#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"
#include "http_core.h"
#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);
#define HARD_SERVER_LIMIT 1
#ifdef NO_THREADS
#define HARD_THREAD_LIMIT 1
#endif
#ifndef HARD_THREAD_LIMIT
#define HARD_THREAD_LIMIT 50
#endif
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 int mpm_state = AP_MPMQ_STARTING;
apr_thread_mutex_t *accept_mutex = NULL;
static apr_pool_t *pconf;
static int server_pid;
int ap_max_child_assigned = -1;
int ap_max_threads_limit = -1;
static apr_socket_t *udp_sock;
static apr_sockaddr_t *udp_sa;
server_rec *ap_server_conf;
static int one_process = 0;
#ifdef DEBUG_SIGSTOP
int raise_sigstop_flags;
#endif
static void check_restart(void *data);
static void clean_child_exit(int code, int slot)
{
(void) ap_update_child_status_from_indexes(0, slot, SERVER_DEAD,
(request_rec*)NULL);
ap_scoreboard_image->servers[0][slot].tid = 0;
exit_thread(code);
}
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;
static void ap_start_shutdown(void)
{
if (shutdown_pending == 1)
return;
shutdown_pending = 1;
}
static void ap_start_restart(int graceful)
{
if (restart_pending == 1) {
return;
}
restart_pending = 1;
is_graceful = graceful;
}
static void sig_coredump(int sig)
{
chdir(ap_coredump_dir);
signal(sig, SIG_DFL);
kill(server_pid, sig);
}
static void sig_term(int sig)
{
ap_start_shutdown();
}
static void restart(int sig)
{
ap_start_restart(sig == AP_SIG_GRACEFUL);
}
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;
}
static apr_status_t beos_accept(void **accepted, ap_listen_rec *lr, apr_pool_t *ptrans)
{
apr_socket_t *csd;
apr_status_t status;
int sockdes;
*accepted = NULL;
status = apr_socket_accept(&csd, lr->sd, ptrans);
if (status == APR_SUCCESS) {
*accepted = csd;
apr_os_sock_get(&sockdes, csd);
return status;
}
if (APR_STATUS_IS_EINTR(status)) {
return status;
}
switch (status) {
#ifdef ECONNABORTED
case ECONNABORTED:
#endif
#ifdef ETIMEDOUT
case ETIMEDOUT:
#endif
#ifdef EHOSTUNREACH
case EHOSTUNREACH:
#endif
#ifdef ENETUNREACH
case ENETUNREACH:
#endif
break;
#ifdef ENETDOWN
case ENETDOWN:
ap_log_error(APLOG_MARK, APLOG_EMERG, status, ap_server_conf,
"apr_socket_accept: giving up.");
return APR_EGENERAL;
#endif
default:
ap_log_error(APLOG_MARK, APLOG_ERR, status, ap_server_conf,
"apr_socket_accept: (client socket)");
return APR_EGENERAL;
}
return status;
}
static void tell_workers_to_exit(void)
{
apr_size_t len;
int i = 0;
for (i = 0 ; i < ap_max_child_assigned; i++){
len = 4;
if (apr_socket_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)");
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 ")");
}
int ap_graceful_stop_signalled(void)
{
return is_graceful;
}
static int32 worker_thread(void *dummy)
{
int worker_slot = (int)dummy;
apr_allocator_t *allocator;
apr_bucket_alloc_t *bucket_alloc;
apr_status_t rv = APR_EINIT;
int last_poll_idx = 0;
sigset_t sig_mask;
int requests_this_child = 0;
apr_pollset_t *pollset = NULL;
ap_listen_rec *lr = NULL;
ap_sb_handle_t *sbh = NULL;
int i;
int this_worker_should_exit = 0;
apr_pool_t *ptrans = NULL;
apr_pool_t *pworker = NULL;
mpm_state = AP_MPMQ_STARTING;
on_exit_thread(check_restart, (void*)worker_slot);
if (!one_process) {
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(&pworker, pconf, NULL, allocator);
apr_allocator_owner_set(allocator, pworker);
apr_pool_create(&ptrans, pworker);
apr_pool_tag(ptrans, "transaction");
ap_create_sb_handle(&sbh, pworker, 0, worker_slot);
(void) ap_update_child_status(sbh, SERVER_READY, (request_rec *) NULL);
apr_pollset_create(&pollset, num_listening_sockets + 1, pworker, 0);
for (lr = ap_listeners, i = num_listening_sockets; i--; lr = lr->next) {
apr_pollfd_t pfd = {0};
pfd.desc_type = APR_POLL_SOCKET;
pfd.desc.s = lr->sd;
pfd.reqevents = APR_POLLIN;
pfd.client_data = lr;
apr_pollset_add(pollset, &pfd);
}
{
apr_pollfd_t pfd = {0};
pfd.desc_type = APR_POLL_SOCKET;
pfd.desc.s = udp_sock;
pfd.reqevents = APR_POLLIN;
apr_pollset_add(pollset, &pfd);
}
bucket_alloc = apr_bucket_alloc_create(pworker);
mpm_state = AP_MPMQ_RUNNING;
while (!this_worker_should_exit) {
conn_rec *current_conn;
void *csd;
apr_pool_clear(ptrans);
if ((ap_max_requests_per_thread > 0
&& requests_this_child++ >= ap_max_requests_per_thread))
clean_child_exit(0, worker_slot);
(void) ap_update_child_status(sbh, SERVER_READY, (request_rec *) NULL);
apr_thread_mutex_lock(accept_mutex);
for (;;) {
apr_int32_t numdesc = 0;
const apr_pollfd_t *pdesc = NULL;
rv = apr_pollset_poll(pollset, -1, &numdesc, &pdesc);
if (rv != APR_SUCCESS) {
if (APR_STATUS_IS_EINTR(rv)) {
if (one_process && shutdown_pending)
return;
continue;
}
ap_log_error(APLOG_MARK, APLOG_ERR, rv,
ap_server_conf, "apr_pollset_poll: (listen)");
clean_child_exit(1, worker_slot);
}
if (last_poll_idx >= numdesc)
last_poll_idx = 0;
lr = pdesc[last_poll_idx++].client_data;
if (lr == NULL) {
this_worker_should_exit = 1;
apr_thread_mutex_unlock(accept_mutex);
goto got_a_black_spot;
}
goto got_fd;
}
got_fd:
rv = beos_accept(&csd, lr, ptrans);
apr_thread_mutex_unlock(accept_mutex);
if (rv == APR_EGENERAL) {
clean_child_exit(1, worker_slot);
} else if (rv != APR_SUCCESS)
continue;
current_conn = ap_run_create_connection(ptrans, ap_server_conf, csd, worker_slot, sbh, bucket_alloc);
if (current_conn) {
ap_process_connection(current_conn, csd);
ap_lingering_close(current_conn);
}
if (ap_my_generation !=
ap_scoreboard_image->global->running_generation) {
this_worker_should_exit = 1;
}
got_a_black_spot:
}
apr_pool_destroy(ptrans);
apr_pool_destroy(pworker);
clean_child_exit(0, worker_slot);
}
static int make_worker(int slot)
{
thread_id tid;
if (slot + 1 > ap_max_child_assigned)
ap_max_child_assigned = slot + 1;
(void) ap_update_child_status_from_indexes(0, slot, SERVER_STARTING, (request_rec*)NULL);
if (one_process) {
set_signals();
ap_scoreboard_image->parent[0].pid = getpid();
ap_scoreboard_image->servers[0][slot].tid = find_thread(NULL);
return 0;
}
tid = spawn_thread(worker_thread, "apache_worker", B_NORMAL_PRIORITY,
(void *)slot);
if (tid < B_NO_ERROR) {
ap_log_error(APLOG_MARK, APLOG_ERR, errno, NULL,
"spawn_thread: Unable to start a new thread");
(void) ap_update_child_status_from_indexes(0, slot, SERVER_DEAD,
(request_rec*)NULL);
sleep(10);
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);
}
}
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;
}
}
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;
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]);
}
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;
}
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) {
make_worker(child_slot);
--remaining_threads_to_start;
}
}
else if (is_graceful) {
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ap_server_conf,
"long lost child came home! (pid %ld)", pid.pid);
}
continue;
}
else if (remaining_threads_to_start) {
startup_threads(remaining_threads_to_start);
remaining_threads_to_start = 0;
continue;
}
perform_idle_server_maintenance();
}
}
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;
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)");
}
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, 0,
_pconf) != APR_SUCCESS){
ap_log_error(APLOG_MARK, APLOG_ALERT, errno, s,
"couldn't create control socket, shutting down");
return 1;
}
if (apr_socket_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);
rv = apr_thread_mutex_create(&accept_mutex, 0, pconf);
if (rv != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s,
"Couldn't create accept lock");
return 1;
}
if (!is_graceful) {
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();
if (max_spare_threads < min_spare_threads )
max_spare_threads = min_spare_threads;
remaining_threads_to_start = ap_threads_to_start;
if (remaining_threads_to_start > ap_thread_limit) {
remaining_threads_to_start = ap_thread_limit;
}
if (!is_graceful && !one_process) {
startup_threads(remaining_threads_to_start);
remaining_threads_to_start = 0;
} else {
hold_off_on_exponential_spawning = 10;
}
ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf,
"%s configured -- resuming normal operations",
ap_get_server_description());
ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf,
"Server built: %s", ap_get_server_built());
restart_pending = shutdown_pending = 0;
mpm_state = AP_MPMQ_RUNNING;
if (!one_process) {
server_main_loop(remaining_threads_to_start);
tell_workers_to_exit();
snooze(1000000);
} else {
worker_thread((void*)0);
}
mpm_state = AP_MPMQ_STOPPING;
apr_socket_close(udp_sock);
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 (shutdown_pending) {
if (beosd_killpg(getpgrp(), SIGTERM) < 0)
ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf,
"killpg SIGTERM");
ap_reclaim_child_processes(1);
if (!child_fatal) {
ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf,
"caught SIGTERM, shutting down");
}
return 1;
}
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 {
ap_reclaim_child_processes(1);
ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf,
"SIGHUP received. Attempting to restart");
}
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");
}
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_MIDDLE);
}
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,
NULL,
NULL,
NULL,
NULL,
beos_cmds,
beos_hooks
};