f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein#define CORE_PRIVATE

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "ap_config.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "apr_portable.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "apr_file_io.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "httpd.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "http_main.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "http_log.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "http_config.h" /* for read_config */

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "http_core.h" /* for get_remote_host */

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "http_connection.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "ap_mpm.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "unixd.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "mpm_common.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "iol_socket.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "ap_listen.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "mpm_default.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "mpm.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include "scoreboard.h"

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef HAVE_UNISTD_H

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include <unistd.h>

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include <poll.h>

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef HAVE_SYS_SOCKET_H

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include <sys/socket.h>

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef HAVE_NETINET_TCP_H

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include <netinet/tcp.h>

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include <pthread.h>

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include <signal.h>

8a46775d163c06a8c51d1b0a3f2edfde945cb1d8stoddard

f4c310fd2555c6faca1f980f00b161eadb089023gstein

000397350b42c6266351bd618fa07df929fa7c79gsteinstatic int threads_to_start = 0; /* Worker threads per child */

000397350b42c6266351bd618fa07df929fa7c79gsteinstatic int min_spare_threads = 0;

000397350b42c6266351bd618fa07df929fa7c79gsteinstatic int max_spare_threads = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int max_threads = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int max_requests_per_child = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic const char *ap_pid_fname=NULL;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinAPI_VAR_EXPORT const char *ap_scoreboard_fname=NULL;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int num_daemons=0;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int workers_may_exit = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int requests_this_child;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int num_listenfds = 0;

9f18c80269be35c0b5653e84b0db0a24044722c4gsteinstatic ap_socket_t **listenfds;

9f18c80269be35c0b5653e84b0db0a24044722c4gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstruct ap_ctable ap_child_table[HARD_SERVER_LIMIT];

f4c310fd2555c6faca1f980f00b161eadb089023gstein

b47464a901075041e800be2de098a603923fa4f9gsteinint ap_max_daemons_limit = -1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic char ap_coredump_dir[MAX_STRING_LEN];

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic ap_file_t *pipe_of_death_in = NULL;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic ap_file_t *pipe_of_death_out = NULL;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic pthread_mutex_t pipe_of_death_mutex;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

98e9c4a310bb623ff788680f88b6bd200ff36a24wrowe

f4c310fd2555c6faca1f980f00b161eadb089023gsteinserver_rec *ap_server_conf;

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm

f4c310fd2555c6faca1f980f00b161eadb089023gstein

1ccd992d37d62c8cb2056126f2234f64ec189bfddougmstatic int one_process = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

b47464a901075041e800be2de098a603923fa4f9gstein#ifdef DEBUG_SIGSTOP

f4c310fd2555c6faca1f980f00b161eadb089023gsteinint raise_sigstop_flags;

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic ap_pool_t *pconf; /* Pool for config stuff */

1ccd992d37d62c8cb2056126f2234f64ec189bfddougmstatic ap_pool_t *pchild; /* Pool for httpd child stuff */

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic ap_pool_t *thread_pool_parent; /* Parent of per-thread pools */

b47464a901075041e800be2de098a603923fa4f9gsteinstatic pthread_mutex_t thread_pool_parent_mutex;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

b47464a901075041e800be2de098a603923fa4f9gsteinstatic int child_num;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int my_pid; /* Linux getpid() doesn't work except in main thread. Use

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int worker_thread_count;

b47464a901075041e800be2de098a603923fa4f9gsteinstatic pthread_mutex_t worker_thread_count_mutex;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int worker_thread_free_ids[HARD_THREAD_LIMIT];

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic pthread_attr_t worker_thread_attr;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

1ccd992d37d62c8cb2056126f2234f64ec189bfddougmstatic int idle_thread_count;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic pthread_mutex_t idle_thread_count_mutex;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef NO_SERIALIZED_ACCEPT

f4c310fd2555c6faca1f980f00b161eadb089023gstein#define SAFE_ACCEPT(stmt) APR_SUCCESS

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm#else

de18a9e85398b9c79c422f578633ed56c2747bbbgstein#define SAFE_ACCEPT(stmt) (stmt)

de18a9e85398b9c79c422f578633ed56c2747bbbgsteinstatic ap_lock_t *process_accept_mutex;

de18a9e85398b9c79c422f578633ed56c2747bbbgstein#endif /* NO_SERIALIZED_ACCEPT */

de18a9e85398b9c79c422f578633ed56c2747bbbgsteinstatic const char *lock_fname;

de18a9e85398b9c79c422f578633ed56c2747bbbgsteinstatic pthread_mutex_t thread_accept_mutex = PTHREAD_MUTEX_INITIALIZER;

de18a9e85398b9c79c422f578633ed56c2747bbbgstein

de18a9e85398b9c79c422f578633ed56c2747bbbgsteinAPI_EXPORT(const server_rec *) ap_get_server_conf(void)

de18a9e85398b9c79c422f578633ed56c2747bbbgstein{

de18a9e85398b9c79c422f578633ed56c2747bbbgstein return (ap_server_conf);

de18a9e85398b9c79c422f578633ed56c2747bbbgstein}

de18a9e85398b9c79c422f578633ed56c2747bbbgstein

de18a9e85398b9c79c422f578633ed56c2747bbbgsteinAPI_EXPORT(int) ap_get_max_daemons(void)

de18a9e85398b9c79c422f578633ed56c2747bbbgstein{

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm return ap_max_daemons_limit;

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic void clean_child_exit(int code)

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm{

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (pchild) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_destroy_pool(pchild);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm exit(code);

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic void sig_coredump(int sig)

de18a9e85398b9c79c422f578633ed56c2747bbbgstein{

de18a9e85398b9c79c422f578633ed56c2747bbbgstein chdir(ap_coredump_dir);

9f18c80269be35c0b5653e84b0db0a24044722c4gstein ap_signal(sig, SIG_DFL);

9f18c80269be35c0b5653e84b0db0a24044722c4gstein kill(getpid(), sig);

000397350b42c6266351bd618fa07df929fa7c79gstein /* At this point we've got sig blocked, because we're still inside

000397350b42c6266351bd618fa07df929fa7c79gstein}

000397350b42c6266351bd618fa07df929fa7c79gstein

000397350b42c6266351bd618fa07df929fa7c79gsteinstatic void just_die(int sig)

000397350b42c6266351bd618fa07df929fa7c79gstein{

000397350b42c6266351bd618fa07df929fa7c79gstein clean_child_exit(0);

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm

10a4cdd68ef1ca0e54af296fe1d08ac00150c90bwrowestatic int volatile shutdown_pending;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int volatile restart_pending;

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int volatile is_graceful;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

9f18c80269be35c0b5653e84b0db0a24044722c4gstein

9f18c80269be35c0b5653e84b0db0a24044722c4gsteinvoid ap_start_shutdown(void)

709df1e1c2e1710570f8cb4209497e88662829c3gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (shutdown_pending == 1) {

eb2abb2d3f87f28e99bcb282b91e432822b4d9b4gstein /* Um, is this _probably_ not an error, if the user has

f4c310fd2555c6faca1f980f00b161eadb089023gstein return;

eb2abb2d3f87f28e99bcb282b91e432822b4d9b4gstein }

eb2abb2d3f87f28e99bcb282b91e432822b4d9b4gstein shutdown_pending = 1;

eb2abb2d3f87f28e99bcb282b91e432822b4d9b4gstein}

709df1e1c2e1710570f8cb4209497e88662829c3gstein

709df1e1c2e1710570f8cb4209497e88662829c3gsteinvoid ap_start_restart(int graceful)

709df1e1c2e1710570f8cb4209497e88662829c3gstein{

eb2abb2d3f87f28e99bcb282b91e432822b4d9b4gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (restart_pending == 1) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* Probably not an error - don't bother reporting it */

7281ea331999debdc337b02ce37a3169e0e033a2gstein return;

7281ea331999debdc337b02ce37a3169e0e033a2gstein }

7281ea331999debdc337b02ce37a3169e0e033a2gstein restart_pending = 1;

7281ea331999debdc337b02ce37a3169e0e033a2gstein is_graceful = graceful;

7281ea331999debdc337b02ce37a3169e0e033a2gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

000397350b42c6266351bd618fa07df929fa7c79gsteinstatic void sig_term(int sig)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

000397350b42c6266351bd618fa07df929fa7c79gstein ap_start_shutdown();

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic void restart(int sig)

000397350b42c6266351bd618fa07df929fa7c79gstein{

9f18c80269be35c0b5653e84b0db0a24044722c4gstein#ifndef WIN32

000397350b42c6266351bd618fa07df929fa7c79gstein ap_start_restart(sig == SIGWINCH);

000397350b42c6266351bd618fa07df929fa7c79gstein#else

9f18c80269be35c0b5653e84b0db0a24044722c4gstein ap_start_restart(1);

9f18c80269be35c0b5653e84b0db0a24044722c4gstein#endif

000397350b42c6266351bd618fa07df929fa7c79gstein}

000397350b42c6266351bd618fa07df929fa7c79gstein

9f18c80269be35c0b5653e84b0db0a24044722c4gsteinstatic void set_signals(void)

000397350b42c6266351bd618fa07df929fa7c79gstein{

eb2abb2d3f87f28e99bcb282b91e432822b4d9b4gstein#ifndef NO_USE_SIGACTION

9f18c80269be35c0b5653e84b0db0a24044722c4gstein struct sigaction sa;

9f18c80269be35c0b5653e84b0db0a24044722c4gstein

9f18c80269be35c0b5653e84b0db0a24044722c4gstein sigemptyset(&sa.sa_mask);

9f18c80269be35c0b5653e84b0db0a24044722c4gstein sa.sa_flags = 0;

9f18c80269be35c0b5653e84b0db0a24044722c4gstein

9f18c80269be35c0b5653e84b0db0a24044722c4gstein if (!one_process) {

9f18c80269be35c0b5653e84b0db0a24044722c4gstein sa.sa_handler = sig_coredump;

9f18c80269be35c0b5653e84b0db0a24044722c4gstein#if defined(SA_ONESHOT)

9f18c80269be35c0b5653e84b0db0a24044722c4gstein sa.sa_flags = SA_ONESHOT;

9f18c80269be35c0b5653e84b0db0a24044722c4gstein#elif defined(SA_RESETHAND)

9f18c80269be35c0b5653e84b0db0a24044722c4gstein sa.sa_flags = SA_RESETHAND;

eb2abb2d3f87f28e99bcb282b91e432822b4d9b4gstein#endif

000397350b42c6266351bd618fa07df929fa7c79gstein if (sigaction(SIGSEGV, &sa, NULL) < 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGSEGV)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGBUS

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (sigaction(SIGBUS, &sa, NULL) < 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGBUS)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGABORT

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (sigaction(SIGABORT, &sa, NULL) < 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGABORT)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGABRT

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (sigaction(SIGABRT, &sa, NULL) < 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGABRT)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGILL

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (sigaction(SIGILL, &sa, NULL) < 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGILL)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein sa.sa_flags = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein sa.sa_handler = sig_term;

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (sigaction(SIGTERM, &sa, NULL) < 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGTERM)");

26250b0077972bf21b6d8a8d23772a4cf53f9477gstein#ifdef SIGINT

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (sigaction(SIGINT, &sa, NULL) < 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGINT)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGXCPU

f4c310fd2555c6faca1f980f00b161eadb089023gstein sa.sa_handler = SIG_DFL;

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (sigaction(SIGXCPU, &sa, NULL) < 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGXCPU)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGXFSZ

f4c310fd2555c6faca1f980f00b161eadb089023gstein sa.sa_handler = SIG_DFL;

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (sigaction(SIGXFSZ, &sa, NULL) < 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGXFSZ)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGPIPE

26250b0077972bf21b6d8a8d23772a4cf53f9477gstein sa.sa_handler = SIG_IGN;

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (sigaction(SIGPIPE, &sa, NULL) < 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGPIPE)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* we want to ignore HUPs and WINCH while we're busy processing one */

f4c310fd2555c6faca1f980f00b161eadb089023gstein sigaddset(&sa.sa_mask, SIGHUP);

f4c310fd2555c6faca1f980f00b161eadb089023gstein sigaddset(&sa.sa_mask, SIGWINCH);

f4c310fd2555c6faca1f980f00b161eadb089023gstein sa.sa_handler = restart;

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (sigaction(SIGHUP, &sa, NULL) < 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGHUP)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (sigaction(SIGWINCH, &sa, NULL) < 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGWINCH)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein#else

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (!one_process) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_signal(SIGSEGV, sig_coredump);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGBUS

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_signal(SIGBUS, sig_coredump);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif /* SIGBUS */

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGABORT

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_signal(SIGABORT, sig_coredump);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif /* SIGABORT */

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGABRT

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_signal(SIGABRT, sig_coredump);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif /* SIGABRT */

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGILL

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_signal(SIGILL, sig_coredump);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif /* SIGILL */

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGXCPU

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_signal(SIGXCPU, SIG_DFL);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif /* SIGXCPU */

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGXFSZ

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_signal(SIGXFSZ, SIG_DFL);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif /* SIGXFSZ */

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_signal(SIGTERM, sig_term);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGHUP

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_signal(SIGHUP, restart);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif /* SIGHUP */

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGWINCH

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_signal(SIGWINCH, restart);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif /* SIGWINCH */

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGPIPE

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_signal(SIGPIPE, SIG_IGN);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif /* SIGPIPE */

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic void process_child_status(ap_proc_t *pid, ap_wait_t status)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm /* Child died... if it died due to a fatal error,

f4c310fd2555c6faca1f980f00b161eadb089023gstein if ((WIFEXITED(status)) &&

f4c310fd2555c6faca1f980f00b161eadb089023gstein WEXITSTATUS(status) == APEXIT_CHILDFATAL) {

26250b0077972bf21b6d8a8d23772a4cf53f9477gstein ap_log_error(APLOG_MARK, APLOG_ALERT|APLOG_NOERRNO, 0, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "Child %ld returned a Fatal error... \n"

f4c310fd2555c6faca1f980f00b161eadb089023gstein "Apache is exiting!",

f4c310fd2555c6faca1f980f00b161eadb089023gstein (long)pid->pid);

f4c310fd2555c6faca1f980f00b161eadb089023gstein exit(APEXIT_CHILDFATAL);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (WIFSIGNALED(status)) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein switch (WTERMSIG(status)) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein case SIGTERM:

252e2478cb56afb5ca8585b50bc2ffb780d2efb6gstein case SIGHUP:

f4c310fd2555c6faca1f980f00b161eadb089023gstein case SIGUSR1:

f4c310fd2555c6faca1f980f00b161eadb089023gstein case SIGKILL:

f4c310fd2555c6faca1f980f00b161eadb089023gstein break;

f4c310fd2555c6faca1f980f00b161eadb089023gstein default:

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm#ifdef SYS_SIGLIST

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef WCOREDUMP

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (WCOREDUMP(status)) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0,

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "child pid %ld exit signal %s (%d), "

f4c310fd2555c6faca1f980f00b161eadb089023gstein "possible coredump in %s",

f4c310fd2555c6faca1f980f00b161eadb089023gstein (long)pid->pid, (WTERMSIG(status) >= NumSIG) ? "" :

f4c310fd2555c6faca1f980f00b161eadb089023gstein SYS_SIGLIST[WTERMSIG(status)], WTERMSIG(status),

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_coredump_dir);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein else {

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0,

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "child pid %ld exit signal %s (%d)",

f4c310fd2555c6faca1f980f00b161eadb089023gstein (long)pid->pid,

f4c310fd2555c6faca1f980f00b161eadb089023gstein SYS_SIGLIST[WTERMSIG(status)], WTERMSIG(status));

252e2478cb56afb5ca8585b50bc2ffb780d2efb6gstein#ifdef WCOREDUMP

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein#else

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0,

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "child pid %ld exit signal %d",

f4c310fd2555c6faca1f980f00b161eadb089023gstein (long)pid->pid, WTERMSIG(status));

252e2478cb56afb5ca8585b50bc2ffb780d2efb6gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int setup_listeners(server_rec *s)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_listen_rec *lr;

f4c310fd2555c6faca1f980f00b161eadb089023gstein int num_listeners = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (ap_listen_open(s->process, s->port)) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein return 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein for (lr = ap_listeners; lr; lr = lr->next) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein num_listeners++;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein return num_listeners;

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

d839a9822ee53ce00da24c15f2d9fe054233d342gstein

d839a9822ee53ce00da24c15f2d9fe054233d342gstein

d839a9822ee53ce00da24c15f2d9fe054233d342gstein#if defined(TCP_NODELAY) && !defined(MPE) && !defined(TPF)

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic void sock_disable_nagle(int s)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* The Nagle algorithm says that we should delay sending partial

f4c310fd2555c6faca1f980f00b161eadb089023gstein int just_say_no = 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (setsockopt(s, IPPROTO_TCP, TCP_NODELAY, (char *) &just_say_no,

f4c310fd2555c6faca1f980f00b161eadb089023gstein sizeof(int)) < 0) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "setsockopt: (TCP_NODELAY)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein#else

f4c310fd2555c6faca1f980f00b161eadb089023gstein#define sock_disable_nagle(s) /* NOOP */

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinint ap_graceful_stop_signalled(void)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* XXX - Does this really work? - Manoj */

f4c310fd2555c6faca1f980f00b161eadb089023gstein return is_graceful;

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic void process_socket(ap_pool_t *p, ap_socket_t *sock, long conn_id)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein BUFF *conn_io;

f4c310fd2555c6faca1f980f00b161eadb089023gstein conn_rec *current_conn;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_iol *iol;

f4c310fd2555c6faca1f980f00b161eadb089023gstein int csd;

f5ec9b038bb9db933072ba2c0a8e7bb2a3cedbdagstein ap_status_t rv;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if ((rv = ap_get_os_sock(&csd, sock)) != APR_SUCCESS) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_ERR, rv, NULL, "ap_get_os_sock");

f5ec9b038bb9db933072ba2c0a8e7bb2a3cedbdagstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (csd >= FD_SETSIZE) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING, 0, NULL,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "new file descriptor %d is too large; you probably need "

f4c310fd2555c6faca1f980f00b161eadb089023gstein "to rebuild Apache with a larger FD_SETSIZE "

f4c310fd2555c6faca1f980f00b161eadb089023gstein "(currently %d)",

f4c310fd2555c6faca1f980f00b161eadb089023gstein csd, FD_SETSIZE);

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_close_socket(sock);

f4c310fd2555c6faca1f980f00b161eadb089023gstein return;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein sock_disable_nagle(csd);

f4c310fd2555c6faca1f980f00b161eadb089023gstein iol = ap_iol_attach_socket(sock);

f4c310fd2555c6faca1f980f00b161eadb089023gstein conn_io = ap_bcreate(p, B_RDWR);

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_bpush_iol(conn_io, iol);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein current_conn = ap_new_apr_connection(p, ap_server_conf, conn_io, sock,

f4c310fd2555c6faca1f980f00b161eadb089023gstein conn_id);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_process_connection(current_conn);

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_lingering_close(current_conn);

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic void *worker_thread(void *);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

1ccd992d37d62c8cb2056126f2234f64ec189bfddougmstatic int start_thread(void)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_t thread;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_lock(&worker_thread_count_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (worker_thread_count < max_threads) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (pthread_create(&thread, &worker_thread_attr, worker_thread,

f4c310fd2555c6faca1f980f00b161eadb089023gstein &worker_thread_free_ids[worker_thread_count])) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_ALERT, errno, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "pthread_create: unable to create worker thread");

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* In case system resources are maxxed out, we don't want

50bd75672ef114fb839dd9643c192b432fdf344cgstein sleep(10);

50bd75672ef114fb839dd9643c192b432fdf344cgstein workers_may_exit = 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_unlock(&worker_thread_count_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein return 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

50bd75672ef114fb839dd9643c192b432fdf344cgstein else {

50bd75672ef114fb839dd9643c192b432fdf344cgstein worker_thread_count++;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein else {

f4c310fd2555c6faca1f980f00b161eadb089023gstein static int reported = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (!reported) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "server reached MaxThreadsPerChild setting, consider raising the"

f4c310fd2555c6faca1f980f00b161eadb089023gstein " MaxThreadsPerChild or NumServers settings");

f4c310fd2555c6faca1f980f00b161eadb089023gstein reported = 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein pthread_mutex_unlock(&worker_thread_count_mutex);

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein return 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_unlock(&worker_thread_count_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein return 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

50bd75672ef114fb839dd9643c192b432fdf344cgsteinstatic void check_pipe_of_death(void)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_lock(&pipe_of_death_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (!workers_may_exit) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein int ret;

f4c310fd2555c6faca1f980f00b161eadb089023gstein char pipe_read_char;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_ssize_t n = 1;

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm

f4c310fd2555c6faca1f980f00b161eadb089023gstein ret = ap_recv(listenfds[0], &pipe_read_char, &n);

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (ap_canonical_error(ret) == APR_EAGAIN) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* It lost the lottery. It must continue to suffer

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein else {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* It won the lottery (or something else is very

f4c310fd2555c6faca1f980f00b161eadb089023gstein workers_may_exit = 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_unlock(&pipe_of_death_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f5ec9b038bb9db933072ba2c0a8e7bb2a3cedbdagsteinstatic void *worker_thread(void *arg)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_socket_t *csd = NULL;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_pool_t *tpool; /* Pool for this thread */

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_pool_t *ptrans; /* Pool for per-transaction stuff */

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_socket_t *sd = NULL;

f4c310fd2555c6faca1f980f00b161eadb089023gstein int srv;

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm int curr_pollfd, last_pollfd = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein int thread_just_started = 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein int thread_num = *((int *) arg);

f4c310fd2555c6faca1f980f00b161eadb089023gstein long conn_id = child_num * HARD_THREAD_LIMIT + thread_num;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_pollfd_t *pollset;

f4c310fd2555c6faca1f980f00b161eadb089023gstein int n;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_status_t rv;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_lock(&thread_pool_parent_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_create_pool(&tpool, thread_pool_parent);

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_unlock(&thread_pool_parent_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_create_pool(&ptrans, tpool);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_setup_poll(&pollset, num_listenfds+1, tpool);

f4c310fd2555c6faca1f980f00b161eadb089023gstein for(n=0 ; n <= num_listenfds ; ++n)

f5ec9b038bb9db933072ba2c0a8e7bb2a3cedbdagstein ap_add_poll_socket(pollset, listenfds[n], APR_POLLIN);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein while (!workers_may_exit) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein workers_may_exit |= (max_requests_per_child != 0) && (requests_this_child <= 0);

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (workers_may_exit) break;

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein if (!thread_just_started) {

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein pthread_mutex_lock(&idle_thread_count_mutex);

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein if (idle_thread_count < max_spare_threads) {

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein idle_thread_count++;

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein pthread_mutex_unlock(&idle_thread_count_mutex);

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein }

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein else {

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_unlock(&idle_thread_count_mutex);

ba8574a7fe6f1c3405982bb856591b5f13fe205agstein break;

5a47cad1aef57039cd47eb34ebbc2959c610f326gstein }

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein }

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein else {

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein thread_just_started = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

ba8574a7fe6f1c3405982bb856591b5f13fe205agstein pthread_mutex_lock(&thread_accept_mutex);

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm if (workers_may_exit) {

5a47cad1aef57039cd47eb34ebbc2959c610f326gstein pthread_mutex_unlock(&thread_accept_mutex);

5a47cad1aef57039cd47eb34ebbc2959c610f326gstein break;

5a47cad1aef57039cd47eb34ebbc2959c610f326gstein }

5a47cad1aef57039cd47eb34ebbc2959c610f326gstein if ((rv = SAFE_ACCEPT(ap_lock(process_accept_mutex)))

f4c310fd2555c6faca1f980f00b161eadb089023gstein != APR_SUCCESS) {

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein ap_log_error(APLOG_MARK, APLOG_EMERG, rv, ap_server_conf,

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein "ap_lock failed. Attempting to shutdown "

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein "process gracefully.");

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein workers_may_exit = 1;

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein }

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein while (!workers_may_exit) {

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein ap_int16_t event;

9f18c80269be35c0b5653e84b0db0a24044722c4gstein srv = ap_poll(pollset, &n, -1);

9f18c80269be35c0b5653e84b0db0a24044722c4gstein

9f18c80269be35c0b5653e84b0db0a24044722c4gstein if (srv != APR_SUCCESS) {

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein if (ap_canonical_error(srv) == APR_EINTR) {

7281ea331999debdc337b02ce37a3169e0e033a2gstein continue;

9f18c80269be35c0b5653e84b0db0a24044722c4gstein }

5a47cad1aef57039cd47eb34ebbc2959c610f326gstein

5a47cad1aef57039cd47eb34ebbc2959c610f326gstein /* ap_poll() will only return errors in catastrophic

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_ERR, srv, (const server_rec *)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_get_server_conf(), "ap_poll: (listen)");

5a47cad1aef57039cd47eb34ebbc2959c610f326gstein workers_may_exit = 1;

5a47cad1aef57039cd47eb34ebbc2959c610f326gstein }

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein if (workers_may_exit) break;

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein ap_get_revents(&event, listenfds[0], pollset);

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein if (event & APR_POLLIN) {

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein /* A process got a signal on the shutdown pipe. Check if we're

f4c310fd2555c6faca1f980f00b161eadb089023gstein check_pipe_of_death();

f4c310fd2555c6faca1f980f00b161eadb089023gstein continue;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (num_listenfds == 1) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein sd = ap_listeners->sd;

f4c310fd2555c6faca1f980f00b161eadb089023gstein goto got_fd;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein else {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* find a listener */

f4c310fd2555c6faca1f980f00b161eadb089023gstein curr_pollfd = last_pollfd;

f4c310fd2555c6faca1f980f00b161eadb089023gstein do {

f4c310fd2555c6faca1f980f00b161eadb089023gstein curr_pollfd++;

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (curr_pollfd > num_listenfds) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein curr_pollfd = 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* XXX: Should we check for POLLERR? */

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_get_revents(&event, listenfds[curr_pollfd], pollset);

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (event & APR_POLLIN) {

26250b0077972bf21b6d8a8d23772a4cf53f9477gstein last_pollfd = curr_pollfd;

26250b0077972bf21b6d8a8d23772a4cf53f9477gstein sd = listenfds[curr_pollfd];

f4c310fd2555c6faca1f980f00b161eadb089023gstein goto got_fd;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein } while (curr_pollfd != last_pollfd);

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm }

26250b0077972bf21b6d8a8d23772a4cf53f9477gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein got_fd:

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (!workers_may_exit) {

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm if ((rv = ap_accept(&csd, sd, ptrans)) != APR_SUCCESS) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf, "ap_accept");

26250b0077972bf21b6d8a8d23772a4cf53f9477gstein }

26250b0077972bf21b6d8a8d23772a4cf53f9477gstein if ((rv = SAFE_ACCEPT(ap_unlock(process_accept_mutex)))

f4c310fd2555c6faca1f980f00b161eadb089023gstein != APR_SUCCESS) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_EMERG, rv, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "ap_unlock failed. Attempting to shutdown "

f4c310fd2555c6faca1f980f00b161eadb089023gstein "process gracefully.");

f4c310fd2555c6faca1f980f00b161eadb089023gstein workers_may_exit = 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_unlock(&thread_accept_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_lock(&idle_thread_count_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (idle_thread_count > min_spare_threads) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein idle_thread_count--;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein else {

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (!start_thread()) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein idle_thread_count--;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_unlock(&idle_thread_count_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein process_socket(ptrans, csd, conn_id);

f4c310fd2555c6faca1f980f00b161eadb089023gstein requests_this_child--;

f4c310fd2555c6faca1f980f00b161eadb089023gstein } else {

f4c310fd2555c6faca1f980f00b161eadb089023gstein if ((rv = SAFE_ACCEPT(ap_unlock(process_accept_mutex)))

f4c310fd2555c6faca1f980f00b161eadb089023gstein != APR_SUCCESS) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_EMERG, rv, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "ap_unlock failed. Attempting to shutdown "

f4c310fd2555c6faca1f980f00b161eadb089023gstein "process gracefully.");

f4c310fd2555c6faca1f980f00b161eadb089023gstein workers_may_exit = 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein pthread_mutex_unlock(&thread_accept_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_lock(&idle_thread_count_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein idle_thread_count--;

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_unlock(&idle_thread_count_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein break;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_clear_pool(ptrans);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_lock(&thread_pool_parent_mutex);

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein ap_destroy_pool(tpool);

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein pthread_mutex_unlock(&thread_pool_parent_mutex);

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein pthread_mutex_lock(&worker_thread_count_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein worker_thread_count--;

f4c310fd2555c6faca1f980f00b161eadb089023gstein worker_thread_free_ids[worker_thread_count] = thread_num;

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (worker_thread_count == 0) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* All the threads have exited, now finish the shutdown process

f4c310fd2555c6faca1f980f00b161eadb089023gstein kill(my_pid, SIGTERM);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_unlock(&worker_thread_count_mutex);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein return NULL;

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic void child_main(int child_num_arg)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein sigset_t sig_mask;

f4c310fd2555c6faca1f980f00b161eadb089023gstein int signal_received;

f4c310fd2555c6faca1f980f00b161eadb089023gstein int i;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_listen_rec *lr;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_status_t rv;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein my_pid = getpid();

f4c310fd2555c6faca1f980f00b161eadb089023gstein child_num = child_num_arg;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_create_pool(&pchild, pconf);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /*stuff to do before we switch id's, so we have permissions.*/

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein rv = SAFE_ACCEPT(ap_child_init_lock(&process_accept_mutex, lock_fname,

f4c310fd2555c6faca1f980f00b161eadb089023gstein pchild));

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (rv != APR_SUCCESS) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_EMERG, rv, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "Couldn't initialize cross-process lock in child");

f4c310fd2555c6faca1f980f00b161eadb089023gstein clean_child_exit(APEXIT_CHILDFATAL);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (unixd_setup_child()) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein clean_child_exit(APEXIT_CHILDFATAL);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_child_init_hook(pchild, ap_server_conf);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /*done with init critical section */

f958dac1550254a59b45f4655138bb34dad5e76egstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* All threads should mask signals out, accoring to sigwait(2) man page */

f4c310fd2555c6faca1f980f00b161eadb089023gstein sigfillset(&sig_mask);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef SIGPROCMASK_SETS_THREAD_MASK

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (sigprocmask(SIG_SETMASK, &sig_mask, NULL) != 0) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_ALERT, errno, ap_server_conf, "sigprocmask");

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein#else

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (pthread_sigmask(SIG_SETMASK, &sig_mask, NULL) != 0) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_ALERT, errno, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "pthread_sigmask");

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein requests_this_child = max_requests_per_child;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* Set up the pollfd array */

f4c310fd2555c6faca1f980f00b161eadb089023gstein listenfds = ap_pcalloc(pchild, sizeof(*listenfds) * (num_listenfds + 1));

f4c310fd2555c6faca1f980f00b161eadb089023gstein#if APR_FILES_AS_SOCKETS

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_socket_from_file(&listenfds[0], pipe_of_death_in);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein for (lr = ap_listeners, i = 1; i <= num_listenfds; lr = lr->next, ++i)

f4c310fd2555c6faca1f980f00b161eadb089023gstein listenfds[i]=lr->sd;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* Setup worker threads */

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (threads_to_start > max_threads) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein threads_to_start = max_threads;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein idle_thread_count = threads_to_start;

f4c310fd2555c6faca1f980f00b161eadb089023gstein worker_thread_count = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein for (i = 0; i < max_threads; i++) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein worker_thread_free_ids[i] = i;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_create_pool(&thread_pool_parent, pchild);

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_init(&thread_pool_parent_mutex, NULL);

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_init(&idle_thread_count_mutex, NULL);

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_init(&worker_thread_count_mutex, NULL);

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_mutex_init(&pipe_of_death_mutex, NULL);

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_attr_init(&worker_thread_attr);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef PTHREAD_ATTR_SETDETACHSTATE_ARG2_ADDR

f4c310fd2555c6faca1f980f00b161eadb089023gstein {

f4c310fd2555c6faca1f980f00b161eadb089023gstein int on = 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_attr_setdetachstate(&worker_thread_attr, &on);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein#else

f4c310fd2555c6faca1f980f00b161eadb089023gstein pthread_attr_setdetachstate(&worker_thread_attr, PTHREAD_CREATE_DETACHED);

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm /* We are creating worker threads right now */

f4c310fd2555c6faca1f980f00b161eadb089023gstein for (i=0; i < threads_to_start; i++) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* start_thread shouldn't fail here */

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (!start_thread()) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein break;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* This thread will be the one responsible for handling signals */

f4c310fd2555c6faca1f980f00b161eadb089023gstein sigemptyset(&sig_mask);

f4c310fd2555c6faca1f980f00b161eadb089023gstein sigaddset(&sig_mask, SIGTERM);

f4c310fd2555c6faca1f980f00b161eadb089023gstein sigaddset(&sig_mask, SIGINT);

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_sigwait(&sig_mask, &signal_received);

f4c310fd2555c6faca1f980f00b161eadb089023gstein switch (signal_received) {

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm case SIGTERM:

f4c310fd2555c6faca1f980f00b161eadb089023gstein case SIGINT:

f4c310fd2555c6faca1f980f00b161eadb089023gstein just_die(signal_received);

f4c310fd2555c6faca1f980f00b161eadb089023gstein break;

f4c310fd2555c6faca1f980f00b161eadb089023gstein default:

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_ALERT, errno, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "received impossible signal: %d", signal_received);

f4c310fd2555c6faca1f980f00b161eadb089023gstein just_die(SIGTERM);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int make_child(server_rec *s, int slot, time_t now)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein int pid;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (slot + 1 > ap_max_daemons_limit) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_max_daemons_limit = slot + 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm if (one_process) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein set_signals();

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_child_table[slot].pid = getpid();

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_child_table[slot].status = SERVER_ALIVE;

f4c310fd2555c6faca1f980f00b161eadb089023gstein child_main(slot);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if ((pid = fork()) == -1) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_ERR, errno, s,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "fork: Unable to fork new process");

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* In case system resources are maxxed out, we don't want

f4c310fd2555c6faca1f980f00b161eadb089023gstein sleep(10);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein return -1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (!pid) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef AIX_BIND_PROCESSOR

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* By default, AIX binds to a single processor. This bit unbinds

f4c310fd2555c6faca1f980f00b161eadb089023gstein#include <sys/processor.h>

f4c310fd2555c6faca1f980f00b161eadb089023gstein int status = bindprocessor(BINDPROCESS, (int)getpid(),

f4c310fd2555c6faca1f980f00b161eadb089023gstein PROCESSOR_CLASS_ANY);

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (status != OK)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING, errno,

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_server_conf, "processor unbind failed %d", status);

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein RAISE_SIGSTOP(MAKE_CHILD);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* XXX - For an unthreaded server, a signal handler will be necessary

f4c310fd2555c6faca1f980f00b161eadb089023gstein child_main(slot);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein return 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* else */

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_child_table[slot].pid = pid;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_child_table[slot].status = SERVER_ALIVE;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein return 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int startup_children(int number_to_start)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein int i;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein for (i = 0; number_to_start && i < num_daemons; ++i) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (ap_child_table[i].status != SERVER_DEAD) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein continue;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (make_child(ap_server_conf, i, 0) < 0) {

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein break;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein --number_to_start;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein return number_to_start;

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int spawn_rate = 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifndef MAX_SPAWN_RATE

f4c310fd2555c6faca1f980f00b161eadb089023gstein#define MAX_SPAWN_RATE (32)

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic int hold_off_on_exponential_spawning;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

83719c22db4a6d0575bb4f7f34382d7b185a6f74gsteinstatic void perform_child_maintenance(void)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein int i;

f4c310fd2555c6faca1f980f00b161eadb089023gstein time_t now = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein int free_length;

f4c310fd2555c6faca1f980f00b161eadb089023gstein int free_slots[MAX_SPAWN_RATE];

f4c310fd2555c6faca1f980f00b161eadb089023gstein int last_non_dead = -1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* initialize the free_list */

f4c310fd2555c6faca1f980f00b161eadb089023gstein free_length = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein for (i = 0; i < num_daemons; ++i) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (ap_child_table[i].status == SERVER_DEAD) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (free_length < spawn_rate) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein free_slots[free_length] = i;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ++free_length;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein else {

f4c310fd2555c6faca1f980f00b161eadb089023gstein last_non_dead = i;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (i >= ap_max_daemons_limit && free_length >= spawn_rate) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein break;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm }

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_max_daemons_limit = last_non_dead + 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (free_length > 0) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein for (i = 0; i < free_length; ++i) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein make_child(ap_server_conf, free_slots[i], now);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* the next time around we want to spawn twice as many if this

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (hold_off_on_exponential_spawning) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein --hold_off_on_exponential_spawning;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein else if (spawn_rate < MAX_SPAWN_RATE) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein spawn_rate *= 2;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein else {

f4c310fd2555c6faca1f980f00b161eadb089023gstein spawn_rate = 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic void server_main_loop(int remaining_children_to_start)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein int child_slot;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_wait_t status;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_proc_t pid;

f4c310fd2555c6faca1f980f00b161eadb089023gstein int i;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein while (!restart_pending && !shutdown_pending) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_wait_or_timeout(&status, &pid, pconf);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (pid.pid != -1) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein process_child_status(&pid, status);

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* non-fatal death... note that it's gone in the child table and

f4c310fd2555c6faca1f980f00b161eadb089023gstein child_slot = -1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein for (i = 0; i < ap_max_daemons_limit; ++i) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (ap_child_table[i].pid == pid.pid) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein int j;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein child_slot = i;

f4c310fd2555c6faca1f980f00b161eadb089023gstein for (j = 0; j < HARD_THREAD_LIMIT; j++) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_dexter_force_reset_connection_status(i * HARD_THREAD_LIMIT + j);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein break;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (child_slot >= 0) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_child_table[child_slot].status = SERVER_DEAD;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (remaining_children_to_start

f4c310fd2555c6faca1f980f00b161eadb089023gstein && child_slot < num_daemons) {

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm /* we're still doing a 1-for-1 replacement of dead

f4c310fd2555c6faca1f980f00b161eadb089023gstein make_child(ap_server_conf, child_slot, time(NULL));

f4c310fd2555c6faca1f980f00b161eadb089023gstein --remaining_children_to_start;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein#ifdef APR_HAS_OTHER_CHILD

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein else if (ap_reap_other_child(&pid, status) == 0) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* handled */

f4c310fd2555c6faca1f980f00b161eadb089023gstein#endif

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein else if (is_graceful) {

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm /* Great, we've probably just lost a slot in the

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING, 0,

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "long lost child came home! (pid %ld)",

f4c310fd2555c6faca1f980f00b161eadb089023gstein (long)pid.pid);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* Don't perform idle maintenance when a child dies,

f4c310fd2555c6faca1f980f00b161eadb089023gstein continue;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein else if (remaining_children_to_start) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* we hit a 1 second timeout in which none of the previous

f4c310fd2555c6faca1f980f00b161eadb089023gstein remaining_children_to_start = \

f4c310fd2555c6faca1f980f00b161eadb089023gstein startup_children(remaining_children_to_start);

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* In any event we really shouldn't do the code below because

f4c310fd2555c6faca1f980f00b161eadb089023gstein continue;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein perform_child_maintenance();

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinint ap_mpm_run(ap_pool_t *_pconf, ap_pool_t *plog, server_rec *s)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein int remaining_children_to_start;

f4c310fd2555c6faca1f980f00b161eadb089023gstein int i;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_status_t rv;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_ssize_t one = 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein pconf = _pconf;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_server_conf = s;

f4c310fd2555c6faca1f980f00b161eadb089023gstein if ((rv = ap_create_pipe(&pipe_of_death_in, &pipe_of_death_out, pconf))

f4c310fd2555c6faca1f980f00b161eadb089023gstein != APR_SUCCESS) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_ERR, rv,

f4c310fd2555c6faca1f980f00b161eadb089023gstein (const server_rec*) ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "ap_create_pipe (pipe_of_death)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein exit(1);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein if ((rv = ap_set_pipe_timeout(pipe_of_death_in, 0)) != APR_SUCCESS) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_ERR, rv,

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein (const server_rec*) ap_server_conf,

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein "ap_set_pipe_timeout (pipe_of_death)");

f4c310fd2555c6faca1f980f00b161eadb089023gstein exit(1);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_server_conf = s;

f4c310fd2555c6faca1f980f00b161eadb089023gstein if ((num_listenfds = setup_listeners(ap_server_conf)) < 1) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* XXX: hey, what's the right way for the mpm to indicate a fatal error? */

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ALERT, 0, s,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "no listening sockets available, shutting down");

f4c310fd2555c6faca1f980f00b161eadb089023gstein return 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_pid(pconf, ap_pid_fname);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* Initialize cross-process accept lock */

f4c310fd2555c6faca1f980f00b161eadb089023gstein lock_fname = ap_psprintf(_pconf, "%s.%lu",

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_server_root_relative(_pconf, lock_fname),

f4c310fd2555c6faca1f980f00b161eadb089023gstein my_pid);

f4c310fd2555c6faca1f980f00b161eadb089023gstein rv = SAFE_ACCEPT(ap_create_lock(&process_accept_mutex, APR_MUTEX,

f4c310fd2555c6faca1f980f00b161eadb089023gstein APR_CROSS_PROCESS, lock_fname, _pconf));

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (rv != APR_SUCCESS) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "Couldn't create cross-process lock");

f4c310fd2555c6faca1f980f00b161eadb089023gstein return 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (!is_graceful) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein reinit_scoreboard(pconf);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* Initialize the child table */

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (!is_graceful) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein for (i = 0; i < HARD_SERVER_LIMIT; i++) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_child_table[i].status = SERVER_DEAD;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein set_signals();

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* If we're doing a graceful_restart then we're going to see a lot

f4c310fd2555c6faca1f980f00b161eadb089023gstein remaining_children_to_start = num_daemons;

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (!is_graceful) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein remaining_children_to_start = \

f4c310fd2555c6faca1f980f00b161eadb089023gstein startup_children(remaining_children_to_start);

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein else {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* give the system some time to recover before kicking into

f4c310fd2555c6faca1f980f00b161eadb089023gstein hold_off_on_exponential_spawning = 10;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

52c1d304b1bd8e05da40a7cded2ecb9f0ba614c5gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0, ap_server_conf,

98e9c4a310bb623ff788680f88b6bd200ff36a24wrowe "%s configured -- resuming normal operations",

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_get_server_version());

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, 0, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "Server built: %s", ap_get_server_built());

f4c310fd2555c6faca1f980f00b161eadb089023gstein restart_pending = shutdown_pending = 0;

00f73f5096966f34c7db15562e5d2e1233eb4571gstein

00f73f5096966f34c7db15562e5d2e1233eb4571gstein server_main_loop(remaining_children_to_start);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (shutdown_pending) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* Time to gracefully shut down:

52c1d304b1bd8e05da40a7cded2ecb9f0ba614c5gstein if (unixd_killpg(getpgrp(), SIGTERM) < 0) {

52c1d304b1bd8e05da40a7cded2ecb9f0ba614c5gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "killpg SIGTERM");

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_reclaim_child_processes(1); /* Start with SIGTERM */

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* cleanup pid file on normal shutdown */

f4c310fd2555c6faca1f980f00b161eadb089023gstein {

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein const char *pidfile = NULL;

f4c310fd2555c6faca1f980f00b161eadb089023gstein pidfile = ap_server_root_relative (pconf, ap_pid_fname);

f4c310fd2555c6faca1f980f00b161eadb089023gstein if ( pidfile != NULL && unlink(pidfile) == 0)

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, 0,

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "removed PID file %s (pid=%ld)",

f4c310fd2555c6faca1f980f00b161eadb089023gstein pidfile, (long)getpid());

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0,

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_server_conf, "caught SIGTERM, shutting down");

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein return 1;

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* we've been told to restart */

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_signal(SIGHUP, SIG_IGN);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (one_process) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* not worth thinking about */

f4c310fd2555c6faca1f980f00b161eadb089023gstein return 1;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (is_graceful) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein char char_of_death = '!';

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "SIGWINCH received. Doing graceful restart");

f5ec9b038bb9db933072ba2c0a8e7bb2a3cedbdagstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* This is mostly for debugging... so that we know what is still

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein for (i = 0; i < num_daemons; ++i) {

f5ec9b038bb9db933072ba2c0a8e7bb2a3cedbdagstein if (ap_child_table[i].status != SERVER_DEAD) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_child_table[i].status = SERVER_DYING;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* give the children the signal to die */

f4c310fd2555c6faca1f980f00b161eadb089023gstein for (i = 0; i < num_daemons;) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein if ((rv = ap_write(pipe_of_death_out, &char_of_death, &one)) != APR_SUCCESS) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (ap_canonical_error(rv) == APR_EINTR) continue;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, rv, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "write pipe_of_death");

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein i++;

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein else {

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* Kill 'em all. Since the child acts the same on the parents SIGTERM

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (unixd_killpg(getpgrp(), SIGTERM) < 0) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf,

f4c310fd2555c6faca1f980f00b161eadb089023gstein "killpg SIGTERM");

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_reclaim_child_processes(1); /* Start with SIGTERM */

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0,

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_server_conf, "SIGHUP received. Attempting to restart");

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein return 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic void dexter_pre_config(ap_pool_t *p, ap_pool_t *plog, ap_pool_t *ptemp)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein static int restart_num = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein one_process = !!getenv("ONE_PROCESS");

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein /* sigh, want this only the second time around */

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (restart_num++ == 1) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein is_graceful = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein if (!one_process) {

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_detach();

f4c310fd2555c6faca1f980f00b161eadb089023gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein my_pid = getpid();

83719c22db4a6d0575bb4f7f34382d7b185a6f74gstein }

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein unixd_pre_config();

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_listen_pre_config();

f4c310fd2555c6faca1f980f00b161eadb089023gstein num_daemons = DEFAULT_NUM_DAEMON;

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm threads_to_start = DEFAULT_START_THREAD;

f4c310fd2555c6faca1f980f00b161eadb089023gstein min_spare_threads = DEFAULT_MIN_SPARE_THREAD;

f4c310fd2555c6faca1f980f00b161eadb089023gstein max_spare_threads = DEFAULT_MAX_SPARE_THREAD;

f4c310fd2555c6faca1f980f00b161eadb089023gstein max_threads = HARD_THREAD_LIMIT;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_pid_fname = DEFAULT_PIDLOG;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_scoreboard_fname = DEFAULT_SCOREBOARD;

f4c310fd2555c6faca1f980f00b161eadb089023gstein lock_fname = DEFAULT_LOCKFILE;

f4c310fd2555c6faca1f980f00b161eadb089023gstein max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD;

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_dexter_set_maintain_connection_status(1);

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir));

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic void dexter_hooks(void)

f4c310fd2555c6faca1f980f00b161eadb089023gstein{

f4c310fd2555c6faca1f980f00b161eadb089023gstein INIT_SIGLIST()

f4c310fd2555c6faca1f980f00b161eadb089023gstein one_process = 0;

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gstein ap_hook_pre_config(dexter_pre_config, NULL, NULL, AP_HOOK_MIDDLE);

f4c310fd2555c6faca1f980f00b161eadb089023gstein}

f4c310fd2555c6faca1f980f00b161eadb089023gstein

f4c310fd2555c6faca1f980f00b161eadb089023gsteinstatic const char *set_pidfile(cmd_parms *cmd, void *dummy, const char *arg)

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein{

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein if (err != NULL) {

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein return err;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein }

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein if (cmd->server->is_virtual) {

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein return "PidFile directive not allowed in <VirtualHost>";

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein }

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_pid_fname = arg;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein return NULL;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein}

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gsteinstatic const char *set_scoreboard(cmd_parms *cmd, void *dummy, const char *arg)

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein{

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein if (err != NULL) {

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein return err;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein }

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_scoreboard_fname = arg;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein return NULL;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein}

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gsteinstatic const char *set_lockfile(cmd_parms *cmd, void *dummy, const char *arg)

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein{

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein if (err != NULL) {

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein return err;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein }

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein lock_fname = arg;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein return NULL;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein}

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gsteinstatic const char *set_num_daemons (cmd_parms *cmd, void *dummy, const char *arg)

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein{

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein if (err != NULL) {

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein return err;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein }

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein num_daemons = atoi(arg);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein if (num_daemons > HARD_SERVER_LIMIT) {

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein "WARNING: NumServers of %d exceeds compile time limit "

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein "of %d servers,", num_daemons, HARD_SERVER_LIMIT);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein " lowering NumServers to %d. To increase, please "

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein "see the", HARD_SERVER_LIMIT);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein " HARD_SERVER_LIMIT define in %s.",

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein AP_MPM_HARD_LIMITS_FILE);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein num_daemons = HARD_SERVER_LIMIT;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein }

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein else if (num_daemons < 1) {

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein "WARNING: Require NumServers > 0, setting to 1");

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein num_daemons = 1;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein }

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein return NULL;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein}

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gsteinstatic const char *set_threads_to_start (cmd_parms *cmd, void *dummy, const char *arg)

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein{

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein if (err != NULL) {

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein return err;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein }

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein threads_to_start = atoi(arg);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein if (threads_to_start > HARD_THREAD_LIMIT) {

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein "WARNING: StartThreads of %d exceeds compile time"

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein " limit of %d threads,", threads_to_start,

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein HARD_THREAD_LIMIT);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein " lowering StartThreads to %d. To increase, please"

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein " see the", HARD_THREAD_LIMIT);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein " HARD_THREAD_LIMIT define in %s.",

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein AP_MPM_HARD_LIMITS_FILE);

bbba27074551817d7c6a606c4362965c26a0777egstein }

bbba27074551817d7c6a606c4362965c26a0777egstein else if (threads_to_start < 1) {

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein "WARNING: Require StartThreads > 0, setting to 1");

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein threads_to_start = 1;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein }

bbba27074551817d7c6a606c4362965c26a0777egstein return NULL;

bbba27074551817d7c6a606c4362965c26a0777egstein}

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gsteinstatic const char *set_min_spare_threads(cmd_parms *cmd, void *dummy, const char *arg)

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein{

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein if (err != NULL) {

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein return err;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein }

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein min_spare_threads = atoi(arg);

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein if (min_spare_threads <= 0) {

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein "WARNING: detected MinSpareThreads set to non-positive.");

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein "Resetting to 1 to avoid almost certain Apache failure.");

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein ap_log_error(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, NULL,

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein "Please read the documentation.");

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein min_spare_threads = 1;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein }

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein return NULL;

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein}

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gstein

c7548bcd69fbe1338ad855ba44f0b2b774e57bd8gsteinstatic const char *set_max_spare_threads(cmd_parms *cmd, void *dummy, const char *arg)