+++ /dev/null
-/*
- * 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.
- */
-
-#include <stdio.h>
-#include <libcitadel.h>
-
-#include "ctdl_module.h"
-#include "serv_extensions.h"
-#include "room_ops.h"
-#include "internet_addressing.h"
-#include "journaling.h"
-
-void check_sched_shutdown(void) {
- if ((ScheduledShutdown == 1) && (ContextList == NULL)) {
- 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.
- */
-void check_ref_counts_backend(struct ctdlroom *qrbuf, void *data) {
-
- int *new_refcounts;
-
- new_refcounts = (int *) data;
-
- ++new_refcounts[(int)qrbuf->QRfloor];
-}
-
-
-void check_ref_counts(void) {
- struct floor flbuf;
- int a;
-
- int new_refcounts[MAXFLOORS];
-
- syslog(LOG_DEBUG, "housekeeping: checking floor reference counts");
- for (a=0; a<MAXFLOORS; ++a) {
- new_refcounts[a] = 0;
- }
-
- cdb_begin_transaction();
- 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) {
- int do_housekeeping_now = 0;
- int do_perminute_housekeeping_now = 0;
- time_t now;
-
- /*
- * We do it this way instead of wrapping the whole loop in an
- * S_HOUSEKEEPING critical section because it eliminates the need to
- * potentially have multiple concurrent mutexes in progress.
- */
- begin_critical_section(S_HOUSEKEEPING);
- 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;
- }
-
- /*
- * Ok, at this point we've made the decision to run the housekeeping
- * loop. Everything below this point is real work.
- */
-
- 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);
-}
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