Began working on the 'clean shutdown' code for the new thread architecture.

[citadel.git] / citadel / sysdep.c

diff --git a/citadel/sysdep.c b/citadel/sysdep.c
index ee75bb9cba43be769faad5ded733dffbc7001f46..ea89f5ac5e9e3865be37c6c8111f6a0d1a61030d 100644 (file)
--- a/citadel/sysdep.c
+++ b/citadel/sysdep.c
@@ -101,7 +101,7 @@ volatile int running_as_daemon = 0;
 static RETSIGTYPE signal_cleanup(int signum) {
        syslog(LOG_DEBUG, "Caught signal %d; shutting down.", signum);
        exit_signal = signum;
-///    server_shutting_down = 1;
+       server_shutting_down = 1;
 }
 
 static RETSIGTYPE signal_exit(int signum) {
@@ -485,7 +485,7 @@ int client_write(const char *buf, int nbytes)
                                        syslog(LOG_DEBUG, "client_write(%d bytes) select() interrupted.",
                                                nbytes-bytes_written
                                        );
-                                       if (CtdlThreadCheckStop()) {
+                                       if (server_shutting_down) {
                                                CC->kill_me = KILLME_SELECT_INTERRUPTED;
                                                return (-1);
                                        } else {
@@ -1145,7 +1145,7 @@ void *worker_thread(void *blah) {
 
        ++num_workers;
 
-       while (!CtdlThreadCheckStop()) {
+       while (!server_shutting_down) {
 
                /* make doubly sure we're not holding any stale db handles
                 * which might cause a deadlock.
@@ -1194,7 +1194,7 @@ do_select:        force_purge = 0;
                 * ahead and get ready to select().
                 */
 
-               if (!CtdlThreadCheckStop()) {
+               if (!server_shutting_down) {
                        tv.tv_sec = 1;          /* wake up every second if no input */
                        tv.tv_usec = 0;
                        retval = select(highest + 1, &readfds, NULL, NULL, &tv);
@@ -1213,18 +1213,18 @@ do_select:      force_purge = 0;
                        }
                        if (errno != EINTR) {
                                syslog(LOG_EMERG, "Exiting (%s)\n", strerror(errno));
-                               CtdlThreadStopAll();
+                               server_shutting_down = 1;
                                continue;
                        } else {
 #if 0
                                syslog(LOG_DEBUG, "Interrupted select()\n");
 #endif
-                               if (CtdlThreadCheckStop()) return(NULL);
+                               if (server_shutting_down) return(NULL);
                                goto do_select;
                        }
                }
                else if (retval == 0) {
-                       if (CtdlThreadCheckStop()) return(NULL);
+                       if (server_shutting_down) return(NULL);
                }
 
                /* It must be a client socket.  Find a context that has data
@@ -1297,7 +1297,9 @@ SKIP_SELECT:
                do_housekeeping();
                --active_workers;
        }
-       /* If control reaches this point, the server is shutting down */        
+
+       /* If control reaches this point, the server is shutting down */
+       --num_workers;
        return(NULL);
 }
 
@@ -1325,7 +1327,7 @@ void *select_on_master(void *blah)
        CtdlFillSystemContext(&select_on_master_CC, "select_on_master");
        pthread_setspecific(MyConKey, (void *)&select_on_master_CC);
 
-       while (!CtdlThreadCheckStop()) {
+       while (!server_shutting_down) {
                /* Initialize the fdset. */
                FD_ZERO(&master_fds);
                highest = 0;
@@ -1340,7 +1342,7 @@ void *select_on_master(void *blah)
                        }
                }
 
-               if (!CtdlThreadCheckStop()) {
+               if (!server_shutting_down) {
                        tv.tv_sec = 60;         /* wake up every second if no input */
                        tv.tv_usec = 0;
                        retval = select(highest + 1, &master_fds, NULL, NULL, &tv);
@@ -1359,17 +1361,17 @@ void *select_on_master(void *blah)
                        }
                        if (errno != EINTR) {
                                syslog(LOG_EMERG, "Exiting (%s)\n", strerror(errno));
-                               CtdlThreadStopAll();
+                               server_shutting_down = 1;
                        } else {
 #if 0
                                syslog(LOG_DEBUG, "Interrupted CtdlThreadSelect.\n");
 #endif
-                               if (CtdlThreadCheckStop()) return(NULL);
+                               if (server_shutting_down) return(NULL);
                                continue;
                        }
                }
                else if(retval == 0) {
-                       if (CtdlThreadCheckStop()) return(NULL);
+                       if (server_shutting_down) return(NULL);
                        continue;
                }
                /* Next, check to see if it's a new client connecting