]> granicus.if.org Git - apache/blobdiff - server/mpm/mpmt_pthread/mpmt_pthread.c
*) continued header revamping
[apache] / server / mpm / mpmt_pthread / mpmt_pthread.c
index 761df425131a9ea479598e9eb4a1464bfcfca383..1d3885d54820f592cc204cd663437253b8fbc982 100644 (file)
  * University of Illinois, Urbana-Champaign.
  */
 
-#define CORE_PRIVATE 
+#include "apr.h"
 #include "apr_portable.h"
 #include "apr_strings.h"
 #include "apr_file_io.h"
 #include "apr_thread_proc.h"
+
+#if APR_HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#if APR_HAVE_SYS_WAIT_H
+#include <sys/wait.h> 
+#endif
+
+#define CORE_PRIVATE 
 #include "ap_config.h"
 #include "httpd.h" 
 #include "http_main.h" 
 #include "ap_mpm.h"
 #include "unixd.h"
 #include "mpm_common.h"
-#include "ap_iol.h"
 #include "ap_listen.h"
 #include "scoreboard.h" 
 
 #ifdef HAVE_NETINET_TCP_H
 #include <netinet/tcp.h>
 #endif
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_SYS_WAIT_H
-#include <sys/wait.h> 
-#endif
+
 #include <pthread.h>
 #include <signal.h>
 
 int ap_threads_per_child=0;         /* Worker threads per child */
 int ap_max_requests_per_child=0;
 static const char *ap_pid_fname=NULL;
-API_VAR_EXPORT const char *ap_scoreboard_fname=NULL;
 static int ap_daemons_to_start=0;
 static int min_spare_threads=0;
 static int max_spare_threads=0;
 static int ap_daemons_limit=0;
-static time_t ap_restart_time=0;
-API_VAR_EXPORT int ap_extended_status = 0;
 static int workers_may_exit = 0;
 static int requests_this_child;
 static int num_listensocks = 0;
@@ -159,8 +159,7 @@ static int worker_thread_count;
 static pthread_mutex_t worker_thread_count_mutex;
 
 /* Locks for accept serialization */
-static pthread_mutex_t thread_accept_mutex = PTHREAD_MUTEX_INITIALIZER;
-static apr_lock_t *process_accept_mutex;
+static apr_lock_t *accept_mutex;
 static const char *lock_fname;
 
 #ifdef NO_SERIALIZED_ACCEPT
@@ -169,7 +168,7 @@ static const char *lock_fname;
 #define SAFE_ACCEPT(stmt) (stmt)
 #endif
 
-API_EXPORT(int) ap_get_max_daemons(void)
+AP_DECLARE(int) ap_get_max_daemons(void)
 {
     return ap_max_daemons_limit;
 }
@@ -179,7 +178,7 @@ static void clean_child_exit(int code) __attribute__ ((noreturn));
 void clean_child_exit(int code)
 {
     if (pchild) {
-       apr_destroy_pool(pchild);
+       apr_pool_destroy(pchild);
     }
     exit(code);
 }
@@ -233,7 +232,7 @@ ap_generation_t volatile ap_my_generation;
  * child to force an exit) and so do an exit anyway.
  */
 
-void ap_start_shutdown(void)
+static void ap_start_shutdown(void)
 {
     if (shutdown_pending == 1) {
        /* Um, is this _probably_ not an error, if the user has
@@ -256,7 +255,7 @@ static void ap_start_restart(int graceful)
     restart_pending = 1;
     is_graceful = graceful;
     if (is_graceful) {
-        apr_kill_cleanup(pconf, NULL, ap_cleanup_shared_mem);
+        apr_pool_cleanup_kill(pconf, NULL, ap_cleanup_scoreboard);
     }
 }
 
@@ -393,13 +392,11 @@ int ap_graceful_stop_signalled(void)
 
 static void process_socket(apr_pool_t *p, apr_socket_t *sock, int my_child_num, int my_thread_num)
 {
-    BUFF *conn_io;
     conn_rec *current_conn;
-    ap_iol *iol;
-    long conn_id = my_child_num * HARD_THREAD_LIMIT + my_thread_num;
+    long conn_id = AP_ID_FROM_CHILD_THREAD(my_child_num, my_thread_num);
     int csd;
 
-    (void) apr_get_os_sock(&csd, sock);
+    (void) apr_os_sock_get(&csd, sock);
 
     if (csd >= FD_SETSIZE) {
         ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING, 0, NULL,
@@ -407,24 +404,20 @@ static void process_socket(apr_pool_t *p, apr_socket_t *sock, int my_child_num,
                      "to rebuild Apache with a larger FD_SETSIZE "
                      "(currently %d)", 
                      csd, FD_SETSIZE);
-        apr_close_socket(sock);
+        apr_socket_close(sock);
         return;
     }
 
-    ap_sock_disable_nagle(csd);
-
-    iol = ap_iol_attach_socket(p, sock);
+    ap_sock_disable_nagle(sock);
 
     (void) ap_update_child_status(my_child_num, my_thread_num,  
                                  SERVER_BUSY_READ, (request_rec *) NULL);
-    conn_io = ap_bcreate(p, B_RDWR);
-    ap_bpush_iol(conn_io, iol);
-
-    current_conn = ap_new_apr_connection(p, ap_server_conf, conn_io, sock,
-                                         conn_id);
 
-    ap_process_connection(current_conn);
-    ap_lingering_close(current_conn);
+    current_conn = ap_new_connection(p, ap_server_conf, sock, conn_id);
+    if (current_conn) {
+        ap_process_connection(current_conn);
+        ap_lingering_close(current_conn);
+    }
 }
 /* Sets workers_may_exit if we received a character on the pipe_of_death */
 static void check_pipe_of_death(void)
@@ -433,10 +426,10 @@ static void check_pipe_of_death(void)
     if (!workers_may_exit) {
         apr_status_t ret;
         char pipe_read_char;
-       apr_ssize_t n = 1;
+       apr_size_t n = 1;
 
         ret = apr_recv(listensocks[0], &pipe_read_char, &n);
-        if (apr_canonical_error(ret) == APR_EAGAIN) {
+        if (APR_STATUS_IS_EAGAIN(ret)) {
             /* It lost the lottery. It must continue to suffer
              * through a life of servitude. */
         }
@@ -465,33 +458,28 @@ static void * worker_thread(void * dummy)
 
     free(ti);
 
-    apr_create_pool(&ptrans, tpool);
+    apr_pool_create(&ptrans, tpool);
 
     pthread_mutex_lock(&worker_thread_count_mutex);
     worker_thread_count++;
     pthread_mutex_unlock(&worker_thread_count_mutex);
 
-    apr_setup_poll(&pollset, num_listensocks+1, tpool);
+    apr_poll_setup(&pollset, num_listensocks+1, tpool);
     for(n=0 ; n <= num_listensocks ; ++n)
-       apr_add_poll_socket(pollset, listensocks[n], APR_POLLIN);
+       apr_poll_socket_add(pollset, listensocks[n], APR_POLLIN);
 
     /* TODO: Switch to a system where threads reuse the results from earlier
        poll calls - manoj */
-    while (!workers_may_exit) {
+    while (1) {
         workers_may_exit |= (ap_max_requests_per_child != 0) && (requests_this_child <= 0);
         if (workers_may_exit) break;
 
         (void) ap_update_child_status(process_slot, thread_slot, SERVER_READY, 
                                       (request_rec *) NULL);
-        pthread_mutex_lock(&thread_accept_mutex);
-        if (workers_may_exit) {
-            pthread_mutex_unlock(&thread_accept_mutex);
-            break;
-        }
-        if ((rv = SAFE_ACCEPT(apr_lock(process_accept_mutex)))
+        if ((rv = SAFE_ACCEPT(apr_lock_aquire(accept_mutex)))
             != APR_SUCCESS) {
             ap_log_error(APLOG_MARK, APLOG_EMERG, rv, ap_server_conf,
-                         "apr_lock failed. Attempting to shutdown "
+                         "apr_lock_aquire failed. Attempting to shutdown "
                          "process gracefully.");
             workers_may_exit = 1;
         }
@@ -502,7 +490,7 @@ static void * worker_thread(void * dummy)
 
             ret = apr_poll(pollset, &n, -1);
             if (ret != APR_SUCCESS) {
-                if (apr_canonical_error(ret) == APR_EINTR) {
+                if (APR_STATUS_IS_EINTR(ret)) {
                     continue;
                 }
 
@@ -515,7 +503,7 @@ static void * worker_thread(void * dummy)
 
             if (workers_may_exit) break;
 
-           apr_get_revents(&event, listensocks[0], pollset);
+           apr_poll_revents_get(&event, listensocks[0], pollset);
             if (event & APR_POLLIN) {
                 /* A process got a signal on the shutdown pipe. Check if we're
                  * the lucky process to die. */
@@ -536,7 +524,7 @@ static void * worker_thread(void * dummy)
                         curr_pollfd = 1;
                     }
                     /* XXX: Should we check for POLLERR? */
-                   apr_get_revents(&event, listensocks[curr_pollfd], pollset);
+                   apr_poll_revents_get(&event, listensocks[curr_pollfd], pollset);
                     if (event & APR_POLLIN) {
                         last_pollfd = curr_pollfd;
                        sd=listensocks[curr_pollfd];
@@ -552,34 +540,32 @@ static void * worker_thread(void * dummy)
                 ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf, 
                              "apr_accept");
             }
-            if ((rv = SAFE_ACCEPT(apr_unlock(process_accept_mutex)))
+            if ((rv = SAFE_ACCEPT(apr_lock_release(accept_mutex)))
                 != APR_SUCCESS) {
                 ap_log_error(APLOG_MARK, APLOG_EMERG, rv, ap_server_conf,
-                             "apr_unlock failed. Attempting to shutdown "
+                             "apr_lock_release failed. Attempting to shutdown "
                              "process gracefully.");
                 workers_may_exit = 1;
             }
-            pthread_mutex_unlock(&thread_accept_mutex);
             if (csd != NULL) {
                 process_socket(ptrans, csd, process_slot, thread_slot);
                 requests_this_child--;
             }
         }
         else {
-            if ((rv = SAFE_ACCEPT(apr_unlock(process_accept_mutex)))
+            if ((rv = SAFE_ACCEPT(apr_lock_release(accept_mutex)))
                 != APR_SUCCESS) {
                 ap_log_error(APLOG_MARK, APLOG_EMERG, rv, ap_server_conf,
-                             "apr_unlock failed. Attempting to shutdown "
+                             "apr_lock_release failed. Attempting to shutdown "
                              "process gracefully.");
                 workers_may_exit = 1;
             }
-            pthread_mutex_unlock(&thread_accept_mutex);
             break;
         }
         apr_clear_pool(ptrans);
     }
 
-    apr_destroy_pool(tpool);
+    apr_pool_destroy(tpool);
     ap_update_child_status(process_slot, thread_slot, SERVER_DEAD,
         (request_rec *) NULL);
     pthread_mutex_lock(&worker_thread_count_mutex);
@@ -609,12 +595,12 @@ static void child_main(int child_num_arg)
 
 
     ap_my_pid = getpid();
-    apr_create_pool(&pchild, pconf);
+    apr_pool_create(&pchild, pconf);
 
     /*stuff to do before we switch id's, so we have permissions.*/
     reopen_scoreboard(pchild);
 
-    rv = SAFE_ACCEPT(apr_child_init_lock(&process_accept_mutex, lock_fname,
+    rv = SAFE_ACCEPT(apr_lock_child_init(&accept_mutex, lock_fname,
                      pchild));
     if (rv != APR_SUCCESS) {
         ap_log_error(APLOG_MARK, APLOG_EMERG, rv, ap_server_conf,
@@ -683,7 +669,7 @@ static void child_main(int child_num_arg)
        my_info->pid = my_child_num;
         my_info->tid = i;
        my_info->sd = 0;
-       apr_create_pool(&my_info->tpool, pchild);
+       apr_pool_create(&my_info->tpool, pchild);
        
        /* We are creating threads right now */
        (void) ap_update_child_status(my_child_num, i, SERVER_STARTING, 
@@ -731,7 +717,7 @@ static void child_main(int child_num_arg)
     }
 }
 
-static int make_child(server_rec *s, int slot, time_t now
+static int make_child(server_rec *s, int slot) 
 {
     int pid;
 
@@ -799,7 +785,7 @@ static void startup_children(int number_to_start)
        if (ap_scoreboard_image->parent[i].pid != 0) {
            continue;
        }
-       if (make_child(ap_server_conf, i, 0) < 0) {
+       if (make_child(ap_server_conf, i) < 0) {
            break;
        }
        --number_to_start;
@@ -823,13 +809,12 @@ static void perform_idle_server_maintenance(void)
 {
     int i, j;
     int idle_thread_count;
-    thread_score *ss;
-    time_t now = 0;
+    short_score *ss;
     int free_length;
     int free_slots[MAX_SPAWN_RATE];
     int last_non_dead;
     int total_non_dead;
-    apr_ssize_t one = 1;
+    apr_size_t one = 1;
     apr_status_t rv;
 
     /* initialize the free_list */
@@ -885,7 +870,7 @@ static void perform_idle_server_maintenance(void)
     if (idle_thread_count > max_spare_threads) {
         /* Kill off one child */
         char char_of_death = '!';
-        if ((rv = apr_write(pipe_of_death_out, &char_of_death, &one)) != APR_SUCCESS) {
+        if ((rv = apr_file_write(pipe_of_death_out, &char_of_death, &one)) != APR_SUCCESS) {
             ap_log_error(APLOG_MARK, APLOG_WARNING, rv, ap_server_conf, "write pipe_of_death");
         }
         idle_spawn_rate = 1;
@@ -916,7 +901,7 @@ static void perform_idle_server_maintenance(void)
                             idle_thread_count, total_non_dead);
            }
            for (i = 0; i < free_length; ++i) {
-               make_child(ap_server_conf, free_slots[i], now);
+               make_child(ap_server_conf, free_slots[i]);
            }
            /* the next time around we want to spawn twice as many if this
             * wasn't good enough, but not if we've just done a graceful
@@ -937,7 +922,7 @@ static void perform_idle_server_maintenance(void)
 static void server_main_loop(int remaining_children_to_start)
 {
     int child_slot;
-    ap_wait_t status;
+    apr_wait_t status;
     apr_proc_t pid;
     int i;
 
@@ -949,7 +934,6 @@ static void server_main_loop(int remaining_children_to_start)
             /* non-fatal death... note that it's gone in the scoreboard. */
             child_slot = find_child_by_pid(&pid);
             if (child_slot >= 0) {
-                ap_mpmt_pthread_force_reset_connection_status(child_slot);
                 for (i = 0; i < ap_threads_per_child; i++)
                     ap_update_child_status(child_slot, i, SERVER_DEAD, (request_rec *) NULL);
                 
@@ -958,12 +942,12 @@ static void server_main_loop(int remaining_children_to_start)
                    /* we're still doing a 1-for-1 replacement of dead
                      * children with new children
                      */
-                   make_child(ap_server_conf, child_slot, time(NULL));
+                   make_child(ap_server_conf, child_slot);
                    --remaining_children_to_start;
                }
 #if APR_HAS_OTHER_CHILD
            }
-           else if (apr_reap_other_child(&pid, status) == 0) {
+           else if (apr_proc_other_child_read(&pid, status) == 0) {
                /* handled */
 #endif
            }
@@ -1005,22 +989,22 @@ int ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s)
 {
     int remaining_children_to_start;
     apr_status_t rv;
-    apr_ssize_t one = 1;
+    apr_size_t one = 1;
 
     pconf = _pconf;
     ap_server_conf = s;
-    rv = apr_create_pipe(&pipe_of_death_in, &pipe_of_death_out, pconf);
+    rv = apr_file_pipe_create(&pipe_of_death_in, &pipe_of_death_out, pconf);
     if (rv != APR_SUCCESS) {
         ap_log_error(APLOG_MARK, APLOG_ERR, rv,
                      (const server_rec*) ap_server_conf,
-                     "apr_create_pipe (pipe_of_death)");
+                     "apr_file_pipe_create (pipe_of_death)");
         exit(1);
     }
 
-    if ((rv = apr_set_pipe_timeout(pipe_of_death_in, 0)) != APR_SUCCESS) {
+    if ((rv = apr_file_pipe_timeout_set(pipe_of_death_in, 0)) != APR_SUCCESS) {
         ap_log_error(APLOG_MARK, APLOG_ERR, rv,
                      (const server_rec*) ap_server_conf,
-                     "apr_set_pipe_timeout (pipe_of_death)");
+                     "apr_file_pipe_timeout_set (pipe_of_death)");
         exit(1);
     }
     ap_server_conf = s;
@@ -1036,17 +1020,17 @@ int ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s)
     lock_fname = apr_psprintf(_pconf, "%s.%u",
                              ap_server_root_relative(_pconf, lock_fname),
                              ap_my_pid);
-    rv = apr_create_lock(&process_accept_mutex, APR_MUTEX, APR_CROSS_PROCESS,
+    rv = apr_lock_create(&accept_mutex, APR_MUTEX, APR_LOCKALL,
                    lock_fname, _pconf);
     if (rv != APR_SUCCESS) {
         ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s,
-                     "Couldn't create cross-process lock");
+                     "Couldn't create accept lock");
         return 1;
     }
 
 
     if (!is_graceful) {
-       reinit_scoreboard(pconf);
+        ap_create_scoreboard(pconf, SB_SHARED);
     }
 
     set_signals();
@@ -1136,8 +1120,8 @@ int ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s)
 
        /* give the children the signal to die */
         for (i = 0; i < ap_daemons_limit;) {
-            if ((rv = apr_write(pipe_of_death_in, &char_of_death, &one)) != APR_SUCCESS) {
-                if (apr_canonical_error(rv) == APR_EINTR) continue;
+            if ((rv = apr_file_write(pipe_of_death_in, &char_of_death, &one)) != APR_SUCCESS) {
+                if (APR_STATUS_IS_EINTR(rv)) continue;
                 ap_log_error(APLOG_MARK, APLOG_WARNING, rv, ap_server_conf, "write pipe_of_death");
             }
             i++;
@@ -1167,9 +1151,6 @@ int ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s)
        ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0, ap_server_conf,
                    "SIGHUP received.  Attempting to restart");
     }
-    if (!is_graceful) {
-        ap_restart_time = time(NULL); 
-    }
     return 0;
 }
 
@@ -1178,20 +1159,20 @@ static void mpmt_pthread_pre_config(apr_pool_t *pconf, apr_pool_t *plog, apr_poo
     static int restart_num = 0;
     int no_detach = 0;
 
-    one_process = !!getenv("ONE_PROCESS");
-    no_detach = !!getenv("NO_DETACH");
+    one_process = !!ap_exists_config_define("ONE_PROCESS");
+    no_detach = !!ap_exists_config_define("NO_DETACH");
 
     /* sigh, want this only the second time around */
     if (restart_num++ == 1) {
        is_graceful = 0;
 
        if (!one_process && !no_detach) {
-           apr_detach();
+           apr_proc_detach();
        }
        ap_my_pid = getpid();
     }
 
-    unixd_pre_config();
+    unixd_pre_config(ptemp);
     ap_listen_pre_config();
     ap_daemons_to_start = DEFAULT_START_DAEMON;
     min_spare_threads = DEFAULT_MIN_FREE_DAEMON * DEFAULT_THREADS_PER_CHILD;
@@ -1207,12 +1188,12 @@ static void mpmt_pthread_pre_config(apr_pool_t *pconf, apr_pool_t *plog, apr_poo
     apr_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir));
 }
 
-static void mpmt_pthread_hooks(void)
+static void mpmt_pthread_hooks(apr_pool_t *p)
 {
     INIT_SIGLIST()
     one_process = 0;
 
-    ap_hook_pre_config(mpmt_pthread_pre_config, NULL, NULL, AP_HOOK_MIDDLE);
+    ap_hook_pre_config(mpmt_pthread_pre_config, NULL, NULL, APR_HOOK_MIDDLE);
 }
 
 
@@ -1380,8 +1361,8 @@ static const char *set_coredumpdir (cmd_parms *cmd, void *dummy,
     }
 
     fname = ap_server_root_relative(cmd->pool, arg);
-    if ((apr_stat(&finfo, fname, cmd->pool) != APR_SUCCESS) || 
-        (finfo.filetype != APR_DIR)) {
+    if ((apr_stat(&finfo, fname, APR_FINFO_TYPE, cmd->pool) != APR_SUCCESS) 
+        || (finfo.filetype != APR_DIR)) {
        return apr_pstrcat(cmd->pool, "CoreDumpDirectory ", fname, 
                          " does not exist or is not a directory", NULL);
     }
@@ -1415,7 +1396,7 @@ AP_INIT_TAKE1("CoreDumpDirectory", set_coredumpdir, NULL, RSRC_CONF,
 { NULL }
 };
 
-module MODULE_VAR_EXPORT mpm_mpmt_pthread_module = {
+module AP_MODULE_DECLARE_DATA mpm_mpmt_pthread_module = {
     MPM20_MODULE_STUFF,
     NULL,                       /* hook to run before apache parses args */
     NULL,                      /* create per-directory config structure */
@@ -1423,7 +1404,6 @@ module MODULE_VAR_EXPORT mpm_mpmt_pthread_module = {
     NULL,                      /* create per-server config structure */
     NULL,                      /* merge per-server config structures */
     mpmt_pthread_cmds,         /* command apr_table_t */
-    NULL,                      /* handlers */
     mpmt_pthread_hooks         /* register_hooks */
 };