/* ====================================================================
- * Copyright (c) 1995-1999 The Apache Group. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- * nor may "Apache" appear in their names without prior written
- * permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2000 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ * if any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Apache" and "Apache Software Foundation" must
+ * not be used to endorse or promote products derived from this
+ * software without prior written permission. For written
+ * permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache",
+ * nor may "Apache" appear in their name, without prior written
+ * permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ *
+ * Portions of this software are based upon public domain software
+ * originally written at the National Center for Supercomputing Applications,
+ * University of Illinois, Urbana-Champaign.
+ */
+
#define CORE_PRIVATE
-#include "apr_portable.h"
#include "httpd.h"
#include "http_main.h"
#include "http_log.h"
#include "http_config.h" /* for read_config */
#include "http_core.h" /* for get_remote_host */
#include "http_connection.h"
+#include "apr_portable.h"
+#include "apr_getopt.h"
+#include "apr_strings.h"
#include "ap_mpm.h"
#include "ap_config.h"
#include "ap_listen.h"
-#include "../os/win32/getopt.h"
#include "mpm_default.h"
-#include "../os/win32/iol_socket.h"
-#include "winnt.h"
+#include "mpm_winnt.h"
+#include "mpm_common.h"
+typedef HANDLE thread;
/*
* Definitions of WINNT MPM specific config globals
*/
+static int workers_may_exit = 0;
+static int shutdown_in_progress = 0;
+static unsigned int g_blocked_threads = 0;
-static char *mpm_pid_fname=NULL;
+static char *ap_pid_fname = NULL;
static int ap_threads_per_child = 0;
-static int workers_may_exit = 0;
+
static int max_requests_per_child = 0;
+static HANDLE shutdown_event; /* used to signal shutdown to parent */
+static HANDLE restart_event; /* used to signal a restart to parent */
+
+#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];
static struct fd_set listenfds;
static int num_listenfds = 0;
static SOCKET listenmaxfd = INVALID_SOCKET;
-static ap_context_t *pconf; /* Pool for config stuff */
+static apr_pool_t *pconf; /* Pool for config stuff */
static char ap_coredump_dir[MAX_STRING_LEN];
static server_rec *server_conf;
-HANDLE AcceptExCompPort = NULL;
+static HANDLE AcceptExCompPort = NULL;
static int one_process = 0;
+static char const* signal_arg;
-static OSVERSIONINFO osver; /* VER_PLATFORM_WIN32_NT */
+OSVERSIONINFO osver; /* VER_PLATFORM_WIN32_NT */
int ap_max_requests_per_child=0;
int ap_daemons_to_start=0;
-event *exit_event;
-ap_lock_t *start_mutex;
-int my_pid;
-int parent_pid;
-
+static HANDLE exit_event;
+static HANDLE maintenance_event;
+apr_lock_t *start_mutex;
+DWORD my_pid;
+DWORD parent_pid;
-/* A bunch or routines from os/win32/multithread.c that need to be merged into APR
- * or thrown out entirely...
+/* This is the helper code to resolve late bound entry points
+ * missing from one or more releases of the Win32 API...
+ * but it sure would be nice if we didn't duplicate this code
+ * from the APR ;-)
*/
-static int
-map_rv(int rv)
+static const char* const lateDllName[DLL_defined] = {
+ "kernel32", "advapi32", "mswsock", "ws2_32" };
+static HMODULE lateDllHandle[DLL_defined] = {
+ NULL, NULL, NULL, NULL };
+
+FARPROC ap_load_dll_func(ap_dlltoken_e fnLib, char* fnName, int ordinal)
{
- switch(rv)
- {
- case WAIT_OBJECT_0:
- case WAIT_ABANDONED:
- return(MULTI_OK);
- case WAIT_TIMEOUT:
- return(MULTI_TIMEOUT);
- case WAIT_FAILED:
- return(MULTI_ERR);
- default:
- ap_assert(0);
- }
-
- ap_assert(0);
- return(0);
+ if (!lateDllHandle[fnLib]) {
+ lateDllHandle[fnLib] = LoadLibrary(lateDllName[fnLib]);
+ if (!lateDllHandle[fnLib])
+ return NULL;
+ }
+ if (ordinal)
+ return GetProcAddress(lateDllHandle[fnLib], (char *) ordinal);
+ else
+ return GetProcAddress(lateDllHandle[fnLib], fnName);
}
-typedef void semaphore;
-typedef void event;
+static apr_status_t socket_cleanup(void *sock)
+{
+ apr_socket_t *thesocket = sock;
+ SOCKET sd;
+ if (apr_get_os_sock(&sd, thesocket) == APR_SUCCESS) {
+ closesocket(sd);
+ }
+ return APR_SUCCESS;
+}
+
+/* A bunch or routines from os/win32/multithread.c that need to be merged into APR
+ * or thrown out entirely...
+ */
-static semaphore *
-create_semaphore(int initial)
+static HANDLE create_semaphore(int initial)
{
return(CreateSemaphore(NULL, initial, 1000000, NULL));
}
-static int acquire_semaphore(semaphore *semaphore_id)
+static void acquire_semaphore(HANDLE semaphore_id)
{
int rv;
rv = WaitForSingleObject(semaphore_id, INFINITE);
- return(map_rv(rv));
+ return;
}
-static int release_semaphore(semaphore *semaphore_id)
+static int release_semaphore(HANDLE semaphore_id)
{
return(ReleaseSemaphore(semaphore_id, 1, NULL));
}
-static void destroy_semaphore(semaphore *semaphore_id)
+static void destroy_semaphore(HANDLE semaphore_id)
{
CloseHandle(semaphore_id);
}
-static event *
-create_event(int manual, int initial, char *name)
-{
- return(CreateEvent(NULL, manual, initial, name));
-}
-
-static event *
-open_event(char *name)
-{
- return(OpenEvent(EVENT_ALL_ACCESS, FALSE, name));
-}
-
-
-static int acquire_event(event *event_id)
+/* To share the semaphores with other processes, we need a NULL ACL
+ * Code from MS KB Q106387
+ */
+static PSECURITY_ATTRIBUTES GetNullACL()
{
- int rv;
-
- rv = WaitForSingleObject(event_id, INFINITE);
-
- return(map_rv(rv));
-}
+ PSECURITY_DESCRIPTOR pSD;
+ PSECURITY_ATTRIBUTES sa;
-static int set_event(event *event_id)
-{
- return(SetEvent(event_id));
+ sa = (PSECURITY_ATTRIBUTES) LocalAlloc(LPTR, sizeof(SECURITY_ATTRIBUTES));
+ pSD = (PSECURITY_DESCRIPTOR) LocalAlloc(LPTR,
+ SECURITY_DESCRIPTOR_MIN_LENGTH);
+ if (pSD == NULL || sa == NULL) {
+ return NULL;
+ }
+ apr_set_os_error(0);
+ if (!InitializeSecurityDescriptor(pSD, SECURITY_DESCRIPTOR_REVISION)
+ || apr_get_os_error()) {
+ LocalFree( pSD );
+ LocalFree( sa );
+ return NULL;
+ }
+ if (!SetSecurityDescriptorDacl(pSD, TRUE, (PACL) NULL, FALSE)
+ || apr_get_os_error()) {
+ LocalFree( pSD );
+ LocalFree( sa );
+ return NULL;
+ }
+ sa->nLength = sizeof(sa);
+ sa->lpSecurityDescriptor = pSD;
+ sa->bInheritHandle = TRUE;
+ return sa;
}
-static int reset_event(event *event_id)
-{
- return(ResetEvent(event_id));
+static void CleanNullACL( void *sa ) {
+ if( sa ) {
+ LocalFree( ((PSECURITY_ATTRIBUTES)sa)->lpSecurityDescriptor);
+ LocalFree( sa );
+ }
}
-
-static void destroy_event(event *event_id)
+/*
+ * The Win32 call WaitForMultipleObjects will only allow you to wait for
+ * a maximum of MAXIMUM_WAIT_OBJECTS (current 64). Since the threading
+ * model in the multithreaded version of apache wants to use this call,
+ * we are restricted to a maximum of 64 threads. This is a simplistic
+ * routine that will increase this size.
+ */
+static DWORD wait_for_many_objects(DWORD nCount, CONST HANDLE *lpHandles,
+ DWORD dwSeconds)
{
- CloseHandle(event_id);
+ time_t tStopTime;
+ DWORD dwRet = WAIT_TIMEOUT;
+ DWORD dwIndex=0;
+ BOOL bFirst = TRUE;
+
+ tStopTime = time(NULL) + dwSeconds;
+
+ do {
+ if (!bFirst)
+ Sleep(1000);
+ else
+ bFirst = FALSE;
+
+ for (dwIndex = 0; dwIndex * MAXIMUM_WAIT_OBJECTS < nCount; dwIndex++) {
+ dwRet = WaitForMultipleObjects(
+ min(MAXIMUM_WAIT_OBJECTS, nCount - (dwIndex * MAXIMUM_WAIT_OBJECTS)),
+ lpHandles + (dwIndex * MAXIMUM_WAIT_OBJECTS),
+ 0, 0);
+
+ if (dwRet != WAIT_TIMEOUT) {
+ break;
+ }
+ }
+ } while((time(NULL) < tStopTime) && (dwRet == WAIT_TIMEOUT));
+
+ return dwRet;
}
/*
* On entry, type gives the event to signal. 0 means shutdown, 1 means
* graceful restart.
*/
-
-static void signal_parent(int type)
+void signal_parent(int type)
{
HANDLE e;
char *signal_name;
- extern char signal_shutdown_name[];
- extern char signal_restart_name[];
-
+
/* after updating the shutdown_pending or restart flags, we need
* to wake up the parent process so it can see the changes. The
* parent will normally be waiting for either a child process
case 1: signal_name = signal_restart_name; break;
default: return;
}
-
e = OpenEvent(EVENT_ALL_ACCESS, 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, GetLastError(), server_conf,
- "OpenEvent on %s event", signal_name);
+ ap_log_error(APLOG_MARK, APLOG_EMERG, apr_get_os_error(), server_conf,
+ "OpenEvent on %s event", signal_name);
return;
}
if (SetEvent(e) == 0) {
/* Same problem as above */
- ap_log_error(APLOG_MARK, APLOG_EMERG, GetLastError(), server_conf,
- "SetEvent on %s event", signal_name);
+ ap_log_error(APLOG_MARK, APLOG_EMERG, apr_get_os_error(), server_conf,
+ "SetEvent on %s event", signal_name);
CloseHandle(e);
return;
}
CloseHandle(e);
}
-void ap_start_shutdown(void)
+
+static int volatile is_graceful = 0;
+
+AP_DECLARE(int) ap_graceful_stop_signalled(void)
+{
+ return is_graceful;
+}
+
+AP_DECLARE(void) ap_start_shutdown(void)
{
signal_parent(0);
}
-void ap_start_restart(int graceful)
+
+AP_DECLARE(void) ap_start_restart(int gracefully)
{
+ is_graceful = gracefully;
signal_parent(1);
}
-static int volatile is_graceful = 0;
-API_EXPORT(int) ap_graceful_stop_signalled(void)
+/*
+ * Initialise the signal names, in the global variables signal_name_prefix,
+ * signal_restart_name and signal_shutdown_name.
+ */
+
+void setup_signal_names(char *prefix)
{
- return is_graceful;
+ 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);
}
/*
* Routines that deal with sockets, some are WIN32 specific...
*/
-static int s_iInitCount = 0;
-static int AMCSocketInitialize(void)
-{
- int iVersionRequested;
- WSADATA wsaData;
- int err;
-
- if (s_iInitCount > 0) {
- s_iInitCount++;
- return (0);
- }
- else if (s_iInitCount < 0)
- return (s_iInitCount);
-
- /* s_iInitCount == 0. Do the initailization */
- iVersionRequested = MAKEWORD(2, 0);
- err = WSAStartup((WORD) iVersionRequested, &wsaData);
- if (err) {
- s_iInitCount = -1;
- return (s_iInitCount);
- }
- if (LOBYTE(wsaData.wVersion) != 1 ||
- HIBYTE(wsaData.wVersion) != 1) {
- s_iInitCount = -2;
- WSACleanup();
- return (s_iInitCount);
- }
-
- s_iInitCount++;
- return (s_iInitCount);
-
-}
-static void AMCSocketCleanup(void)
-{
- if (--s_iInitCount == 0)
- WSACleanup();
- return;
-}
-static void sock_disable_nagle(int s) /* ZZZ abstract */
+static void sock_disable_nagle(int s)
{
/* The Nagle algorithm says that we should delay sending partial
* packets in hopes of getting more data. We don't want to do
* Routines to deal with managing the list of listening sockets.
*/
static ap_listen_rec *head_listener;
-static ap_inline ap_listen_rec *find_ready_listener(fd_set * main_fds)
+
+static apr_inline ap_listen_rec *find_ready_listener(fd_set * main_fds)
{
ap_listen_rec *lr;
SOCKET nsd;
for (lr = head_listener; lr ; lr = lr->next) {
- ap_get_os_sock(&nsd, lr->sd);
+ apr_get_os_sock(&nsd, lr->sd);
if (FD_ISSET(nsd, main_fds)) {
head_listener = lr->next;
if (head_listener == NULL)
}
return NULL;
}
+
static int setup_listeners(server_rec *s)
{
ap_listen_rec *lr;
for (lr = ap_listeners; lr; lr = lr->next) {
num_listeners++;
if (lr->sd != NULL) {
- ap_get_os_sock(&nsd, lr->sd);
+ apr_get_os_sock(&nsd, lr->sd);
FD_SET(nsd, &listenfds);
if (listenmaxfd == INVALID_SOCKET || nsd > listenmaxfd) {
listenmaxfd = nsd;
if (ap_listeners == NULL) {
ap_listen_rec *lr;
- lr = ap_palloc(s->process->pool, sizeof(ap_listen_rec));
+ lr = apr_palloc(s->process->pool, sizeof(ap_listen_rec));
if (!lr)
return 0;
lr->sd = NULL;
for (lr = ap_listeners; lr; lr = lr->next) {
if (!ReadFile(pipe, &WSAProtocolInfo, sizeof(WSAPROTOCOL_INFO),
&BytesRead, (LPOVERLAPPED) NULL)) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, GetLastError(), server_conf,
+ ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), server_conf,
"setup_inherited_listeners: Unable to read socket data from parent");
signal_parent(0); /* tell parent to die */
exit(1);
}
ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, APR_SUCCESS, server_conf,
- "BytesRead = %d WSAProtocolInfo = %x20", BytesRead, WSAProtocolInfo);
+ "Child %d: setup_inherited_listener() read = %d bytes of WSAProtocolInfo.", my_pid);
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, WSAGetLastError(), server_conf,
- "setup_inherited_listeners: WSASocket failed to open the inherited socket.");
+ ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_netos_error(), server_conf,
+ "Child %d: setup_inherited_listeners(), WSASocket failed to open the inherited socket.", my_pid);
signal_parent(0); /* tell parent to die */
exit(1);
}
listenmaxfd = nsd;
}
}
-// ap_register_cleanup(p, (void *)lr->sd, socket_cleanup, ap_null_cleanup);
- ap_put_os_sock(&lr->sd, &nsd, pconf);
+ apr_put_os_sock(&lr->sd, &nsd, pconf);
lr->count = 0;
}
+ /* Now, read the AcceptExCompPort from the parent */
+ ReadFile(pipe, &AcceptExCompPort, sizeof(AcceptExCompPort), &BytesRead, (LPOVERLAPPED) NULL);
CloseHandle(pipe);
-
for (lr = ap_listeners; lr; lr = lr->next) {
num_listeners++;
}
head_listener = ap_listeners;
-
return num_listeners;
}
+static void bind_listeners_to_completion_port()
+{
+ /* Associate the open listeners with the completion port.
+ * Bypass the operation for Windows 95/98
+ */
+ ap_listen_rec *lr;
+
+ if (osver.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS) {
+ for (lr = ap_listeners; lr; lr = lr->next) {
+ int nsd;
+ apr_get_os_sock(&nsd,lr->sd);
+ CreateIoCompletionPort((HANDLE) nsd, AcceptExCompPort, 0, 0);
+ }
+ }
+}
/**********************************************************************
* Multithreaded implementation
* the connection has finished the thread is free to take another
* job from the job list.
*
- * In the code, the "main" thread is running within the worker_main()
+ * In the code, the "main" thread is running within the child_main()
* function. The first thing this function does is create the
* worker threads, which operate in the child_sub_main() function. The
- * main thread then goes into a loop within worker_main() where they
+ * main thread then goes into a loop within child_main() where they
* do a select() on the listening sockets. The select times out once
* per second so that the thread can check for an "exit" signal
* from the parent process (see below). If this signal is set, the
* process is active at once.
**********************************************************************/
-int service_init()
-{
-/*
- common_init();
-
- ap_cpystrn(ap_server_root, HTTPD_ROOT, sizeof(ap_server_root));
- if (ap_registry_get_service_conf(pconf, ap_server_confname, sizeof(ap_server_confname),
- ap_server_argv0))
- return FALSE;
-
- ap_setup_prelinked_modules();
- server_conf = ap_read_config(pconf, ptrans, ap_server_confname);
- ap_log_pid(pconf, ap_pid_fname);
- post_parse_init();
-*/
- return TRUE;
-}
/*
* Definition of jobs, shared by main and worker threads.
*/
typedef struct globals_s {
- semaphore *jobsemaphore;
+ HANDLE jobsemaphore;
joblist *jobhead;
joblist *jobtail;
- ap_lock_t *jobmutex;
+ apr_lock_t *jobmutex;
int jobcount;
+
} globals;
globals allowed_globals =
{NULL, NULL, NULL, NULL, 0};
#define MAX_SELECT_ERRORS 100
#define PADDED_ADDR_SIZE sizeof(SOCKADDR_IN)+16
-/*
- * add_job()/remove_job() - add or remove an accepted socket from the
- * list of sockets connected to clients. allowed_globals.jobmutex protects
- * against multiple concurrent access to the linked list of jobs.
+
+/* Windows 9x specific code...
+ * Accept processing for on Windows 95/98 uses a producer/consumer queue
+ * model. A single thread accepts connections and queues the accepted socket
+ * to the accept queue for consumption by a pool of worker threads.
+ *
+ * win9x_get_connection()
+ * Calls remove_job() to pull a job from the accept queue. All the worker
+ * threads block on remove_job.
+ * accept_and_queue_connections()
+ * The accept threads runs this function, which accepts connections off
+ * the network and calls add_job() to queue jobs to the accept_queue.
+ * add_job()/remove_job()
+ * Add or remove an accepted socket from the list of sockets
+ * connected to clients. allowed_globals.jobmutex protects
+ * against multiple concurrent access to the linked list of jobs.
*/
-#if 0
static void add_job(int sock)
{
joblist *new_job;
new_job = (joblist *) malloc(sizeof(joblist));
if (new_job == NULL) {
- fprintf(stderr, "Ouch! Out of memory in add_job()!\n");
+ ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
+ "Ouch! Out of memory in add_job()!");
return;
}
new_job->next = NULL;
new_job->sock = sock;
- ap_lock(allowed_globals.jobmutex);
+ apr_lock(allowed_globals.jobmutex);
if (allowed_globals.jobtail != NULL)
allowed_globals.jobtail->next = new_job;
allowed_globals.jobcount++;
release_semaphore(allowed_globals.jobsemaphore);
- ap_unlock(allowed_globals.jobmutex);
+ apr_unlock(allowed_globals.jobmutex);
}
static int remove_job(void)
int sock;
acquire_semaphore(allowed_globals.jobsemaphore);
- ap_lock(allowed_globals.jobmutex);
+ apr_lock(allowed_globals.jobmutex);
- if (workers_may_exit && !allowed_globals.jobhead) {
- ap_unlock(allowed_globals.jobmutex);
+ if (shutdown_in_progress && !allowed_globals.jobhead) {
+ apr_unlock(allowed_globals.jobmutex);
return (-1);
}
job = allowed_globals.jobhead;
allowed_globals.jobhead = job->next;
if (allowed_globals.jobhead == NULL)
allowed_globals.jobtail = NULL;
- ap_unlock(allowed_globals.jobmutex);
+ apr_unlock(allowed_globals.jobmutex);
sock = job->sock;
free(job);
struct timeval tv;
fd_set main_fds;
int wait_time = 1;
-// int csd;
- ap_socket_t *csd = NULL;
-// int sd = -1;
- ap_socket_t *sd = NULL;
+ int csd;
+ int nsd = INVALID_SOCKET;
struct sockaddr_in sa_client;
int count_select_errors = 0;
int rc;
int clen;
- while (!workers_may_exit) {
+ while (!shutdown_in_progress) {
if (ap_max_requests_per_child && (requests_this_child > ap_max_requests_per_child)) {
break;
}
tv.tv_usec = 0;
memcpy(&main_fds, &listenfds, sizeof(fd_set));
- rc = ap_select(listenmaxfd + 1, &main_fds, NULL, NULL, &tv);
+ rc = select(listenmaxfd + 1, &main_fds, NULL, NULL, &tv);
- if (rc == 0 || (rc == SOCKET_ERROR && h_errno == WSAEINTR)) {
+ if (rc == 0 || (rc == SOCKET_ERROR && APR_STATUS_IS_EINTR(apr_get_netos_error()))) {
count_select_errors = 0; /* reset count of errors */
continue;
}
* select errors. This count is used to ensure we don't go into
* a busy loop of continuous errors.
*/
- ap_log_error(APLOG_MARK, APLOG_INFO, h_errno, server_conf,
- "select failed with errno %d", h_errno);
+ ap_log_error(APLOG_MARK, APLOG_INFO, apr_get_netos_error(), server_conf,
+ "select failed with error %d", apr_get_netos_error());
count_select_errors++;
if (count_select_errors > MAX_SELECT_ERRORS) {
- workers_may_exit = 1;
- ap_log_error(APLOG_MARK, APLOG_ERR, h_errno, server_conf,
+ shutdown_in_progress = 1;
+ ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_netos_error(), server_conf,
"Too many errors in select loop. Child process exiting.");
break;
}
lr = find_ready_listener(&main_fds);
if (lr != NULL) {
- sd = lr->sd;
+ /* fetch the native socket descriptor */
+ apr_get_os_sock(&nsd, lr->sd);
}
}
do {
- clen = sizeof(sa_client);
- csd = accept(sd, (struct sockaddr *) &sa_client, &clen);
- if (csd == INVALID_SOCKET) {
- csd = -1;
- }
- } while (csd < 0 && h_errno == WSAEINTR);
+ clen = sizeof(sa_client);
+ csd = accept(nsd, (struct sockaddr *) &sa_client, &clen);
+ if (csd == INVALID_SOCKET) {
+ csd = -1;
+ }
+ } while (csd < 0 && APR_STATUS_IS_EINTR(apr_get_netos_error()));
if (csd < 0) {
- if (h_errno != WSAECONNABORTED) {
- ap_log_error(APLOG_MARK, APLOG_ERR, h_errno, server_conf,
+ if (APR_STATUS_IS_ECONNABORTED(apr_get_netos_error())) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_netos_error(), server_conf,
"accept: (client socket)");
}
}
static PCOMP_CONTEXT win9x_get_connection(PCOMP_CONTEXT context)
{
int len;
+
+ if (context == NULL) {
+ /* allocate the completion context and the transaction pool */
+ context = apr_pcalloc(pconf, sizeof(COMP_CONTEXT));
+ if (!context) {
+ ap_log_error(APLOG_MARK,APLOG_ERR, apr_get_os_error(), server_conf,
+ "win9x_get_connection: apr_pcalloc() failed. Process will exit.");
+ return NULL;
+ }
+ apr_create_pool(&context->ptrans, pconf);
+ }
+
+
while (1) {
+ apr_clear_pool(context->ptrans);
context->accept_socket = remove_job();
if (context->accept_socket == -1) {
- CloseHandle(context->Overlapped.hEvent); /* TODO: Clean up in the caller not here */
return NULL;
}
-
- len = sizeof(struct sockaddr);
+ len = sizeof(struct sockaddr);
+ context->sa_server = apr_palloc(context->ptrans, len);
if (getsockname(context->accept_socket,
- &context->sa_server, &len)== SOCKET_ERROR) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, h_errno, server_conf,
- "getsockname failed with error %d\n", WSAGetLastError());
+ context->sa_server, &len)== SOCKET_ERROR) {
+ ap_log_error(APLOG_MARK, APLOG_WARNING, apr_get_netos_error(), server_conf,
+ "getsockname failed");
continue;
}
-
len = sizeof(struct sockaddr);
+ context->sa_client = apr_palloc(context->ptrans, len);
if ((getpeername(context->accept_socket,
- &context->sa_client, &len)) == SOCKET_ERROR) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, h_errno, server_conf,
- "getpeername failed with error %d\n", WSAGetLastError());
+ context->sa_client, &len)) == SOCKET_ERROR) {
+ ap_log_error(APLOG_MARK, APLOG_WARNING, apr_get_netos_error(), server_conf,
+ "getpeername failed");
memset(&context->sa_client, '\0', sizeof(context->sa_client));
}
+ /* do we NEED_DUPPED_CSD ?? */
+
return context;
}
}
-#endif
+
/*
- * Windows NT specific code...
+ * Windows 2000/NT specific code...
+ * create_acceptex_context()
+ * reset_acceptex_context()
+ * drain_acceptex_complport()
+ * winnt_get_connection()
+ *
+ * TODO: Insert a discussion of 'completion contexts' and what these function do here...
*/
-static int create_and_queue_completion_context(ap_context_t *p, ap_listen_rec *lr)
+static void drain_acceptex_complport(HANDLE hComplPort, BOOLEAN bCleanUp)
+{
+ LPOVERLAPPED pol;
+ PCOMP_CONTEXT context;
+ int rc;
+ DWORD BytesRead;
+ DWORD CompKey;
+
+ while (1) {
+ context = NULL;
+ rc = GetQueuedCompletionStatus(hComplPort, &BytesRead, &CompKey,
+ &pol, 1000);
+ if (!rc) {
+ rc = apr_get_os_error();
+ if (rc == APR_FROM_OS_ERROR(ERROR_OPERATION_ABORTED)) {
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, APR_SUCCESS, server_conf,
+ "Child %d: Draining an ABORTED packet off "
+ "the AcceptEx completion port.", my_pid);
+ continue;
+ }
+ break;
+ }
+ ap_log_error(APLOG_MARK, APLOG_INFO, APR_SUCCESS, server_conf,
+ "Child %d: Draining and discarding an active connection "
+ "off the AcceptEx completion port.", my_pid);
+ context = (PCOMP_CONTEXT) pol;
+ if (context && bCleanUp) {
+ /* It is only valid to clean-up in the process that initiated the I/O */
+ closesocket(context->accept_socket);
+ CloseHandle(context->Overlapped.hEvent);
+ }
+ }
+}
+static int create_acceptex_context(apr_pool_t *_pconf, ap_listen_rec *lr)
{
PCOMP_CONTEXT context;
DWORD BytesRead;
SOCKET nsd;
- context = ap_pcalloc(p, sizeof(COMP_CONTEXT));
+ int lasterror;
- if (!context)
+ /* allocate the completion context */
+ context = apr_pcalloc(_pconf, sizeof(COMP_CONTEXT));
+ if (!context) {
+ ap_log_error(APLOG_MARK,APLOG_ERR, apr_get_os_error(), server_conf,
+ "create_acceptex_context: apr_pcalloc() failed. Process will exit.");
return -1;
+ }
+ /* initialize the completion context */
context->lr = lr;
context->Overlapped.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
+ if (context->Overlapped.hEvent == NULL) {
+ ap_log_error(APLOG_MARK,APLOG_ERR, apr_get_os_error(), server_conf,
+ "create_acceptex_context: CreateEvent() failed. Process will exit.");
+ return -1;
+ }
+ /* create and initialize the accept socket */
+ apr_get_os_sock(&nsd, context->lr->sd);
context->accept_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
- ap_create_context(&context->ptrans, p);
- context->conn_io = ap_bcreate(context->ptrans, B_RDWR);
- context->recv_buf = context->conn_io->inbase;
- context->recv_buf_size = context->conn_io->bufsiz - 2*PADDED_ADDR_SIZE;
- ap_get_os_sock(&nsd, context->lr->sd);
-
- AcceptEx(nsd,//context->lr->fd,
- context->accept_socket,
- context->recv_buf,
- context->recv_buf_size,
- PADDED_ADDR_SIZE,
- PADDED_ADDR_SIZE,
- &BytesRead,
- (LPOVERLAPPED) context);
+ if (context->accept_socket == INVALID_SOCKET) {
+ ap_log_error(APLOG_MARK,APLOG_ERR, apr_get_netos_error(), server_conf,
+ "create_acceptex_context: socket() failed. Process will exit.");
+ return -1;
+ }
+
+ /* SO_UPDATE_ACCEPT_CONTEXT is required for shutdown() to work */
+ if (setsockopt(context->accept_socket, SOL_SOCKET,
+ SO_UPDATE_ACCEPT_CONTEXT, (char *)&nsd,
+ sizeof(nsd))) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_netos_error(), server_conf,
+ "setsockopt(SO_UPDATE_ACCEPT_CONTEXT) failed.");
+ /* Not a failure condition. Keep running. */
+ }
+
+ apr_create_pool(&context->ptrans, _pconf);
+
+ /* recv_buf must be large enough to hold the remote and local
+ * addresses. Note that recv_buf_size is the amount of recv_buf
+ * available for AcceptEx to receive bytes into. Since we
+ * don't want AcceptEx to do a recv, set the size to 0.
+ */
+ context->recv_buf = apr_pcalloc(_pconf, 2*PADDED_ADDR_SIZE);
+ context->recv_buf_size = 0;
+
+ /* AcceptEx on the completion context. The completion context will be signaled
+ * when a connection is accepted. */
+ if (!AcceptEx(nsd, context->accept_socket,
+ context->recv_buf,
+ context->recv_buf_size,
+ PADDED_ADDR_SIZE, PADDED_ADDR_SIZE,
+ &BytesRead,
+ (LPOVERLAPPED) context)) {
+ lasterror = apr_get_netos_error();
+ if (lasterror != APR_FROM_OS_ERROR(ERROR_IO_PENDING)) {
+ ap_log_error(APLOG_MARK,APLOG_ERR, lasterror, server_conf,
+ "create_acceptex_context: AcceptEx failed. Process will exit.");
+ return -1;
+ }
+ }
lr->count++;
-// num_comp_contexts++;
return 0;
}
-static ap_inline void reset_completion_context(PCOMP_CONTEXT context)
+static apr_inline apr_status_t reset_acceptex_context(PCOMP_CONTEXT context)
{
DWORD BytesRead;
SOCKET nsd;
- int rc;
- context->lr->count++;
+ int rc, i;
+
+ /* reset the buffer pools */
+ apr_clear_pool(context->ptrans);
+ context->sock = NULL;
+
+ /* recreate and initialize the accept socket if it is not being reused */
+ apr_get_os_sock(&nsd, context->lr->sd);
+
+ /* AcceptEx on the completion context. The completion context will be signaled
+ * when a connection is accepted. Hack Alert: TransmitFile, under certain
+ * circumstances, can 'recycle' accept sockets, saving the overhead of calling
+ * socket(). Occasionally this fails (usually when the client closes his end
+ * of the connection early). When this occurs, AcceptEx will fail with 10022,
+ * Invalid Parameter. When this occurs, just open a fresh accept socket and
+ * retry the call.
+ */
+ for (i=0; i<2; i++) {
+ if (context->accept_socket == INVALID_SOCKET) {
+ context->accept_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+ if (context->accept_socket == INVALID_SOCKET) {
+ rc = apr_get_netos_error();
+ ap_log_error(APLOG_MARK,APLOG_ERR, rc, server_conf,
+ "reset_acceptex_context: socket() failed. Process will exit.");
+ return rc;
+ }
- if (context->accept_socket == -1)
- context->accept_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+ /* SO_UPDATE_ACCEPT_CONTEXT is required for shutdown() to work */
+ if (setsockopt(context->accept_socket, SOL_SOCKET,
+ SO_UPDATE_ACCEPT_CONTEXT, (char *)&nsd, sizeof(nsd))) {
+ ap_log_error(APLOG_MARK, APLOG_WARNING, apr_get_netos_error(),
+ server_conf,
+ "setsockopt(SO_UPDATE_ACCEPT_CONTEXT) failed.");
+ }
+ }
- ap_clear_pool(context->ptrans);
- context->conn_io = ap_bcreate(context->ptrans, B_RDWR);
- context->recv_buf = context->conn_io->inbase;
- context->recv_buf_size = context->conn_io->bufsiz - 2*PADDED_ADDR_SIZE;
- ap_get_os_sock(&nsd, context->lr->sd);
+ if (!AcceptEx(nsd, context->accept_socket,
+ context->recv_buf,
+ context->recv_buf_size,
+ PADDED_ADDR_SIZE,
+ PADDED_ADDR_SIZE,
+ &BytesRead,
+ (LPOVERLAPPED) context)) {
+
+ rc = apr_get_netos_error();
+ if (rc != APR_FROM_OS_ERROR(ERROR_IO_PENDING)) {
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, rc, server_conf,
+ "reset_acceptex_context: AcceptEx failed for "
+ "listening socket: %d and accept socket: %d. Getting a new accept socket.",
+ nsd, context->accept_socket);
+ closesocket(context->accept_socket);
+ context->accept_socket = INVALID_SOCKET;
+ continue;
+ }
+ }
+ break;
+ }
- rc = AcceptEx(nsd, //context->lr->fd,
- context->accept_socket,
- context->recv_buf,
- context->recv_buf_size,
- PADDED_ADDR_SIZE,
- PADDED_ADDR_SIZE,
- &BytesRead,
- (LPOVERLAPPED) context);
+ context->lr->count++;
+
+ return APR_SUCCESS;
}
static PCOMP_CONTEXT winnt_get_connection(PCOMP_CONTEXT context)
{
int requests_this_child = 0;
int rc;
-
LPOVERLAPPED pol;
DWORD CompKey;
DWORD BytesRead;
+
if (context != NULL) {
- context->accept_socket = -1; /* Don't reuse the socket */
- reset_completion_context(context);
- }
-
- rc = GetQueuedCompletionStatus(AcceptExCompPort,
- &BytesRead,
- &CompKey,
- &pol,
- INFINITE);
- context = (PCOMP_CONTEXT) pol;
- if (CompKey == 999) {
- if (context) {
- closesocket(context->accept_socket);
+ if (shutdown_in_progress) {
+ /* Clean-up the AcceptEx completion context */
CloseHandle(context->Overlapped.hEvent);
- return NULL;
+ if (context->accept_socket != INVALID_SOCKET)
+ closesocket(context->accept_socket);
}
- }
-
- ap_lock(allowed_globals.jobmutex);
-
- context->lr->count--;
- if (context->lr->count < 2) {
- if (create_and_queue_completion_context(pconf, context->lr) == -1) {
- /* log error and continue */
+ else {
+ /* Prepare the completion context for reuse */
+ if ((rc = reset_acceptex_context(context)) != APR_SUCCESS) {
+ ap_log_error(APLOG_MARK, APLOG_CRIT, rc, server_conf,
+ "Child %d: winnt_get_connection: reset_acceptex_context failed.",
+ my_pid);
+ if (context->accept_socket != INVALID_SOCKET)
+ closesocket(context->accept_socket);
+ CloseHandle(context->Overlapped.hEvent);
+ /* Probably should just die now... */
+ }
}
}
- ap_unlock(allowed_globals.jobmutex);
-
- context->conn_io->incnt = BytesRead;
- GetAcceptExSockaddrs(context->conn_io->inbase,
- context->conn_io->bufsiz - 2*PADDED_ADDR_SIZE,
- PADDED_ADDR_SIZE,
- PADDED_ADDR_SIZE,
- &context->sa_server,
- &context->sa_server_len,
+ /* May need to atomize the workers_may_exit check with the
+ * g_blocked_threads++ */
+ if (workers_may_exit) {
+ return NULL;
+ }
+ g_blocked_threads++;
+
+ while (1) {
+ rc = GetQueuedCompletionStatus(AcceptExCompPort, &BytesRead, &CompKey,
+ &pol, INFINITE);
+ if (!rc) {
+ rc = apr_get_os_error();
+ if (rc != APR_FROM_OS_ERROR(ERROR_OPERATION_ABORTED)) {
+ /* Is this a deadly condition?
+ * We sometimes get ERROR_NETNAME_DELETED when a client
+ * disconnects when attempting to reuse sockets. Not sure why
+ * we see this now and not during AcceptEx(). Reset the
+ * AcceptEx context and continue...
+ */
+ ap_log_error(APLOG_MARK,APLOG_DEBUG, rc, server_conf,
+ "Child %d: - GetQueuedCompletionStatus() failed",
+ my_pid);
+ /* Reset the completion context */
+ if (pol) {
+ context = (PCOMP_CONTEXT) pol;
+ if (context->accept_socket != INVALID_SOCKET)
+ closesocket(context->accept_socket);
+ if ((rc = reset_acceptex_context(context)) != APR_SUCCESS) {
+ ap_log_error(APLOG_MARK, APLOG_CRIT, rc, server_conf,
+ "Child %d: winnt_get_connection: reset_acceptex_context failed.",
+ my_pid);
+ if (context->accept_socket != INVALID_SOCKET)
+ closesocket(context->accept_socket);
+ CloseHandle(context->Overlapped.hEvent);
+ /* Probably should just die now... */
+ }
+ }
+ }
+ else {
+ /* Sometimes we catch ERROR_OPERATION_ABORTED completion packets
+ * from the old child process (during a restart). Ignore them.
+ */
+ ap_log_error(APLOG_MARK,APLOG_DEBUG, rc, server_conf,
+ "Child %d: - Draining ERROR_OPERATION_ABORTED packet off "
+ "the completion port.", my_pid);
+ }
+ continue;
+ }
+
+ if (CompKey != 0) {
+ /* CompKey == my_pid means this thread was unblocked by
+ * the shutdown code (not by io completion).
+ */
+ if (CompKey == my_pid) {
+ g_blocked_threads--;
+ return NULL;
+ }
+ /* Sometimes we catch shutdown io completion packets
+ * posted by the old child process (during a restart). Ignore them.
+ */
+ continue;
+ }
+
+ context = (PCOMP_CONTEXT) pol;
+ break;
+ }
+
+ g_blocked_threads--;
+
+ /* Check to see if we need to create more completion contexts,
+ * but only if we are not in the process of shutting down
+ */
+ if (!shutdown_in_progress) {
+ apr_lock(allowed_globals.jobmutex);
+ context->lr->count--;
+ if (context->lr->count < 2) {
+ SetEvent(maintenance_event);
+ }
+ apr_unlock(allowed_globals.jobmutex);
+ }
+
+ /* Received a connection */
+ GetAcceptExSockaddrs(context->recv_buf,
+ context->recv_buf_size,
+ PADDED_ADDR_SIZE,
+ PADDED_ADDR_SIZE,
+ &context->sa_server,
+ &context->sa_server_len,
&context->sa_client,
&context->sa_client_len);
return context;
-/*
- CloseHandle(context->Overlapped.hEvent);
- SetEvent(exit_event);
- return NULL;
-*/
+
}
/*
- * child_main() - this is the main loop for the worker threads
+ * worker_main() - this is the main loop for the worker threads
*
+ * Windows 95/98
* Each thread runs within this function. They wait within remove_job()
* for a job to become available, then handle all the requests on that
* connection until it is closed, then return to remove_job().
* - block in remove_job, and when unblocked we have an already
* accepted socket, instead of blocking on a mutex or select().
*/
-static void child_main(int child_num)
+
+static void worker_main(int child_num)
{
PCOMP_CONTEXT context = NULL;
-
-// ap_create_context(&(lpCompContext->ptrans), pconf);
-
-#if 0
- (void) ap_update_child_status(child_num, SERVER_READY, (request_rec *) NULL);
-#endif
+ apr_os_sock_info_t sockinfo;
while (1) {
- conn_rec *current_conn;
- ap_iol *iol;
+ conn_rec *c;
+ apr_int32_t disconnected;
/* Grab a connection off the network */
if (osver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) {
-// context = win9x_get_connection(context);
+ context = win9x_get_connection(context);
}
else {
context = winnt_get_connection(context);
if (!context)
break;
+ sock_disable_nagle(context->accept_socket);
-// ap_note_cleanups_for_socket(context->ptrans, context->accept_socket);
+ sockinfo.os_sock = &context->accept_socket;
+ sockinfo.local = context->sa_server;
+ sockinfo.remote = context->sa_client;
+ sockinfo.family = APR_INET;
+ sockinfo.type = SOCK_STREAM;
+ apr_make_os_sock(&context->sock, &sockinfo, context->ptrans);
+ c = ap_new_connection(context->ptrans, server_conf, context->sock,
+ child_num);
-#if 0
- (void) ap_update_child_status(child_num, SERVER_BUSY_READ,
- (request_rec *) NULL);
-#endif
+ ap_process_connection(c);
- sock_disable_nagle(context->accept_socket);
- iol = win32_attach_socket(context->ptrans, context->accept_socket);
- if (iol == NULL) {
- ap_log_error(APLOG_MARK, APLOG_ERR, APR_ENOMEM, server_conf,
- "error attaching to socket");
- closesocket(context->accept_socket);
- continue;
+ apr_getsocketopt(context->sock, APR_SO_DISCONNECTED, &disconnected);
+ if (!disconnected) {
+ context->accept_socket = INVALID_SOCKET;
+ ap_lingering_close(c);
}
+ }
- ap_bpush_iol(context->conn_io, iol);
-
- current_conn = ap_new_connection(context->ptrans, server_conf, context->conn_io,
- (struct sockaddr_in *) &context->sa_client,
- (struct sockaddr_in *) &context->sa_server,
- child_num);
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, APR_SUCCESS, server_conf,
+ "Child %d: Thread exiting.", my_pid);
+#if 0
- ap_process_connection(current_conn);
- }
+ SetEvent(exit_event);
+#endif
/* TODO: Add code to clean-up completion contexts here */
}
-static void cleanup_thread(thread **handles, int *thread_cnt, int thread_to_clean)
+static void cleanup_thread(thread *handles, int *thread_cnt, int thread_to_clean)
{
int i;
- free_thread(handles[thread_to_clean]);
+ CloseHandle(handles[thread_to_clean]);
for (i = thread_to_clean; i < ((*thread_cnt) - 1); i++)
handles[i] = handles[i + 1];
(*thread_cnt)--;
}
-/*
- * The Win32 call WaitForMultipleObjects will only allow you to wait for
- * a maximum of MAXIMUM_WAIT_OBJECTS (current 64). Since the threading
- * model in the multithreaded version of apache wants to use this call,
- * we are restricted to a maximum of 64 threads. This is a simplistic
- * routine that will increase this size.
- */
-static DWORD wait_for_many_objects(DWORD nCount, CONST HANDLE *lpHandles,
- DWORD dwSeconds)
+static void create_listeners()
{
- time_t tStopTime;
- DWORD dwRet = WAIT_TIMEOUT;
- DWORD dwIndex=0;
- BOOL bFirst = TRUE;
-
- tStopTime = time(NULL) + dwSeconds;
-
- do {
- if (!bFirst)
- Sleep(1000);
- else
- bFirst = FALSE;
-
- for (dwIndex = 0; dwIndex * MAXIMUM_WAIT_OBJECTS < nCount; dwIndex++) {
- dwRet = WaitForMultipleObjects(
- min(MAXIMUM_WAIT_OBJECTS,
- nCount - (dwIndex * MAXIMUM_WAIT_OBJECTS)),
- lpHandles + (dwIndex * MAXIMUM_WAIT_OBJECTS),
- 0, 0);
-
- if (dwRet != WAIT_TIMEOUT) {
- break;
+#define NUM_LISTENERS 5
+ ap_listen_rec *lr;
+ for (lr = ap_listeners; lr != NULL; lr = lr->next) {
+ while (lr->count < NUM_LISTENERS) {
+ if (create_acceptex_context(pconf, lr) == -1) {
+ ap_log_error(APLOG_MARK,APLOG_ERR, apr_get_os_error(), server_conf,
+ "Unable to create an AcceptEx completion context -- process will exit");
+ signal_parent(0); /* tell parent to die */
}
}
- } while((time(NULL) < tStopTime) && (dwRet == WAIT_TIMEOUT));
-
- return dwRet;
-}
-
-
-/*
- * 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];
-static void setup_signal_names(char *prefix)
-{
- ap_snprintf(signal_name_prefix, sizeof(signal_name_prefix), prefix);
- ap_snprintf(signal_shutdown_name, sizeof(signal_shutdown_name),
- "%s_shutdown", signal_name_prefix);
- ap_snprintf(signal_restart_name, sizeof(signal_restart_name),
- "%s_restart", signal_name_prefix);
+ }
}
-
/*
- * worker_main() is main loop for the child process. The loop in
- * this function becomes the controlling thread for the actually working
- * threads (which run in a loop in child_sub_main()).
- * Globals Used:
- * exit_event, start_mutex, ap_threads_per_child, server_conf,
- * h_errno defined to WSAGetLastError in winsock2.h,
+ * child_main() runs the main control thread for the child process.
+ *
+ * The control thread:
+ * - sets up the worker thread pool
+ * - starts the accept thread (Win 9x)
+ * - creates AcceptEx contexts (Win NT)
+ * - waits for exit_event, maintenance_event or maintenance timeout
+ * and does the right thing depending on which event is received.
*/
-static void worker_main()
+static void child_main()
{
+ apr_status_t status;
+ HANDLE child_events[2];
+ char* exit_event_name;
int nthreads = ap_threads_per_child;
-
-
- thread **child_handles;
+ int tid;
+ thread *child_handles;
int rv;
- ap_status_t status;
time_t end_time;
int i;
- ap_context_t *pchild;
-
- ap_create_context(&pchild, pconf);
+ int cld;
+ apr_pool_t *pchild;
-// ap_restart_time = time(NULL);
-
-#if 0
- reinit_scoreboard(pconf);
-#endif
- /*
- * Wait until we have permission to start accepting connections.
- * start_mutex is used to ensure that only one child ever
- * goes into the listen/accept loop at once. Also wait on exit_event,
- * in case we (this child) is told to die before we get a chance to
- * serve any requests.
+ /* This is the child process or we are running in single process
+ * mode.
*/
- status = ap_lock(start_mutex);
- if (status != APR_SUCCESS) {
- ap_log_error(APLOG_MARK,APLOG_ERR, status, server_conf,
- "Waiting for start_mutex or exit_event -- process will exit");
+ exit_event_name = apr_psprintf(pconf, "apC%d", my_pid);
+ setup_signal_names(apr_psprintf(pconf,"ap%d", parent_pid));
- ap_destroy_context(pchild); // ap_destroy_pool(pchild):
-#if 0
- cleanup_scoreboard();
-#endif
- exit(0);
- }
-
- /* start_mutex obtained, continue into the select() loop */
if (one_process) {
+ /* Single process mode */
+ apr_create_lock(&start_mutex,APR_MUTEX, APR_CROSS_PROCESS,signal_name_prefix,pconf);
+ exit_event = CreateEvent(NULL, TRUE, FALSE, exit_event_name);
+
setup_listeners(server_conf);
- } else {
- /* Get listeners from the parent process */
+ bind_listeners_to_completion_port();
+ }
+ else {
+ /* Child process mode */
+ apr_child_init_lock(&start_mutex, signal_name_prefix, pconf);
+ exit_event = OpenEvent(EVENT_ALL_ACCESS, FALSE, exit_event_name);
+ ap_log_error(APLOG_MARK, APLOG_INFO, APR_SUCCESS, server_conf,
+ "Child %d: exit_event_name = %s", my_pid, exit_event_name);
+
setup_inherited_listeners(server_conf);
}
- if (listenmaxfd == INVALID_SOCKET) {
- /* Help, no sockets were made, better log something and exit */
- ap_log_error(APLOG_MARK, APLOG_CRIT, h_errno, NULL,
- "No sockets were created for listening");
+ /* Initialize the child_events */
+ maintenance_event = CreateEvent(NULL, TRUE, FALSE, NULL);
+ child_events[0] = exit_event;
+ child_events[1] = maintenance_event;
- signal_parent(0); /* tell parent to die */
+ ap_assert(start_mutex);
+ ap_assert(exit_event);
+ ap_assert(maintenance_event);
-// ap_destroy_pool(pchild);
- ap_destroy_context(pchild);
-#if 0
- cleanup_scoreboard();
-#endif
+ apr_create_pool(&pchild, pconf);
+ allowed_globals.jobsemaphore = create_semaphore(0);
+ apr_create_lock(&allowed_globals.jobmutex, APR_MUTEX, APR_INTRAPROCESS, NULL, pchild);
+
+ /*
+ * Wait until we have permission to start accepting connections.
+ * start_mutex is used to ensure that only one child ever
+ * goes into the listen/accept loop at once.
+ */
+ status = apr_lock(start_mutex);
+ if (status != APR_SUCCESS) {
+ ap_log_error(APLOG_MARK,APLOG_ERR, status, server_conf,
+ "Child %d: Failed to acquire the start_mutex. Process will exit.", my_pid);
+ signal_parent(0); /* tell parent to die */
exit(0);
}
+ ap_log_error(APLOG_MARK,APLOG_INFO, APR_SUCCESS, server_conf,
+ "Child %d: Acquired the start mutex.", my_pid);
- allowed_globals.jobsemaphore = create_semaphore(0);
- ap_create_lock(&allowed_globals.jobmutex, APR_MUTEX, APR_INTRAPROCESS, NULL, pchild);
+ /* Create the worker thread pool */
+ ap_log_error(APLOG_MARK,APLOG_INFO, APR_SUCCESS, server_conf,
+ "Child %d: Starting %d worker threads.", my_pid, nthreads);
+ child_handles = (thread) alloca(nthreads * sizeof(int));
+ for (i = 0; i < nthreads; i++) {
+ child_handles[i] = (thread) _beginthreadex(NULL, 0, (LPTHREAD_START_ROUTINE) worker_main,
+ NULL, 0, &tid);
+ }
- /* spawn off accept thread (WIN9x only) */
+ /* Begin accepting connections */
if (osver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) {
- /* spawn off the worker threads */
- child_handles = (thread *) alloca(nthreads * sizeof(int));
- for (i = 0; i < nthreads; i++) {
- child_handles[i] = create_thread((void (*)(void *)) child_main, (void *) i);
- }
-
-// create_thread((void (*)(void *)) accept_and_queue_connections, (void *) NULL);
+ /* Win95/98: Start the accept thread */
+ _beginthreadex(NULL, 0, (LPTHREAD_START_ROUTINE) accept_and_queue_connections,
+ (void *) i, 0, &tid);
+ } else {
+ /* Windows NT/2000: Create AcceptEx completion contexts */
+ create_listeners();
}
- else {
- ap_listen_rec *lr;
- SOCKET nsd;
- /* Create the AcceptEx completion port */
- AcceptExCompPort = CreateIoCompletionPort(INVALID_HANDLE_VALUE,
- NULL,
- 0,
- 0); /* CONCURRENT ACTIVE THREADS */
- /* Associate each listener with the completion port */
- for (lr = ap_listeners; lr != NULL; lr = lr->next) {
- ap_get_os_sock(&nsd, lr->sd);
- CreateIoCompletionPort((HANDLE) nsd, //(HANDLE)lr->fd,
- AcceptExCompPort,
- 0,
- 0);
+ /* Wait for one of three events:
+ * exit_event:
+ * The exit_event is signaled by the parent process to notify
+ * the child that it is time to exit.
+ *
+ * maintenance_event:
+ * This event is signaled by the worker thread pool to direct
+ * this thread to create more completion contexts.
+ *
+ * TIMEOUT:
+ * To do periodic maintenance on the server (check for thread exits,
+ * number of completion contexts, etc.)
+ */
+ while (1) {
+ rv = WaitForMultipleObjects(2, (HANDLE *) child_events, 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(), server_conf,
+ "Child %d: WAIT_FAILED -- shutting down server");
+ break;
}
-
- /* spawn off the worker threads */
- child_handles = (thread *) alloca(nthreads * sizeof(int));
- for (i = 0; i < nthreads; i++) {
- child_handles[i] = create_thread((void (*)(void *)) child_main, (void *) i);
+ else if (rv == WAIT_TIMEOUT) {
+ /* Hey, this cannot happen */
+ ap_log_error(APLOG_MARK, APLOG_CRIT, APR_SUCCESS, server_conf,
+ "Child %d: WAIT_TIMEOUT -- shutting down server", my_pid);
+ break;
}
-
- /* Create 3 AcceptEx contexts for each listener then queue them to the
- * AcceptEx completion port.
- */
- for (lr = ap_listeners; lr != NULL; lr = lr->next) {
- for(i=0; i<2; i++) {
- if (create_and_queue_completion_context(pconf, lr) == -1) {
- /* log error and exit */
- }
+ else if (cld == 0) {
+ /* Exit event was signaled */
+ ap_log_error(APLOG_MARK, APLOG_INFO, APR_SUCCESS, server_conf,
+ "Child %d: Exit event signaled. Child process is ending.", my_pid);
+ break;
+ }
+ else {
+ /* Child maintenance event signaled */
+ if (osver.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS) {
+ create_listeners();
}
+ ResetEvent(maintenance_event);
+ ap_log_error(APLOG_MARK, APLOG_INFO, APR_SUCCESS, server_conf,
+ "Child %d: Child maintenance event signaled.", my_pid);
}
}
- rv = WaitForSingleObject(exit_event, INFINITE);
- printf("exit event signalled \n");
- workers_may_exit = 1;
+ /* Setting is_graceful will close keep-alive connections */
+ is_graceful = 1;
- /* Get ready to shutdown and exit */
- ap_unlock(start_mutex);
-
- /* Tell the workers to stop */
+ /* Shutdown the worker threads */
if (osver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) {
+ /* workers_may_exit = 1; Not used on Win9x */
+ shutdown_in_progress = 1;
for (i = 0; i < nthreads; i++) {
-// add_job(-1);
+ add_job(-1);
}
}
- else {
- for (i=0; i < nthreads; i++) {
- PostQueuedCompletionStatus(AcceptExCompPort, 0, 999, NULL);
+ else { /* Windows NT/2000 */
+ SOCKET nsd;
+ ap_listen_rec *lr;
+ /*
+ * Setting shutdown_in_progress prevents new AcceptEx completion
+ * contexts from being queued to the port but allows threads to
+ * continue consuming from the port. This gives the server a
+ * chance to handle any accepted connections.
+ */
+ shutdown_in_progress = 1;
+ Sleep(1000);
+
+ /* Setting workers_may_exit prevents threads from consumimg from the
+ * completion port (especially threads that unblock off of keep-alive
+ * connections later on).
+ */
+ workers_may_exit = 1;
+
+ /* Unblock threads blocked on the completion port */
+ apr_lock(allowed_globals.jobmutex);
+ while (g_blocked_threads > 0) {
+ ap_log_error(APLOG_MARK,APLOG_INFO, APR_SUCCESS, server_conf,
+ "Child %d: %d threads blocked on the completion port", my_pid, g_blocked_threads);
+ for (i=g_blocked_threads; i > 0; i--) {
+ PostQueuedCompletionStatus(AcceptExCompPort, 0, my_pid, NULL);
+ }
+ Sleep(1000);
}
+ apr_unlock(allowed_globals.jobmutex);
+
+ /* Cancel any remaining pending AcceptEx completion contexts */
+ for (lr = ap_listeners; lr != NULL; lr = lr->next) {
+ apr_get_os_sock(&nsd,lr->sd);
+ CancelIo((HANDLE) nsd);
+ }
+
+ /* Drain the canceled contexts off the port */
+ drain_acceptex_complport(AcceptExCompPort, TRUE);
}
- /* Wait for all your children */
+ /* Release the start_mutex to let the new process (in the restart
+ * scenario) a chance to begin servicing requests
+ */
+ ap_log_error(APLOG_MARK,APLOG_INFO, APR_SUCCESS, server_conf,
+ "Child %d: Releasing the start mutex", my_pid);
+ apr_unlock(start_mutex);
+
+ /* Give busy worker threads a chance to service their connections.
+ * Kill them off if they take too long
+ */
+ ap_log_error(APLOG_MARK,APLOG_INFO, APR_SUCCESS, server_conf,
+ "Child %d: Waiting for %d threads to die.", my_pid, nthreads);
end_time = time(NULL) + 180;
while (nthreads) {
- rv = wait_for_many_objects(nthreads, child_handles,
- end_time - time(NULL));
+ rv = wait_for_many_objects(nthreads, child_handles, end_time - time(NULL));
if (rv != WAIT_TIMEOUT) {
rv = rv - WAIT_OBJECT_0;
ap_assert((rv >= 0) && (rv < nthreads));
cleanup_thread(child_handles, &nthreads, rv);
- continue;
- }
- break;
+ continue;
+ }
+ break;
}
-
for (i = 0; i < nthreads; i++) {
- kill_thread(child_handles[i]);
- free_thread(child_handles[i]);
+ TerminateThread(child_handles[i], 1);
+ CloseHandle(child_handles[i]);
}
+ ap_log_error(APLOG_MARK,APLOG_INFO, APR_SUCCESS, server_conf,
+ "Child %d: All worker threads have ended.", my_pid);
+ CloseHandle(AcceptExCompPort);
destroy_semaphore(allowed_globals.jobsemaphore);
- ap_destroy_lock(allowed_globals.jobmutex);
-
- ap_destroy_context(pchild);
+ apr_destroy_lock(allowed_globals.jobmutex);
-#if 0
- cleanup_scoreboard();
-#endif
-}
-static HANDLE create_exit_event(const char* event_name)
-{
- return CreateEvent(NULL, TRUE, FALSE, event_name);
+ apr_destroy_pool(pchild);
+ CloseHandle(exit_event);
}
+
/*
* Spawn a child Apache process. The child process has the command line arguments from
* argc and argv[], plus a -Z argument giving the name of an event. The child should
(*processes)--;
}
-static int create_process(ap_context_t *p, HANDLE *handles, HANDLE *events, int *processes)
+static int create_process(apr_pool_t *p, HANDLE *handles, HANDLE *events, int *processes)
{
int rv;
char buf[1024];
char *pCommand;
-
+ char *pEnvVar;
+ char *pEnvBlock;
+ int i;
+ int iEnvBlockLen;
STARTUPINFO si; /* Filled in prior to call to CreateProcess */
- PROCESS_INFORMATION pi; /* filled in on call to CreateProces */
+ PROCESS_INFORMATION pi; /* filled in on call to CreateProcess */
ap_listen_rec *lr;
DWORD BytesWritten;
HANDLE hPipeWrite = NULL;
SECURITY_ATTRIBUTES sa = {0};
+ HANDLE kill_event;
+ LPWSAPROTOCOL_INFO lpWSAProtocolInfo;
+ HANDLE hDupedCompPort;
+
sa.nLength = sizeof(sa);
sa.bInheritHandle = TRUE;
sa.lpSecurityDescriptor = NULL;
"Parent: Path to Apache process too long");
return -1;
} else if (rv == 0) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, GetLastError(), server_conf,
+ ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), server_conf,
"Parent: GetModuleFileName() returned NULL for current process.");
return -1;
}
- // pCommand = ap_psprintf(p, "\"%s\" -f \"%s\"", buf, ap_server_confname);
- pCommand = ap_psprintf(p, "\"%s\" -f \"%s\"", buf, SERVER_CONFIG_FILE);
+ /* Build the command line */
+ pCommand = apr_psprintf(p, "\"%s\"", buf);
+ for (i = 1; i < server_conf->process->argc; i++) {
+ pCommand = apr_pstrcat(p, pCommand, " \"", server_conf->process->argv[i], "\"", NULL);
+ }
+
+ /* Build the environment, since Win9x disrespects the active env */
+ pEnvVar = apr_psprintf(p, "AP_PARENT_PID=%i", parent_pid);
+ /*
+ * Win32's CreateProcess call requires that the environment
+ * be passed in an environment block, a null terminated block of
+ * null terminated strings.
+ */
+ i = 0;
+ iEnvBlockLen = 1;
+ while (_environ[i]) {
+ iEnvBlockLen += strlen(_environ[i]) + 1;
+ i++;
+ }
+
+ pEnvBlock = (char *)apr_pcalloc(p, iEnvBlockLen + strlen(pEnvVar) + 1);
+ strcpy(pEnvBlock, pEnvVar);
+ pEnvVar = strchr(pEnvBlock, '\0') + 1;
+ i = 0;
+ while (_environ[i]) {
+ strcpy(pEnvVar, _environ[i]);
+ pEnvVar = strchr(pEnvVar, '\0') + 1;
+ i++;
+ }
+ pEnvVar = '\0';
/* Create a pipe to send socket info to the child */
if (!CreatePipe(&hPipeRead, &hPipeWrite, &sa, 0)) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, GetLastError(), server_conf,
- "Parent: Unable to create pipe to child process.\n");
+ ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), server_conf,
+ "Parent: Unable to create pipe to child process.");
return -1;
}
- SetEnvironmentVariable("AP_PARENT_PID",ap_psprintf(p,"%d",parent_pid));
-
- /* Give the read in of the pipe (hPipeRead) to the child as stdin. The
+ /* Give the read end of the pipe (hPipeRead) to the child as stdin. The
* parent will write the socket data to the child on this pipe.
*/
memset(&si, 0, sizeof(si));
if (!CreateProcess(NULL, pCommand, NULL, NULL,
TRUE, /* Inherit handles */
CREATE_SUSPENDED, /* Creation flags */
- NULL, /* Environment block */
+ pEnvBlock, /* Environment block */
NULL,
&si, &pi)) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, GetLastError(), server_conf,
+ ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), server_conf,
"Parent: Not able to create the child process.");
/*
* We must close the handles to the new process and its main thread
CloseHandle(pi.hThread);
return -1;
}
- else {
- HANDLE kill_event;
- LPWSAPROTOCOL_INFO lpWSAProtocolInfo;
+
+ ap_log_error(APLOG_MARK, APLOG_INFO, APR_SUCCESS, server_conf,
+ "Parent: Created child process %d", pi.dwProcessId);
+
+ SetEnvironmentVariable("AP_PARENT_PID",NULL);
+ /* Create the exit_event, apCchild_pid */
+ sa.nLength = sizeof(sa);
+ sa.bInheritHandle = TRUE;
+ sa.lpSecurityDescriptor = NULL;
+ kill_event = CreateEvent(&sa, TRUE, FALSE, apr_psprintf(pconf,"apC%d", pi.dwProcessId));
+ if (!kill_event) {
+ ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), server_conf,
+ "Parent: Could not create exit event for child process");
+ CloseHandle(pi.hProcess);
+ CloseHandle(pi.hThread);
+ return -1;
+ }
+
+ /* Assume the child process lives. Update the process and event tables */
+ handles[*processes] = pi.hProcess;
+ events[*processes] = kill_event;
+ (*processes)++;
+
+ /* We never store the thread's handle, so close it now. */
+ ResumeThread(pi.hThread);
+ CloseHandle(pi.hThread);
+
+ /* 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) {
+ int nsd;
+ lpWSAProtocolInfo = apr_pcalloc(p, sizeof(WSAPROTOCOL_INFO));
+ apr_get_os_sock(&nsd,lr->sd);
ap_log_error(APLOG_MARK, APLOG_INFO, APR_SUCCESS, server_conf,
- "Parent: Created child process %d", pi.dwProcessId);
-
- SetEnvironmentVariable("AP_PARENT_PID",NULL);
-
- /* Create the exit_event, apCHILD_PID */
- kill_event = create_exit_event(ap_psprintf(pconf,"apC%d", pi.dwProcessId));
-//CreateEvent(NULL, TRUE, TRUE, ap_psprintf(pconf,"apC%d", pi.dwProcessId)); // exit_event_name...
- if (!kill_event) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, GetLastError(), server_conf,
- "Parent: Could not create exit event for child process");
- CloseHandle(pi.hProcess);
- CloseHandle(pi.hThread);
+ "Parent: Duplicating socket %d and sending it to child process %d", nsd, pi.dwProcessId);
+ if (WSADuplicateSocket(nsd, pi.dwProcessId,
+ lpWSAProtocolInfo) == SOCKET_ERROR) {
+ ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_netos_error(), server_conf,
+ "Parent: WSADuplicateSocket failed for socket %d.", lr->sd );
return -1;
}
-
- /* Assume the child process lives. Update the process and event tables */
- handles[*processes] = pi.hProcess;
- events[*processes] = kill_event;
- (*processes)++;
- /* We never store the thread's handle, so close it now. */
- ResumeThread(pi.hThread);
- CloseHandle(pi.hThread);
-
- /* 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) {
- int nsd;
- lpWSAProtocolInfo = ap_pcalloc(p, sizeof(WSAPROTOCOL_INFO));
- ap_log_error(APLOG_MARK, APLOG_NOERRNO | APLOG_INFO, APR_SUCCESS, server_conf,
- "Parent: Duplicating socket %d and sending it to child process %d", lr->sd, pi.dwProcessId);
- ap_get_os_sock(&nsd,lr->sd);
- if (WSADuplicateSocket(nsd,
- pi.dwProcessId,
- lpWSAProtocolInfo) == SOCKET_ERROR) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, h_errno, server_conf,
- "Parent: WSADuplicateSocket failed for socket %d.", lr->sd );
- return -1;
- }
-
- if (!WriteFile(hPipeWrite, lpWSAProtocolInfo, (DWORD) sizeof(WSAPROTOCOL_INFO),
- &BytesWritten,
- (LPOVERLAPPED) NULL)) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, GetLastError(), server_conf,
- "Parent: Unable to write duplicated socket %d to the child.", lr->sd );
- return -1;
- }
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, APR_SUCCESS, server_conf,
- "BytesWritten = %d WSAProtocolInfo = %x20", BytesWritten, *lpWSAProtocolInfo);
+ if (!WriteFile(hPipeWrite, lpWSAProtocolInfo, (DWORD) sizeof(WSAPROTOCOL_INFO),
+ &BytesWritten,
+ (LPOVERLAPPED) NULL)) {
+ ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), server_conf,
+ "Parent: Unable to write duplicated socket %d to the child.", lr->sd );
+ return -1;
}
+ ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_DEBUG, APR_SUCCESS, server_conf,
+ "Parent: BytesWritten = %d WSAProtocolInfo = %x20", BytesWritten, *lpWSAProtocolInfo);
}
+ if (osver.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS) {
+ /* Now, send the AcceptEx completion port to the child */
+ if (!DuplicateHandle(GetCurrentProcess(), AcceptExCompPort,
+ pi.hProcess, &hDupedCompPort, 0,
+ TRUE, DUPLICATE_SAME_ACCESS)) {
+ ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), server_conf,
+ "Parent: Unable to duplicate AcceptEx completion port. Shutting down.");
+ return -1;
+ }
+
+ WriteFile(hPipeWrite, &hDupedCompPort, (DWORD) sizeof(hDupedCompPort), &BytesWritten, (LPOVERLAPPED) NULL);
+ }
+
CloseHandle(hPipeRead);
CloseHandle(hPipeWrite);
return 0;
}
-/* To share the semaphores with other processes, we need a NULL ACL
- * Code from MS KB Q106387
- */
-static PSECURITY_ATTRIBUTES GetNullACL()
-{
- PSECURITY_DESCRIPTOR pSD;
- PSECURITY_ATTRIBUTES sa;
-
- sa = (PSECURITY_ATTRIBUTES) LocalAlloc(LPTR, sizeof(SECURITY_ATTRIBUTES));
- pSD = (PSECURITY_DESCRIPTOR) LocalAlloc(LPTR,
- SECURITY_DESCRIPTOR_MIN_LENGTH);
- if (pSD == NULL || sa == NULL) {
- return NULL;
- }
- if (!InitializeSecurityDescriptor(pSD, SECURITY_DESCRIPTOR_REVISION)
- || GetLastError()) {
- LocalFree( pSD );
- LocalFree( sa );
- return NULL;
- }
- if (!SetSecurityDescriptorDacl(pSD, TRUE, (PACL) NULL, FALSE)
- || GetLastError()) {
- LocalFree( pSD );
- LocalFree( sa );
- return NULL;
- }
- sa->nLength = sizeof(sa);
- sa->lpSecurityDescriptor = pSD;
- sa->bInheritHandle = TRUE;
- return sa;
-}
-
-
-static void CleanNullACL( void *sa ) {
- if( sa ) {
- LocalFree( ((PSECURITY_ATTRIBUTES)sa)->lpSecurityDescriptor);
- LocalFree( sa );
- }
-}
-
static int master_main(server_rec *s, HANDLE shutdown_event, HANDLE restart_event)
{
int remaining_children_to_start = ap_daemons_to_start;
HANDLE process_kill_events[MAX_PROCESSES];
setup_listeners(s);
+ bind_listeners_to_completion_port();
/* Create child process
* Should only be one in this version of Apache for WIN32
while (remaining_children_to_start--) {
if (create_process(pconf, process_handles, process_kill_events,
¤t_live_processes) < 0) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, GetLastError(), server_conf,
+ ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), server_conf,
"master_main: create child process failed. Exiting.");
shutdown_pending = 1;
goto die_now;
}
}
-
- /* service_set_status(SERVICE_RUNNING);*/
- restart_pending = shutdown_pending = 0;
+ restart_pending = shutdown_pending = 0;
+
+ if (!strcasecmp(signal_arg, "runservice"))
+ mpm_service_started();
+
/* Wait for shutdown or restart events or for child death */
process_handles[current_live_processes] = shutdown_event;
process_handles[current_live_processes+1] = restart_event;
+
rv = WaitForMultipleObjects(current_live_processes+2, (HANDLE *)process_handles,
FALSE, INFINITE);
cld = rv - WAIT_OBJECT_0;
if (rv == WAIT_FAILED) {
/* Something serious is wrong */
- ap_log_error(APLOG_MARK,APLOG_CRIT, GetLastError(), server_conf,
- "master_main: : WaitForMultipeObjects on process handles and apache-signal -- doing shutdown");
+ ap_log_error(APLOG_MARK,APLOG_CRIT, apr_get_os_error(), 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, GetLastError(), s,
+ 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 == current_live_processes) {
/* shutdown_event signalled */
shutdown_pending = 1;
+ printf("shutdown event signaled\n");
ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, APR_SUCCESS, s,
- "master_main: Shutdown event signaled. Shutting the server down.");
+ "Parent: SHUTDOWN EVENT SIGNALED -- Shutting down the server.");
if (ResetEvent(shutdown_event) == 0) {
- ap_log_error(APLOG_MARK, APLOG_ERR, GetLastError(), s,
+ ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_os_error(), s,
"ResetEvent(shutdown_event)");
}
/* restart_event signalled */
int children_to_kill = current_live_processes;
restart_pending = 1;
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, APR_SUCCESS, s,
- "master_main: Restart event signaled. Doing a graceful restart.");
+ ap_log_error(APLOG_MARK, APLOG_INFO, APR_SUCCESS, s,
+ "Parent: RESTART EVENT SIGNALED -- Restarting the server.");
if (ResetEvent(restart_event) == 0) {
- ap_log_error(APLOG_MARK, APLOG_ERR, GetLastError(), s,
+ ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_os_error(), s,
"master_main: ResetEvent(restart_event) failed.");
}
/* Signal each child process to die
* We are making a big assumption here that the child process, once signaled,
* will REALLY go away. Since this is a restart, we do not want to hold the
* new child process up waiting for the old child to die. Remove the old
- * child out of the process_handles ap_table_t and hope for the best...
+ * child out of the process_handles apr_table_t and hope for the best...
*/
for (i = 0; i < children_to_kill; i++) {
- /* APD3("master_main: signalling child #%d handle %d to die", i, process_handles[i]); */
if (SetEvent(process_kill_events[i]) == 0)
- ap_log_error(APLOG_MARK, APLOG_ERR, GetLastError(), s,
+ ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_os_error(), s,
"master_main: SetEvent for child process in slot #%d failed", i);
cleanup_process(process_handles, process_kill_events, i, ¤t_live_processes);
}
}
else {
- /* A child process must have exited because of MaxRequestPerChild being hit
- * or a fatal error condition (seg fault, etc.). Remove the dead process
- * from the process_handles and process_kill_events ap_table_t and create a new
+ /* A child process must have exited because of a fatal error condition (seg fault, etc.).
+ * Remove the dead process
+ * from the process_handles and process_kill_events apr_table_t and create a new
* child process.
* TODO: Consider restarting the child immediately without looping through http_main
* and without rereading the configuration. Will need this if we ever support multiple
* children. One option, create a parent thread which waits on child death and restarts it.
+ * Consider, however, that if the user makes httpd.conf invalid, we want to die before
+ * our child tries it... otherwise we have a nasty loop.
*/
restart_pending = 1;
ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, APR_SUCCESS, server_conf,
- "master_main: Child processed exited (due to MaxRequestsPerChild?). Restarting the child process.");
+ "Parent: CHILD PROCESS FAILED -- Restarting the child process.");
ap_assert(cld < current_live_processes);
cleanup_process(process_handles, process_kill_events, cld, ¤t_live_processes);
/* APD2("main_process: child in slot %d died", rv); */
/* restart_child(process_hancles, process_kill_events, cld, ¤t_live_processes); */
+
+ /* Drain the AcceptEx completion port of any outstanding I/O pending for the dead
+ * process. */
+ drain_acceptex_complport(AcceptExCompPort, FALSE);
}
die_now:
- if (shutdown_pending) {
+ if (shutdown_pending)
+ {
int tmstart = time(NULL);
+
+ if (strcasecmp(signal_arg, "runservice")) {
+ mpm_service_stopping();
+ }
/* Signal each child processes to die */
for (i = 0; i < current_live_processes; i++) {
+ printf("SetEvent handle = %d\n", process_kill_events[i]);
if (SetEvent(process_kill_events[i]) == 0)
- ap_log_error(APLOG_MARK,APLOG_ERR, GetLastError(), server_conf,
+ ap_log_error(APLOG_MARK,APLOG_ERR, apr_get_os_error(), server_conf,
"master_main: SetEvent for child process in slot #%d failed", i);
}
}
for (i = 0; i < current_live_processes; i++) {
ap_log_error(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO, APR_SUCCESS, server_conf,
- "forcing termination of child #%d (handle %d)", i, process_handles[i]);
+ "Parent: Forcing termination of child #%d (handle %d)", i, process_handles[i]);
TerminateProcess((HANDLE) process_handles[i], 1);
}
- return (0); /* Tell the caller we are shutting down */
+ return 0; /* Tell the caller we do not want to restart */
}
- return (1); /* Tell the caller we want a restart */
+ return 1; /* Tell the caller we want a restart */
}
-/*
- * winnt_pre_config()
+
+#define SERVICE_UNNAMED (-1)
+
+/* 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 void winnt_pre_config(ap_context_t *pconf, ap_context_t *plog, ap_context_t *ptemp)
+
+static apr_status_t service_to_start_success;
+static int inst_argc;
+static const char * const *inst_argv;
+
+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]
+ *
+ * We can't leave this phase until we know our identity
+ * and modify the command arguments appropriately.
+ */
+ apr_status_t service_named = SERVICE_UNNAMED;
+ apr_status_t rv;
+ char *def_server_root;
+ char fnbuf[MAX_PATH];
+ char optbuf[3];
+ const char *optarg;
+ int fixed_args;
char *pid;
- one_process=1;//!!getenv("ONE_PROCESS");
+ apr_getopt_t *opt;
+ int running_as_service = 1;
osver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&osver);
/* AP_PARENT_PID is only valid in the child */
pid = getenv("AP_PARENT_PID");
- if (pid) {
+ if (pid)
+ {
/* This is the child */
- parent_pid = atoi(pid);
- my_pid = getpid();
+ my_pid = GetCurrentProcessId();
+ parent_pid = (DWORD) atol(pid);
+
+ /* 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;
}
- else {
- /* This is the parent */
- parent_pid = my_pid = getpid();
- ap_log_pid(pconf, mpm_pid_fname);
+
+ /* This is the parent, we have a long way to go :-) */
+ parent_pid = my_pid = GetCurrentProcessId();
+
+ /* Rewrite process->argv[];
+ *
+ * strip out -k signal into signal_arg
+ * strip out -n servicename into service_name & display_name
+ * 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 (!GetModuleFileName(NULL, fnbuf, sizeof(fnbuf))) {
+ rv = apr_get_os_error();
+ ap_log_error(APLOG_MARK,APLOG_ERR, rv, NULL,
+ "Failed to get the path of Apache.exe");
+ exit(1);
}
+ /* WARNING: There is an implict assumption here that the
+ * executable resides in ServerRoot or ServerRoot\bin
+ */
+ def_server_root = (char *) apr_filename_of_pathname(fnbuf);
+ if (def_server_root > fnbuf) {
+ *(def_server_root - 1) = '\0';
+ def_server_root = (char *) apr_filename_of_pathname(fnbuf);
+ if (!strcasecmp(def_server_root, "bin"))
+ *(def_server_root - 1) = '\0';
+ }
+ def_server_root = ap_os_canonical_filename(process->pool, fnbuf);
- ap_listen_pre_config();
- ap_daemons_to_start = DEFAULT_NUM_DAEMON;
- ap_threads_per_child = DEFAULT_START_THREAD;
- mpm_pid_fname = DEFAULT_PIDLOG;
- max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD;
+ /* 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_make_array(process->pool, process->argc + 2,
+ sizeof(const char *));
+ *(const char **)apr_push_array(mpm_new_argv) = process->argv[0];
+ *(const char **)apr_push_array(mpm_new_argv) = "-d";
+ *(const char **)apr_push_array(mpm_new_argv) = def_server_root;
+
+ fixed_args = mpm_new_argv->nelts;
+
+ optbuf[0] = '-';
+ optbuf[2] = '\0';
+ apr_initopt(&opt, process->pool, process->argc, (char**) process->argv);
+ while (apr_getopt(opt, "n:k:iu" AP_SERVER_BASEARGS,
+ optbuf + 1, &optarg) == APR_SUCCESS) {
+ switch (optbuf[1]) {
+ case 'n':
+ service_named = mpm_service_set_name(process->pool, optarg);
+ break;
+ case 'k':
+ signal_arg = optarg;
+ break;
+ case 'i':
+ ap_log_error(APLOG_MARK,APLOG_WARNING, 0, NULL,
+ "-i is deprecated. Use -k install.");
+ signal_arg = "install";
+ break;
+ case 'u':
+ ap_log_error(APLOG_MARK,APLOG_WARNING, 0, NULL,
+ "-u is deprecated. Use -k uninstall.");
+ signal_arg = "uninstall";
+ break;
+ default:
+ *(const char **)apr_push_array(mpm_new_argv) =
+ apr_pstrdup(process->pool, optbuf);
+
+ if (optarg) {
+ *(const char **)apr_push_array(mpm_new_argv) = optarg;
+ }
+ break;
+ }
+ }
+
+ /* Track the number of args actually entered by the user */
+ inst_argc = mpm_new_argv->nelts - fixed_args;
- ap_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir));
+ /* 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.
+ *
+ * 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) {
+ service_to_start_success = mpm_service_to_start();
+ if (service_to_start_success == APR_SUCCESS)
+ service_named = APR_SUCCESS;
+ }
+ }
-static void winnt_post_config(ap_context_t *pconf, ap_context_t *plog, ap_context_t *ptemp, server_rec* server_conf)
-{
- server_conf = server_conf;
+ if (service_named == SERVICE_UNNAMED && running_as_service) {
+ service_named = mpm_service_set_name(process->pool,
+ DEFAULT_SERVICE_NAME);
+ }
+
+ if (!strcasecmp(signal_arg, "install")) /* -k install */
+ {
+ if (service_named == APR_SUCCESS)
+ {
+ ap_log_error(APLOG_MARK,APLOG_ERR, 0, NULL,
+ "%s: Service is already installed.", display_name);
+ exit(1);
+ }
+ }
+ else if (running_as_service)
+ {
+ if (service_named == APR_SUCCESS)
+ {
+ rv = mpm_merge_service_args(process->pool, mpm_new_argv,
+ fixed_args);
+ if (rv == APR_SUCCESS) {
+ ap_log_error(APLOG_MARK,APLOG_NOERRNO|APLOG_INFO, 0, NULL,
+ "Using ConfigArgs of the installed service "
+ "\"%s\".", display_name);
+ }
+ else {
+ ap_log_error(APLOG_MARK,APLOG_INFO, rv, NULL,
+ "No installed ConfigArgs for the service "
+ "\"%s\", using Apache defaults.", display_name);
+ }
+ }
+ else
+ {
+ ap_log_error(APLOG_MARK,APLOG_INFO|APLOG_NOERRNO, 0, NULL,
+ "No installed service named \"%s\".", display_name);
+ exit(1);
+ }
+ }
+
+ /* 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;
}
-API_EXPORT(int) ap_mpm_run(ap_context_t *_pconf, ap_context_t *plog, server_rec *s )
+
+static void 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]
+ * -k uninstall
+ * -k stop
+ *
+ * in these cases we -don't- care if httpd.conf has config errors!
+ */
+ apr_status_t rv;
- char* exit_event_name;
+ if (ap_exists_config_define("ONE_PROCESS"))
+ one_process = -1;
-// time_t tmstart;
- HANDLE shutdown_event; /* used to signal shutdown to parent */
- HANDLE restart_event; /* used to signal a restart to parent */
+ if (ap_exists_config_define("ONE_PROCESS"))
+ one_process = -1;
- pconf = _pconf;
- server_conf = s;
+ if (!strcasecmp(signal_arg, "runservice")
+ && (osver.dwPlatformId == VER_PLATFORM_WIN32_NT)
+ && (service_to_start_success != APR_SUCCESS)) {
+ ap_log_error(APLOG_MARK,APLOG_ERR, service_to_start_success, NULL,
+ "%s: Unable to start the service manager.",
+ display_name);
+ exit(1);
+ }
- if ((parent_pid != my_pid) || one_process) {
- /* Child process */
- AMCSocketInitialize();
- exit_event_name = ap_psprintf(pconf, "apC%d", my_pid);
- setup_signal_names(ap_psprintf(pconf,"ap%d", parent_pid));
- if (one_process) {
- ap_create_lock(&start_mutex,APR_MUTEX, APR_CROSS_PROCESS,signal_name_prefix,pconf);
- exit_event = create_exit_event(exit_event_name);
- }
- else {
- ap_child_init_lock(&start_mutex, signal_name_prefix, pconf);
- exit_event = open_event(exit_event_name);
- }
- ap_assert(start_mutex);
- ap_assert(exit_event);
+ if (!strcasecmp(signal_arg, "uninstall")) {
+ rv = mpm_service_uninstall();
+ exit(rv);
+ }
+
+ if (!strcasecmp(signal_arg, "stop")) {
+ mpm_signal_service(ptemp, 0);
+ exit(0);
+ }
+
+ ap_listen_pre_config();
+ ap_daemons_to_start = DEFAULT_NUM_DAEMON;
+ ap_threads_per_child = DEFAULT_START_THREAD;
+ ap_pid_fname = DEFAULT_PIDLOG;
+ max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD;
- worker_main();
+ apr_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir));
+}
+
+static void winnt_post_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec* server)
+{
+ static int restart_num = 0;
+ apr_status_t rv = 0;
- destroy_event(exit_event);
- AMCSocketCleanup();
+ server_conf = server;
+
+ /* Handle the following SCM aspects in this phase:
+ *
+ * -k install
+ * -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);
+ exit (rv);
}
- else {
- /* Parent process */
- static int restart = 0;
- PSECURITY_ATTRIBUTES sa = GetNullACL(); /* returns NULL if invalid (Win95?) */
- ap_clear_pool(plog);
- ap_open_logs(server_conf, plog);
+ if (!strcasecmp(signal_arg, "start")) {
+ rv = mpm_service_start(ptemp, inst_argc, inst_argv);
+ exit (rv);
+ }
- if (!restart) {
- /* service_set_status(SERVICE_START_PENDING);*/
- AMCSocketInitialize();
- setup_signal_names(ap_psprintf(pconf,"ap%d", parent_pid));
-
+ if (!strcasecmp(signal_arg, "restart")) {
+ mpm_signal_service(ptemp, 1);
+ 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));
+ if (osver.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS) {
+ /* Create the AcceptEx IoCompletionPort once in the parent.
+ * The completion port persists across restarts.
+ */
+ AcceptExCompPort = CreateIoCompletionPort(INVALID_HANDLE_VALUE,
+ NULL,
+ 0,
+ 0); /* CONCURRENT ACTIVE THREADS */
+ if (AcceptExCompPort == NULL) {
+ ap_log_error(APLOG_MARK,APLOG_ERR, apr_get_os_error(), server_conf,
+ "Parent: Unable to create the AcceptExCompletionPort -- process will exit");
+ exit(1);
+ }
+ }
+
+ 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, TRUE, FALSE, signal_shutdown_name);
+ shutdown_event = CreateEvent(sa, FALSE, FALSE, signal_shutdown_name);
if (!shutdown_event) {
- ap_log_error(APLOG_MARK, APLOG_EMERG, GetLastError(), s,
- "master_main: Cannot create shutdown event %s", signal_shutdown_name);
+ ap_log_error(APLOG_MARK, APLOG_EMERG, apr_get_os_error(), server_conf,
+ "Parent: Cannot create shutdown event %s", signal_shutdown_name);
CleanNullACL((void *)sa);
exit(1);
}
/* Create restart event, apPID_restart, where PID is the parent
* Apache process ID. Restart is signaled by 'apache -k restart'.
*/
- restart_event = CreateEvent(sa, TRUE, FALSE, signal_restart_name);
+ restart_event = CreateEvent(sa, FALSE, FALSE, signal_restart_name);
if (!restart_event) {
CloseHandle(shutdown_event);
- ap_log_error(APLOG_MARK, APLOG_EMERG, GetLastError(), s,
- "master_main: Cannot create restart event %s", signal_restart_name);
+ ap_log_error(APLOG_MARK, APLOG_EMERG, apr_get_os_error(), server_conf,
+ "Parent: Cannot create restart event %s", signal_restart_name);
CleanNullACL((void *)sa);
exit(1);
}
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();
+ if (rv != APR_SUCCESS) {
+ ap_log_error(APLOG_MARK,APLOG_ERR, rv, server_conf,
+ "%s: Unable to start the service manager.",
+ display_name);
+ exit(1);
+ }
+ }
+ }
+ else /* ! -k runservice */
+ {
+ mpm_start_console_handler();
+ }
+
/* Create the start mutex, apPID, where PID is the parent Apache process ID.
* Ths start mutex is used during a restart to prevent more than one
* child process from entering the accept loop at once.
*/
- ap_create_lock(&start_mutex,APR_MUTEX, APR_CROSS_PROCESS,signal_name_prefix,pconf);
- /* TODO: Add some code to detect failure */
+ apr_create_lock(&start_mutex,APR_MUTEX, APR_CROSS_PROCESS, signal_name_prefix,
+ server_conf->process->pool);
}
+ }
+ else /* parent_pid != my_pid */
+ {
+ mpm_start_child_console_handler();
+ }
+}
+
+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" */
+
+ pconf = _pconf;
+ server_conf = s;
+
+ if ((parent_pid != my_pid) || one_process) {
+ /* Running as Child process or in one_process (debug) mode */
+ ap_log_error(APLOG_MARK, APLOG_INFO, APR_SUCCESS, server_conf,
+ "Child %d: Child process is running", my_pid);
+ child_main();
+ ap_log_error(APLOG_MARK, APLOG_INFO, APR_SUCCESS, server_conf,
+ "Child %d: Child process is exiting", my_pid);
- /* Go to work... */
+ return 1;
+ } /* Child or single process */
+ else { /* Parent process */
restart = master_main(server_conf, shutdown_event, restart_event);
if (!restart) {
- const char *pidfile = NULL;
/* Shutting down. Clean up... */
- pidfile = ap_server_root_relative (pconf, mpm_pid_fname);
- if ( pidfile != NULL && unlink(pidfile) == 0)
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO,APR_SUCCESS,
- server_conf,
- "removed PID file %s (pid=%ld)",
- pidfile, (long)getpid());
- ap_destroy_lock(start_mutex);
+ const char *pidfile = ap_server_root_relative (pconf, ap_pid_fname);
+
+ if (pidfile != NULL && unlink(pidfile) == 0) {
+ ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, APR_SUCCESS,
+ server_conf, "removed PID file %s (pid=%ld)",
+ pidfile, GetCurrentProcessId());
+ }
+ apr_destroy_lock(start_mutex);
CloseHandle(restart_event);
CloseHandle(shutdown_event);
- AMCSocketCleanup();
- /* service_set_status(SERVICE_STOPPED); */
+
+ return 1;
}
- return !restart;
- }
- return (0);
+ } /* Parent process */
+
+ return 0; /* Restart */
}
static void winnt_hooks(void)
{
-// INIT_SIGLIST()
- one_process = 0;
- /* Configuration hooks implemented by http_config.c ... */
- ap_hook_pre_config(winnt_pre_config, NULL, NULL, HOOK_MIDDLE);
+ ap_hook_pre_config(winnt_pre_config, NULL, NULL, AP_HOOK_MIDDLE);
+ ap_hook_post_config(winnt_post_config, NULL, NULL, 0);
}
/*
if (cmd->server->is_virtual) {
return "PidFile directive not allowed in <VirtualHost>";
}
- mpm_pid_fname = arg;
+ ap_pid_fname = arg;
return NULL;
}
ap_threads_per_child = atoi(arg);
if (ap_threads_per_child > HARD_THREAD_LIMIT) {
- fprintf(stderr, "WARNING: ThreadsPerChild of %d exceeds compile time"
- " limit of %d threads,\n", ap_threads_per_child,
- HARD_THREAD_LIMIT);
- fprintf(stderr, " lowering ThreadsPerChild to %d. To increase, please"
- " see the\n", HARD_THREAD_LIMIT);
- fprintf(stderr, " HARD_THREAD_LIMIT define in src/include/httpd.h.\n");
+ ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
+ "WARNING: ThreadsPerChild of %d exceeds compile time"
+ " limit of %d threads,", ap_threads_per_child,
+ HARD_THREAD_LIMIT);
+ ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
+ " lowering ThreadsPerChild to %d. To increase, please"
+ " see the HARD_THREAD_LIMIT define in %s.",
+ HARD_THREAD_LIMIT, AP_MPM_HARD_LIMITS_FILE);
+ ap_threads_per_child = HARD_THREAD_LIMIT;
}
else if (ap_threads_per_child < 1) {
- fprintf(stderr, "WARNING: Require ThreadsPerChild > 0, setting to 1\n");
+ ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,
+ "WARNING: Require ThreadsPerChild > 0, setting to 1");
ap_threads_per_child = 1;
}
return NULL;
static const char *set_coredumpdir (cmd_parms *cmd, void *dummy, char *arg)
{
- struct stat finfo;
+ apr_finfo_t finfo;
const char *fname;
const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
if (err != NULL) {
}
fname = ap_server_root_relative(cmd->pool, arg);
- /* ZZZ change this to the AP func FileInfo*/
- if ((stat(fname, &finfo) == -1) || !S_ISDIR(finfo.st_mode)) {
- return ap_pstrcat(cmd->pool, "CoreDumpDirectory ", fname,
+ if ((apr_stat(&finfo, fname, cmd->pool) != APR_SUCCESS) ||
+ (finfo.filetype != APR_DIR)) {
+ return apr_pstrcat(cmd->pool, "CoreDumpDirectory ", fname,
" does not exist or is not a directory", NULL);
}
- ap_cpystrn(ap_coredump_dir, fname, sizeof(ap_coredump_dir));
+ apr_cpystrn(ap_coredump_dir, fname, sizeof(ap_coredump_dir));
return NULL;
}
/* Stub functions until this MPM supports the connection status API */
-API_EXPORT(void) ap_update_connection_status(long conn_id, const char *key, \
+AP_DECLARE(void) ap_update_connection_status(long conn_id, const char *key, \
const char *value)
{
/* NOP */
}
-API_EXPORT(void) ap_reset_connection_status(long conn_id)
+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;
}
static const command_rec winnt_cmds[] = {
LISTEN_COMMANDS
{ "PidFile", set_pidfile, NULL, RSRC_CONF, TAKE1,
"A file for logging the server process ID"},
-//{ "ScoreBoardFile", set_scoreboard, NULL, RSRC_CONF, TAKE1,
-// "A file for Apache to maintain runtime process management information"},
{ "ThreadsPerChild", set_threads_per_child, NULL, RSRC_CONF, TAKE1,
"Number of threads each child creates" },
{ "MaxRequestsPerChild", set_max_requests, NULL, RSRC_CONF, TAKE1,
{ NULL }
};
-module MODULE_VAR_EXPORT mpm_winnt_module = {
- STANDARD20_MODULE_STUFF,
+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 ap_table_t */
- NULL, /* handlers */
+ winnt_cmds, /* command apr_table_t */
winnt_hooks /* register_hooks */
};
projects / apache / blobdiff