X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftdb2%2Ftdb1.h;h=e448d75d640e4669557114d1ed85b96b7c6cb888;hp=3869373fbe8b47cdbae4c0d2f4c03fc47f0173c2;hb=98c754ffe65bc335f66161d6cc8705d4ea2710ec;hpb=3004f7e89a5978064b4fb29c1027e6d0d39e9418 diff --git a/ccan/tdb2/tdb1.h b/ccan/tdb2/tdb1.h index 3869373f..e448d75d 100644 --- a/ccan/tdb2/tdb1.h +++ b/ccan/tdb2/tdb1.h @@ -36,111 +36,70 @@ #endif -/** Flags for tdb1_open() */ -#define TDB1_DEFAULT 0 /** just a readability place holder */ -#define TDB1_CLEAR_IF_FIRST 1 /** If this is the first open, wipe the db */ -#define TDB1_INTERNAL 2 /** Don't store on disk */ -#define TDB1_NOLOCK 4 /** Don't do any locking */ -#define TDB1_NOMMAP 8 /** Don't use mmap */ -#define TDB1_CONVERT 16 /** Convert endian (internal use) */ -#define TDB1_BIGENDIAN 32 /** Header is big-endian (internal use) */ -#define TDB1_NOSYNC 64 /** Don't use synchronous transactions */ -#define TDB1_SEQNUM 128 /** Maintain a sequence number */ -#define TDB1_VOLATILE 256 /** Activate the per-hashchain freelist, default 5 */ -#define TDB1_ALLOW_NESTING 512 /** Allow transactions to nest */ -#define TDB1_DISALLOW_NESTING 1024 /** Disallow transactions to nest */ - -/** This is the context structure that is returned from a db open. */ -typedef struct tdb1_context TDB1_CONTEXT; - -typedef int (*tdb1_traverse_func)(struct tdb1_context *, TDB_DATA, TDB_DATA, void *); -typedef void (*tdb1_log_func)(struct tdb1_context *, enum tdb_log_level, enum TDB_ERROR, - const char *, void *); -typedef unsigned int (*tdb1_hash_func)(TDB_DATA *key); - -struct tdb1_logging_context { - tdb1_log_func log_fn; - void *log_private; -}; - -struct tdb1_context *tdb1_open(const char *name, int hash_size, int tdb1_flags, - int open_flags, mode_t mode); - -struct tdb1_context *tdb1_open_ex(const char *name, int hash_size, int tdb1_flags, - int open_flags, mode_t mode, - const struct tdb1_logging_context *log_ctx, - tdb1_hash_func hash_fn); - -void tdb1_set_max_dead(struct tdb1_context *tdb, int max_dead); - -TDB_DATA tdb1_fetch(struct tdb1_context *tdb, TDB_DATA key); - -int tdb1_parse_record(struct tdb1_context *tdb, TDB_DATA key, - int (*parser)(TDB_DATA key, TDB_DATA data, - void *private_data), - void *private_data); - -int tdb1_delete(struct tdb1_context *tdb, TDB_DATA key); +typedef int (*tdb1_traverse_func)(struct tdb_context *, TDB_DATA, TDB_DATA, void *); -int tdb1_store(struct tdb1_context *tdb, TDB_DATA key, TDB_DATA dbuf, int flag); +void tdb1_set_max_dead(struct tdb_context *tdb, int max_dead); -int tdb1_append(struct tdb1_context *tdb, TDB_DATA key, TDB_DATA new_dbuf); +TDB_DATA tdb1_fetch(struct tdb_context *tdb, TDB_DATA key); -int tdb1_close(struct tdb1_context *tdb); +int tdb1_parse_record(struct tdb_context *tdb, TDB_DATA key, + int (*parser)(TDB_DATA key, TDB_DATA data, + void *private_data), + void *private_data); -TDB_DATA tdb1_firstkey(struct tdb1_context *tdb); +int tdb1_delete(struct tdb_context *tdb, TDB_DATA key); -TDB_DATA tdb1_nextkey(struct tdb1_context *tdb, TDB_DATA key); +int tdb1_append(struct tdb_context *tdb, TDB_DATA key, TDB_DATA new_dbuf); -int tdb1_traverse(struct tdb1_context *tdb, tdb1_traverse_func fn, void *private_data); +TDB_DATA tdb1_firstkey(struct tdb_context *tdb); -int tdb1_traverse_read(struct tdb1_context *tdb, tdb1_traverse_func fn, void *private_data); +TDB_DATA tdb1_nextkey(struct tdb_context *tdb, TDB_DATA key); -int tdb1_exists(struct tdb1_context *tdb, TDB_DATA key); +int tdb1_traverse(struct tdb_context *tdb, tdb1_traverse_func fn, void *private_data); -int tdb1_lockall(struct tdb1_context *tdb); +int tdb1_traverse_read(struct tdb_context *tdb, tdb1_traverse_func fn, void *private_data); -int tdb1_unlockall(struct tdb1_context *tdb); +int tdb1_exists(struct tdb_context *tdb, TDB_DATA key); -int tdb1_lockall_read(struct tdb1_context *tdb); +int tdb1_lockall(struct tdb_context *tdb); -int tdb1_unlockall_read(struct tdb1_context *tdb); +int tdb1_unlockall(struct tdb_context *tdb); -int tdb1_transaction_start(struct tdb1_context *tdb); +int tdb1_lockall_read(struct tdb_context *tdb); -int tdb1_transaction_prepare_commit(struct tdb1_context *tdb); +int tdb1_unlockall_read(struct tdb_context *tdb); -int tdb1_transaction_commit(struct tdb1_context *tdb); +int tdb1_transaction_start(struct tdb_context *tdb); -int tdb1_transaction_cancel(struct tdb1_context *tdb); +int tdb1_transaction_prepare_commit(struct tdb_context *tdb); -int tdb1_get_seqnum(struct tdb1_context *tdb); +int tdb1_transaction_commit(struct tdb_context *tdb); -int tdb1_hash_size(struct tdb1_context *tdb); +int tdb1_get_seqnum(struct tdb_context *tdb); -void tdb1_increment_seqnum_nonblock(struct tdb1_context *tdb); +void tdb1_increment_seqnum_nonblock(struct tdb_context *tdb); -unsigned int tdb1_incompatible_hash(TDB_DATA *key); +uint64_t tdb1_incompatible_hash(const void *key, size_t len, uint64_t seed, void *); -int tdb1_check(struct tdb1_context *tdb, +int tdb1_check(struct tdb_context *tdb, int (*check) (TDB_DATA key, TDB_DATA data, void *private_data), void *private_data); /* @} ******************************************************************/ /* Low level locking functions: use with care */ -int tdb1_chainlock(struct tdb1_context *tdb, TDB_DATA key); -int tdb1_chainunlock(struct tdb1_context *tdb, TDB_DATA key); -int tdb1_chainlock_read(struct tdb1_context *tdb, TDB_DATA key); -int tdb1_chainunlock_read(struct tdb1_context *tdb, TDB_DATA key); +int tdb1_chainlock(struct tdb_context *tdb, TDB_DATA key); +int tdb1_chainunlock(struct tdb_context *tdb, TDB_DATA key); +int tdb1_chainlock_read(struct tdb_context *tdb, TDB_DATA key); +int tdb1_chainunlock_read(struct tdb_context *tdb, TDB_DATA key); /* wipe and repack */ -int tdb1_wipe_all(struct tdb1_context *tdb); -int tdb1_repack(struct tdb1_context *tdb); +int tdb1_wipe_all(struct tdb_context *tdb); +int tdb1_repack(struct tdb_context *tdb); /* Debug functions. Not used in production. */ -char *tdb1_summary(struct tdb1_context *tdb); +char *tdb1_summary(struct tdb_context *tdb); extern TDB_DATA tdb1_null;