/*
- * $Id$
- *
* This file contains miscellaneous housekeeping tasks.
*
+ * Copyright (c) 1987-2017 by the citadel.org team
+ *
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*/
-#ifdef DLL_EXPORT
-#define IN_LIBCIT
-#endif
-
-#include "sysdep.h"
-#include <stdlib.h>
-#include <unistd.h>
#include <stdio.h>
-#include <fcntl.h>
-
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-
-#include <ctype.h>
-#include <string.h>
-#include <errno.h>
-#include <limits.h>
-#include <sys/types.h>
-#ifdef HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
-#include "tools.h"
-#include "citadel.h"
-#include "server.h"
+#include <libcitadel.h>
+
+#include "ctdl_module.h"
#include "serv_extensions.h"
-#include "citserver.h"
-#include "config.h"
-#include "housekeeping.h"
-#include "sysdep_decls.h"
#include "room_ops.h"
-#include "database.h"
-
-
-
-
-/*
- * Terminate idle sessions. This function pounds through the session table
- * comparing the current time to each session's time-of-last-command. If an
- * idle session is found it is terminated, then the search restarts at the
- * beginning because the pointer to our place in the list becomes invalid.
- */
-void terminate_idle_sessions(void) {
- struct CitContext *ccptr;
- time_t now;
- int session_to_kill;
- int killed = 0;
-
- now = time(NULL);
- session_to_kill = 0;
- begin_critical_section(S_SESSION_TABLE);
- for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
- if ( (ccptr!=CC)
- && (config.c_sleeping > 0)
- && (now - (ccptr->lastcmd) > config.c_sleeping) ) {
- ccptr->kill_me = 1;
- ++killed;
- }
- }
- end_critical_section(S_SESSION_TABLE);
- lprintf(9, "Terminated %d idle sessions\n", killed);
-}
-
-
+#include "internet_addressing.h"
+#include "journaling.h"
void check_sched_shutdown(void) {
if ((ScheduledShutdown == 1) && (ContextList == NULL)) {
- lprintf(3, "Scheduled shutdown initiating.\n");
- time_to_die = 1;
+ syslog(LOG_NOTICE, "housekeeping: scheduled shutdown initiating");
+ server_shutting_down = 1;
}
}
-
/*
* Check (and fix) floor reference counts. This doesn't need to be done
* very often, since the counts should remain correct during normal operation.
- * NOTE: this function pair should ONLY be called during startup. It is NOT
- * thread safe.
*/
-void check_ref_counts_backend(struct room *qrbuf, void *data) {
- struct floor flbuf;
+void check_ref_counts_backend(struct ctdlroom *qrbuf, void *data) {
- getfloor(&flbuf, qrbuf->QRfloor);
- ++flbuf.f_ref_count;
- flbuf.f_flags = flbuf.f_flags | QR_INUSE;
- putfloor(&flbuf, qrbuf->QRfloor);
+ int *new_refcounts;
+
+ new_refcounts = (int *) data;
+
+ ++new_refcounts[(int)qrbuf->QRfloor];
}
+
void check_ref_counts(void) {
struct floor flbuf;
int a;
- lprintf(7, "Checking floor reference counts\n");
+ int new_refcounts[MAXFLOORS];
+
+ syslog(LOG_DEBUG, "housekeeping: checking floor reference counts");
for (a=0; a<MAXFLOORS; ++a) {
- getfloor(&flbuf, a);
- flbuf.f_ref_count = 0;
- flbuf.f_flags = flbuf.f_flags & ~QR_INUSE;
- putfloor(&flbuf, a);
+ new_refcounts[a] = 0;
}
cdb_begin_transaction();
- ForEachRoom(check_ref_counts_backend, NULL);
+ CtdlForEachRoom(check_ref_counts_backend, (void *)new_refcounts );
cdb_end_transaction();
+
+ for (a=0; a<MAXFLOORS; ++a) {
+ lgetfloor(&flbuf, a);
+ flbuf.f_ref_count = new_refcounts[a];
+ if (new_refcounts[a] > 0) {
+ flbuf.f_flags = flbuf.f_flags | QR_INUSE;
+ }
+ else {
+ flbuf.f_flags = flbuf.f_flags & ~QR_INUSE;
+ }
+ lputfloor(&flbuf, a);
+ syslog(LOG_DEBUG, "housekeeping: floor %d has %d rooms", a, new_refcounts[a]);
+ }
}
+
/*
* This is the housekeeping loop. Worker threads come through here after
* processing client requests but before jumping back into the pool. We
* only allow housekeeping to execute once per minute, and we only allow one
* instance to run at a time.
*/
+static int housekeeping_in_progress = 0;
+static time_t last_timer = 0L;
void do_housekeeping(void) {
- static int housekeeping_in_progress = 0;
- static time_t last_timer = 0L;
int do_housekeeping_now = 0;
+ int do_perminute_housekeeping_now = 0;
time_t now;
/*
* potentially have multiple concurrent mutexes in progress.
*/
begin_critical_section(S_HOUSEKEEPING);
- now = time(NULL);
- if ( (now - last_timer) > (time_t)60 ) {
- if (housekeeping_in_progress == 0) {
- do_housekeeping_now = 1;
- housekeeping_in_progress = 1;
- last_timer = time(NULL);
- }
+ if (housekeeping_in_progress == 0) {
+ do_housekeeping_now = 1;
+ housekeeping_in_progress = 1;
}
end_critical_section(S_HOUSEKEEPING);
+ now = time(NULL);
if (do_housekeeping_now == 0) {
+ if ( (now - last_timer) > (time_t)300 ) {
+ syslog(LOG_WARNING,
+ "housekeeping: WARNING: housekeeping loop has not run for %ld minutes. Is something stuck?",
+ ((now - last_timer) / 60)
+ );
+ }
return;
}
* loop. Everything below this point is real work.
*/
- cdb_check_handles(); /* suggested by Justin Case */
- PerformSessionHooks(EVT_TIMER); /* Run any timer hooks */
+ if ( (now - last_timer) > (time_t)60 ) {
+ do_perminute_housekeeping_now = 1;
+ last_timer = time(NULL);
+ }
+
+ /* First, do the "as often as needed" stuff... */
+ JournalRunQueue();
+ PerformSessionHooks(EVT_HOUSE);
+
+ /* Then, do the "once per minute" stuff... */
+ if (do_perminute_housekeeping_now) {
+ cdb_check_handles(); /* suggested by Justin Case */
+ PerformSessionHooks(EVT_TIMER); /* Run any timer hooks */
+ }
/*
* All done.
*/
+ begin_critical_section(S_HOUSEKEEPING);
+ housekeeping_in_progress = 0;
+ end_critical_section(S_HOUSEKEEPING);
+}
+
+
+void CtdlDisableHouseKeeping(void)
+{
+ int ActiveBackgroundJobs;
+ int do_housekeeping_now = 0;
+ struct CitContext *nptr;
+ int nContexts, i;
+
+retry_block_housekeeping:
+ syslog(LOG_INFO, "housekeeping: trying to disable services");
+ begin_critical_section(S_HOUSEKEEPING);
+ if (housekeeping_in_progress == 0) {
+ do_housekeeping_now = 1;
+ housekeeping_in_progress = 1;
+ }
+ end_critical_section(S_HOUSEKEEPING);
+ if (do_housekeeping_now == 0) {
+ usleep(1000000);
+ goto retry_block_housekeeping;
+ }
+
+ syslog(LOG_INFO, "housekeeping: checking for running server jobs");
+
+retry_wait_for_contexts:
+ /* So that we don't keep the context list locked for a long time
+ * we create a copy of it first
+ */
+ ActiveBackgroundJobs = 0;
+ nptr = CtdlGetContextArray(&nContexts) ;
+ if (nptr)
+ {
+ for (i=0; i<nContexts; i++)
+ {
+ if ((nptr[i].state != CON_SYS) || (nptr[i].lastcmd == 0))
+ continue;
+ ActiveBackgroundJobs ++;
+ syslog(LOG_INFO, "jousekeeping: job CC[%d] active; use TERM if you don't want to wait for it", nptr[i].cs_pid);
+
+ }
+
+ free(nptr);
+
+ }
+ if (ActiveBackgroundJobs != 0) {
+ syslog(LOG_INFO, "housekeeping: found %d running jobs, need to wait", ActiveBackgroundJobs);
+ usleep(5000000);
+ goto retry_wait_for_contexts;
+ }
+ syslog(LOG_INFO, "housekeeping: disabled now.");
+}
+
+
+void CtdlEnableHouseKeeping(void)
+{
+ begin_critical_section(S_HOUSEKEEPING);
housekeeping_in_progress = 0;
+ end_critical_section(S_HOUSEKEEPING);
}
projects / citadel.git / blobdiff