diff options
Diffstat (limited to 'rubbos/app/httpd-2.0.64/server/mpm/winnt/mpm_winnt.c')
| -rw-r--r-- | rubbos/app/httpd-2.0.64/server/mpm/winnt/mpm_winnt.c | 1728 |
1 files changed, 0 insertions, 1728 deletions
diff --git a/rubbos/app/httpd-2.0.64/server/mpm/winnt/mpm_winnt.c b/rubbos/app/httpd-2.0.64/server/mpm/winnt/mpm_winnt.c deleted file mode 100644 index 6fc0ae60..00000000 --- a/rubbos/app/httpd-2.0.64/server/mpm/winnt/mpm_winnt.c +++ /dev/null @@ -1,1728 +0,0 @@ -/* Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifdef WIN32 - -#define CORE_PRIVATE -#include "httpd.h" -#include "http_main.h" -#include "http_log.h" -#include "http_config.h" /* for read_config */ -#include "http_core.h" /* for get_remote_host */ -#include "http_connection.h" -#include "apr_portable.h" -#include "apr_thread_proc.h" -#include "apr_getopt.h" -#include "apr_strings.h" -#include "apr_lib.h" -#include "apr_shm.h" -#include "apr_thread_mutex.h" -#include "ap_mpm.h" -#include "ap_config.h" -#include "ap_listen.h" -#include "mpm_default.h" -#include "mpm_winnt.h" -#include "mpm_common.h" -#include <malloc.h> -#include "apr_atomic.h" - - -/* scoreboard.c does the heavy lifting; all we do is create the child - * score by moving a handle down the pipe into the child's stdin. - */ -extern apr_shm_t *ap_scoreboard_shm; -server_rec *ap_server_conf; - -/* Definitions of WINNT MPM specific config globals */ -static HANDLE shutdown_event; /* used to signal the parent to shutdown */ -static HANDLE restart_event; /* used to signal the parent to restart */ - -static char ap_coredump_dir[MAX_STRING_LEN]; - -static int one_process = 0; -static char const* signal_arg = NULL; - -OSVERSIONINFO osver; /* VER_PLATFORM_WIN32_NT */ - -static DWORD parent_pid; -DWORD my_pid; - -int ap_threads_per_child = 0; -int use_acceptex = 1; -static int thread_limit = DEFAULT_THREAD_LIMIT; -static int first_thread_limit = 0; -static int changed_limit_at_restart; -int winnt_mpm_state = AP_MPMQ_STARTING; -/* ap_my_generation are used by the scoreboard code */ -ap_generation_t volatile ap_my_generation=0; - - -/* shared by service.c as global, although - * perhaps it should be private. - */ -apr_pool_t *pconf; - - -/* definitions from child.c */ -void child_main(apr_pool_t *pconf); - -/* used by parent to signal the child to start and exit - * NOTE: these are not sophisticated enough for multiple children - * so they ultimately should not be shared with child.c - */ -extern apr_proc_mutex_t *start_mutex; -extern HANDLE exit_event; - -/* Only one of these, the pipe from our parent, ment only for - * one child worker's consumption (not to be inherited!) - * XXX: decorate this name for the trunk branch, was left simplified - * only to make the 2.2 patch trivial to read. - */ -static HANDLE pipe; - -/* Stub functions until this MPM supports the connection status API */ - -AP_DECLARE(void) ap_update_connection_status(long conn_id, const char *key, \ - const char *value) -{ - /* NOP */ -} - -AP_DECLARE(void) ap_reset_connection_status(long conn_id) -{ - /* NOP */ -} - -AP_DECLARE(apr_array_header_t *) ap_get_status_table(apr_pool_t *p) -{ - /* NOP */ - return NULL; -} - -/* - * Command processors - */ - -static const char *set_threads_per_child (cmd_parms *cmd, void *dummy, 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 > thread_limit) { - ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, - "WARNING: ThreadsPerChild of %d exceeds ThreadLimit " - "value of %d threads,", ap_threads_per_child, - thread_limit); - ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, - " lowering ThreadsPerChild to %d. To increase, please" - " see the", thread_limit); - ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, - " ThreadLimit directive."); - ap_threads_per_child = thread_limit; - } - else if (ap_threads_per_child < 1) { - ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, - "WARNING: Require ThreadsPerChild > 0, setting to 1"); - ap_threads_per_child = 1; - } - return NULL; -} -static const char *set_thread_limit (cmd_parms *cmd, void *dummy, const char *arg) -{ - int tmp_thread_limit; - - const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); - if (err != NULL) { - return err; - } - - tmp_thread_limit = atoi(arg); - /* you cannot change ThreadLimit across a restart; ignore - * any such attempts - */ - if (first_thread_limit && - tmp_thread_limit != thread_limit) { - /* how do we log a message? the error log is a bit bucket at this - * point; we'll just have to set a flag so that ap_mpm_run() - * logs a warning later - */ - changed_limit_at_restart = 1; - return NULL; - } - thread_limit = tmp_thread_limit; - - if (thread_limit > MAX_THREAD_LIMIT) { - ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, - "WARNING: ThreadLimit of %d exceeds compile time limit " - "of %d threads,", thread_limit, MAX_THREAD_LIMIT); - ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, - " lowering ThreadLimit to %d.", MAX_THREAD_LIMIT); - thread_limit = MAX_THREAD_LIMIT; - } - else if (thread_limit < 1) { - ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, - "WARNING: Require ThreadLimit > 0, setting to 1"); - thread_limit = 1; - } - return NULL; -} -static const char *set_disable_acceptex(cmd_parms *cmd, void *dummy, char *arg) -{ - const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); - if (err != NULL) { - return err; - } - if (use_acceptex) { - use_acceptex = 0; - ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, NULL, - "Disabled use of AcceptEx() WinSock2 API"); - } - return NULL; -} - -static const command_rec winnt_cmds[] = { -LISTEN_COMMANDS, -AP_INIT_TAKE1("ThreadsPerChild", set_threads_per_child, NULL, RSRC_CONF, - "Number of threads each child creates" ), -AP_INIT_TAKE1("ThreadLimit", set_thread_limit, NULL, RSRC_CONF, - "Maximum worker threads in a server for this run of Apache"), -AP_INIT_NO_ARGS("Win32DisableAcceptEx", set_disable_acceptex, NULL, RSRC_CONF, - "Disable use of the high performance AcceptEx WinSock2 API to work around buggy VPN or Firewall software"), -{ NULL } -}; - - -/* - * Signalling Apache on NT. - * - * Under Unix, Apache can be told to shutdown or restart by sending various - * signals (HUP, USR, TERM). On NT we don't have easy access to signals, so - * we use "events" instead. The parent apache process goes into a loop - * where it waits forever for a set of events. Two of those events are - * called - * - * apPID_shutdown - * apPID_restart - * - * (where PID is the PID of the apache parent process). When one of these - * is signalled, the Apache parent performs the appropriate action. The events - * can become signalled through internal Apache methods (e.g. if the child - * finds a fatal error and needs to kill its parent), via the service - * control manager (the control thread will signal the shutdown event when - * requested to stop the Apache service), from the -k Apache command line, - * or from any external program which finds the Apache PID from the - * httpd.pid file. - * - * The signal_parent() function, below, is used to signal one of these events. - * It can be called by any child or parent process, since it does not - * rely on global variables. - * - * On entry, type gives the event to signal. 0 means shutdown, 1 means - * graceful restart. - */ -/* - * Initialise the signal names, in the global variables signal_name_prefix, - * signal_restart_name and signal_shutdown_name. - */ -#define MAX_SIGNAL_NAME 30 /* Long enough for apPID_shutdown, where PID is an int */ -char signal_name_prefix[MAX_SIGNAL_NAME]; -char signal_restart_name[MAX_SIGNAL_NAME]; -char signal_shutdown_name[MAX_SIGNAL_NAME]; -void setup_signal_names(char *prefix) -{ - apr_snprintf(signal_name_prefix, sizeof(signal_name_prefix), prefix); - apr_snprintf(signal_shutdown_name, sizeof(signal_shutdown_name), - "%s_shutdown", signal_name_prefix); - apr_snprintf(signal_restart_name, sizeof(signal_restart_name), - "%s_restart", signal_name_prefix); -} - -int volatile is_graceful = 0; - -AP_DECLARE(int) ap_graceful_stop_signalled(void) -{ - return is_graceful; -} - -AP_DECLARE(void) ap_signal_parent(ap_signal_parent_e type) -{ - HANDLE e; - char *signal_name; - - if (parent_pid == my_pid) { - switch(type) { - case SIGNAL_PARENT_SHUTDOWN: - { - SetEvent(shutdown_event); - break; - } - /* This MPM supports only graceful restarts right now */ - case SIGNAL_PARENT_RESTART: - case SIGNAL_PARENT_RESTART_GRACEFUL: - { - is_graceful = 1; - SetEvent(restart_event); - break; - } - } - return; - } - - switch(type) { - case SIGNAL_PARENT_SHUTDOWN: - { - signal_name = signal_shutdown_name; - break; - } - /* This MPM supports only graceful restarts right now */ - case SIGNAL_PARENT_RESTART: - case SIGNAL_PARENT_RESTART_GRACEFUL: - { - signal_name = signal_restart_name; - is_graceful = 1; - break; - } - default: - return; - } - - e = OpenEvent(EVENT_MODIFY_STATE, FALSE, signal_name); - if (!e) { - /* Um, problem, can't signal the parent, which means we can't - * signal ourselves to die. Ignore for now... - */ - ap_log_error(APLOG_MARK, APLOG_EMERG, apr_get_os_error(), ap_server_conf, - "OpenEvent on %s event", signal_name); - return; - } - if (SetEvent(e) == 0) { - /* Same problem as above */ - ap_log_error(APLOG_MARK, APLOG_EMERG, apr_get_os_error(), ap_server_conf, - "SetEvent on %s event", signal_name); - CloseHandle(e); - return; - } - CloseHandle(e); -} - - -/* - * Passed the following handles [in sync with send_handles_to_child()] - * - * ready event [signal the parent immediately, then close] - * exit event [save to poll later] - * start mutex [signal from the parent to begin accept()] - * scoreboard shm handle [to recreate the ap_scoreboard] - */ -void get_handles_from_parent(server_rec *s, HANDLE *child_exit_event, - apr_proc_mutex_t **child_start_mutex, - apr_shm_t **scoreboard_shm) -{ - HANDLE hScore; - HANDLE ready_event; - HANDLE os_start; - DWORD BytesRead; - void *sb_shared; - apr_status_t rv; - - /* *** We now do this was back in winnt_rewrite_args - * pipe = GetStdHandle(STD_INPUT_HANDLE); - */ - if (!ReadFile(pipe, &ready_event, sizeof(HANDLE), - &BytesRead, (LPOVERLAPPED) NULL) - || (BytesRead != sizeof(HANDLE))) { - ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, - "Child %d: Unable to retrieve the ready event from the parent", my_pid); - exit(APEXIT_CHILDINIT); - } - - SetEvent(ready_event); - CloseHandle(ready_event); - - if (!ReadFile(pipe, child_exit_event, sizeof(HANDLE), - &BytesRead, (LPOVERLAPPED) NULL) - || (BytesRead != sizeof(HANDLE))) { - ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, - "Child %d: Unable to retrieve the exit event from the parent", my_pid); - exit(APEXIT_CHILDINIT); - } - - if (!ReadFile(pipe, &os_start, sizeof(os_start), - &BytesRead, (LPOVERLAPPED) NULL) - || (BytesRead != sizeof(os_start))) { - ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, - "Child %d: Unable to retrieve the start_mutex from the parent", my_pid); - exit(APEXIT_CHILDINIT); - } - *child_start_mutex = NULL; - if ((rv = apr_os_proc_mutex_put(child_start_mutex, &os_start, s->process->pool)) - != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, - "Child %d: Unable to access the start_mutex from the parent", my_pid); - exit(APEXIT_CHILDINIT); - } - - if (!ReadFile(pipe, &hScore, sizeof(hScore), - &BytesRead, (LPOVERLAPPED) NULL) - || (BytesRead != sizeof(hScore))) { - ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, - "Child %d: Unable to retrieve the scoreboard from the parent", my_pid); - exit(APEXIT_CHILDINIT); - } - *scoreboard_shm = NULL; - if ((rv = apr_os_shm_put(scoreboard_shm, &hScore, s->process->pool)) - != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, - "Child %d: Unable to access the scoreboard from the parent", my_pid); - exit(APEXIT_CHILDINIT); - } - - rv = ap_reopen_scoreboard(s->process->pool, scoreboard_shm, 1); - if (rv || !(sb_shared = apr_shm_baseaddr_get(*scoreboard_shm))) { - ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL, - "Child %d: Unable to reopen the scoreboard from the parent", my_pid); - exit(APEXIT_CHILDINIT); - } - /* We must 'initialize' the scoreboard to relink all the - * process-local pointer arrays into the shared memory block. - */ - ap_init_scoreboard(sb_shared); - - ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, - "Child %d: Retrieved our scoreboard from the parent.", my_pid); -} - - -static int send_handles_to_child(apr_pool_t *p, - HANDLE child_ready_event, - HANDLE child_exit_event, - apr_proc_mutex_t *child_start_mutex, - apr_shm_t *scoreboard_shm, - HANDLE hProcess, - apr_file_t *child_in) -{ - apr_status_t rv; - HANDLE hCurrentProcess = GetCurrentProcess(); - HANDLE hDup; - HANDLE os_start; - HANDLE hScore; - DWORD BytesWritten; - - if (!DuplicateHandle(hCurrentProcess, child_ready_event, hProcess, &hDup, - EVENT_MODIFY_STATE | SYNCHRONIZE, FALSE, 0)) { - ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, - "Parent: Unable to duplicate the ready event handle for the child"); - return -1; - } - if ((rv = apr_file_write_full(child_in, &hDup, sizeof(hDup), &BytesWritten)) - != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, - "Parent: Unable to send the exit event handle to the child"); - return -1; - } - if (!DuplicateHandle(hCurrentProcess, child_exit_event, hProcess, &hDup, - EVENT_MODIFY_STATE | SYNCHRONIZE, FALSE, 0)) { - ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, - "Parent: Unable to duplicate the exit event handle for the child"); - return -1; - } - if ((rv = apr_file_write_full(child_in, &hDup, sizeof(hDup), &BytesWritten)) - != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, - "Parent: Unable to send the exit event handle to the child"); - return -1; - } - if ((rv = apr_os_proc_mutex_get(&os_start, child_start_mutex)) != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, - "Parent: Unable to retrieve the start mutex for the child"); - return -1; - } - if (!DuplicateHandle(hCurrentProcess, os_start, hProcess, &hDup, - SYNCHRONIZE, FALSE, 0)) { - ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, - "Parent: Unable to duplicate the start mutex to the child"); - return -1; - } - if ((rv = apr_file_write_full(child_in, &hDup, sizeof(hDup), &BytesWritten)) - != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, - "Parent: Unable to send the start mutex to the child"); - return -1; - } - if ((rv = apr_os_shm_get(&hScore, scoreboard_shm)) != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, - "Parent: Unable to retrieve the scoreboard handle for the child"); - return -1; - } - if (!DuplicateHandle(hCurrentProcess, hScore, hProcess, &hDup, - FILE_MAP_READ | FILE_MAP_WRITE, FALSE, 0)) { - ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, - "Parent: Unable to duplicate the scoreboard handle to the child"); - return -1; - } - if ((rv = apr_file_write_full(child_in, &hDup, sizeof(hDup), &BytesWritten)) - != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, - "Parent: Unable to send the scoreboard handle to the child"); - return -1; - } - - ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, - "Parent: Sent the scoreboard to the child"); - return 0; -} - - -/* - * get_listeners_from_parent() - * The listen sockets are opened in the parent. This function, which runs - * exclusively in the child process, receives them from the parent and - * makes them availeble in the child. - */ -void get_listeners_from_parent(server_rec *s) -{ - WSAPROTOCOL_INFO WSAProtocolInfo; - ap_listen_rec *lr; - DWORD BytesRead; - int lcnt = 0; - SOCKET nsd; - - /* Set up a default listener if necessary */ - if (ap_listeners == NULL) { - 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 was back in winnt_rewrite_args - * pipe = GetStdHandle(STD_INPUT_HANDLE); - */ - for (lr = ap_listeners; lr; lr = lr->next, ++lcnt) { - if (!ReadFile(pipe, &WSAProtocolInfo, sizeof(WSAPROTOCOL_INFO), - &BytesRead, (LPOVERLAPPED) NULL)) { - ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, - "setup_inherited_listeners: 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, - "Child %d: setup_inherited_listeners(), WSASocket failed to open the inherited socket.", my_pid); - exit(APEXIT_CHILDINIT); - } - - if (osver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) { - HANDLE hProcess = GetCurrentProcess(); - HANDLE dup; - if (DuplicateHandle(hProcess, (HANDLE) nsd, hProcess, &dup, - 0, FALSE, DUPLICATE_SAME_ACCESS)) { - closesocket(nsd); - nsd = (SOCKET) dup; - } - } - else { - /* A different approach. Many users report errors such as - * (32538)An operation was attempted on something that is not - * a socket. : Parent: WSADuplicateSocket failed... - * - * This appears that the duplicated handle is no longer recognized - * as a socket handle. SetHandleInformation should overcome that - * problem by not altering the handle identifier. But this won't - * work on 9x - it's unsupported. - */ - if (!SetHandleInformation((HANDLE)nsd, HANDLE_FLAG_INHERIT, 0)) { - ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_os_error(), ap_server_conf, - "set_listeners_noninheritable: SetHandleInformation failed."); - } - } - apr_os_sock_put(&lr->sd, &nsd, s->process->pool); - } - - ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, - "Child %d: retrieved %d listeners from parent", my_pid, 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; - DWORD 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) { - int nsd; - lpWSAProtocolInfo = apr_pcalloc(p, sizeof(WSAPROTOCOL_INFO)); - apr_os_sock_get(&nsd,lr->sd); - ap_log_error(APLOG_MARK, APLOG_INFO, APR_SUCCESS, ap_server_conf, - "Parent: Duplicating socket %d and sending it to child process %d", - nsd, dwProcessId); - if (WSADuplicateSocket(nsd, dwProcessId, - lpWSAProtocolInfo) == SOCKET_ERROR) { - ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_netos_error(), ap_server_conf, - "Parent: WSADuplicateSocket failed for socket %d. Check the FAQ.", lr->sd ); - 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, - "Parent: Unable to write duplicated socket %d to the child.", lr->sd ); - return -1; - } - } - - ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, - "Parent: Sent %d listeners to child %d", 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; - apr_file_t *child_out, *child_err; - HANDLE hExitEvent; - HANDLE waitlist[2]; /* see waitlist_e */ - char *cmd; - char *cwd; - char **env; - int envc; - - apr_pool_sub_make(&ptemp, p, NULL); - - /* Build the command line. Should look something like this: - * C:/apache/bin/apache.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, - "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, - "Parent: Failed to get full path of %s", - ap_server_conf->process->argv[0]); - apr_pool_destroy(ptemp); - return -1; - } - - args = 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] = 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, - "Parent: Unable to create child stdin pipe."); - apr_pool_destroy(ptemp); - return -1; - } - - /* httpd-2.0/2.2 specific to work around apr_proc_create bugs */ - /* set "NUL" as sysout for the child */ - if (((rv = apr_file_open(&child_out, "NUL", APR_WRITE | APR_READ, APR_OS_DEFAULT,p)) - != APR_SUCCESS) || - ((rv = apr_procattr_child_out_set(attr, child_out, NULL)) - != APR_SUCCESS)) { - ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf, - "Parent: Could not set child process stdout"); - } - if (((rv = apr_file_open_stderr(&child_err, p)) - != APR_SUCCESS) || - ((rv = apr_procattr_child_err_set(attr, child_err, NULL)) - != APR_SUCCESS)) { - ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf, - "Parent: Could not set child process stderr"); - } - - /* 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, - "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, - "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=%i", parent_pid); - env[envc] = pidbuf; - env[envc + 1] = NULL; - - rv = apr_proc_create(&new_child, cmd, args, env, attr, ptemp); - if (rv != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf, - "Parent: Failed to create the child process."); - apr_pool_destroy(ptemp); - CloseHandle(hExitEvent); - CloseHandle(waitlist[waitlist_ready]); - CloseHandle(new_child.hproc); - return -1; - } - apr_file_close(child_out); - ap_log_error(APLOG_MARK, APLOG_NOTICE, APR_SUCCESS, ap_server_conf, - "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 MaxRequestsPerChild. - * - * 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 - * condtion. - * - * 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 restart_pending; - int shutdown_pending; - HANDLE child_exit_event; - HANDLE event_handles[NUM_WAIT_HANDLES]; - DWORD child_pid; - - 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, - "master_main: create child process failed. Exiting."); - shutdown_pending = 1; - goto die_now; - } - 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; - ap_scoreboard_image->parent[0].pid = 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, - "master_main: WaitForMultipeObjects 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, - "master_main: WaitForMultipeObjects 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, - "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, - "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, - "Parent: Received restart signal -- Restarting the server."); - if (ResetEvent(restart_event) == 0) { - ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_os_error(), s, - "Parent: ResetEvent(restart_event) failed."); - } - if (SetEvent(child_exit_event) == 0) { - ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_os_error(), s, - "Parent: SetEvent for child process %d 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_ERR, 0, ap_server_conf, - "Parent: child process exited with status %u -- Aborting.", exitcode); - } - else { - int i; - restart_pending = 1; - ap_log_error(APLOG_MARK, APLOG_NOTICE, APR_SUCCESS, ap_server_conf, - "Parent: child process exited with status %u -- Restarting.", 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; - } - if (restart_pending) { - ++ap_my_generation; - ap_scoreboard_image->global->running_generation = ap_my_generation; - } -die_now: - if (shutdown_pending) - { - int timeout = 30000; /* Timeout is milliseconds */ - winnt_mpm_state = AP_MPMQ_STOPPING; - - /* 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, - "Parent: SetEvent for child process %d 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, - "Parent: Child process exited successfully."); - CloseHandle(event_handles[CHILD_HANDLE]); - event_handles[CHILD_HANDLE] = NULL; - } - else { - ap_log_error(APLOG_MARK,APLOG_NOTICE, APR_SUCCESS, ap_server_conf, - "Parent: Forcing termination of child process %d ", event_handles[CHILD_HANDLE]); - 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. - */ - -AP_DECLARE(apr_status_t) ap_mpm_query(int query_code, int *result) -{ - switch(query_code){ - case AP_MPMQ_MAX_DAEMON_USED: - *result = MAXIMUM_WAIT_OBJECTS; - return APR_SUCCESS; - case AP_MPMQ_IS_THREADED: - *result = AP_MPMQ_STATIC; - 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 = thread_limit; - return APR_SUCCESS; - case AP_MPMQ_MAX_THREADS: - *result = ap_threads_per_child; - return APR_SUCCESS; - case AP_MPMQ_MIN_SPARE_DAEMONS: - *result = 0; - return APR_SUCCESS; - case AP_MPMQ_MIN_SPARE_THREADS: - *result = 0; - return APR_SUCCESS; - case AP_MPMQ_MAX_SPARE_DAEMONS: - *result = 0; - return APR_SUCCESS; - case AP_MPMQ_MAX_SPARE_THREADS: - *result = 0; - return APR_SUCCESS; - case AP_MPMQ_MAX_REQUESTS_DAEMON: - *result = ap_max_requests_per_child; - return APR_SUCCESS; - case AP_MPMQ_MAX_DAEMONS: - *result = 0; - return APR_SUCCESS; - case AP_MPMQ_MPM_STATE: - *result = winnt_mpm_state; - return APR_SUCCESS; - } - return APR_ENOTIMPL; -} - -#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 char *service_name = NULL; - -void winnt_rewrite_args(process_rec *process) -{ - /* Handle the following SCM aspects in this phase: - * - * -k runservice [transition for WinNT, nothing for Win9x] - * -k (!)install [error out if name is not installed] - * -k uninstall - * -k stop - * -k shutdown (same as -k stop). Maintained for backward compatability. - * - * 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 *optarg; - int fixed_args; - char *pid; - apr_getopt_t *opt; - int running_as_service = 1; - int errout = 0; - - pconf = process->pconf; - - osver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); - GetVersionEx(&osver); - - /* AP_PARENT_PID is only valid in the child */ - pid = getenv("AP_PARENT_PID"); - if (pid) - { - HANDLE filehand; - HANDLE hproc = GetCurrentProcess(); - - /* This is the child */ - my_pid = GetCurrentProcessId(); - parent_pid = (DWORD) atol(pid); - - /* Prevent holding open the (nonexistant) console */ - 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 - */ - - /* 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, - "Failed to get the full path of %s", process->argv[0]); - exit(APEXIT_INIT); - } - /* WARNING: There is an implict assumption here that the - * executable resides in ServerRoot or ServerRoot\bin - */ - def_server_root = (char *) apr_filename_of_pathname(binpath); - if (def_server_root > binpath) { - *(def_server_root - 1) = '\0'; - def_server_root = (char *) apr_filename_of_pathname(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, (char**) process->argv); - opt->errfn = NULL; - while ((rv = apr_getopt(opt, "wn:k:" AP_SERVER_BASEARGS, - optbuf + 1, &optarg)) == 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 real_exit_code to 0! - */ - case 'w': - if (real_exit_code) - real_exit_code = 2; - break; - - case 'n': - service_set = mpm_service_set_name(process->pool, &service_name, - optarg); - break; - - case 'k': - signal_arg = optarg; - 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 (optarg) { - *(const char **)apr_array_push(mpm_new_argv) = optarg; - } - 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 (osver.dwPlatformId == VER_PLATFORM_WIN32_NT) - { - apr_file_t *nullfile; - - 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, - "%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, - "Using ConfigArgs of the installed service " - "\"%s\".", service_name); - } - else { - ap_log_error(APLOG_MARK,APLOG_WARNING, rv, NULL, - "No installed ConfigArgs for the service " - "\"%s\", using Apache defaults.", service_name); - } - } - else - { - ap_log_error(APLOG_MARK,APLOG_ERR, service_set, NULL, - "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, - "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; - - 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. - */ - pconf = pconf_; - - if (ap_exists_config_define("ONE_PROCESS") || - ap_exists_config_define("DEBUG")) - one_process = -1; - - if (!strcasecmp(signal_arg, "runservice") - && (osver.dwPlatformId == VER_PLATFORM_WIN32_NT) - && (service_to_start_success != APR_SUCCESS)) { - ap_log_error(APLOG_MARK,APLOG_CRIT, service_to_start_success, NULL, - "%s: Unable to start the service manager.", - service_name); - exit(APEXIT_INIT); - } - - /* Win9x: disable AcceptEx */ - if (osver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) { - use_acceptex = 0; - } - - ap_listen_pre_config(); - ap_threads_per_child = DEFAULT_THREADS_PER_CHILD; - ap_pid_fname = DEFAULT_PIDLOG; - ap_max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD; -#ifdef AP_MPM_WANT_SET_MAX_MEM_FREE - ap_max_mem_free = APR_ALLOCATOR_MAX_FREE_UNLIMITED; -#endif - - apr_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir)); - - return OK; -} - -static int winnt_post_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec* s) -{ - static int restart_num = 0; - apr_status_t rv = 0; - - /* Handle the following SCM aspects in this phase: - * - * -k install - * -k config - * -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")) { - rv = mpm_service_install(ptemp, inst_argc, inst_argv, 0); - apr_pool_destroy(s->process->pool); - apr_terminate(); - exit(rv); - } - if (!strcasecmp(signal_arg, "config")) { - rv = mpm_service_install(ptemp, inst_argc, inst_argv, 1); - apr_pool_destroy(s->process->pool); - apr_terminate(); - exit(rv); - } - - 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 (restart_num++ == 1) - { - /* This code should be run once in the parent and not run - * across a restart - */ - PSECURITY_ATTRIBUTES sa = GetNullACL(); /* returns NULL if invalid (Win95?) */ - setup_signal_names(apr_psprintf(pconf,"ap%d", 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(sa, FALSE, FALSE, signal_shutdown_name); - if (!shutdown_event) { - ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf, - "Parent: Cannot create shutdown event %s", signal_shutdown_name); - CleanNullACL((void *)sa); - 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(sa, 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, - "Parent: Cannot create restart event %s", signal_restart_name); - CleanNullACL((void *)sa); - return HTTP_INTERNAL_SERVER_ERROR; - } - CleanNullACL((void *)sa); - - /* Now that we are flying at 15000 feet... - * wipe out the Win95 service console, - * signal the SCM the WinNT service started, or - * if not a service, setup console handlers instead. - */ - if (!strcasecmp(signal_arg, "runservice")) - { - if (osver.dwPlatformId != VER_PLATFORM_WIN32_NT) - { - rv = mpm_service_to_start(&service_name, - s->process->pool); - if (rv != APR_SUCCESS) { - ap_log_error(APLOG_MARK,APLOG_ERR, rv, ap_server_conf, - "%s: Unable to start the service manager.", - service_name); - return HTTP_INTERNAL_SERVER_ERROR; - } - } - } - - /* Create the start mutex, as an unnamed object for security. - * Ths 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, - "%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. - */ - ap_server_conf = s; - - 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, "no listening sockets available, shutting down"); - return DONE; - } - - 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%d", 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); - - ap_my_generation = ap_scoreboard_image->global->running_generation; - } - 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, - "%s child %d: Unable to init the start_mutex.", - service_name, my_pid); - exit(APEXIT_CHILDINIT); - } - - /* Borrow the shutdown_even as our _child_ loop exit event */ - exit_event = shutdown_event; - } -} - - -AP_DECLARE(int) ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s ) -{ - static int restart = 0; /* Default is "not a restart" */ - - if (!restart) { - first_thread_limit = thread_limit; - } - - if (changed_limit_at_restart) { - ap_log_error(APLOG_MARK, APLOG_WARNING, APR_SUCCESS, ap_server_conf, - "WARNING: Attempt to change ThreadLimit ignored " - "during restart"); - changed_limit_at_restart = 0; - } - - /* ### 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 1; - } - } - - if ((parent_pid != my_pid) || one_process) - { - /* The child process or in one_process (debug) mode - */ - ap_log_error(APLOG_MARK, APLOG_NOTICE, APR_SUCCESS, ap_server_conf, - "Child %d: Child process is running", my_pid); - - child_main(pconf); - - ap_log_error(APLOG_MARK, APLOG_NOTICE, APR_SUCCESS, ap_server_conf, - "Child %d: Child process is exiting", my_pid); - return 1; - } - else - { - /* A real-honest to goodness parent */ - ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, - "%s configured -- resuming normal operations", - ap_get_server_version()); - ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf, - "Server built: %s", ap_get_server_built()); - - restart = master_main(ap_server_conf, shutdown_event, restart_event); - - if (!restart) - { - /* Shutting down. Clean up... */ - const char *pidfile = ap_server_root_relative (pconf, ap_pid_fname); - - if (pidfile != NULL && unlink(pidfile) == 0) { - ap_log_error(APLOG_MARK, APLOG_INFO, APR_SUCCESS, - ap_server_conf, "removed PID file %s (pid=%ld)", - pidfile, GetCurrentProcessId()); - } - apr_proc_mutex_destroy(start_mutex); - - CloseHandle(restart_event); - CloseHandle(shutdown_event); - - return 1; - } - } - - return 0; /* Restart */ -} - -static void winnt_hooks(apr_pool_t *p) -{ - /* The prefork open_logs phase 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_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_MIDDLE); -} - -AP_MODULE_DECLARE_DATA module mpm_winnt_module = { - 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 */ |