-/*
- * Copyright (c) 1996 Regents of the University of Michigan.
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2005 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
* 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).
+ */
/*
* rq.c - routines used to manage the queue of replication entries.
*
*/
-#include <stdio.h>
+#include "portable.h"
-#include "slurp.h"
-#include "globals.h"
+#include <stdio.h>
+#include <sys/stat.h>
+#include <ac/stdlib.h>
+#include <ac/string.h>
+#include <ac/unistd.h> /* get ftruncate() */
-/* externs */
-#ifdef NEEDPROTOS
-extern void Re_dump( Re *re );
-#else /* NEEDPROTOS */
-extern void Re_dump();
-#endif /* NEEDPROTOS */
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
-#ifndef SYSERRLIST_IN_STDIO
-extern char *sys_errlist[];
-#endif /* SYSERRLIST_IN_STDIO
+#include "slurp.h"
+#include "globals.h"
/*
* Lock the replication queue.
Rq *rq
)
{
- return( pthread_mutex_lock( &rq->rq_mutex ));
+ return( ldap_pvt_thread_mutex_lock( &rq->rq_mutex ));
}
-
-
-
/*
* Unlock the replication queue.
*/
Rq *rq
)
{
- return( pthread_mutex_unlock( &rq->rq_mutex ));
+ return( ldap_pvt_thread_mutex_unlock( &rq->rq_mutex ));
}
}
-
-
/*
* Return the next item in the queue. Callers should lock the queue before
* calling this routine.
}
-
-
/*
* Delete the item at the head of the list. The queue should be locked
* by the caller before calling this routine.
}
-
-
/*
* Add an entry to the tail of the replication queue. Locking is handled
* internally. When items are added to the queue, this routine wakes
/* set the sequence number */
re->re_seq = 0;
- if ( !wasempty && !strcmp(rq->rq_tail->re_timestamp, re->re_timestamp )) {
+ if ( !wasempty && ( rq->rq_tail->re_timestamp == re->re_timestamp )) {
/*
* Our new re has the same timestamp as the tail's timestamp.
* Increment the seq number in the tail and use it as our seq number.
/* Increment count of items in queue */
rq->rq_nre++;
/* wake up any threads waiting for more work */
- pthread_cond_broadcast( &rq->rq_more );
+ ldap_pvt_thread_cond_broadcast( &rq->rq_more );
/* ... and unlock the queue */
rq->rq_unlock( rq );
}
-
-
/*
* Garbage-collect the replication queue. Locking is handled internally.
*/
}
-
/*
* For debugging: dump the contents of the replication queue to a file.
* Locking is handled internally.
{
Re *re;
FILE *fp;
+ int tmpfd;
if ( rq == NULL ) {
Debug( LDAP_DEBUG_ANY, "Rq_dump: rq is NULL!\n", 0, 0, 0 );
return;
}
- if (( fp = fopen( SLURPD_DUMPFILE, "w" )) == NULL ) {
+ if (unlink(SLURPD_DUMPFILE) == -1 && errno != ENOENT) {
+ Debug( LDAP_DEBUG_ANY, "Rq_dump: \"%s\" exists, and cannot unlink\n",
+ SLURPD_DUMPFILE, 0, 0 );
+ return;
+ }
+ if (( tmpfd = open(SLURPD_DUMPFILE, O_CREAT|O_RDWR|O_EXCL, 0600)) == -1) {
Debug( LDAP_DEBUG_ANY, "Rq_dump: cannot open \"%s\" for write\n",
SLURPD_DUMPFILE, 0, 0 );
return;
}
+ if (( fp = fdopen( tmpfd, "w" )) == NULL ) {
+ Debug( LDAP_DEBUG_ANY, "Rq_dump: cannot fdopen \"%s\" for write\n",
+ SLURPD_DUMPFILE, 0, 0 );
+ return;
+ }
rq->rq_lock( rq );
for ( re = rq->rq_gethead( rq ); re != NULL; re = rq->rq_getnext( re )) {
}
-
/*
* Write the contents of a replication queue to a file. Returns zero if
* successful, -1 if not. Handles queue locking internally. Callers should
}
-
-
/*
* Check to see if the private slurpd replication log needs trimming.
* The current criteria are:
)
{
int rc = 0;
- Re *re;
- int nzrc = 0; /* nzrc is count of entries with refcnt == 0 */
time_t now;
if ( rq == NULL ) {
for ( re = rq->rq_gethead( rq ); re != NULL;
re = rq->rq_getnext( re )) {
if ( type == RQ_COUNT_NZRC ) {
- if ( re->re_getrefcnt( re ) > 1 ) {
+ if ( re->re_getrefcnt( re ) > 0 ) {
count++;
}
}
}
-
-
/*
* Allocate and initialize an Rq object.
*/
(*rq)->rq_getcount = Rq_getcount;
/* Initialize private data */
- pthread_mutex_init( &((*rq)->rq_mutex), pthread_mutexattr_default );
- pthread_cond_init( &((*rq)->rq_more), pthread_condattr_default );
+ ldap_pvt_thread_mutex_init( &((*rq)->rq_mutex) );
+ ldap_pvt_thread_cond_init( &((*rq)->rq_more) );
(*rq)->rq_head = NULL;
(*rq)->rq_tail = NULL;
(*rq)->rq_nre = 0;
return 0;
}
-