X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftdb2%2Fprivate.h;h=fdd505357433fadf607c98d96f385530b509ba6f;hp=b84c2f980db36252d6df496fcb00e12dc87619fa;hb=fbad02b680b6cbc33ae305ae1cbcdead4eedc7b1;hpb=de432e8f857ce23bccde7c6ffa3e7e21456df18b

diff --git a/ccan/tdb2/private.h b/ccan/tdb2/private.h
index b84c2f98..fdd50535 100644
--- a/ccan/tdb2/private.h
+++ b/ccan/tdb2/private.h
@@ -298,9 +298,6 @@ struct tdb_access_hdr {
 };
 
 struct tdb_file {
-	/* Single list of all TDBs, to detect multiple opens. */
-	struct tdb_file *next;
-
 	/* How many are sharing us? */
 	unsigned int refcnt;
 
@@ -325,38 +322,48 @@ struct tdb_file {
 };
 
 struct tdb_context {
+	/* Single list of all TDBs, to detect multiple opens. */
+	struct tdb_context *next;
+
 	/* Filename of the database. */
 	const char *name;
 
-	/* Are we accessing directly? (debugging check). */
-	int direct_access;
-
-	/* Operating read-only? (Opened O_RDONLY, or in traverse_read) */
-	bool read_only;
-
-	/* mmap read only? */
-	int mmap_flags;
-
-	/* the flags passed to tdb_open, for tdb_reopen. */
-	uint32_t flags;
-
 	/* Logging function */
 	void (*log_fn)(struct tdb_context *tdb,
 		       enum tdb_log_level level,
+		       enum TDB_ERROR ecode,
 		       const char *message,
 		       void *data);
 	void *log_data;
 
-	/* Hash function. */
-	uint64_t (*hash_fn)(const void *key, size_t len, uint64_t seed, void *);
-	void *hash_data;
-	uint64_t hash_seed;
+	/* Last error we returned. */
+	enum TDB_ERROR last_error;
+
+	/* The actual file information */
+	struct tdb_file *file;
+
+	/* Open flags passed to tdb_open. */
+	int open_flags;
 
 	/* low level (fnctl) lock functions. */
 	int (*lock_fn)(int fd, int rw, off_t off, off_t len, bool w, void *);
 	int (*unlock_fn)(int fd, int rw, off_t off, off_t len, void *);
 	void *lock_data;
 
+	/* the flags passed to tdb_open. */
+	uint32_t flags;
+
+	/* Our statistics. */
+	struct tdb_attribute_stats stats;
+
+	/* Are we accessing directly? (debugging check). */
+	int direct_access;
+
+	/* Hash function. */
+	uint64_t (*hash_fn)(const void *key, size_t len, uint64_t seed, void *);
+	void *hash_data;
+	uint64_t hash_seed;
+
 	/* Set if we are in a transaction. */
 	struct tdb_transaction *transaction;
 	
@@ -364,20 +371,16 @@ struct tdb_context {
 	tdb_off_t ftable_off;
 	unsigned int ftable;
 
+	/* Our open hook, if any. */
+	enum TDB_ERROR (*openhook)(int fd, void *data);
+	void *openhook_data;
+
 	/* IO methods: changes for transactions. */
 	const struct tdb_methods *methods;
 
-	/* Our statistics. */
-	struct tdb_attribute_stats stats;
-
 	/* Direct access information */
 	struct tdb_access_hdr *access;
 
-	/* Last error we returned. */
-	enum TDB_ERROR last_error;
-
-	/* The actual file information */
-	struct tdb_file *file;
 };
 
 struct tdb_methods {
@@ -542,7 +545,7 @@ bool tdb_has_hash_locks(struct tdb_context *tdb);
 enum TDB_ERROR tdb_allrecord_lock(struct tdb_context *tdb, int ltype,
 				  enum tdb_lock_flags flags, bool upgradable);
 void tdb_allrecord_unlock(struct tdb_context *tdb, int ltype);
-enum TDB_ERROR tdb_allrecord_upgrade(struct tdb_context *tdb);
+enum TDB_ERROR tdb_allrecord_upgrade(struct tdb_context *tdb, off_t start);
 
 /* Serialize db open. */
 enum TDB_ERROR tdb_lock_open(struct tdb_context *tdb,
@@ -558,6 +561,25 @@ bool tdb_has_expansion_lock(struct tdb_context *tdb);
 /* If it needs recovery, grab all the locks and do it. */
 enum TDB_ERROR tdb_lock_and_recover(struct tdb_context *tdb);
 
+/* Byte-range lock wrappers for TDB1 to access. */
+enum TDB_ERROR tdb_brlock(struct tdb_context *tdb,
+			  int rw_type, tdb_off_t offset, tdb_off_t len,
+			  enum tdb_lock_flags flags);
+
+enum TDB_ERROR tdb_brunlock(struct tdb_context *tdb,
+			    int rw_type, tdb_off_t offset, size_t len);
+
+enum TDB_ERROR tdb_nest_lock(struct tdb_context *tdb,
+			     tdb_off_t offset, int ltype,
+			     enum tdb_lock_flags flags);
+
+enum TDB_ERROR tdb_nest_unlock(struct tdb_context *tdb,
+			       tdb_off_t off, int ltype);
+
+enum TDB_ERROR tdb_lock_gradual(struct tdb_context *tdb,
+				int ltype, enum tdb_lock_flags flags,
+				tdb_off_t off, tdb_off_t len);
+
 /* Default lock and unlock functions. */
 int tdb_fcntl_lock(int fd, int rw, off_t off, off_t len, bool waitflag, void *);
 int tdb_fcntl_unlock(int fd, int rw, off_t off, off_t len, void *);