1784 lines
66 KiB
C
1784 lines
66 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef WIN32
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#include "httpd.h"
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#include "http_main.h"
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#include "http_log.h"
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#include "http_config.h" /* for read_config */
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#include "http_core.h" /* for get_remote_host */
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#include "http_connection.h"
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#include "apr_portable.h"
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#include "apr_thread_proc.h"
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#include "apr_getopt.h"
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#include "apr_strings.h"
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#include "apr_lib.h"
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#include "apr_shm.h"
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#include "apr_thread_mutex.h"
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#include "ap_mpm.h"
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#include "apr_general.h"
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#include "ap_config.h"
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#include "ap_listen.h"
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#include "mpm_default.h"
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#include "mpm_winnt.h"
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#include "mpm_common.h"
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#include <malloc.h>
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#include "apr_atomic.h"
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#include "scoreboard.h"
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#ifdef __WATCOMC__
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#define _environ environ
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#endif
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#ifndef STACK_SIZE_PARAM_IS_A_RESERVATION /* missing on MinGW */
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#define STACK_SIZE_PARAM_IS_A_RESERVATION 0x00010000
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#endif
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/* Because ap_setup_listeners() is skipped in the child, any merging
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* of [::]:80 and 0.0.0.0:80 for AP_ENABLE_V4_MAPPED in the parent
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* won't have taken place in the child, so the child will expect to
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* read two sockets for "Listen 80" but the parent will send only
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* one.
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*/
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#ifdef AP_ENABLE_V4_MAPPED
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#error The WinNT MPM does not currently support AP_ENABLE_V4_MAPPED
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#endif
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/* scoreboard.c does the heavy lifting; all we do is create the child
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* score by moving a handle down the pipe into the child's stdin.
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*/
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extern apr_shm_t *ap_scoreboard_shm;
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/* my_generation is returned to the scoreboard code */
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static volatile ap_generation_t my_generation=0;
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/* Definitions of WINNT MPM specific config globals */
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static HANDLE shutdown_event; /* used to signal the parent to shutdown */
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static HANDLE restart_event; /* used to signal the parent to restart */
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static int one_process = 0;
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static char const* signal_arg = NULL;
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OSVERSIONINFO osver; /* VER_PLATFORM_WIN32_NT */
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/* set by child_main to STACK_SIZE_PARAM_IS_A_RESERVATION for NT >= 5.1 (XP/2003) */
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DWORD stack_res_flag;
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static DWORD parent_pid;
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DWORD my_pid;
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/* used by parent to signal the child to start and exit */
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apr_proc_mutex_t *start_mutex;
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HANDLE exit_event;
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int ap_threads_per_child = 0;
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static int thread_limit = 0;
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static int first_thread_limit = 0;
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int winnt_mpm_state = AP_MPMQ_STARTING;
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/* shared by service.c as global, although
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* perhaps it should be private.
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*/
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apr_pool_t *pconf;
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/* Only one of these, the pipe from our parent, meant only for
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* one child worker's consumption (not to be inherited!)
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* XXX: decorate this name for the trunk branch, was left simplified
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* only to make the 2.2 patch trivial to read.
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*/
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static HANDLE pipe;
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/*
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* Command processors
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*/
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static const char *set_threads_per_child (cmd_parms *cmd, void *dummy, const char *arg)
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{
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const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
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if (err != NULL) {
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return err;
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}
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ap_threads_per_child = atoi(arg);
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return NULL;
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}
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static const char *set_thread_limit (cmd_parms *cmd, void *dummy, const char *arg)
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{
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const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
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if (err != NULL) {
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return err;
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}
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thread_limit = atoi(arg);
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return NULL;
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}
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static const command_rec winnt_cmds[] = {
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LISTEN_COMMANDS,
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AP_INIT_TAKE1("ThreadsPerChild", set_threads_per_child, NULL, RSRC_CONF,
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"Number of threads each child creates" ),
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AP_INIT_TAKE1("ThreadLimit", set_thread_limit, NULL, RSRC_CONF,
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"Maximum worker threads in a server for this run of Apache"),
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{ NULL }
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};
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static void winnt_note_child_started(int slot, pid_t pid)
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{
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ap_scoreboard_image->parent[slot].pid = pid;
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ap_scoreboard_image->parent[slot].generation = my_generation;
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ap_run_child_status(ap_server_conf,
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ap_scoreboard_image->parent[slot].pid,
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my_generation, slot, MPM_CHILD_STARTED);
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}
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static void winnt_note_child_killed(int slot)
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{
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ap_run_child_status(ap_server_conf,
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ap_scoreboard_image->parent[slot].pid,
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ap_scoreboard_image->parent[slot].generation,
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slot, MPM_CHILD_EXITED);
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ap_scoreboard_image->parent[slot].pid = 0;
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}
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/*
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* Signalling Apache on NT.
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*
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* Under Unix, Apache can be told to shutdown or restart by sending various
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* signals (HUP, USR, TERM). On NT we don't have easy access to signals, so
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* we use "events" instead. The parent apache process goes into a loop
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* where it waits forever for a set of events. Two of those events are
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* called
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*
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* apPID_shutdown
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* apPID_restart
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*
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* (where PID is the PID of the apache parent process). When one of these
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* is signalled, the Apache parent performs the appropriate action. The events
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* can become signalled through internal Apache methods (e.g. if the child
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* finds a fatal error and needs to kill its parent), via the service
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* control manager (the control thread will signal the shutdown event when
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* requested to stop the Apache service), from the -k Apache command line,
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* or from any external program which finds the Apache PID from the
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* httpd.pid file.
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*
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* The signal_parent() function, below, is used to signal one of these events.
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* It can be called by any child or parent process, since it does not
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* rely on global variables.
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*
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* On entry, type gives the event to signal. 0 means shutdown, 1 means
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* graceful restart.
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*/
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/*
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* Initialise the signal names, in the global variables signal_name_prefix,
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* signal_restart_name and signal_shutdown_name.
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*/
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#define MAX_SIGNAL_NAME 30 /* Long enough for apPID_shutdown, where PID is an int */
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static char signal_name_prefix[MAX_SIGNAL_NAME];
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static char signal_restart_name[MAX_SIGNAL_NAME];
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static char signal_shutdown_name[MAX_SIGNAL_NAME];
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static void setup_signal_names(char *prefix)
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{
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apr_snprintf(signal_name_prefix, sizeof(signal_name_prefix), prefix);
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apr_snprintf(signal_shutdown_name, sizeof(signal_shutdown_name),
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"%s_shutdown", signal_name_prefix);
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apr_snprintf(signal_restart_name, sizeof(signal_restart_name),
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"%s_restart", signal_name_prefix);
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}
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AP_DECLARE(void) ap_signal_parent(ap_signal_parent_e type)
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{
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HANDLE e;
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char *signal_name;
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if (parent_pid == my_pid) {
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switch(type) {
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case SIGNAL_PARENT_SHUTDOWN:
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{
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SetEvent(shutdown_event);
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break;
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}
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/* This MPM supports only graceful restarts right now */
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case SIGNAL_PARENT_RESTART:
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case SIGNAL_PARENT_RESTART_GRACEFUL:
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{
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SetEvent(restart_event);
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break;
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}
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}
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return;
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}
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switch(type) {
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case SIGNAL_PARENT_SHUTDOWN:
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{
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signal_name = signal_shutdown_name;
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break;
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}
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/* This MPM supports only graceful restarts right now */
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case SIGNAL_PARENT_RESTART:
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case SIGNAL_PARENT_RESTART_GRACEFUL:
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{
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signal_name = signal_restart_name;
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break;
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}
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default:
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return;
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}
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e = OpenEvent(EVENT_MODIFY_STATE, FALSE, signal_name);
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if (!e) {
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/* Um, problem, can't signal the parent, which means we can't
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* signal ourselves to die. Ignore for now...
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*/
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ap_log_error(APLOG_MARK, APLOG_EMERG, apr_get_os_error(), ap_server_conf, APLOGNO(00382)
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"OpenEvent on %s event", signal_name);
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return;
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}
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if (SetEvent(e) == 0) {
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/* Same problem as above */
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ap_log_error(APLOG_MARK, APLOG_EMERG, apr_get_os_error(), ap_server_conf, APLOGNO(00383)
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"SetEvent on %s event", signal_name);
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CloseHandle(e);
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return;
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}
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CloseHandle(e);
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}
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/*
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* Passed the following handles [in sync with send_handles_to_child()]
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*
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* ready event [signal the parent immediately, then close]
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* exit event [save to poll later]
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* start mutex [signal from the parent to begin accept()]
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* scoreboard shm handle [to recreate the ap_scoreboard]
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*/
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static void get_handles_from_parent(server_rec *s, HANDLE *child_exit_event,
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apr_proc_mutex_t **child_start_mutex,
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apr_shm_t **scoreboard_shm)
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{
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HANDLE hScore;
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HANDLE ready_event;
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HANDLE os_start;
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DWORD BytesRead;
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void *sb_shared;
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apr_status_t rv;
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/* *** We now do this way back in winnt_rewrite_args
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* pipe = GetStdHandle(STD_INPUT_HANDLE);
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*/
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if (!ReadFile(pipe, &ready_event, sizeof(HANDLE),
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&BytesRead, (LPOVERLAPPED) NULL)
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|| (BytesRead != sizeof(HANDLE))) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00384)
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"Child: Unable to retrieve the ready event from the parent");
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exit(APEXIT_CHILDINIT);
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}
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SetEvent(ready_event);
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CloseHandle(ready_event);
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if (!ReadFile(pipe, child_exit_event, sizeof(HANDLE),
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&BytesRead, (LPOVERLAPPED) NULL)
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|| (BytesRead != sizeof(HANDLE))) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00385)
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"Child: Unable to retrieve the exit event from the parent");
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exit(APEXIT_CHILDINIT);
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}
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if (!ReadFile(pipe, &os_start, sizeof(os_start),
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&BytesRead, (LPOVERLAPPED) NULL)
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|| (BytesRead != sizeof(os_start))) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00386)
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"Child: Unable to retrieve the start_mutex from the parent");
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exit(APEXIT_CHILDINIT);
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}
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*child_start_mutex = NULL;
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if ((rv = apr_os_proc_mutex_put(child_start_mutex, &os_start, s->process->pool))
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!= APR_SUCCESS) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00387)
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"Child: Unable to access the start_mutex from the parent");
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exit(APEXIT_CHILDINIT);
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}
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if (!ReadFile(pipe, &hScore, sizeof(hScore),
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&BytesRead, (LPOVERLAPPED) NULL)
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|| (BytesRead != sizeof(hScore))) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00388)
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"Child: Unable to retrieve the scoreboard from the parent");
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exit(APEXIT_CHILDINIT);
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}
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*scoreboard_shm = NULL;
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if ((rv = apr_os_shm_put(scoreboard_shm, &hScore, s->process->pool))
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!= APR_SUCCESS) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00389)
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"Child: Unable to access the scoreboard from the parent");
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exit(APEXIT_CHILDINIT);
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}
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rv = ap_reopen_scoreboard(s->process->pool, scoreboard_shm, 1);
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if (rv || !(sb_shared = apr_shm_baseaddr_get(*scoreboard_shm))) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00390)
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"Child: Unable to reopen the scoreboard from the parent");
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exit(APEXIT_CHILDINIT);
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}
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/* We must 'initialize' the scoreboard to relink all the
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* process-local pointer arrays into the shared memory block.
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*/
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ap_init_scoreboard(sb_shared);
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ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, APLOGNO(00391)
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"Child: Retrieved our scoreboard from the parent.");
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}
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static int send_handles_to_child(apr_pool_t *p,
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HANDLE child_ready_event,
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HANDLE child_exit_event,
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apr_proc_mutex_t *child_start_mutex,
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apr_shm_t *scoreboard_shm,
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HANDLE hProcess,
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apr_file_t *child_in)
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{
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apr_status_t rv;
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HANDLE hCurrentProcess = GetCurrentProcess();
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HANDLE hDup;
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HANDLE os_start;
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HANDLE hScore;
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apr_size_t BytesWritten;
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if ((rv = apr_file_write_full(child_in, &my_generation,
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sizeof(my_generation), NULL))
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!= APR_SUCCESS) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(02964)
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"Parent: Unable to send its generation to the child");
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return -1;
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}
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if (!DuplicateHandle(hCurrentProcess, child_ready_event, hProcess, &hDup,
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EVENT_MODIFY_STATE | SYNCHRONIZE, FALSE, 0)) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00392)
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"Parent: Unable to duplicate the ready event handle for the child");
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return -1;
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}
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if ((rv = apr_file_write_full(child_in, &hDup, sizeof(hDup), &BytesWritten))
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!= APR_SUCCESS) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00393)
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"Parent: Unable to send the exit event handle to the child");
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return -1;
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}
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if (!DuplicateHandle(hCurrentProcess, child_exit_event, hProcess, &hDup,
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EVENT_MODIFY_STATE | SYNCHRONIZE, FALSE, 0)) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00394)
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"Parent: Unable to duplicate the exit event handle for the child");
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return -1;
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}
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if ((rv = apr_file_write_full(child_in, &hDup, sizeof(hDup), &BytesWritten))
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!= APR_SUCCESS) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00395)
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"Parent: Unable to send the exit event handle to the child");
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return -1;
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}
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if ((rv = apr_os_proc_mutex_get(&os_start, child_start_mutex)) != APR_SUCCESS) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00396)
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"Parent: Unable to retrieve the start mutex for the child");
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return -1;
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}
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if (!DuplicateHandle(hCurrentProcess, os_start, hProcess, &hDup,
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SYNCHRONIZE, FALSE, 0)) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00397)
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"Parent: Unable to duplicate the start mutex to the child");
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return -1;
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}
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if ((rv = apr_file_write_full(child_in, &hDup, sizeof(hDup), &BytesWritten))
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!= APR_SUCCESS) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00398)
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"Parent: Unable to send the start mutex to the child");
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return -1;
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}
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if ((rv = apr_os_shm_get(&hScore, scoreboard_shm)) != APR_SUCCESS) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00399)
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"Parent: Unable to retrieve the scoreboard handle for the child");
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return -1;
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}
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if (!DuplicateHandle(hCurrentProcess, hScore, hProcess, &hDup,
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FILE_MAP_READ | FILE_MAP_WRITE, FALSE, 0)) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00400)
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"Parent: Unable to duplicate the scoreboard handle to the child");
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return -1;
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}
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if ((rv = apr_file_write_full(child_in, &hDup, sizeof(hDup), &BytesWritten))
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!= APR_SUCCESS) {
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ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00401)
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"Parent: Unable to send the scoreboard handle to the child");
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return -1;
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}
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ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, APLOGNO(00402)
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"Parent: Sent the scoreboard to the child");
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return 0;
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}
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/*
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* get_listeners_from_parent()
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* The listen sockets are opened in the parent. This function, which runs
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* exclusively in the child process, receives them from the parent and
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* makes them available in the child.
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*/
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static void get_listeners_from_parent(server_rec *s)
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{
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WSAPROTOCOL_INFO WSAProtocolInfo;
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ap_listen_rec *lr;
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DWORD BytesRead;
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int lcnt = 0;
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SOCKET nsd;
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/* Set up a default listener if necessary */
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if (ap_listeners == NULL) {
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ap_listen_rec *lr;
|
|
lr = apr_palloc(s->process->pool, sizeof(ap_listen_rec));
|
|
lr->sd = NULL;
|
|
lr->next = ap_listeners;
|
|
ap_listeners = lr;
|
|
}
|
|
|
|
/* Open the pipe to the parent process to receive the inherited socket
|
|
* data. The sockets have been set to listening in the parent process.
|
|
*
|
|
* *** We now do this way back in winnt_rewrite_args
|
|
* pipe = GetStdHandle(STD_INPUT_HANDLE);
|
|
*/
|
|
for (lr = ap_listeners; lr; lr = lr->next, ++lcnt) {
|
|
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, APLOGNO(00403)
|
|
"Child: Waiting for data for listening socket %pI",
|
|
lr->bind_addr);
|
|
if (!ReadFile(pipe, &WSAProtocolInfo, sizeof(WSAPROTOCOL_INFO),
|
|
&BytesRead, (LPOVERLAPPED) NULL)) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00404)
|
|
"Child: Unable to read socket data from parent");
|
|
exit(APEXIT_CHILDINIT);
|
|
}
|
|
|
|
nsd = WSASocket(FROM_PROTOCOL_INFO, FROM_PROTOCOL_INFO, FROM_PROTOCOL_INFO,
|
|
&WSAProtocolInfo, 0, 0);
|
|
if (nsd == INVALID_SOCKET) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_netos_error(), ap_server_conf, APLOGNO(00405)
|
|
"Child: WSASocket failed to open the inherited socket");
|
|
exit(APEXIT_CHILDINIT);
|
|
}
|
|
|
|
if (!SetHandleInformation((HANDLE)nsd, HANDLE_FLAG_INHERIT, 0)) {
|
|
ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_os_error(), ap_server_conf, APLOGNO(00406)
|
|
"Child: SetHandleInformation failed");
|
|
}
|
|
apr_os_sock_put(&lr->sd, &nsd, s->process->pool);
|
|
}
|
|
|
|
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, APLOGNO(00407)
|
|
"Child: retrieved %d listeners from parent", lcnt);
|
|
}
|
|
|
|
|
|
static int send_listeners_to_child(apr_pool_t *p, DWORD dwProcessId,
|
|
apr_file_t *child_in)
|
|
{
|
|
apr_status_t rv;
|
|
int lcnt = 0;
|
|
ap_listen_rec *lr;
|
|
LPWSAPROTOCOL_INFO lpWSAProtocolInfo;
|
|
apr_size_t BytesWritten;
|
|
|
|
/* Run the chain of open sockets. For each socket, duplicate it
|
|
* for the target process then send the WSAPROTOCOL_INFO
|
|
* (returned by dup socket) to the child.
|
|
*/
|
|
for (lr = ap_listeners; lr; lr = lr->next, ++lcnt) {
|
|
apr_os_sock_t nsd;
|
|
lpWSAProtocolInfo = apr_pcalloc(p, sizeof(WSAPROTOCOL_INFO));
|
|
apr_os_sock_get(&nsd, lr->sd);
|
|
ap_log_error(APLOG_MARK, APLOG_DEBUG, APR_SUCCESS, ap_server_conf, APLOGNO(00408)
|
|
"Parent: Duplicating socket %d (%pI) and sending it to child process %lu",
|
|
nsd, lr->bind_addr, dwProcessId);
|
|
if (WSADuplicateSocket(nsd, dwProcessId,
|
|
lpWSAProtocolInfo) == SOCKET_ERROR) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_netos_error(), ap_server_conf, APLOGNO(00409)
|
|
"Parent: WSADuplicateSocket failed for socket %d. Check the FAQ.", nsd);
|
|
return -1;
|
|
}
|
|
|
|
if ((rv = apr_file_write_full(child_in, lpWSAProtocolInfo,
|
|
sizeof(WSAPROTOCOL_INFO), &BytesWritten))
|
|
!= APR_SUCCESS) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00410)
|
|
"Parent: Unable to write duplicated socket %d to the child.", nsd);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, APLOGNO(00411)
|
|
"Parent: Sent %d listeners to child %lu", lcnt, dwProcessId);
|
|
return 0;
|
|
}
|
|
|
|
enum waitlist_e {
|
|
waitlist_ready = 0,
|
|
waitlist_term = 1
|
|
};
|
|
|
|
static int create_process(apr_pool_t *p, HANDLE *child_proc, HANDLE *child_exit_event,
|
|
DWORD *child_pid)
|
|
{
|
|
/* These NEVER change for the lifetime of this parent
|
|
*/
|
|
static char **args = NULL;
|
|
static char pidbuf[28];
|
|
|
|
apr_status_t rv;
|
|
apr_pool_t *ptemp;
|
|
apr_procattr_t *attr;
|
|
apr_proc_t new_child;
|
|
HANDLE hExitEvent;
|
|
HANDLE waitlist[2]; /* see waitlist_e */
|
|
char *cmd;
|
|
char *cwd;
|
|
char **env;
|
|
int envc;
|
|
|
|
apr_pool_create_ex(&ptemp, p, NULL, NULL);
|
|
apr_pool_tag(ptemp, "create_process");
|
|
|
|
/* Build the command line. Should look something like this:
|
|
* C:/apache/bin/httpd.exe -f ap_server_confname
|
|
* First, get the path to the executable...
|
|
*/
|
|
apr_procattr_create(&attr, ptemp);
|
|
apr_procattr_cmdtype_set(attr, APR_PROGRAM);
|
|
apr_procattr_detach_set(attr, 1);
|
|
if (((rv = apr_filepath_get(&cwd, 0, ptemp)) != APR_SUCCESS)
|
|
|| ((rv = apr_procattr_dir_set(attr, cwd)) != APR_SUCCESS)) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00412)
|
|
"Parent: Failed to get the current path");
|
|
}
|
|
|
|
if (!args) {
|
|
/* Build the args array, only once since it won't change
|
|
* for the lifetime of this parent process.
|
|
*/
|
|
if ((rv = ap_os_proc_filepath(&cmd, ptemp))
|
|
!= APR_SUCCESS) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, ERROR_BAD_PATHNAME, ap_server_conf, APLOGNO(00413)
|
|
"Parent: Failed to get full path of %s",
|
|
ap_server_conf->process->argv[0]);
|
|
apr_pool_destroy(ptemp);
|
|
return -1;
|
|
}
|
|
|
|
args = ap_malloc((ap_server_conf->process->argc + 1) * sizeof (char*));
|
|
memcpy(args + 1, ap_server_conf->process->argv + 1,
|
|
(ap_server_conf->process->argc - 1) * sizeof (char*));
|
|
args[0] = ap_malloc(strlen(cmd) + 1);
|
|
strcpy(args[0], cmd);
|
|
args[ap_server_conf->process->argc] = NULL;
|
|
}
|
|
else {
|
|
cmd = args[0];
|
|
}
|
|
|
|
/* Create a pipe to send handles to the child */
|
|
if ((rv = apr_procattr_io_set(attr, APR_FULL_BLOCK,
|
|
APR_NO_PIPE, APR_NO_PIPE)) != APR_SUCCESS) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00414)
|
|
"Parent: Unable to create child stdin pipe.");
|
|
apr_pool_destroy(ptemp);
|
|
return -1;
|
|
}
|
|
|
|
/* Create the child_ready_event */
|
|
waitlist[waitlist_ready] = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
if (!waitlist[waitlist_ready]) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00415)
|
|
"Parent: Could not create ready event for child process");
|
|
apr_pool_destroy (ptemp);
|
|
return -1;
|
|
}
|
|
|
|
/* Create the child_exit_event */
|
|
hExitEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
if (!hExitEvent) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00416)
|
|
"Parent: Could not create exit event for child process");
|
|
apr_pool_destroy(ptemp);
|
|
CloseHandle(waitlist[waitlist_ready]);
|
|
return -1;
|
|
}
|
|
|
|
/* Build the env array */
|
|
for (envc = 0; _environ[envc]; ++envc) {
|
|
;
|
|
}
|
|
env = apr_palloc(ptemp, (envc + 2) * sizeof (char*));
|
|
memcpy(env, _environ, envc * sizeof (char*));
|
|
apr_snprintf(pidbuf, sizeof(pidbuf), "AP_PARENT_PID=%lu", parent_pid);
|
|
env[envc] = pidbuf;
|
|
env[envc + 1] = NULL;
|
|
|
|
rv = apr_proc_create(&new_child, cmd, (const char * const *)args,
|
|
(const char * const *)env, attr, ptemp);
|
|
if (rv != APR_SUCCESS) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, APLOGNO(00417)
|
|
"Parent: Failed to create the child process.");
|
|
apr_pool_destroy(ptemp);
|
|
CloseHandle(hExitEvent);
|
|
CloseHandle(waitlist[waitlist_ready]);
|
|
CloseHandle(new_child.hproc);
|
|
return -1;
|
|
}
|
|
|
|
ap_log_error(APLOG_MARK, APLOG_NOTICE, APR_SUCCESS, ap_server_conf, APLOGNO(00418)
|
|
"Parent: Created child process %d", new_child.pid);
|
|
|
|
if (send_handles_to_child(ptemp, waitlist[waitlist_ready], hExitEvent,
|
|
start_mutex, ap_scoreboard_shm,
|
|
new_child.hproc, new_child.in)) {
|
|
/*
|
|
* This error is fatal, mop up the child and move on
|
|
* We toggle the child's exit event to cause this child
|
|
* to quit even as it is attempting to start.
|
|
*/
|
|
SetEvent(hExitEvent);
|
|
apr_pool_destroy(ptemp);
|
|
CloseHandle(hExitEvent);
|
|
CloseHandle(waitlist[waitlist_ready]);
|
|
CloseHandle(new_child.hproc);
|
|
return -1;
|
|
}
|
|
|
|
/* Important:
|
|
* Give the child process a chance to run before dup'ing the sockets.
|
|
* We have already set the listening sockets noninheritable, but if
|
|
* WSADuplicateSocket runs before the child process initializes
|
|
* the listeners will be inherited anyway.
|
|
*/
|
|
waitlist[waitlist_term] = new_child.hproc;
|
|
rv = WaitForMultipleObjects(2, waitlist, FALSE, INFINITE);
|
|
CloseHandle(waitlist[waitlist_ready]);
|
|
if (rv != WAIT_OBJECT_0) {
|
|
/*
|
|
* Outch... that isn't a ready signal. It's dead, Jim!
|
|
*/
|
|
SetEvent(hExitEvent);
|
|
apr_pool_destroy(ptemp);
|
|
CloseHandle(hExitEvent);
|
|
CloseHandle(new_child.hproc);
|
|
return -1;
|
|
}
|
|
|
|
if (send_listeners_to_child(ptemp, new_child.pid, new_child.in)) {
|
|
/*
|
|
* This error is fatal, mop up the child and move on
|
|
* We toggle the child's exit event to cause this child
|
|
* to quit even as it is attempting to start.
|
|
*/
|
|
SetEvent(hExitEvent);
|
|
apr_pool_destroy(ptemp);
|
|
CloseHandle(hExitEvent);
|
|
CloseHandle(new_child.hproc);
|
|
return -1;
|
|
}
|
|
|
|
apr_file_close(new_child.in);
|
|
|
|
*child_exit_event = hExitEvent;
|
|
*child_proc = new_child.hproc;
|
|
*child_pid = new_child.pid;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* master_main()
|
|
* master_main() runs in the parent process. It creates the child
|
|
* process which handles HTTP requests then waits on one of three
|
|
* events:
|
|
*
|
|
* restart_event
|
|
* -------------
|
|
* The restart event causes master_main to start a new child process and
|
|
* tells the old child process to exit (by setting the child_exit_event).
|
|
* The restart event is set as a result of one of the following:
|
|
* 1. An apache -k restart command on the command line
|
|
* 2. A command received from Windows service manager which gets
|
|
* translated into an ap_signal_parent(SIGNAL_PARENT_RESTART)
|
|
* call by code in service.c.
|
|
* 3. The child process calling ap_signal_parent(SIGNAL_PARENT_RESTART)
|
|
* as a result of hitting MaxConnectionsPerChild.
|
|
*
|
|
* shutdown_event
|
|
* --------------
|
|
* The shutdown event causes master_main to tell the child process to
|
|
* exit and that the server is shutting down. The shutdown event is
|
|
* set as a result of one of the following:
|
|
* 1. An apache -k shutdown command on the command line
|
|
* 2. A command received from Windows service manager which gets
|
|
* translated into an ap_signal_parent(SIGNAL_PARENT_SHUTDOWN)
|
|
* call by code in service.c.
|
|
*
|
|
* child process handle
|
|
* --------------------
|
|
* The child process handle will be signaled if the child process
|
|
* exits for any reason. In a normal running server, the signaling
|
|
* of this event means that the child process has exited prematurely
|
|
* due to a seg fault or other irrecoverable error. For server
|
|
* robustness, master_main will restart the child process under this
|
|
* condition.
|
|
*
|
|
* master_main uses the child_exit_event to signal the child process
|
|
* to exit.
|
|
**********************************************************************/
|
|
#define NUM_WAIT_HANDLES 3
|
|
#define CHILD_HANDLE 0
|
|
#define SHUTDOWN_HANDLE 1
|
|
#define RESTART_HANDLE 2
|
|
static int master_main(server_rec *s, HANDLE shutdown_event, HANDLE restart_event)
|
|
{
|
|
int rv, cld;
|
|
int child_created;
|
|
int restart_pending;
|
|
int shutdown_pending;
|
|
HANDLE child_exit_event;
|
|
HANDLE event_handles[NUM_WAIT_HANDLES];
|
|
DWORD child_pid;
|
|
|
|
child_created = restart_pending = shutdown_pending = 0;
|
|
|
|
event_handles[SHUTDOWN_HANDLE] = shutdown_event;
|
|
event_handles[RESTART_HANDLE] = restart_event;
|
|
|
|
/* Create a single child process */
|
|
rv = create_process(pconf, &event_handles[CHILD_HANDLE],
|
|
&child_exit_event, &child_pid);
|
|
if (rv < 0)
|
|
{
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00419)
|
|
"master_main: create child process failed. Exiting.");
|
|
shutdown_pending = 1;
|
|
goto die_now;
|
|
}
|
|
|
|
child_created = 1;
|
|
|
|
if (!strcasecmp(signal_arg, "runservice")) {
|
|
mpm_service_started();
|
|
}
|
|
|
|
/* Update the scoreboard. Note that there is only a single active
|
|
* child at once.
|
|
*/
|
|
ap_scoreboard_image->parent[0].quiescing = 0;
|
|
winnt_note_child_started(/* slot */ 0, child_pid);
|
|
|
|
/* Wait for shutdown or restart events or for child death */
|
|
winnt_mpm_state = AP_MPMQ_RUNNING;
|
|
rv = WaitForMultipleObjects(NUM_WAIT_HANDLES, (HANDLE *) event_handles, FALSE, INFINITE);
|
|
cld = rv - WAIT_OBJECT_0;
|
|
if (rv == WAIT_FAILED) {
|
|
/* Something serious is wrong */
|
|
ap_log_error(APLOG_MARK,APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00420)
|
|
"master_main: WaitForMultipleObjects WAIT_FAILED -- doing server shutdown");
|
|
shutdown_pending = 1;
|
|
}
|
|
else if (rv == WAIT_TIMEOUT) {
|
|
/* Hey, this cannot happen */
|
|
ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_os_error(), s, APLOGNO(00421)
|
|
"master_main: WaitForMultipleObjects with INFINITE wait exited with WAIT_TIMEOUT");
|
|
shutdown_pending = 1;
|
|
}
|
|
else if (cld == SHUTDOWN_HANDLE) {
|
|
/* shutdown_event signalled */
|
|
shutdown_pending = 1;
|
|
ap_log_error(APLOG_MARK, APLOG_NOTICE, APR_SUCCESS, s, APLOGNO(00422)
|
|
"Parent: Received shutdown signal -- Shutting down the server.");
|
|
if (ResetEvent(shutdown_event) == 0) {
|
|
ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_os_error(), s, APLOGNO(00423)
|
|
"ResetEvent(shutdown_event)");
|
|
}
|
|
}
|
|
else if (cld == RESTART_HANDLE) {
|
|
/* Received a restart event. Prepare the restart_event to be reused
|
|
* then signal the child process to exit.
|
|
*/
|
|
restart_pending = 1;
|
|
ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, s, APLOGNO(00424)
|
|
"Parent: Received restart signal -- Restarting the server.");
|
|
if (ResetEvent(restart_event) == 0) {
|
|
ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_os_error(), s, APLOGNO(00425)
|
|
"Parent: ResetEvent(restart_event) failed.");
|
|
}
|
|
if (SetEvent(child_exit_event) == 0) {
|
|
ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_os_error(), s, APLOGNO(00426)
|
|
"Parent: SetEvent for child process event %pp failed.",
|
|
event_handles[CHILD_HANDLE]);
|
|
}
|
|
/* Don't wait to verify that the child process really exits,
|
|
* just move on with the restart.
|
|
*/
|
|
CloseHandle(event_handles[CHILD_HANDLE]);
|
|
event_handles[CHILD_HANDLE] = NULL;
|
|
}
|
|
else {
|
|
/* The child process exited prematurely due to a fatal error. */
|
|
DWORD exitcode;
|
|
if (!GetExitCodeProcess(event_handles[CHILD_HANDLE], &exitcode)) {
|
|
/* HUH? We did exit, didn't we? */
|
|
exitcode = APEXIT_CHILDFATAL;
|
|
}
|
|
if ( exitcode == APEXIT_CHILDFATAL
|
|
|| exitcode == APEXIT_CHILDINIT
|
|
|| exitcode == APEXIT_INIT) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, 0, ap_server_conf, APLOGNO(00427)
|
|
"Parent: child process %lu exited with status %lu -- Aborting.",
|
|
child_pid, exitcode);
|
|
shutdown_pending = 1;
|
|
}
|
|
else {
|
|
int i;
|
|
restart_pending = 1;
|
|
ap_log_error(APLOG_MARK, APLOG_NOTICE, APR_SUCCESS, ap_server_conf, APLOGNO(00428)
|
|
"Parent: child process %lu exited with status %lu -- Restarting.",
|
|
child_pid, exitcode);
|
|
for (i = 0; i < ap_threads_per_child; i++) {
|
|
ap_update_child_status_from_indexes(0, i, SERVER_DEAD, NULL);
|
|
}
|
|
}
|
|
CloseHandle(event_handles[CHILD_HANDLE]);
|
|
event_handles[CHILD_HANDLE] = NULL;
|
|
}
|
|
|
|
winnt_note_child_killed(/* slot */ 0);
|
|
|
|
if (restart_pending) {
|
|
++my_generation;
|
|
ap_scoreboard_image->global->running_generation = my_generation;
|
|
}
|
|
die_now:
|
|
if (shutdown_pending)
|
|
{
|
|
int timeout = 30000; /* Timeout is milliseconds */
|
|
winnt_mpm_state = AP_MPMQ_STOPPING;
|
|
|
|
if (!child_created) {
|
|
return 0; /* Tell the caller we do not want to restart */
|
|
}
|
|
|
|
/* This shutdown is only marginally graceful. We will give the
|
|
* child a bit of time to exit gracefully. If the time expires,
|
|
* the child will be wacked.
|
|
*/
|
|
if (!strcasecmp(signal_arg, "runservice")) {
|
|
mpm_service_stopping();
|
|
}
|
|
/* Signal the child processes to exit */
|
|
if (SetEvent(child_exit_event) == 0) {
|
|
ap_log_error(APLOG_MARK,APLOG_ERR, apr_get_os_error(), ap_server_conf, APLOGNO(00429)
|
|
"Parent: SetEvent for child process event %pp failed",
|
|
event_handles[CHILD_HANDLE]);
|
|
}
|
|
if (event_handles[CHILD_HANDLE]) {
|
|
rv = WaitForSingleObject(event_handles[CHILD_HANDLE], timeout);
|
|
if (rv == WAIT_OBJECT_0) {
|
|
ap_log_error(APLOG_MARK,APLOG_NOTICE, APR_SUCCESS, ap_server_conf, APLOGNO(00430)
|
|
"Parent: Child process %lu exited successfully.", child_pid);
|
|
CloseHandle(event_handles[CHILD_HANDLE]);
|
|
event_handles[CHILD_HANDLE] = NULL;
|
|
}
|
|
else {
|
|
ap_log_error(APLOG_MARK,APLOG_NOTICE, APR_SUCCESS, ap_server_conf, APLOGNO(00431)
|
|
"Parent: Forcing termination of child process %lu",
|
|
child_pid);
|
|
TerminateProcess(event_handles[CHILD_HANDLE], 1);
|
|
CloseHandle(event_handles[CHILD_HANDLE]);
|
|
event_handles[CHILD_HANDLE] = NULL;
|
|
}
|
|
}
|
|
CloseHandle(child_exit_event);
|
|
return 0; /* Tell the caller we do not want to restart */
|
|
}
|
|
winnt_mpm_state = AP_MPMQ_STARTING;
|
|
CloseHandle(child_exit_event);
|
|
return 1; /* Tell the caller we want a restart */
|
|
}
|
|
|
|
/* service_nt_main_fn needs to append the StartService() args
|
|
* outside of our call stack and thread as the service starts...
|
|
*/
|
|
apr_array_header_t *mpm_new_argv;
|
|
|
|
/* Remember service_to_start failures to log and fail in pre_config.
|
|
* Remember inst_argc and inst_argv for installing or starting the
|
|
* service after we preflight the config.
|
|
*/
|
|
|
|
static int winnt_query(int query_code, int *result, apr_status_t *rv)
|
|
{
|
|
*rv = APR_SUCCESS;
|
|
switch (query_code) {
|
|
case AP_MPMQ_MAX_DAEMON_USED:
|
|
*result = MAXIMUM_WAIT_OBJECTS;
|
|
break;
|
|
case AP_MPMQ_IS_THREADED:
|
|
*result = AP_MPMQ_STATIC;
|
|
break;
|
|
case AP_MPMQ_IS_FORKED:
|
|
*result = AP_MPMQ_NOT_SUPPORTED;
|
|
break;
|
|
case AP_MPMQ_HARD_LIMIT_DAEMONS:
|
|
*result = HARD_SERVER_LIMIT;
|
|
break;
|
|
case AP_MPMQ_HARD_LIMIT_THREADS:
|
|
*result = thread_limit;
|
|
break;
|
|
case AP_MPMQ_MAX_THREADS:
|
|
*result = ap_threads_per_child;
|
|
break;
|
|
case AP_MPMQ_MIN_SPARE_DAEMONS:
|
|
*result = 0;
|
|
break;
|
|
case AP_MPMQ_MIN_SPARE_THREADS:
|
|
*result = 0;
|
|
break;
|
|
case AP_MPMQ_MAX_SPARE_DAEMONS:
|
|
*result = 0;
|
|
break;
|
|
case AP_MPMQ_MAX_SPARE_THREADS:
|
|
*result = 0;
|
|
break;
|
|
case AP_MPMQ_MAX_REQUESTS_DAEMON:
|
|
*result = ap_max_requests_per_child;
|
|
break;
|
|
case AP_MPMQ_MAX_DAEMONS:
|
|
*result = 1;
|
|
break;
|
|
case AP_MPMQ_MPM_STATE:
|
|
*result = winnt_mpm_state;
|
|
break;
|
|
case AP_MPMQ_GENERATION:
|
|
*result = my_generation;
|
|
break;
|
|
default:
|
|
*rv = APR_ENOTIMPL;
|
|
break;
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
static const char *winnt_get_name(void)
|
|
{
|
|
return "WinNT";
|
|
}
|
|
|
|
#define SERVICE_UNSET (-1)
|
|
static apr_status_t service_set = SERVICE_UNSET;
|
|
static apr_status_t service_to_start_success;
|
|
static int inst_argc;
|
|
static const char * const *inst_argv;
|
|
static const char *service_name = NULL;
|
|
|
|
static void winnt_rewrite_args(process_rec *process)
|
|
{
|
|
/* Handle the following SCM aspects in this phase:
|
|
*
|
|
* -k runservice [transition in service context only]
|
|
* -k install
|
|
* -k config
|
|
* -k uninstall
|
|
* -k stop
|
|
* -k shutdown (same as -k stop). Maintained for backward compatibility.
|
|
*
|
|
* We can't leave this phase until we know our identity
|
|
* and modify the command arguments appropriately.
|
|
*
|
|
* We do not care if the .conf file exists or is parsable when
|
|
* attempting to stop or uninstall a service.
|
|
*/
|
|
apr_status_t rv;
|
|
char *def_server_root;
|
|
char *binpath;
|
|
char optbuf[3];
|
|
const char *opt_arg;
|
|
int fixed_args;
|
|
char *pid;
|
|
apr_getopt_t *opt;
|
|
int running_as_service = 1;
|
|
int errout = 0;
|
|
apr_file_t *nullfile;
|
|
|
|
pconf = process->pconf;
|
|
|
|
osver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
|
|
GetVersionEx(&osver);
|
|
|
|
/* We wish this was *always* a reservation, but sadly it wasn't so and
|
|
* we couldn't break a hard limit prior to NT Kernel 5.1
|
|
*/
|
|
if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT
|
|
&& ((osver.dwMajorVersion > 5)
|
|
|| ((osver.dwMajorVersion == 5) && (osver.dwMinorVersion > 0)))) {
|
|
stack_res_flag = STACK_SIZE_PARAM_IS_A_RESERVATION;
|
|
}
|
|
|
|
/* AP_PARENT_PID is only valid in the child */
|
|
pid = getenv("AP_PARENT_PID");
|
|
if (pid)
|
|
{
|
|
HANDLE filehand;
|
|
HANDLE hproc = GetCurrentProcess();
|
|
DWORD BytesRead;
|
|
|
|
/* This is the child */
|
|
my_pid = GetCurrentProcessId();
|
|
parent_pid = (DWORD) atol(pid);
|
|
|
|
/* Prevent holding open the (nonexistent) console */
|
|
ap_real_exit_code = 0;
|
|
|
|
/* The parent gave us stdin, we need to remember this
|
|
* handle, and no longer inherit it at our children
|
|
* (we can't slurp it up now, we just aren't ready yet).
|
|
* The original handle is closed below, at apr_file_dup2()
|
|
*/
|
|
pipe = GetStdHandle(STD_INPUT_HANDLE);
|
|
if (DuplicateHandle(hproc, pipe,
|
|
hproc, &filehand, 0, FALSE,
|
|
DUPLICATE_SAME_ACCESS)) {
|
|
pipe = filehand;
|
|
}
|
|
|
|
/* The parent gave us stdout of the NUL device,
|
|
* and expects us to suck up stdin of all of our
|
|
* shared handles and data from the parent.
|
|
* Don't infect child processes with our stdin
|
|
* handle, use another handle to NUL!
|
|
*/
|
|
{
|
|
apr_file_t *infile, *outfile;
|
|
if ((apr_file_open_stdout(&outfile, process->pool) == APR_SUCCESS)
|
|
&& (apr_file_open_stdin(&infile, process->pool) == APR_SUCCESS))
|
|
apr_file_dup2(infile, outfile, process->pool);
|
|
}
|
|
|
|
/* This child needs the existing stderr opened for logging,
|
|
* already
|
|
*/
|
|
|
|
/* Read this child's generation number as soon as now,
|
|
* so that further hooks can query it.
|
|
*/
|
|
if (!ReadFile(pipe, &my_generation, sizeof(my_generation),
|
|
&BytesRead, (LPOVERLAPPED) NULL)
|
|
|| (BytesRead != sizeof(my_generation))) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), NULL, APLOGNO(02965)
|
|
"Child: Unable to retrieve my generation from the parent");
|
|
exit(APEXIT_CHILDINIT);
|
|
}
|
|
|
|
/* The parent is responsible for providing the
|
|
* COMPLETE ARGUMENTS REQUIRED to the child.
|
|
*
|
|
* No further argument parsing is needed, but
|
|
* for good measure we will provide a simple
|
|
* signal string for later testing.
|
|
*/
|
|
signal_arg = "runchild";
|
|
return;
|
|
}
|
|
|
|
/* This is the parent, we have a long way to go :-) */
|
|
parent_pid = my_pid = GetCurrentProcessId();
|
|
|
|
/* This behavior is voided by setting real_exit_code to 0 */
|
|
atexit(hold_console_open_on_error);
|
|
|
|
/* Rewrite process->argv[];
|
|
*
|
|
* strip out -k signal into signal_arg
|
|
* strip out -n servicename and set the names
|
|
* add default -d serverroot from the path of this executable
|
|
*
|
|
* The end result will look like:
|
|
*
|
|
* The invocation command (%0)
|
|
* The -d serverroot default from the running executable
|
|
* The requested service's (-n) registry ConfigArgs
|
|
* The WinNT SCM's StartService() args
|
|
*/
|
|
if ((rv = ap_os_proc_filepath(&binpath, process->pconf))
|
|
!= APR_SUCCESS) {
|
|
ap_log_error(APLOG_MARK,APLOG_CRIT, rv, NULL, APLOGNO(00432)
|
|
"Failed to get the full path of %s", process->argv[0]);
|
|
exit(APEXIT_INIT);
|
|
}
|
|
/* WARNING: There is an implicit assumption here that the
|
|
* executable resides in ServerRoot or ServerRoot\bin
|
|
*/
|
|
def_server_root = (char *) apr_filepath_name_get(binpath);
|
|
if (def_server_root > binpath) {
|
|
*(def_server_root - 1) = '\0';
|
|
def_server_root = (char *) apr_filepath_name_get(binpath);
|
|
if (!strcasecmp(def_server_root, "bin"))
|
|
*(def_server_root - 1) = '\0';
|
|
}
|
|
apr_filepath_merge(&def_server_root, NULL, binpath,
|
|
APR_FILEPATH_TRUENAME, process->pool);
|
|
|
|
/* Use process->pool so that the rewritten argv
|
|
* lasts for the lifetime of the server process,
|
|
* because pconf will be destroyed after the
|
|
* initial pre-flight of the config parser.
|
|
*/
|
|
mpm_new_argv = apr_array_make(process->pool, process->argc + 2,
|
|
sizeof(const char *));
|
|
*(const char **)apr_array_push(mpm_new_argv) = process->argv[0];
|
|
*(const char **)apr_array_push(mpm_new_argv) = "-d";
|
|
*(const char **)apr_array_push(mpm_new_argv) = def_server_root;
|
|
|
|
fixed_args = mpm_new_argv->nelts;
|
|
|
|
optbuf[0] = '-';
|
|
optbuf[2] = '\0';
|
|
apr_getopt_init(&opt, process->pool, process->argc, process->argv);
|
|
opt->errfn = NULL;
|
|
while ((rv = apr_getopt(opt, "wn:k:" AP_SERVER_BASEARGS,
|
|
optbuf + 1, &opt_arg)) == APR_SUCCESS) {
|
|
switch (optbuf[1]) {
|
|
|
|
/* Shortcuts; include the -w option to hold the window open on error.
|
|
* This must not be toggled once we reset ap_real_exit_code to 0!
|
|
*/
|
|
case 'w':
|
|
if (ap_real_exit_code)
|
|
ap_real_exit_code = 2;
|
|
break;
|
|
|
|
case 'n':
|
|
service_set = mpm_service_set_name(process->pool, &service_name,
|
|
opt_arg);
|
|
break;
|
|
|
|
case 'k':
|
|
signal_arg = opt_arg;
|
|
break;
|
|
|
|
case 'E':
|
|
errout = 1;
|
|
/* Fall through so the Apache main() handles the 'E' arg */
|
|
default:
|
|
*(const char **)apr_array_push(mpm_new_argv) =
|
|
apr_pstrdup(process->pool, optbuf);
|
|
|
|
if (opt_arg) {
|
|
*(const char **)apr_array_push(mpm_new_argv) = opt_arg;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* back up to capture the bad argument */
|
|
if (rv == APR_BADCH || rv == APR_BADARG) {
|
|
opt->ind--;
|
|
}
|
|
|
|
while (opt->ind < opt->argc) {
|
|
*(const char **)apr_array_push(mpm_new_argv) =
|
|
apr_pstrdup(process->pool, opt->argv[opt->ind++]);
|
|
}
|
|
|
|
/* Track the number of args actually entered by the user */
|
|
inst_argc = mpm_new_argv->nelts - fixed_args;
|
|
|
|
/* Provide a default 'run' -k arg to simplify signal_arg tests */
|
|
if (!signal_arg)
|
|
{
|
|
signal_arg = "run";
|
|
running_as_service = 0;
|
|
}
|
|
|
|
if (!strcasecmp(signal_arg, "runservice"))
|
|
{
|
|
/* Start the NT Service _NOW_ because the WinNT SCM is
|
|
* expecting us to rapidly assume control of our own
|
|
* process, the SCM will tell us our service name, and
|
|
* may have extra StartService() command arguments to
|
|
* add for us.
|
|
*
|
|
* The SCM will generally invoke the executable with
|
|
* the c:\win\system32 default directory. This is very
|
|
* lethal if folks use ServerRoot /foopath on windows
|
|
* without a drive letter. Change to the default root
|
|
* (path to apache root, above /bin) for safety.
|
|
*/
|
|
apr_filepath_set(def_server_root, process->pool);
|
|
|
|
/* Any other process has a console, so we don't to begin
|
|
* a Win9x service until the configuration is parsed and
|
|
* any command line errors are reported.
|
|
*
|
|
* We hold the return value so that we can die in pre_config
|
|
* after logging begins, and the failure can land in the log.
|
|
*/
|
|
if (!errout) {
|
|
mpm_nt_eventlog_stderr_open(service_name, process->pool);
|
|
}
|
|
service_to_start_success = mpm_service_to_start(&service_name,
|
|
process->pool);
|
|
if (service_to_start_success == APR_SUCCESS) {
|
|
service_set = APR_SUCCESS;
|
|
}
|
|
|
|
/* Open a null handle to soak stdout in this process.
|
|
* Windows service processes are missing any file handle
|
|
* usable for stdin/out/err. This was the cause of later
|
|
* trouble with invocations of apr_file_open_stdout()
|
|
*/
|
|
if ((rv = apr_file_open(&nullfile, "NUL",
|
|
APR_READ | APR_WRITE, APR_OS_DEFAULT,
|
|
process->pool)) == APR_SUCCESS) {
|
|
apr_file_t *nullstdout;
|
|
if (apr_file_open_stdout(&nullstdout, process->pool)
|
|
== APR_SUCCESS)
|
|
apr_file_dup2(nullstdout, nullfile, process->pool);
|
|
apr_file_close(nullfile);
|
|
}
|
|
}
|
|
|
|
/* Get the default for any -k option, except run */
|
|
if (service_set == SERVICE_UNSET && strcasecmp(signal_arg, "run")) {
|
|
service_set = mpm_service_set_name(process->pool, &service_name,
|
|
AP_DEFAULT_SERVICE_NAME);
|
|
}
|
|
|
|
if (!strcasecmp(signal_arg, "install")) /* -k install */
|
|
{
|
|
if (service_set == APR_SUCCESS)
|
|
{
|
|
ap_log_error(APLOG_MARK,APLOG_ERR, 0, NULL, APLOGNO(00433)
|
|
"%s: Service is already installed.", service_name);
|
|
exit(APEXIT_INIT);
|
|
}
|
|
}
|
|
else if (running_as_service)
|
|
{
|
|
if (service_set == APR_SUCCESS)
|
|
{
|
|
/* Attempt to Uninstall, or stop, before
|
|
* we can read the arguments or .conf files
|
|
*/
|
|
if (!strcasecmp(signal_arg, "uninstall")) {
|
|
rv = mpm_service_uninstall();
|
|
exit(rv);
|
|
}
|
|
|
|
if ((!strcasecmp(signal_arg, "stop")) ||
|
|
(!strcasecmp(signal_arg, "shutdown"))) {
|
|
mpm_signal_service(process->pool, 0);
|
|
exit(0);
|
|
}
|
|
|
|
rv = mpm_merge_service_args(process->pool, mpm_new_argv,
|
|
fixed_args);
|
|
if (rv == APR_SUCCESS) {
|
|
ap_log_error(APLOG_MARK,APLOG_INFO, 0, NULL, APLOGNO(00434)
|
|
"Using ConfigArgs of the installed service "
|
|
"\"%s\".", service_name);
|
|
}
|
|
else {
|
|
ap_log_error(APLOG_MARK,APLOG_WARNING, rv, NULL, APLOGNO(00435)
|
|
"No installed ConfigArgs for the service "
|
|
"\"%s\", using Apache defaults.", service_name);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ap_log_error(APLOG_MARK,APLOG_ERR, service_set, NULL, APLOGNO(00436)
|
|
"No installed service named \"%s\".", service_name);
|
|
exit(APEXIT_INIT);
|
|
}
|
|
}
|
|
if (strcasecmp(signal_arg, "install") && service_set && service_set != SERVICE_UNSET)
|
|
{
|
|
ap_log_error(APLOG_MARK,APLOG_ERR, service_set, NULL, APLOGNO(00437)
|
|
"No installed service named \"%s\".", service_name);
|
|
exit(APEXIT_INIT);
|
|
}
|
|
|
|
/* Track the args actually entered by the user.
|
|
* These will be used for the -k install parameters, as well as
|
|
* for the -k start service override arguments.
|
|
*/
|
|
inst_argv = (const char * const *)mpm_new_argv->elts
|
|
+ mpm_new_argv->nelts - inst_argc;
|
|
|
|
/* Now, do service install or reconfigure then proceed to
|
|
* post_config to test the installed configuration.
|
|
*/
|
|
if (!strcasecmp(signal_arg, "config")) { /* -k config */
|
|
/* Reconfigure the service */
|
|
rv = mpm_service_install(process->pool, inst_argc, inst_argv, 1);
|
|
if (rv != APR_SUCCESS) {
|
|
exit(rv);
|
|
}
|
|
|
|
fprintf(stderr,"Testing httpd.conf....\n");
|
|
fprintf(stderr,"Errors reported here must be corrected before the "
|
|
"service can be started.\n");
|
|
}
|
|
else if (!strcasecmp(signal_arg, "install")) { /* -k install */
|
|
/* Install the service */
|
|
rv = mpm_service_install(process->pool, inst_argc, inst_argv, 0);
|
|
if (rv != APR_SUCCESS) {
|
|
exit(rv);
|
|
}
|
|
|
|
fprintf(stderr,"Testing httpd.conf....\n");
|
|
fprintf(stderr,"Errors reported here must be corrected before the "
|
|
"service can be started.\n");
|
|
}
|
|
|
|
process->argc = mpm_new_argv->nelts;
|
|
process->argv = (const char * const *) mpm_new_argv->elts;
|
|
}
|
|
|
|
|
|
static int winnt_pre_config(apr_pool_t *pconf_, apr_pool_t *plog, apr_pool_t *ptemp)
|
|
{
|
|
/* Handle the following SCM aspects in this phase:
|
|
*
|
|
* -k runservice [WinNT errors logged from rewrite_args]
|
|
*/
|
|
|
|
/* Initialize shared static objects.
|
|
* TODO: Put config related statics into an sconf structure.
|
|
*/
|
|
pconf = pconf_;
|
|
|
|
if (ap_exists_config_define("ONE_PROCESS") ||
|
|
ap_exists_config_define("DEBUG"))
|
|
one_process = -1;
|
|
|
|
/* XXX: presume proper privileges; one nice thing would be
|
|
* a loud emit if running as "LocalSystem"/"SYSTEM" to indicate
|
|
* they should change to a user with write access to logs/ alone.
|
|
*/
|
|
ap_sys_privileges_handlers(1);
|
|
|
|
if (!strcasecmp(signal_arg, "runservice")
|
|
&& (service_to_start_success != APR_SUCCESS)) {
|
|
ap_log_error(APLOG_MARK,APLOG_CRIT, service_to_start_success, NULL, APLOGNO(00438)
|
|
"%s: Unable to start the service manager.",
|
|
service_name);
|
|
exit(APEXIT_INIT);
|
|
}
|
|
else if (ap_state_query(AP_SQ_RUN_MODE) == AP_SQ_RM_NORMAL
|
|
&& !one_process && !my_generation) {
|
|
/* Open a null handle to soak stdout in this process.
|
|
* We need to emulate apr_proc_detach, unix performs this
|
|
* same check in the pre_config hook (although it is
|
|
* arguably premature). Services already fixed this.
|
|
*/
|
|
apr_file_t *nullfile;
|
|
apr_status_t rv;
|
|
apr_pool_t *pproc = apr_pool_parent_get(pconf);
|
|
|
|
if ((rv = apr_file_open(&nullfile, "NUL",
|
|
APR_READ | APR_WRITE, APR_OS_DEFAULT,
|
|
pproc)) == APR_SUCCESS) {
|
|
apr_file_t *nullstdout;
|
|
if (apr_file_open_stdout(&nullstdout, pproc)
|
|
== APR_SUCCESS)
|
|
apr_file_dup2(nullstdout, nullfile, pproc);
|
|
apr_file_close(nullfile);
|
|
}
|
|
}
|
|
|
|
ap_listen_pre_config();
|
|
thread_limit = DEFAULT_THREAD_LIMIT;
|
|
ap_threads_per_child = DEFAULT_THREADS_PER_CHILD;
|
|
|
|
return OK;
|
|
}
|
|
|
|
static int winnt_check_config(apr_pool_t *pconf, apr_pool_t *plog,
|
|
apr_pool_t *ptemp, server_rec* s)
|
|
{
|
|
int is_parent;
|
|
int startup = 0;
|
|
|
|
/* We want this only in the parent and only the first time around */
|
|
is_parent = (parent_pid == my_pid);
|
|
if (is_parent &&
|
|
ap_state_query(AP_SQ_MAIN_STATE) == AP_SQ_MS_CREATE_PRE_CONFIG) {
|
|
startup = 1;
|
|
}
|
|
|
|
if (thread_limit > MAX_THREAD_LIMIT) {
|
|
if (startup) {
|
|
ap_log_error(APLOG_MARK, APLOG_WARNING | APLOG_STARTUP, 0, NULL, APLOGNO(00439)
|
|
"WARNING: ThreadLimit of %d exceeds compile-time "
|
|
"limit of %d threads, decreasing to %d.",
|
|
thread_limit, MAX_THREAD_LIMIT, MAX_THREAD_LIMIT);
|
|
} else if (is_parent) {
|
|
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s, APLOGNO(00440)
|
|
"ThreadLimit of %d exceeds compile-time limit "
|
|
"of %d, decreasing to match",
|
|
thread_limit, MAX_THREAD_LIMIT);
|
|
}
|
|
thread_limit = MAX_THREAD_LIMIT;
|
|
}
|
|
else if (thread_limit < 1) {
|
|
if (startup) {
|
|
ap_log_error(APLOG_MARK, APLOG_WARNING | APLOG_STARTUP, 0, NULL, APLOGNO(00441)
|
|
"WARNING: ThreadLimit of %d not allowed, "
|
|
"increasing to 1.", thread_limit);
|
|
} else if (is_parent) {
|
|
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s, APLOGNO(00442)
|
|
"ThreadLimit of %d not allowed, increasing to 1",
|
|
thread_limit);
|
|
}
|
|
thread_limit = 1;
|
|
}
|
|
|
|
/* You cannot change ThreadLimit across a restart; ignore
|
|
* any such attempts.
|
|
*/
|
|
if (!first_thread_limit) {
|
|
first_thread_limit = thread_limit;
|
|
}
|
|
else if (thread_limit != first_thread_limit) {
|
|
/* Don't need a startup console version here */
|
|
if (is_parent) {
|
|
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s, APLOGNO(00443)
|
|
"changing ThreadLimit to %d from original value "
|
|
"of %d not allowed during restart",
|
|
thread_limit, first_thread_limit);
|
|
}
|
|
thread_limit = first_thread_limit;
|
|
}
|
|
|
|
if (ap_threads_per_child > thread_limit) {
|
|
if (startup) {
|
|
ap_log_error(APLOG_MARK, APLOG_WARNING | APLOG_STARTUP, 0, NULL, APLOGNO(00444)
|
|
"WARNING: ThreadsPerChild of %d exceeds ThreadLimit "
|
|
"of %d threads, decreasing to %d. To increase, please "
|
|
"see the ThreadLimit directive.",
|
|
ap_threads_per_child, thread_limit, thread_limit);
|
|
} else if (is_parent) {
|
|
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s, APLOGNO(00445)
|
|
"ThreadsPerChild of %d exceeds ThreadLimit "
|
|
"of %d, decreasing to match",
|
|
ap_threads_per_child, thread_limit);
|
|
}
|
|
ap_threads_per_child = thread_limit;
|
|
}
|
|
else if (ap_threads_per_child < 1) {
|
|
if (startup) {
|
|
ap_log_error(APLOG_MARK, APLOG_WARNING | APLOG_STARTUP, 0, NULL, APLOGNO(00446)
|
|
"WARNING: ThreadsPerChild of %d not allowed, "
|
|
"increasing to 1.", ap_threads_per_child);
|
|
} else if (is_parent) {
|
|
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s, APLOGNO(00447)
|
|
"ThreadsPerChild of %d not allowed, increasing to 1",
|
|
ap_threads_per_child);
|
|
}
|
|
ap_threads_per_child = 1;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
static int winnt_post_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec* s)
|
|
{
|
|
apr_status_t rv = 0;
|
|
|
|
/* Handle the following SCM aspects in this phase:
|
|
*
|
|
* -k install (catch and exit as install was handled in rewrite_args)
|
|
* -k config (catch and exit as config was handled in rewrite_args)
|
|
* -k start
|
|
* -k restart
|
|
* -k runservice [Win95, only once - after we parsed the config]
|
|
*
|
|
* because all of these signals are useful _only_ if there
|
|
* is a valid conf\httpd.conf environment to start.
|
|
*
|
|
* We reached this phase by avoiding errors that would cause
|
|
* these options to fail unexpectedly in another process.
|
|
*/
|
|
|
|
if (!strcasecmp(signal_arg, "install")) {
|
|
/* Service install happens in the rewrite_args hooks. If we
|
|
* made it this far, the server configuration is clean and the
|
|
* service will successfully start.
|
|
*/
|
|
apr_pool_destroy(s->process->pool);
|
|
apr_terminate();
|
|
exit(0);
|
|
}
|
|
if (!strcasecmp(signal_arg, "config")) {
|
|
/* Service reconfiguration happens in the rewrite_args hooks. If we
|
|
* made it this far, the server configuration is clean and the
|
|
* service will successfully start.
|
|
*/
|
|
apr_pool_destroy(s->process->pool);
|
|
apr_terminate();
|
|
exit(0);
|
|
}
|
|
|
|
if (!strcasecmp(signal_arg, "start")) {
|
|
ap_listen_rec *lr;
|
|
|
|
/* Close the listening sockets. */
|
|
for (lr = ap_listeners; lr; lr = lr->next) {
|
|
apr_socket_close(lr->sd);
|
|
lr->active = 0;
|
|
}
|
|
rv = mpm_service_start(ptemp, inst_argc, inst_argv);
|
|
apr_pool_destroy(s->process->pool);
|
|
apr_terminate();
|
|
exit (rv);
|
|
}
|
|
|
|
if (!strcasecmp(signal_arg, "restart")) {
|
|
mpm_signal_service(ptemp, 1);
|
|
apr_pool_destroy(s->process->pool);
|
|
apr_terminate();
|
|
exit (rv);
|
|
}
|
|
|
|
if (parent_pid == my_pid)
|
|
{
|
|
if (ap_state_query(AP_SQ_MAIN_STATE) != AP_SQ_MS_CREATE_PRE_CONFIG
|
|
&& ap_state_query(AP_SQ_CONFIG_GEN) == 1)
|
|
{
|
|
/* This code should be run once in the parent and not run
|
|
* across a restart
|
|
*/
|
|
setup_signal_names(apr_psprintf(pconf, "ap%lu", parent_pid));
|
|
|
|
ap_log_pid(pconf, ap_pid_fname);
|
|
|
|
/* Create shutdown event, apPID_shutdown, where PID is the parent
|
|
* Apache process ID. Shutdown is signaled by 'apache -k shutdown'.
|
|
*/
|
|
shutdown_event = CreateEvent(NULL, FALSE, FALSE, signal_shutdown_name);
|
|
if (!shutdown_event) {
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00448)
|
|
"Parent: Cannot create shutdown event %s", signal_shutdown_name);
|
|
return HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
/* Create restart event, apPID_restart, where PID is the parent
|
|
* Apache process ID. Restart is signaled by 'apache -k restart'.
|
|
*/
|
|
restart_event = CreateEvent(NULL, FALSE, FALSE, signal_restart_name);
|
|
if (!restart_event) {
|
|
CloseHandle(shutdown_event);
|
|
ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, APLOGNO(00449)
|
|
"Parent: Cannot create restart event %s", signal_restart_name);
|
|
return HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
/* Create the start mutex, as an unnamed object for security.
|
|
* The start mutex is used during a restart to prevent more than
|
|
* one child process from entering the accept loop at once.
|
|
*/
|
|
rv = apr_proc_mutex_create(&start_mutex, NULL,
|
|
APR_LOCK_DEFAULT,
|
|
ap_server_conf->process->pool);
|
|
if (rv != APR_SUCCESS) {
|
|
ap_log_error(APLOG_MARK,APLOG_ERR, rv, ap_server_conf, APLOGNO(00450)
|
|
"%s: Unable to create the start_mutex.",
|
|
service_name);
|
|
return HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
}
|
|
/* Always reset our console handler to be the first, even on a restart
|
|
* because some modules (e.g. mod_perl) might have set a console
|
|
* handler to terminate the process.
|
|
*/
|
|
if (strcasecmp(signal_arg, "runservice"))
|
|
mpm_start_console_handler();
|
|
}
|
|
else /* parent_pid != my_pid */
|
|
{
|
|
mpm_start_child_console_handler();
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
/* This really should be a post_config hook, but the error log is already
|
|
* redirected by that point, so we need to do this in the open_logs phase.
|
|
*/
|
|
static int winnt_open_logs(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
|
|
{
|
|
/* Initialize shared static objects.
|
|
*/
|
|
if (parent_pid != my_pid) {
|
|
return OK;
|
|
}
|
|
|
|
/* We cannot initialize our listeners if we are restarting
|
|
* (the parent process already has glomed on to them)
|
|
* nor should we do so for service reconfiguration
|
|
* (since the service may already be running.)
|
|
*/
|
|
if (!strcasecmp(signal_arg, "restart")
|
|
|| !strcasecmp(signal_arg, "config")) {
|
|
return OK;
|
|
}
|
|
|
|
if (ap_setup_listeners(s) < 1) {
|
|
ap_log_error(APLOG_MARK, APLOG_ALERT|APLOG_STARTUP, 0,
|
|
NULL, APLOGNO(00451) "no listening sockets available, shutting down");
|
|
return !OK;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
static void winnt_child_init(apr_pool_t *pchild, struct server_rec *s)
|
|
{
|
|
apr_status_t rv;
|
|
|
|
setup_signal_names(apr_psprintf(pchild, "ap%lu", parent_pid));
|
|
|
|
/* This is a child process, not in single process mode */
|
|
if (!one_process) {
|
|
/* Set up events and the scoreboard */
|
|
get_handles_from_parent(s, &exit_event, &start_mutex,
|
|
&ap_scoreboard_shm);
|
|
|
|
/* Set up the listeners */
|
|
get_listeners_from_parent(s);
|
|
|
|
/* Done reading from the parent, close that channel */
|
|
CloseHandle(pipe);
|
|
}
|
|
else {
|
|
/* Single process mode - this lock doesn't even need to exist */
|
|
rv = apr_proc_mutex_create(&start_mutex, signal_name_prefix,
|
|
APR_LOCK_DEFAULT, s->process->pool);
|
|
if (rv != APR_SUCCESS) {
|
|
ap_log_error(APLOG_MARK,APLOG_ERR, rv, ap_server_conf, APLOGNO(00452)
|
|
"%s child: Unable to init the start_mutex.",
|
|
service_name);
|
|
exit(APEXIT_CHILDINIT);
|
|
}
|
|
|
|
/* Borrow the shutdown_even as our _child_ loop exit event */
|
|
exit_event = shutdown_event;
|
|
}
|
|
}
|
|
|
|
|
|
static int winnt_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s )
|
|
{
|
|
static int restart = 0; /* Default is "not a restart" */
|
|
|
|
/* ### If non-graceful restarts are ever introduced - we need to rerun
|
|
* the pre_mpm hook on subsequent non-graceful restarts. But Win32
|
|
* has only graceful style restarts - and we need this hook to act
|
|
* the same on Win32 as on Unix.
|
|
*/
|
|
if (!restart && ((parent_pid == my_pid) || one_process)) {
|
|
/* Set up the scoreboard. */
|
|
if (ap_run_pre_mpm(s->process->pool, SB_SHARED) != OK) {
|
|
return !OK;
|
|
}
|
|
}
|
|
|
|
if ((parent_pid != my_pid) || one_process)
|
|
{
|
|
/* The child process or in one_process (debug) mode
|
|
*/
|
|
ap_log_error(APLOG_MARK, APLOG_DEBUG, APR_SUCCESS, ap_server_conf, APLOGNO(00453)
|
|
"Child process is running");
|
|
|
|
child_main(pconf, parent_pid);
|
|
|
|
ap_log_error(APLOG_MARK, APLOG_DEBUG, APR_SUCCESS, ap_server_conf, APLOGNO(00454)
|
|
"Child process is exiting");
|
|
return DONE;
|
|
}
|
|
else
|
|
{
|
|
/* A real-honest to goodness parent */
|
|
ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, APLOGNO(00455)
|
|
"%s configured -- resuming normal operations",
|
|
ap_get_server_description());
|
|
ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, APLOGNO(00456)
|
|
"Server built: %s", ap_get_server_built());
|
|
ap_log_command_line(plog, s);
|
|
ap_log_mpm_common(s);
|
|
|
|
restart = master_main(ap_server_conf, shutdown_event, restart_event);
|
|
|
|
if (!restart)
|
|
{
|
|
/* Shutting down. Clean up... */
|
|
ap_remove_pid(pconf, ap_pid_fname);
|
|
apr_proc_mutex_destroy(start_mutex);
|
|
|
|
CloseHandle(restart_event);
|
|
CloseHandle(shutdown_event);
|
|
|
|
return DONE;
|
|
}
|
|
}
|
|
|
|
return OK; /* Restart */
|
|
}
|
|
|
|
static void winnt_hooks(apr_pool_t *p)
|
|
{
|
|
/* Our open_logs hook function must run before the core's, or stderr
|
|
* will be redirected to a file, and the messages won't print to the
|
|
* console.
|
|
*/
|
|
static const char *const aszSucc[] = {"core.c", NULL};
|
|
|
|
ap_hook_pre_config(winnt_pre_config, NULL, NULL, APR_HOOK_MIDDLE);
|
|
ap_hook_check_config(winnt_check_config, NULL, NULL, APR_HOOK_MIDDLE);
|
|
ap_hook_post_config(winnt_post_config, NULL, NULL, 0);
|
|
ap_hook_child_init(winnt_child_init, NULL, NULL, APR_HOOK_MIDDLE);
|
|
ap_hook_open_logs(winnt_open_logs, NULL, aszSucc, APR_HOOK_REALLY_FIRST);
|
|
ap_hook_mpm(winnt_run, NULL, NULL, APR_HOOK_MIDDLE);
|
|
ap_hook_mpm_query(winnt_query, NULL, NULL, APR_HOOK_MIDDLE);
|
|
ap_hook_mpm_get_name(winnt_get_name, NULL, NULL, APR_HOOK_MIDDLE);
|
|
}
|
|
|
|
AP_DECLARE_MODULE(mpm_winnt) = {
|
|
MPM20_MODULE_STUFF,
|
|
winnt_rewrite_args, /* 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 */
|
|
winnt_cmds, /* command apr_table_t */
|
|
winnt_hooks /* register_hooks */
|
|
};
|
|
|
|
#endif /* def WIN32 */
|