mirror of
https://git.openldap.org/openldap/openldap.git
synced 2025-03-01 14:15:49 +08:00
f0688d71a1
Fixed in slurpd and the slapd main dir. Slapd clients were not examined. It also "felt right" to swap the order of closing dfp and rfp in slurpd copy_replog(), so the last acquired lock is unlocked first.
67 lines
1.2 KiB
C
67 lines
1.2 KiB
C
/* lock.c - routines to open and apply an advisory lock to a file */
|
|
|
|
#include "portable.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <ac/socket.h>
|
|
#include <ac/time.h>
|
|
#include <ac/unistd.h>
|
|
|
|
#include <sys/file.h>
|
|
#include <sys/param.h>
|
|
#include "slap.h"
|
|
|
|
FILE *
|
|
lock_fopen( char *fname, char *type, FILE **lfp )
|
|
{
|
|
FILE *fp;
|
|
char buf[MAXPATHLEN];
|
|
|
|
/* open the lock file */
|
|
strcpy( buf, fname );
|
|
strcat( buf, ".lock" );
|
|
if ( (*lfp = fopen( buf, "w" )) == NULL ) {
|
|
Debug( LDAP_DEBUG_ANY, "could not open \"%s\"\n", buf, 0, 0 );
|
|
return( NULL );
|
|
}
|
|
|
|
/* acquire the lock */
|
|
#ifdef HAVE_FLOCK
|
|
while ( flock( fileno( *lfp ), LOCK_EX ) != 0 ) {
|
|
#else
|
|
while ( lockf( fileno( *lfp ), F_LOCK, 0 ) != 0 ) {
|
|
#endif
|
|
; /* NULL */
|
|
}
|
|
|
|
/* open the log file */
|
|
if ( (fp = fopen( fname, type )) == NULL ) {
|
|
Debug( LDAP_DEBUG_ANY, "could not open \"%s\"\n", fname, 0, 0 );
|
|
#ifdef HAVE_FLOCK
|
|
flock( fileno( *lfp ), LOCK_UN );
|
|
#else
|
|
lockf( fileno( *lfp ), F_ULOCK, 0 );
|
|
#endif
|
|
fclose( *lfp );
|
|
*lfp = NULL;
|
|
return( NULL );
|
|
}
|
|
|
|
return( fp );
|
|
}
|
|
|
|
int
|
|
lock_fclose( FILE *fp, FILE *lfp )
|
|
{
|
|
/* unlock */
|
|
#ifdef HAVE_FLOCK
|
|
flock( fileno( lfp ), LOCK_UN );
|
|
#else
|
|
lockf( fileno( lfp ), F_ULOCK, 0 );
|
|
#endif
|
|
fclose( lfp );
|
|
|
|
return( fclose( fp ) );
|
|
}
|