_SERVER_LIMIT) {
ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
"WARNING: MaxClients of %d exceeds compile time limit "
"of %d servers,", ap_thread_limit, HARD_SERVER_LIMIT);
ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
" lowering MaxClients 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 src/include/httpd.h.");
ap_thread_limit = HARD_SERVER_LIMIT;
}
else if (ap_thread_limit < 1) {
ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
"WARNING: Require MaxClients > 0, setting to 1");
ap_thread_limit = 1;
}
return NULL;
}
static const char *set_threads_per_child (cmd_parms *cmd, void *dummy, const char *arg)
{
const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
if (err != NULL) {
return err;
}
ap_threads_per_child = atoi(arg);
if (ap_threads_per_child > HARD_THREAD_LIMIT) {
ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
"WARNING: ThreadsPerChild of %d exceeds compile time"
"limit of %d threads,", ap_threads_per_child,
HARD_THREAD_LIMIT);
ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
" lowering ThreadsPerChild 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 (ap_threads_per_child < 1) {
ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
"WARNING: Require ThreadsPerChild > 0, setting to 1");
ap_threads_per_child = 1;
}
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;
}
ap_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 beos_cmds[] = {
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( "StartServers", set_daemons_to_start, NULL, RSRC_CONF,
"Number of child processes launched at server startup"),
AP_INIT_TAKE1( "MinSpareThreads", set_min_spare_threads, NULL, RSRC_CONF,
"Minimum number of idle children, to handle request spikes"),
AP_INIT_TAKE1( "MaxSpareThreads", set_max_spare_threads, NULL, RSRC_CONF,
"Maximum number of idle children" ),
AP_INIT_TAKE1( "MaxClients", set_server_limit, NULL, RSRC_CONF,
"Maximum number of children alive at the same time" ),
AP_INIT_TAKE1( "ThreadsPerChild", set_threads_per_child, NULL, RSRC_CONF,
"Number of threads each child creates" ),
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_beos_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 */
beos_cmds, /* command apr_table_t */
beos_hooks /* register_hooks */
};