X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftdb%2Ftdb_private.h;h=fe68d5116303630259fc9c31379035d77a8d046f;hp=a2dde30ccf145f173cb48d0c4f8846f7826dd919;hb=a879e3e2859e17496f29e14b8f393583b2c93f19;hpb=d6b6780d0bc3dbdaaf679bbc308f74042f933cfd

diff --git a/ccan/tdb/tdb_private.h b/ccan/tdb/tdb_private.h
index a2dde30c..fe68d511 100644
--- a/ccan/tdb/tdb_private.h
+++ b/ccan/tdb/tdb_private.h
@@ -134,7 +134,7 @@ void tdb_trace_2rec_retrec(struct tdb_context *tdb, const char *op,
 #endif /* !TDB_TRACE */
 
 /* lock offsets */
-#define GLOBAL_LOCK      0
+#define OPEN_LOCK        0
 #define ACTIVE_LOCK      4
 #define TRANSACTION_LOCK 8
 
@@ -183,7 +183,7 @@ struct tdb_header {
 };
 
 struct tdb_lock_type {
-	int list;
+	uint32_t off;
 	uint32_t count;
 	uint32_t ltype;
 };
@@ -223,7 +223,7 @@ struct tdb_context {
 	int read_only; /* opened read-only */
 	int traverse_read; /* read-only traversal */
 	int traverse_write; /* read-write traversal */
-	struct tdb_lock_type global_lock;
+	struct tdb_lock_type allrecord_lock;
 	int num_lockrecs;
 	struct tdb_lock_type *lockrecs; /* only real locks, all with count>0 */
 	enum TDB_ERROR ecode; /* error code for last tdb error */
@@ -241,7 +241,6 @@ struct tdb_context {
 	struct tdb_transaction *transaction;
 	int page_size;
 	int max_dead_records;
-	int transaction_lock_count;
 #ifdef TDB_TRACE
 	int tracefd;
 #endif
@@ -256,12 +255,19 @@ 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_nest_lock(struct tdb_context *tdb, uint32_t offset, int ltype,
+		  enum tdb_lock_flags flags);
+int tdb_nest_unlock(struct tdb_context *tdb, uint32_t offset, int ltype,
+		    bool mark_lock);
+bool tdb_have_locks(struct tdb_context *tdb);
 int tdb_unlock(struct tdb_context *tdb, int list, int ltype);
 int tdb_brlock(struct tdb_context *tdb,
 	       int rw_type, tdb_off_t offset, size_t len,
 	       enum tdb_lock_flags flags);
 int tdb_brunlock(struct tdb_context *tdb,
 		 int rw_type, tdb_off_t offset, size_t len);
+bool tdb_have_extra_locks(struct tdb_context *tdb);
+void tdb_release_extra_locks(struct tdb_context *tdb);
 int tdb_transaction_lock(struct tdb_context *tdb, int ltype);
 int tdb_transaction_unlock(struct tdb_context *tdb, int ltype);
 int tdb_brlock_upgrade(struct tdb_context *tdb, tdb_off_t offset, size_t len);