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authorhongbotian <hongbo.tianhongbo@huawei.com>2015-11-30 03:10:21 -0500
committerhongbotian <hongbo.tianhongbo@huawei.com>2015-11-30 03:10:21 -0500
commitc0b7206652b2852bc574694e7ba07ba1c2acdc00 (patch)
tree5cb95cb0e19e03610525903df46279df2c3b7eb1 /rubbos/app/httpd-2.0.64/server/mpm/beos/beos.c
parentb6d3d6e668b793220f2d3af1bc3e828553dc3fe6 (diff)
delete app
Change-Id: Id4c572809969ebe89e946e88063eaed262cff3f2 Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>
Diffstat (limited to 'rubbos/app/httpd-2.0.64/server/mpm/beos/beos.c')
-rw-r--r--rubbos/app/httpd-2.0.64/server/mpm/beos/beos.c1159
1 files changed, 0 insertions, 1159 deletions
diff --git a/rubbos/app/httpd-2.0.64/server/mpm/beos/beos.c b/rubbos/app/httpd-2.0.64/server/mpm/beos/beos.c
deleted file mode 100644
index 51a17c3e..00000000
--- a/rubbos/app/httpd-2.0.64/server/mpm/beos/beos.c
+++ /dev/null
@@ -1,1159 +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.
- */
-
-/* The new BeOS MPM!
- *
- * This one basically is a single process multi threaded model, but
- * I couldn't be bothered adding the spmt_ to the front of the name!
- * Anyway, this is still under development so it isn't yet the default
- * choice.
- */
-
-#define CORE_PRIVATE
-
-#include <kernel/OS.h>
-#include <unistd.h>
-#include <sys/socket.h>
-#include <signal.h>
-
-#include "apr_strings.h"
-#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 "ap_mpm.h"
-#include "beosd.h"
-#include "ap_listen.h"
-#include "scoreboard.h"
-#include "mpm_common.h"
-#include "mpm.h"
-#include "mpm_default.h"
-#include "apr_thread_mutex.h"
-#include "apr_poll.h"
-
-extern int _kset_fd_limit_(int num);
-
-/* Limit on the total --- clients will be locked out if more servers than
- * this are needed. It is intended solely to keep the server from crashing
- * when things get out of hand.
- *
- * We keep a hard maximum number of servers, for two reasons:
- * 1) in case something goes seriously wrong, we want to stop the server starting
- * threads ad infinitum and crashing the server (remember that BeOS has a 192
- * thread per team limit).
- * 2) it keeps the size of the scoreboard file small
- * enough that we can read the whole thing without worrying too much about
- * the overhead.
- */
-
-/* we only ever have 1 main process running... */
-#define HARD_SERVER_LIMIT 1
-
-/* Limit on the threads per process. Clients will be locked out if more than
- * this * HARD_SERVER_LIMIT are needed.
- *
- * We keep this for one reason it keeps the size of the scoreboard file small
- * enough that we can read the whole thing without worrying too much about
- * the overhead.
- */
-#ifdef NO_THREADS
-#define HARD_THREAD_LIMIT 1
-#endif
-#ifndef HARD_THREAD_LIMIT
-#define HARD_THREAD_LIMIT 50
-#endif
-
-/*
- * Actual definitions of config globals
- */
-
-static int ap_threads_to_start=0;
-static int ap_max_requests_per_thread = 0;
-static int min_spare_threads=0;
-static int max_spare_threads=0;
-static int ap_thread_limit=0;
-static int num_listening_sockets = 0;
-static apr_socket_t ** listening_sockets;
-apr_thread_mutex_t *accept_mutex = NULL;
-
-static apr_pool_t *pconf; /* Pool for config stuff */
-static apr_pool_t *pchild; /* Pool for httpd child stuff */
-
-static int server_pid;
-static int mpm_state = AP_MPMQ_STARTING;
-
-/* Keep track of the number of worker threads currently active */
-static int worker_thread_count;
-apr_thread_mutex_t *worker_thread_count_mutex;
-
-/* The structure used to pass unique initialization info to each thread */
-typedef struct {
- int slot;
- apr_pool_t *tpool;
-} proc_info;
-
-static void check_restart(void *data);
-
-/*
- * The max child slot ever assigned, preserved across restarts. Necessary
- * to deal with MaxClients changes across AP_SIG_GRACEFUL restarts. We use
- * this value to optimize routines that have to scan the entire scoreboard.
- */
-int ap_max_child_assigned = -1;
-int ap_max_threads_limit = -1;
-
-static apr_socket_t *udp_sock;
-static apr_sockaddr_t *udp_sa;
-
-/* shared http_main globals... */
-
-server_rec *ap_server_conf;
-
-/* one_process */
-static int one_process = 0;
-
-#ifdef DEBUG_SIGSTOP
-int raise_sigstop_flags;
-#endif
-
-/* a clean exit from a child with proper cleanup
- static void clean_child_exit(int code) __attribute__ ((noreturn)); */
-static void clean_child_exit(int code)
-{
- if (pchild)
- apr_pool_destroy(pchild);
- exit(code);
-}
-
-/* handle all varieties of core dumping signals */
-static void sig_coredump(int sig)
-{
- chdir(ap_coredump_dir);
- signal(sig, SIG_DFL);
- kill(server_pid, sig);
- /* At this point we've got sig blocked, because we're still inside
- * the signal handler. When we leave the signal handler it will
- * be unblocked, and we'll take the signal... and coredump or whatever
- * is appropriate for this particular Unix. In addition the parent
- * will see the real signal we received -- whereas if we called
- * abort() here, the parent would only see SIGABRT.
- */
-}
-
-/*****************************************************************
- * Connection structures and accounting...
- */
-
-/* volatile just in case */
-static int volatile shutdown_pending;
-static int volatile restart_pending;
-static int volatile is_graceful;
-static int volatile child_fatal;
-ap_generation_t volatile ap_my_generation = 0;
-
-/*
- * ap_start_shutdown() and ap_start_restart(), below, are a first stab at
- * functions to initiate shutdown or restart without relying on signals.
- * Previously this was initiated in sig_term() and restart() signal handlers,
- * but we want to be able to start a shutdown/restart from other sources --
- * e.g. on Win32, from the service manager. Now the service manager can
- * call ap_start_shutdown() or ap_start_restart() as appropiate. Note that
- * these functions can also be called by the child processes, since global
- * variables are no longer used to pass on the required action to the parent.
- *
- * These should only be called from the parent process itself, since the
- * parent process will use the shutdown_pending and restart_pending variables
- * to determine whether to shutdown or restart. The child process should
- * call signal_parent() directly to tell the parent to die -- this will
- * cause neither of those variable to be set, which the parent will
- * assume means something serious is wrong (which it will be, for the
- * child to force an exit) and so do an exit anyway.
- */
-
-static void ap_start_shutdown(void)
-{
- mpm_state = AP_MPMQ_STOPPING;
-
- if (shutdown_pending == 1) {
- /* Um, is this _probably_ not an error, if the user has
- * tried to do a shutdown twice quickly, so we won't
- * worry about reporting it.
- */
- return;
- }
- shutdown_pending = 1;
-}
-
-/* do a graceful restart if graceful == 1 */
-static void ap_start_restart(int graceful)
-{
- mpm_state = AP_MPMQ_STOPPING;
-
- if (restart_pending == 1) {
- /* Probably not an error - don't bother reporting it */
- return;
- }
- restart_pending = 1;
- is_graceful = graceful;
-}
-
-static void sig_term(int sig)
-{
- ap_start_shutdown();
-}
-
-static void restart(int sig)
-{
- ap_start_restart(sig == AP_SIG_GRACEFUL);
-}
-
-static void tell_workers_to_exit(void)
-{
- apr_size_t len;
- int i = 0;
-
- mpm_state = AP_MPMQ_STOPPING;
-
- for (i = 0 ; i < ap_max_child_assigned; i++){
- len = 4;
- if (apr_sendto(udp_sock, udp_sa, 0, "die!", &len) != APR_SUCCESS)
- break;
- }
-}
-
-static void set_signals(void)
-{
- struct sigaction sa;
-
- sigemptyset(&sa.sa_mask);
- sa.sa_flags = 0;
-
- if (!one_process) {
- sa.sa_handler = sig_coredump;
-
- if (sigaction(SIGSEGV, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGSEGV)");
- if (sigaction(SIGBUS, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGBUS)");
- if (sigaction(SIGABRT, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGABRT)");
- if (sigaction(SIGILL, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGILL)");
- sa.sa_flags = 0;
- }
- sa.sa_handler = sig_term;
- if (sigaction(SIGTERM, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGTERM)");
- if (sigaction(SIGINT, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGINT)");
-
- sa.sa_handler = SIG_IGN;
- if (sigaction(SIGPIPE, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGPIPE)");
-
- /* we want to ignore HUPs and AP_SIG_GRACEFUL while we're busy
- * processing one */
- sigaddset(&sa.sa_mask, SIGHUP);
- sigaddset(&sa.sa_mask, AP_SIG_GRACEFUL);
- sa.sa_handler = restart;
- if (sigaction(SIGHUP, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGHUP)");
- if (sigaction(AP_SIG_GRACEFUL, &sa, NULL) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(" AP_SIG_GRACEFUL_STRING ")");
-}
-
-/*****************************************************************
- * Here follows a long bunch of generic server bookkeeping stuff...
- */
-
-int ap_graceful_stop_signalled(void)
-{
- /* XXX - Does this really work? - Manoj */
- return is_graceful;
-}
-
-/*****************************************************************
- * Child process main loop.
- */
-
-static void process_socket(apr_pool_t *p, apr_socket_t *sock,
- int my_child_num, apr_bucket_alloc_t *bucket_alloc)
-{
- conn_rec *current_conn;
- long conn_id = my_child_num;
- int csd;
- ap_sb_handle_t *sbh;
-
- (void)apr_os_sock_get(&csd, sock);
-
- if (csd >= FD_SETSIZE) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL,
- "filedescriptor (%u) larger than FD_SETSIZE (%u) "
- "found, you probably need to rebuild Apache with a "
- "larger FD_SETSIZE", csd, FD_SETSIZE);
- apr_socket_close(sock);
- return;
- }
-
- ap_create_sb_handle(&sbh, p, 0, my_child_num);
- current_conn = ap_run_create_connection(p, ap_server_conf,
- sock, conn_id, sbh,
- bucket_alloc);
-
- if (current_conn) {
- ap_process_connection(current_conn, sock);
- ap_lingering_close(current_conn);
- }
-}
-
-static int32 worker_thread(void * dummy)
-{
- proc_info * ti = dummy;
- int child_slot = ti->slot;
- apr_pool_t *tpool = ti->tpool;
- apr_allocator_t *allocator;
- apr_socket_t *csd = NULL;
- apr_pool_t *ptrans; /* Pool for per-transaction stuff */
- apr_bucket_alloc_t *bucket_alloc;
- apr_socket_t *sd = NULL;
- apr_status_t rv = APR_EINIT;
- int srv , n;
- int curr_pollfd = 0, last_pollfd = 0;
- sigset_t sig_mask;
- int requests_this_child = ap_max_requests_per_thread;
- apr_pollfd_t *pollset;
- /* each worker thread is in control of its own destiny...*/
- int this_worker_should_exit = 0;
- free(ti);
-
- mpm_state = AP_MPMQ_STARTING;
-
- on_exit_thread(check_restart, (void*)child_slot);
-
- /* block the signals for this thread */
- sigfillset(&sig_mask);
- sigprocmask(SIG_BLOCK, &sig_mask, NULL);
-
- apr_allocator_create(&allocator);
- apr_allocator_max_free_set(allocator, ap_max_mem_free);
- apr_pool_create_ex(&ptrans, tpool, NULL, allocator);
- apr_allocator_owner_set(allocator, ptrans);
-
- apr_pool_tag(ptrans, "transaction");
-
- bucket_alloc = apr_bucket_alloc_create_ex(allocator);
-
- apr_thread_mutex_lock(worker_thread_count_mutex);
- worker_thread_count++;
- apr_thread_mutex_unlock(worker_thread_count_mutex);
-
- (void) ap_update_child_status_from_indexes(0, child_slot, SERVER_STARTING,
- (request_rec*)NULL);
-
- apr_poll_setup(&pollset, num_listening_sockets + 1, tpool);
- for(n=0 ; n <= num_listening_sockets ; n++)
- apr_poll_socket_add(pollset, listening_sockets[n], APR_POLLIN);
-
- mpm_state = AP_MPMQ_RUNNING;
-
- while (1) {
- /* If we're here, then chances are (unless we're the first thread created)
- * we're going to be held up in the accept mutex, so doing this here
- * shouldn't hurt performance.
- */
-
- this_worker_should_exit |= (ap_max_requests_per_thread != 0) && (requests_this_child <= 0);
-
- if (this_worker_should_exit) break;
-
- (void) ap_update_child_status_from_indexes(0, child_slot, SERVER_READY,
- (request_rec*)NULL);
-
- apr_thread_mutex_lock(accept_mutex);
-
- while (!this_worker_should_exit) {
- apr_int16_t event;
- apr_status_t ret;
-
- ret = apr_poll(pollset, num_listening_sockets + 1, &srv, -1);
-
- if (ret != APR_SUCCESS) {
- if (APR_STATUS_IS_EINTR(ret)) {
- continue;
- }
- /* poll() will only return errors in catastrophic
- * circumstances. Let's try exiting gracefully, for now. */
- ap_log_error(APLOG_MARK, APLOG_ERR, ret, (const server_rec *)
- ap_server_conf, "apr_poll: (listen)");
- this_worker_should_exit = 1;
- } else {
- /* if we've bailed in apr_poll what's the point of trying to use the data? */
- apr_poll_revents_get(&event, listening_sockets[0], pollset);
-
- if (event & APR_POLLIN){
- apr_sockaddr_t *rec_sa;
- apr_size_t len = 5;
- char *tmpbuf = apr_palloc(ptrans, sizeof(char) * 5);
- apr_sockaddr_info_get(&rec_sa, "127.0.0.1", APR_UNSPEC, 7772, 0, ptrans);
-
- if ((ret = apr_recvfrom(rec_sa, listening_sockets[0], 0, tmpbuf, &len))
- != APR_SUCCESS){
- ap_log_error(APLOG_MARK, APLOG_ERR, ret, NULL,
- "error getting data from UDP!!");
- }else {
- /* add checking??? */
- }
- this_worker_should_exit = 1;
- }
- }
-
- if (this_worker_should_exit) break;
-
- if (num_listening_sockets == 1) {
- sd = ap_listeners->sd;
- goto got_fd;
- }
- else {
- /* find a listener */
- curr_pollfd = last_pollfd;
- do {
- curr_pollfd++;
-
- if (curr_pollfd > num_listening_sockets)
- curr_pollfd = 1;
-
- /* Get the revent... */
- apr_poll_revents_get(&event, listening_sockets[curr_pollfd], pollset);
-
- if (event & APR_POLLIN) {
- last_pollfd = curr_pollfd;
- sd = listening_sockets[curr_pollfd];
- goto got_fd;
- }
- } while (curr_pollfd != last_pollfd);
- }
- }
- got_fd:
-
- if (!this_worker_should_exit) {
- rv = apr_accept(&csd, sd, ptrans);
-
- apr_thread_mutex_unlock(accept_mutex);
- if (rv != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf,
- "apr_accept");
- } else {
- process_socket(ptrans, csd, child_slot, bucket_alloc);
- requests_this_child--;
- }
- }
- else {
- apr_thread_mutex_unlock(accept_mutex);
- break;
- }
- apr_pool_clear(ptrans);
- }
-
- ap_update_child_status_from_indexes(0, child_slot, SERVER_DEAD, (request_rec*)NULL);
-
- apr_bucket_alloc_destroy(bucket_alloc);
-
- ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, NULL,
- "worker_thread %ld exiting", find_thread(NULL));
-
- apr_thread_mutex_lock(worker_thread_count_mutex);
- worker_thread_count--;
- apr_thread_mutex_unlock(worker_thread_count_mutex);
-
- return (0);
-}
-
-static int make_worker(int slot)
-{
- thread_id tid;
- proc_info *my_info = (proc_info *)malloc(sizeof(proc_info)); /* freed by thread... */
-
- if (my_info == NULL) {
- ap_log_error(APLOG_MARK, APLOG_ALERT, errno, ap_server_conf,
- "malloc: out of memory");
- clean_child_exit(APEXIT_CHILDFATAL);
- }
-
- my_info->slot = slot;
- apr_pool_create(&my_info->tpool, pchild);
-
- if (slot + 1 > ap_max_child_assigned)
- ap_max_child_assigned = slot + 1;
-
- if (one_process) {
- set_signals();
- ap_scoreboard_image->parent[0].pid = getpid();
- return 0;
- }
-
- (void) ap_update_child_status_from_indexes(0, slot, SERVER_STARTING, (request_rec*)NULL);
- tid = spawn_thread(worker_thread, "apache_worker", B_NORMAL_PRIORITY,
- my_info);
- if (tid < B_NO_ERROR) {
- ap_log_error(APLOG_MARK, APLOG_ERR, errno, NULL,
- "spawn_thread: Unable to start a new thread");
- /* In case system resources are maxxed out, we don't want
- * Apache running away with the CPU trying to fork over and
- * over and over again.
- */
- (void) ap_update_child_status_from_indexes(0, slot, SERVER_DEAD,
- (request_rec*)NULL);
-
- sleep(10);
- free(my_info);
-
- return -1;
- }
- resume_thread(tid);
-
- ap_scoreboard_image->servers[0][slot].tid = tid;
- return 0;
-}
-
-static void check_restart(void *data)
-{
- if (!restart_pending && !shutdown_pending) {
- int slot = (int)data;
- make_worker(slot);
- ap_log_error(APLOG_MARK, APLOG_INFO, 0, NULL,
- "spawning a new worker thread in slot %d", slot);
- }
-}
-
-/* start up a bunch of children */
-static void startup_threads(int number_to_start)
-{
- int i;
-
- for (i = 0; number_to_start && i < ap_thread_limit; ++i) {
- if (ap_scoreboard_image->servers[0][i].tid) {
- continue;
- }
- if (make_worker(i) < 0) {
- break;
- }
- --number_to_start;
- }
-}
-
-
-/*
- * spawn_rate is the number of children that will be spawned on the
- * next maintenance cycle if there aren't enough idle servers. It is
- * doubled up to MAX_SPAWN_RATE, and reset only when a cycle goes by
- * without the need to spawn.
- */
-static int spawn_rate = 1;
-#ifndef MAX_SPAWN_RATE
-#define MAX_SPAWN_RATE (32)
-#endif
-static int hold_off_on_exponential_spawning;
-
-static void perform_idle_server_maintenance(void)
-{
- int i;
- int free_length;
- int free_slots[MAX_SPAWN_RATE];
- int last_non_dead = -1;
-
- /* initialize the free_list */
- free_length = 0;
-
- for (i = 0; i < ap_thread_limit; ++i) {
- if (ap_scoreboard_image->servers[0][i].tid == 0) {
- if (free_length < spawn_rate) {
- free_slots[free_length] = i;
- ++free_length;
- }
- }
- else {
- last_non_dead = i;
- }
-
- if (i >= ap_max_child_assigned && free_length >= spawn_rate) {
- break;
- }
- }
- ap_max_child_assigned = last_non_dead + 1;
-
- if (free_length > 0) {
- for (i = 0; i < free_length; ++i) {
- make_worker(free_slots[i]);
- }
- /* the next time around we want to spawn twice as many if this
- * wasn't good enough, but not if we've just done a graceful
- */
- if (hold_off_on_exponential_spawning) {
- --hold_off_on_exponential_spawning;
- } else if (spawn_rate < MAX_SPAWN_RATE) {
- spawn_rate *= 2;
- }
- } else {
- spawn_rate = 1;
- }
-}
-
-static void server_main_loop(int remaining_threads_to_start)
-{
- int child_slot;
- apr_exit_why_e exitwhy;
- int status;
- apr_proc_t pid;
- int i;
-
- while (!restart_pending && !shutdown_pending) {
-
- ap_wait_or_timeout(&exitwhy, &status, &pid, pconf);
-
- if (pid.pid >= 0) {
- if (ap_process_child_status(&pid, exitwhy, status) == APEXIT_CHILDFATAL) {
- shutdown_pending = 1;
- child_fatal = 1;
- return;
- }
- /* non-fatal death... note that it's gone in the scoreboard. */
- child_slot = -1;
- for (i = 0; i < ap_max_child_assigned; ++i) {
- if (ap_scoreboard_image->servers[0][i].tid == pid.pid) {
- child_slot = i;
- break;
- }
- }
- if (child_slot >= 0) {
- ap_scoreboard_image->servers[0][child_slot].tid = 0;
- (void) ap_update_child_status_from_indexes(0, child_slot,
- SERVER_DEAD,
- (request_rec*)NULL);
-
- if (remaining_threads_to_start
- && child_slot < ap_thread_limit) {
- /* we're still doing a 1-for-1 replacement of dead
- * children with new children
- */
- make_worker(child_slot);
- --remaining_threads_to_start;
- }
-#if APR_HAS_OTHER_CHILD
- }
- else if (apr_proc_other_child_read(&pid, status) == 0) {
- /* handled */
-#endif
- }
- else if (is_graceful) {
- /* Great, we've probably just lost a slot in the
- * scoreboard. Somehow we don't know about this
- * child.
- */
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ap_server_conf,
- "long lost child came home! (pid %ld)", pid.pid);
- }
-
- /* Don't perform idle maintenance when a child dies,
- * only do it when there's a timeout. Remember only a
- * finite number of children can die, and it's pretty
- * pathological for a lot to die suddenly.
- */
- continue;
- }
- else if (remaining_threads_to_start) {
- /* we hit a 1 second timeout in which none of the previous
- * generation of children needed to be reaped... so assume
- * they're all done, and pick up the slack if any is left.
- */
- startup_threads(remaining_threads_to_start);
- remaining_threads_to_start = 0;
- /* In any event we really shouldn't do the code below because
- * few of the servers we just started are in the IDLE state
- * yet, so we'd mistakenly create an extra server.
- */
- continue;
- }
- perform_idle_server_maintenance();
- }
-}
-
-AP_DECLARE(apr_status_t) ap_mpm_query(int query_code, int *result)
-{
- switch(query_code){
- case AP_MPMQ_MAX_DAEMON_USED:
- *result = ap_max_child_assigned;
- return APR_SUCCESS;
- case AP_MPMQ_IS_THREADED:
- *result = AP_MPMQ_DYNAMIC;
- return APR_SUCCESS;
- case AP_MPMQ_IS_FORKED:
- *result = AP_MPMQ_NOT_SUPPORTED;
- return APR_SUCCESS;
- case AP_MPMQ_HARD_LIMIT_DAEMONS:
- *result = HARD_SERVER_LIMIT;
- return APR_SUCCESS;
- case AP_MPMQ_HARD_LIMIT_THREADS:
- *result = HARD_THREAD_LIMIT;
- return APR_SUCCESS;
- case AP_MPMQ_MAX_THREADS:
- *result = HARD_THREAD_LIMIT;
- return APR_SUCCESS;
- case AP_MPMQ_MIN_SPARE_DAEMONS:
- *result = 0;
- return APR_SUCCESS;
- case AP_MPMQ_MIN_SPARE_THREADS:
- *result = max_spare_threads;
- return APR_SUCCESS;
- case AP_MPMQ_MAX_SPARE_DAEMONS:
- *result = 0;
- return APR_SUCCESS;
- case AP_MPMQ_MAX_SPARE_THREADS:
- *result = min_spare_threads;
- return APR_SUCCESS;
- case AP_MPMQ_MAX_REQUESTS_DAEMON:
- *result = ap_max_requests_per_thread;
- return APR_SUCCESS;
- case AP_MPMQ_MAX_DAEMONS:
- *result = HARD_SERVER_LIMIT;
- return APR_SUCCESS;
- case AP_MPMQ_MPM_STATE:
- *result = mpm_state;
- return APR_SUCCESS;
- }
- return APR_ENOTIMPL;
-}
-
-int ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s)
-{
- int remaining_threads_to_start, i,j;
- apr_status_t rv;
- ap_listen_rec *lr;
- pconf = _pconf;
- ap_server_conf = s;
-
- /* Increase the available pool of fd's. This code from
- * Joe Kloss <joek@be.com>
- */
- if( FD_SETSIZE > 128 && (i = _kset_fd_limit_( 128 )) < 0 ){
- ap_log_error(APLOG_MARK, APLOG_ERR, i, s,
- "could not set FD_SETSIZE (_kset_fd_limit_ failed)");
- }
-
- /* BeOS R5 doesn't support pipes on select() calls, so we use a
- UDP socket as these are supported in both R5 and BONE. If we only cared
- about BONE we'd use a pipe, but there it is.
- As we have UDP support in APR, now use the APR functions and check all the
- return values...
- */
- if (apr_sockaddr_info_get(&udp_sa, "127.0.0.1", APR_UNSPEC, 7772, 0, _pconf)
- != APR_SUCCESS){
- ap_log_error(APLOG_MARK, APLOG_ALERT, errno, s,
- "couldn't create control socket information, shutting down");
- return 1;
- }
- if (apr_socket_create(&udp_sock, udp_sa->family, SOCK_DGRAM,
- _pconf) != APR_SUCCESS){
- ap_log_error(APLOG_MARK, APLOG_ALERT, errno, s,
- "couldn't create control socket, shutting down");
- return 1;
- }
- if (apr_bind(udp_sock, udp_sa) != APR_SUCCESS){
- ap_log_error(APLOG_MARK, APLOG_ALERT, errno, s,
- "couldn't bind UDP socket!");
- return 1;
- }
-
- if ((num_listening_sockets = ap_setup_listeners(ap_server_conf)) < 1) {
- ap_log_error(APLOG_MARK, APLOG_ALERT, 0, s,
- "no listening sockets available, shutting down");
- return 1;
- }
-
- ap_log_pid(pconf, ap_pid_fname);
-
- /*
- * Create our locks...
- */
-
- /* accept_mutex
- * used to lock around select so we only have one thread
- * in select at a time
- */
- rv = apr_thread_mutex_create(&accept_mutex, 0, pconf);
- if (rv != APR_SUCCESS) {
- /* tsch tsch, can't have more than one thread in the accept loop
- at a time so we need to fall on our sword... */
- ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s,
- "Couldn't create accept lock");
- return 1;
- }
-
- /* worker_thread_count_mutex
- * locks the worker_thread_count so we have ana ccurate count...
- */
- rv = apr_thread_mutex_create(&worker_thread_count_mutex, 0, pconf);
- if (rv != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s,
- "Couldn't create worker thread count lock");
- return 1;
- }
-
- /*
- * Startup/shutdown...
- */
-
- if (!is_graceful) {
- /* setup the scoreboard shared memory */
- if (ap_run_pre_mpm(s->process->pool, SB_SHARED) != OK) {
- return 1;
- }
-
- for (i = 0; i < HARD_SERVER_LIMIT; i++) {
- ap_scoreboard_image->parent[i].pid = 0;
- for (j = 0;j < HARD_THREAD_LIMIT; j++)
- ap_scoreboard_image->servers[i][j].tid = 0;
- }
- }
-
- if (HARD_SERVER_LIMIT == 1)
- ap_scoreboard_image->parent[0].pid = getpid();
-
- set_signals();
-
- /* Sanity checks to avoid thrashing... */
- if (max_spare_threads < min_spare_threads )
- max_spare_threads = min_spare_threads;
-
- /* If we're doing a graceful_restart then we're going to see a lot
- * of threads exiting immediately when we get into the main loop
- * below (because we just sent them AP_SIG_GRACEFUL). This happens
- * pretty rapidly... and for each one that exits we'll start a new one
- * until we reach at least threads_min_free. But we may be permitted to
- * start more than that, so we'll just keep track of how many we're
- * supposed to start up without the 1 second penalty between each fork.
- */
- remaining_threads_to_start = ap_threads_to_start;
- /* sanity check on the number to start... */
- if (remaining_threads_to_start > ap_thread_limit) {
- remaining_threads_to_start = ap_thread_limit;
- }
-
- /* setup the child pool to use for the workers. Each worker creates
- * a seperate pool of its own to use.
- */
- apr_pool_create(&pchild, pconf);
-
- /* Now that we have the child pool (pchild) we can allocate
- * the listenfds and creat the pollset...
- */
- listening_sockets = apr_palloc(pchild,
- sizeof(*listening_sockets) * (num_listening_sockets + 1));
-
- listening_sockets[0] = udp_sock;
- for (lr = ap_listeners, i = 1; i <= num_listening_sockets; lr = lr->next, ++i)
- listening_sockets[i]=lr->sd;
-
- /* we assume all goes OK...hmm might want to check that! */
- /* if we're in one_process mode we don't want to start threads
- * do we??
- */
- if (!is_graceful && !one_process) {
- startup_threads(remaining_threads_to_start);
- remaining_threads_to_start = 0;
- }
- else {
- /* give the system some time to recover before kicking into
- * exponential mode */
- hold_off_on_exponential_spawning = 10;
- }
-
- /*
- * record that we've entered the world !
- */
- ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf,
- "%s configured -- resuming normal operations",
- ap_get_server_version());
-
- ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf,
- "Server built: %s", ap_get_server_built());
-
- restart_pending = shutdown_pending = 0;
-
- /*
- * main_loop until it's all over
- */
- if (!one_process) {
- server_main_loop(remaining_threads_to_start);
-
- tell_workers_to_exit(); /* if we get here we're exiting... */
- sleep(1); /* give them a brief chance to exit */
- } else {
- proc_info *my_info = (proc_info *)malloc(sizeof(proc_info));
- my_info->slot = 0;
- apr_pool_create(&my_info->tpool, pchild);
- worker_thread(my_info);
- }
-
- /* close the UDP socket we've been using... */
- apr_socket_close(listening_sockets[0]);
-
- if ((one_process || shutdown_pending) && !child_fatal) {
- const char *pidfile = NULL;
- pidfile = ap_server_root_relative (pconf, ap_pid_fname);
- if ( pidfile != NULL && unlink(pidfile) == 0)
- ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf,
- "removed PID file %s (pid=%ld)", pidfile,
- (long)getpid());
- }
-
- if (one_process) {
- return 1;
- }
-
- /*
- * If we get here we're shutting down...
- */
- if (shutdown_pending) {
- /* Time to gracefully shut down:
- * Kill child processes, tell them to call child_exit, etc...
- */
- if (beosd_killpg(getpgrp(), SIGTERM) < 0)
- ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf,
- "killpg SIGTERM");
-
- /* use ap_reclaim_child_processes starting with SIGTERM */
- ap_reclaim_child_processes(1);
-
- if (!child_fatal) { /* already recorded */
- /* record the shutdown in the log */
- ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf,
- "caught SIGTERM, shutting down");
- }
-
- return 1;
- }
-
- /* we've been told to restart */
- signal(SIGHUP, SIG_IGN);
-
- if (is_graceful) {
- ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf,
- AP_SIG_GRACEFUL_STRING " received. Doing graceful restart");
- }
- else {
- /* Kill 'em all. Since the child acts the same on the parents SIGTERM
- * and a SIGHUP, we may as well use the same signal, because some user
- * pthreads are stealing signals from us left and right.
- */
-
- ap_reclaim_child_processes(1); /* Start with SIGTERM */
- ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf,
- "SIGHUP received. Attempting to restart");
- }
-
- /* just before we go, tidy up the locks we've created to prevent a
- * potential leak of semaphores... */
- apr_thread_mutex_destroy(worker_thread_count_mutex);
- apr_thread_mutex_destroy(accept_mutex);
-
- return 0;
-}
-
-static int beos_pre_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp)
-{
- static int restart_num = 0;
- int no_detach, debug, foreground;
- apr_status_t rv;
-
- mpm_state = AP_MPMQ_STARTING;
-
- debug = ap_exists_config_define("DEBUG");
-
- if (debug) {
- foreground = one_process = 1;
- no_detach = 0;
- }
- else
- {
- one_process = ap_exists_config_define("ONE_PROCESS");
- no_detach = ap_exists_config_define("NO_DETACH");
- foreground = ap_exists_config_define("FOREGROUND");
- }
-
- /* sigh, want this only the second time around */
- if (restart_num++ == 1) {
- is_graceful = 0;
-
- if (!one_process && !foreground) {
- rv = apr_proc_detach(no_detach ? APR_PROC_DETACH_FOREGROUND
- : APR_PROC_DETACH_DAEMONIZE);
- if (rv != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL,
- "apr_proc_detach failed");
- return HTTP_INTERNAL_SERVER_ERROR;
- }
- }
-
- server_pid = getpid();
- }
-
- beosd_pre_config();
- ap_listen_pre_config();
- ap_threads_to_start = DEFAULT_START_THREADS;
- min_spare_threads = DEFAULT_MIN_FREE_THREADS;
- max_spare_threads = DEFAULT_MAX_FREE_THREADS;
- ap_thread_limit = HARD_THREAD_LIMIT;
- ap_pid_fname = DEFAULT_PIDLOG;
- ap_max_requests_per_thread = DEFAULT_MAX_REQUESTS_PER_THREAD;
-#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 void beos_hooks(apr_pool_t *p)
-{
- one_process = 0;
-
- ap_hook_pre_config(beos_pre_config, NULL, NULL, APR_HOOK_REALLY_FIRST);
-}
-
-static const char *set_threads_to_start(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- ap_threads_to_start = atoi(arg);
- if (ap_threads_to_start < 0) {
- ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
- "StartThreads set to a value less than 0, reset to 1");
- ap_threads_to_start = 1;
- }
- return NULL;
-}
-
-static const char *set_min_spare_threads(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- min_spare_threads = atoi(arg);
- if (min_spare_threads <= 0) {
- ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
- "WARNING: detected MinSpareThreads set to non-positive.");
- ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
- "Resetting to 1 to avoid almost certain Apache failure.");
- ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
- "Please read the documentation.");
- min_spare_threads = 1;
- }
-
- return NULL;
-}
-
-static const char *set_max_spare_threads(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- max_spare_threads = atoi(arg);
- return NULL;
-}
-
-static const char *set_threads_limit (cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- ap_thread_limit = atoi(arg);
- if (ap_thread_limit > HARD_THREAD_LIMIT) {
- ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
- "WARNING: MaxClients of %d exceeds compile time limit "
- "of %d servers,", ap_thread_limit, HARD_THREAD_LIMIT);
- ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
- " lowering MaxClients to %d. To increase, please "
- "see the", HARD_THREAD_LIMIT);
- ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
- " HARD_THREAD_LIMIT define in server/mpm/beos/mpm_default.h.");
- ap_thread_limit = HARD_THREAD_LIMIT;
- }
- else if (ap_thread_limit < 1) {
- ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
- "WARNING: Require MaxClients > 0, setting to %d", HARD_THREAD_LIMIT);
- ap_thread_limit = HARD_THREAD_LIMIT;
- }
- return NULL;
-}
-
-static const char *set_max_requests_per_thread (cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- ap_max_requests_per_thread = atoi(arg);
- if (ap_max_requests_per_thread < 0) {
- ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
- "WARNING: MaxRequestsPerThread was set below 0"
- "reset to 0, but this may not be what you want.");
- ap_max_requests_per_thread = 0;
- }
-
- return NULL;
-}
-
-static const command_rec beos_cmds[] = {
-BEOS_DAEMON_COMMANDS,
-LISTEN_COMMANDS,
-AP_INIT_TAKE1( "StartThreads", set_threads_to_start, NULL, RSRC_CONF,
- "Number of threads to launch at server startup"),
-AP_INIT_TAKE1( "MinSpareThreads", set_min_spare_threads, NULL, RSRC_CONF,
- "Minimum number of idle children, to handle request spikes"),
-AP_INIT_TAKE1( "MaxSpareThreads", set_max_spare_threads, NULL, RSRC_CONF,
- "Maximum number of idle children" ),
-AP_INIT_TAKE1( "MaxClients", set_threads_limit, NULL, RSRC_CONF,
- "Maximum number of children alive at the same time (max threads)" ),
-AP_INIT_TAKE1( "MaxRequestsPerThread", set_max_requests_per_thread, NULL, RSRC_CONF,
- "Maximum number of requests served by a thread" ),
-{ NULL }
-};
-
-module AP_MODULE_DECLARE_DATA mpm_beos_module = {
- MPM20_MODULE_STUFF,
- NULL, /* hook to run before apache parses args */
- NULL, /* create per-directory config structure */
- NULL, /* merge per-directory config structures */
- NULL, /* create per-server config structure */
- NULL, /* merge per-server config structures */
- beos_cmds, /* command apr_table_t */
- beos_hooks /* register_hooks */
-};
-