ITS#4638 restore original parameters on op completion

[openldap] / servers / slurpd / fm.c

diff --git a/servers/slurpd/fm.c b/servers/slurpd/fm.c
index 75c1afed027b74da2036f8bc638b748c3adeab35..987163873604c3dcd323aa5041c4792bc46b5fa9 100644 (file)
--- a/servers/slurpd/fm.c
+++ b/servers/slurpd/fm.c
@@ -1,6 +1,18 @@
 /* $OpenLDAP$ */
-/*
- * Copyright (c) 1996 Regents of the University of Michigan.
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2006 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1996 Regents of the University of Michigan.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms are permitted
@@ -10,6 +22,10 @@
  * software without specific prior written permission. This software
  * is provided ``as is'' without express or implied warranty.
  */
+/* ACKNOWLEDGEMENTS:
+ * This work was originally developed by the University of Michigan
+ * (as part of U-MICH LDAP).
+ */
 
 /*
  * fm.c - file management routines.
@@ -22,6 +38,8 @@
 #include <ac/stdlib.h>
 #include <ac/string.h>
 #include <ac/signal.h>
+#include <ac/socket.h>
+#include <ac/unistd.h>
 
 #include "slurp.h"
 #include "globals.h"
@@ -32,7 +50,6 @@
  */
 static char *get_record LDAP_P(( FILE * ));
 static void populate_queue LDAP_P(( char *f ));
-static RETSIGTYPE set_shutdown LDAP_P((int));
 
 
 /*
@@ -49,18 +66,19 @@ fm(
 )
 {
     int rc;
+    int i;
+    fd_set readfds;
 
     /* Set up our signal handlers:
      * SIG{TERM,INT,HUP} causes a shutdown
-     * LDAP_SIGUSR1 - does nothing, used to wake up sleeping threads.
-        * LDAP_SIGUSR2 - causes a shutdown
      */
-    (void) SIGNAL( LDAP_SIGUSR1, do_nothing );
-    (void) SIGNAL( LDAP_SIGUSR2, set_shutdown );
-    (void) SIGNAL( SIGTERM, set_shutdown );
-    (void) SIGNAL( SIGINT, set_shutdown );
+    (void) SIGNAL( SIGTERM, slurp_set_shutdown );
+    (void) SIGNAL( SIGINT, slurp_set_shutdown );
 #ifdef SIGHUP
-    (void) SIGNAL( SIGHUP, set_shutdown );
+    (void) SIGNAL( SIGHUP, slurp_set_shutdown );
+#endif
+#if defined(SIGBREAK) && defined(HAVE_NT_SERVICE_MANAGER)
+    (void) SIGNAL( SIGBREAK, do_nothing );
 #endif
 
     if ( sglob->one_shot_mode ) {
@@ -83,6 +101,7 @@ fm(
        populate_queue( sglob->slurpd_replogfile );
     }
 
+    FD_ZERO( &readfds );
 
     while ( !sglob->slurpd_shutdown ) {
        if ( file_nonempty( sglob->slapd_replogfile )) {
@@ -101,7 +120,13 @@ fm(
                }
            }
        } else {
-           ldap_pvt_thread_sleep( sglob->no_work_interval );
+           struct timeval tv;
+
+           FD_SET( sglob->wake_sds[0], &readfds );
+           tv.tv_sec = sglob->no_work_interval;
+           tv.tv_usec = 0;
+
+           rc = select( sglob->wake_sds[0]+1, &readfds, NULL, NULL, &tv );
        }
 
        /* Garbage-collect queue */
@@ -121,6 +146,12 @@ fm(
            }
        }
     }
+    sglob->rq->rq_lock( sglob->rq );                   /* lock queue */
+    ldap_pvt_thread_cond_broadcast( &(sglob->rq->rq_more) );   /* wake repl threads */
+    for ( i = 0; i < sglob->num_replicas; i++ ) {
+       (sglob->replicas[ i ])->ri_wake( sglob->replicas[ i ]);
+    }
+    sglob->rq->rq_unlock( sglob->rq );                 /* unlock queue */
     Debug( LDAP_DEBUG_ARGS, "fm: exiting\n", 0, 0, 0 );
     return NULL;
 }
@@ -131,20 +162,13 @@ fm(
 /*
  * Set a global flag which signals that we're shutting down.
  */
-static RETSIGTYPE
-set_shutdown(int sig)
+RETSIGTYPE
+slurp_set_shutdown(int sig)
 {
-    int        i;
-
     sglob->slurpd_shutdown = 1;                                /* set flag */
-    ldap_pvt_thread_kill( sglob->fm_tid, LDAP_SIGUSR1 );       /* wake up file mgr */
-    sglob->rq->rq_lock( sglob->rq );                   /* lock queue */
-    ldap_pvt_thread_cond_broadcast( &(sglob->rq->rq_more) );   /* wake repl threads */
-    for ( i = 0; i < sglob->num_replicas; i++ ) {
-       (sglob->replicas[ i ])->ri_wake( sglob->replicas[ i ]);
-    }
-    sglob->rq->rq_unlock( sglob->rq );                 /* unlock queue */
-    (void) SIGNAL( sig, set_shutdown );        /* reinstall handlers */
+    tcp_write( sglob->wake_sds[1], "0", 1);            /* wake up file mgr */
+
+    (void) SIGNAL_REINSTALL( sig, slurp_set_shutdown );        /* reinstall handlers */
 }
 
 
@@ -156,7 +180,7 @@ set_shutdown(int sig)
 RETSIGTYPE
 do_nothing(int sig)
 {
-    (void) SIGNAL( sig, do_nothing );
+    (void) SIGNAL_REINSTALL( sig, do_nothing );
 }