X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Ftdb2%2Fprivate.h;h=b709ee95b97375845a06814998b37a5b711bbfb1;hb=2960e90f2d036935273d163593839d3777be7980;hp=8e7df501b716a139c77e8de2ff673fe1afa55266;hpb=2b5cb9bd6be4e61870ba7a400d1a9d91c5933371;p=ccan

diff --git a/ccan/tdb2/private.h b/ccan/tdb2/private.h
index 8e7df501..b709ee95 100644
--- a/ccan/tdb2/private.h
+++ b/ccan/tdb2/private.h
@@ -300,7 +300,8 @@ enum tdb_lock_flags {
 	TDB_LOCK_NOCHECK = 4,
 };
 
-struct tdb_lock_type {
+struct tdb_lock {
+	struct tdb_context *owner;
 	uint32_t off;
 	uint32_t count;
 	uint32_t ltype;
@@ -315,21 +316,35 @@ struct tdb_access_hdr {
 	bool convert;
 };
 
-struct tdb_context {
-	/* Filename of the database. */
-	const char *name;
+struct tdb_file {
+	/* Single list of all TDBs, to detect multiple opens. */
+	struct tdb_file *next;
 
 	/* Mmap (if any), or malloc (for TDB_INTERNAL). */
 	void *map_ptr;
 
-	/* Are we accessing directly? (debugging check). */
-	int direct_access;
+	/* How much space has been mapped (<= current file size) */
+	tdb_len_t map_size;
 
-	 /* Open file descriptor (undefined for TDB_INTERNAL). */
+	/* The file descriptor (-1 for TDB_INTERNAL). */
 	int fd;
 
-	/* How much space has been mapped (<= current file size) */
-	tdb_len_t map_size;
+	/* Lock information */
+	struct tdb_lock allrecord_lock;
+	size_t num_lockrecs;
+	struct tdb_lock *lockrecs;
+
+	/* Identity of this file. */
+	dev_t device;
+	ino_t inode;
+};
+
+struct tdb_context {
+	/* 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;
@@ -365,20 +380,13 @@ struct tdb_context {
 	/* IO methods: changes for transactions. */
 	const struct tdb_methods *methods;
 
-	/* Lock information */
-	struct tdb_lock_type allrecord_lock;
-	size_t num_lockrecs;
-	struct tdb_lock_type *lockrecs;
-
 	struct tdb_attribute_stats *stats;
 
 	/* Direct access information */
 	struct tdb_access_hdr *access;
 
-	/* Single list of all TDBs, to avoid multiple opens. */
-	struct tdb_context *next;
-	dev_t device;
-	ino_t inode;
+	/* The actual file information */
+	struct tdb_file *file;
 };
 
 struct tdb_methods {
@@ -467,7 +475,7 @@ void tdb_io_init(struct tdb_context *tdb);
 void *tdb_convert(const struct tdb_context *tdb, void *buf, tdb_len_t size);
 
 /* Unmap and try to map the tdb. */
-void tdb_munmap(struct tdb_context *tdb);
+void tdb_munmap(struct tdb_file *file);
 void tdb_mmap(struct tdb_context *tdb);
 
 /* Either alloc a copy, or give direct access.  Release frees or noop. */
@@ -521,8 +529,6 @@ void add_stat_(struct tdb_context *tdb, uint64_t *stat, size_t val);
 	} while (0)
 
 /* lock.c: */
-void tdb_lock_init(struct tdb_context *tdb);
-
 /* Lock/unlock a range of hashes. */
 enum TDB_ERROR tdb_lock_hashes(struct tdb_context *tdb,
 			       tdb_off_t hash_lock, tdb_len_t hash_range,
@@ -531,6 +537,9 @@ enum TDB_ERROR tdb_unlock_hashes(struct tdb_context *tdb,
 				 tdb_off_t hash_lock,
 				 tdb_len_t hash_range, int ltype);
 
+/* For closing the file. */
+void tdb_unlock_all(struct tdb_context *tdb);
+
 /* Lock/unlock a particular free bucket. */
 enum TDB_ERROR tdb_lock_free_bucket(struct tdb_context *tdb, tdb_off_t b_off,
 				    enum tdb_lock_flags waitflag);