Rev 774: merge from samba4 in http://samba.org/~tridge/ctdb

tridge at samba.org tridge at samba.org
Fri Jan 18 04:48:37 GMT 2008


------------------------------------------------------------
revno: 774
revision-id:tridge at samba.org-20080118044836-breaxa1j2sdox553
parent: tridge at samba.org-20080118023254-ub38q3s5eqfbhu74
committer: Andrew Tridgell <tridge at samba.org>
branch nick: tridge.stable
timestamp: Fri 2008-01-18 15:48:36 +1100
message:
  merge from samba4
modified:
  lib/tdb/common/open.c          open.c-20070220022425-m1wibgjq7n5hahs6-8
  lib/tdb/common/tdb.c           tdb.c-20070220022425-m1wibgjq7n5hahs6-9
  lib/tdb/common/tdb_private.h   tdb_private.h-20070220022425-m1wibgjq7n5hahs6-10
  lib/tdb/common/transaction.c   transaction.c-20070220022425-m1wibgjq7n5hahs6-11
  lib/tdb/common/traverse.c      traverse.c-20070220022425-m1wibgjq7n5hahs6-12
  lib/tdb/docs/README            readme-20070125040949-7t3f5zdl1q4z9hyv-98
  lib/tdb/include/tdb.h          tdb.h-20070125040949-7t3f5zdl1q4z9hyv-101
  lib/tdb/tools/tdbtool.c        tdbtool.c-20070125040949-7t3f5zdl1q4z9hyv-108
=== modified file 'lib/tdb/common/open.c'
--- a/lib/tdb/common/open.c	2008-01-05 06:41:41 +0000
+++ b/lib/tdb/common/open.c	2008-01-18 04:48:36 +0000
@@ -179,9 +179,7 @@
 		tdb->page_size = 0x2000;
 	}
 
-	if (open_flags & TDB_VOLATILE) {
-		tdb->max_dead_records = 5;
-	}
+	tdb->max_dead_records = (tdb_flags & TDB_VOLATILE) ? 5 : 0;
 
 	if ((open_flags & O_ACCMODE) == O_WRONLY) {
 		TDB_LOG((tdb, TDB_DEBUG_ERROR, "tdb_open_ex: can't open tdb %s write-only\n",
@@ -229,6 +227,7 @@
 
 	/* we need to zero database if we are the only one with it open */
 	if ((tdb_flags & TDB_CLEAR_IF_FIRST) &&
+	    (!tdb->read_only) &&
 	    (locked = (tdb->methods->tdb_brlock(tdb, ACTIVE_LOCK, F_WRLCK, F_SETLK, 0, 1) == 0))) {
 		open_flags |= O_CREAT;
 		if (ftruncate(tdb->fd, 0) == -1) {
@@ -288,7 +287,6 @@
 	tdb->map_size = st.st_size;
 	tdb->device = st.st_dev;
 	tdb->inode = st.st_ino;
-	tdb->max_dead_records = 0;
 	tdb_mmap(tdb);
 	if (locked) {
 		if (tdb->methods->tdb_brlock(tdb, ACTIVE_LOCK, F_UNLCK, F_SETLK, 0, 1) == -1) {

=== modified file 'lib/tdb/common/tdb.c'
--- a/lib/tdb/common/tdb.c	2008-01-14 04:11:10 +0000
+++ b/lib/tdb/common/tdb.c	2008-01-18 04:48:36 +0000
@@ -743,45 +743,3 @@
 	tdb_unlockall(tdb);
 	return -1;
 }
-
-
-/* 
-   validate the integrity of all tdb hash chains. Useful when debugging
- */
-int tdb_validate(struct tdb_context *tdb)
-{
-	int h;
-	for (h=-1;h<(int)tdb->header.hash_size;h++) {
-		tdb_off_t rec_ptr;
-		uint32_t count = 0;
-		if (tdb_ofs_read(tdb, TDB_HASH_TOP(h), &rec_ptr) == -1) {
-			TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_validate: failed ofs_read at top of hash %d\n", h));
-			return -1;
-		}
-		while (rec_ptr) {
-			struct list_struct r;
-			tdb_off_t size;
-
-			if (tdb_rec_read(tdb, rec_ptr, &r) == -1) {
-				TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_validate: failed rec_read h=%d rec_ptr=%u count=%u\n",
-					 h, rec_ptr, count));
-				return -1;
-			}
-			if (tdb_ofs_read(tdb, rec_ptr + sizeof(r) + r.rec_len - sizeof(tdb_off_t), &size) == -1) {
-				TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_validate: failed ofs_read h=%d rec_ptr=%u count=%u\n",
-					 h, rec_ptr, count));
-				return -1;
-			}
-			if (size != r.rec_len + sizeof(r)) {
-				TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_validate: failed size check size=%u h=%d rec_ptr=%u count=%u\n",
-					 size, h, rec_ptr, count));
-				return -1;
-			}
-			rec_ptr = r.next;
-			count++;
-		}		
-	}
-	return 0;
-}
-
-

=== modified file 'lib/tdb/common/tdb_private.h'
--- a/lib/tdb/common/tdb_private.h	2008-01-18 02:32:54 +0000
+++ b/lib/tdb/common/tdb_private.h	2008-01-18 04:48:36 +0000
@@ -177,6 +177,7 @@
 int tdb_munmap(struct tdb_context *tdb);
 void tdb_mmap(struct tdb_context *tdb);
 int tdb_lock(struct tdb_context *tdb, int list, int ltype);
+int tdb_lock_nonblock(struct tdb_context *tdb, int list, int ltype);
 int tdb_unlock(struct tdb_context *tdb, int list, int ltype);
 int tdb_brlock(struct tdb_context *tdb, tdb_off_t offset, int rw_type, int lck_type, int probe, size_t len);
 int tdb_transaction_lock(struct tdb_context *tdb, int ltype);

=== modified file 'lib/tdb/common/transaction.c'
--- a/lib/tdb/common/transaction.c	2008-01-15 04:28:07 +0000
+++ b/lib/tdb/common/transaction.c	2008-01-18 04:48:36 +0000
@@ -219,9 +219,12 @@
 		uint8_t **new_blocks;
 		/* expand the blocks array */
 		if (tdb->transaction->blocks == NULL) {
-			new_blocks = malloc((blk+1)*sizeof(uint8_t *));
+			new_blocks = (uint8_t **)malloc(
+				(blk+1)*sizeof(uint8_t *));
 		} else {
-			new_blocks = realloc(tdb->transaction->blocks, (blk+1)*sizeof(uint8_t *));
+			new_blocks = (uint8_t **)realloc(
+				tdb->transaction->blocks,
+				(blk+1)*sizeof(uint8_t *));
 		}
 		if (new_blocks == NULL) {
 			tdb->ecode = TDB_ERR_OOM;

=== modified file 'lib/tdb/common/traverse.c'
--- a/lib/tdb/common/traverse.c	2008-01-05 06:41:41 +0000
+++ b/lib/tdb/common/traverse.c	2008-01-18 04:48:36 +0000
@@ -223,6 +223,9 @@
 /*
   a write style traverse - needs to get the transaction lock to
   prevent deadlocks
+
+  WARNING: The data buffer given to the callback fn does NOT meet the
+  alignment restrictions malloc gives you.
 */
 int tdb_traverse(struct tdb_context *tdb, 
 		 tdb_traverse_func fn, void *private_data)

=== modified file 'lib/tdb/docs/README'
--- a/lib/tdb/docs/README	2007-01-25 04:10:40 +0000
+++ b/lib/tdb/docs/README	2008-01-18 04:48:36 +0000
@@ -130,6 +130,9 @@
    a non-zero return value from fn() indicates that the traversal
    should stop. Traversal callbacks may not start transactions.
 
+   WARNING: The data buffer given to the callback fn does NOT meet the
+   alignment restrictions malloc gives you.
+
 ----------------------------------------------------------------------
 int tdb_traverse_read(TDB_CONTEXT *tdb, int (*fn)(TDB_CONTEXT *tdb,
                      TDB_DATA key, TDB_DATA dbuf, void *state), void *state);

=== modified file 'lib/tdb/include/tdb.h'
--- a/lib/tdb/include/tdb.h	2008-01-14 04:11:10 +0000
+++ b/lib/tdb/include/tdb.h	2008-01-18 04:48:36 +0000
@@ -32,9 +32,9 @@
 
 
 /* flags to tdb_store() */
-#define TDB_REPLACE 1
-#define TDB_INSERT 2
-#define TDB_MODIFY 3
+#define TDB_REPLACE 1		/* Unused */
+#define TDB_INSERT 2 		/* Don't overwrite an existing entry */
+#define TDB_MODIFY 3		/* Don't create an existing entry    */
 
 /* flags for tdb_open() */
 #define TDB_DEFAULT 0 /* just a readability place holder */
@@ -157,7 +157,6 @@
 int tdb_validate_freelist(struct tdb_context *tdb, int *pnum_entries);
 int tdb_wipe_all(struct tdb_context *tdb);
 int tdb_freelist_size(struct tdb_context *tdb);
-int tdb_validate(struct tdb_context *tdb);
 
 extern TDB_DATA tdb_null;
 

=== modified file 'lib/tdb/tools/tdbtool.c'
--- a/lib/tdb/tools/tdbtool.c	2008-01-05 06:41:41 +0000
+++ b/lib/tdb/tools/tdbtool.c	2008-01-18 04:48:36 +0000
@@ -135,7 +135,7 @@
 	if (len<=0) return;
 	printf("[%03X] ",i);
 	for (i=0;i<len;) {
-		printf("%02X ",(int)buf[i]);
+		printf("%02X ",(int)((unsigned char)buf[i]));
 		i++;
 		if (i%8 == 0) printf(" ");
 		if (i%16 == 0) {      



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