pid_t sys_getpid(void);
int sys_popen(const char *command);
int sys_pclose(int fd);
-int fcntl64(int fd, int cmd, struct flock * lock);
/*The following definitions come from lib/talloc.c */
TDB_CONTEXT *tdb_open(char *name, int hash_size, int tdb_flags,
int open_flags, mode_t mode);
int tdb_close(TDB_CONTEXT *tdb);
-int tdb_writelock(TDB_CONTEXT *tdb);
-int tdb_writeunlock(TDB_CONTEXT *tdb);
int tdb_lockchain(TDB_CONTEXT *tdb, TDB_DATA key);
int tdb_unlockchain(TDB_CONTEXT *tdb, TDB_DATA key);
/*The following definitions come from tdb/tdbutil.c */
+int tdb_lock_bystring(TDB_CONTEXT *tdb, char *keyval);
+int tdb_unlock_bystring(TDB_CONTEXT *tdb, char *keyval);
int tdb_fetch_int_byblob(TDB_CONTEXT *tdb, char *keyval, size_t len);
int tdb_fetch_int(TDB_CONTEXT *tdb, char *keystr);
int tdb_store_int_byblob(TDB_CONTEXT *tdb, char *keystr, size_t len, int v);
BOOL nt_printing_init(void)
{
static pid_t local_pid;
+ char *vstring = "INFO/version";
if (tdb && local_pid == sys_getpid()) return True;
tdb = tdb_open(lock_path("ntdrivers.tdb"), 0, 0, O_RDWR|O_CREAT, 0600);
local_pid = sys_getpid();
/* handle a Samba upgrade */
- tdb_writelock(tdb);
- if (tdb_fetch_int(tdb, "INFO/version") != DATABASE_VERSION) {
+ tdb_lock_bystring(tdb, vstring);
+ if (tdb_fetch_int(tdb, vstring) != DATABASE_VERSION) {
tdb_traverse(tdb, (tdb_traverse_func)tdb_delete, NULL);
- tdb_store_int(tdb, "INFO/version", DATABASE_VERSION);
+ tdb_store_int(tdb, vstring, DATABASE_VERSION);
}
- tdb_writeunlock(tdb);
+ tdb_unlock_bystring(tdb, vstring);
return True;
}
****************************************************************************/
BOOL print_backend_init(void)
{
+ char *sversion = "INFO/version";
+
if (tdb && local_pid == sys_getpid()) return True;
tdb = tdb_open(lock_path("printing.tdb"), 0, 0, O_RDWR|O_CREAT, 0600);
if (!tdb) {
local_pid = sys_getpid();
/* handle a Samba upgrade */
- tdb_writelock(tdb);
- if (tdb_fetch_int(tdb, "INFO/version") != PRINT_DATABASE_VERSION) {
+ tdb_lock_bystring(tdb, sversion);
+ if (tdb_fetch_int(tdb, sversion) != PRINT_DATABASE_VERSION) {
tdb_traverse(tdb, (tdb_traverse_func)tdb_delete, NULL);
- tdb_store_int(tdb, "INFO/version", PRINT_DATABASE_VERSION);
+ tdb_store_int(tdb, sversion, PRINT_DATABASE_VERSION);
}
- tdb_writeunlock(tdb);
+ tdb_unlock_bystring(tdb, sversion);
return nt_printing_init();
}
fstrcpy(pjob.qname, lp_servicename(snum));
/* lock the database */
- tdb_writelock(tdb);
+ tdb_lock_bystring(tdb, "INFO/nextjob");
next_jobnum:
next_jobid = tdb_fetch_int(tdb, "INFO/nextjob");
print_job_store(jobid, &pjob);
- tdb_writeunlock(tdb);
+ tdb_unlock_bystring(tdb, "INFO/nextjob");
/*
* If the printer is marked as postscript output a leading
tdb_delete(tdb, print_key(jobid));
}
- tdb_writeunlock(tdb);
+ tdb_unlock_bystring(tdb, "INFO/nextjob");
return -1;
}
return 0;
}
-/* lock the database. If we already have it locked then don't do anything */
-int tdb_writelock(TDB_CONTEXT *tdb)
-{
- if (tdb == NULL) {
-#ifdef TDB_DEBUG
- printf("tdb_writelock() called with null context\n");
-#endif
- return -1;
- }
-
- return tdb_lock(tdb, -1, F_WRLCK);
-}
-
-/* unlock the database. */
-int tdb_writeunlock(TDB_CONTEXT *tdb)
-{
- if (tdb == NULL) {
-#ifdef TDB_DEBUG
- printf("tdb_writeunlock() called with null context\n");
-#endif
- return -1;
- }
-
- return tdb_unlock(tdb, -1);
-}
/* lock one hash chain. This is meant to be used to reduce locking
contention - it cannot guarantee how many records will be locked */