X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftdb2%2Ftdb1.h;h=e448d75d640e4669557114d1ed85b96b7c6cb888;hp=12c13efe066b01281dc49984227e133ad8ea002a;hb=98c754ffe65bc335f66161d6cc8705d4ea2710ec;hpb=19e6c1a250ade1e7204ada17163294855585e825 diff --git a/ccan/tdb2/tdb1.h b/ccan/tdb2/tdb1.h index 12c13efe..e448d75d 100644 --- a/ccan/tdb2/tdb1.h +++ b/ccan/tdb2/tdb1.h @@ -26,201 +26,81 @@ You should have received a copy of the GNU Lesser General Public License along with this library; if not, see . */ +#include "tdb2.h" #ifndef _SAMBA_BUILD_ /* For mode_t */ #include /* For O_* flags. */ #include -/* For sig_atomic_t. */ -#include #endif -/** Flags to tdb1_store() */ -#define TDB1_REPLACE 1 /** Unused */ -#define TDB1_INSERT 2 /** Don't overwrite an existing entry */ -#define TDB1_MODIFY 3 /** Don't create an existing entry */ - -/** 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 */ -#define TDB1_INCOMPATIBLE_HASH 2048 /** Better hashing: can't be opened by tdb < 1.2.6. */ - -/** The tdb error codes */ -enum TDB1_ERROR {TDB1_SUCCESS=0, TDB1_ERR_CORRUPT, TDB1_ERR_IO, TDB1_ERR_LOCK, - TDB1_ERR_OOM, TDB1_ERR_EXISTS, TDB1_ERR_NOLOCK, TDB1_ERR_LOCK_TIMEOUT, - TDB1_ERR_NOEXIST, TDB1_ERR_EINVAL, TDB1_ERR_RDONLY, - TDB1_ERR_NESTING}; - -/** Debugging uses one of the following levels */ -enum tdb1_debug_level {TDB1_DEBUG_FATAL = 0, TDB1_DEBUG_ERROR, - TDB1_DEBUG_WARNING, TDB1_DEBUG_TRACE}; - -/** The tdb data structure */ -typedef struct TDB1_DATA { - unsigned char *dptr; - size_t dsize; -} TDB1_DATA; - -#ifndef PRINTF_ATTRIBUTE -#if (__GNUC__ >= 3) -/** Use gcc attribute to check printf fns. a1 is the 1-based index of - * the parameter containing the format, and a2 the index of the first - * argument. Note that some gcc 2.x versions don't handle this - * properly **/ -#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2))) -#else -#define PRINTF_ATTRIBUTE(a1, a2) -#endif -#endif - -/** 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 *, TDB1_DATA, TDB1_DATA, void *); -typedef void (*tdb1_log_func)(struct tdb1_context *, enum tdb1_debug_level, const char *, ...) PRINTF_ATTRIBUTE(3, 4); -typedef unsigned int (*tdb1_hash_func)(TDB1_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); -int tdb1_reopen(struct tdb1_context *tdb); +typedef int (*tdb1_traverse_func)(struct tdb_context *, TDB_DATA, TDB_DATA, void *); -int tdb1_reopen_all(int parent_longlived); +void tdb1_set_max_dead(struct tdb_context *tdb, int max_dead); -void tdb1_set_logging_function(struct tdb1_context *tdb, const struct tdb1_logging_context *log_ctx); +TDB_DATA tdb1_fetch(struct tdb_context *tdb, TDB_DATA key); -enum TDB1_ERROR tdb1_error(struct tdb1_context *tdb); - -const char *tdb1_errorstr(struct tdb1_context *tdb); - -TDB1_DATA tdb1_fetch(struct tdb1_context *tdb, TDB1_DATA key); - -int tdb1_parse_record(struct tdb1_context *tdb, TDB1_DATA key, - int (*parser)(TDB1_DATA key, TDB1_DATA data, +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); -int tdb1_delete(struct tdb1_context *tdb, TDB1_DATA key); - -int tdb1_store(struct tdb1_context *tdb, TDB1_DATA key, TDB1_DATA dbuf, int flag); - -int tdb1_append(struct tdb1_context *tdb, TDB1_DATA key, TDB1_DATA new_dbuf); - -int tdb1_close(struct tdb1_context *tdb); - -TDB1_DATA tdb1_firstkey(struct tdb1_context *tdb); - -TDB1_DATA tdb1_nextkey(struct tdb1_context *tdb, TDB1_DATA key); - -int tdb1_traverse(struct tdb1_context *tdb, tdb1_traverse_func fn, void *private_data); - -int tdb1_traverse_read(struct tdb1_context *tdb, tdb1_traverse_func fn, void *private_data); - -int tdb1_exists(struct tdb1_context *tdb, TDB1_DATA key); - -int tdb1_lockall(struct tdb1_context *tdb); - -int tdb1_lockall_nonblock(struct tdb1_context *tdb); - -int tdb1_unlockall(struct tdb1_context *tdb); - -int tdb1_lockall_read(struct tdb1_context *tdb); - -int tdb1_lockall_read_nonblock(struct tdb1_context *tdb); - -int tdb1_unlockall_read(struct tdb1_context *tdb); - -int tdb1_lockall_mark(struct tdb1_context *tdb); - -int tdb1_lockall_unmark(struct tdb1_context *tdb); - -const char *tdb1_name(struct tdb1_context *tdb); - -int tdb1_fd(struct tdb1_context *tdb); +int tdb1_delete(struct tdb_context *tdb, TDB_DATA key); -tdb1_log_func tdb1_log_fn(struct tdb1_context *tdb); +int tdb1_append(struct tdb_context *tdb, TDB_DATA key, TDB_DATA new_dbuf); -void *tdb1_get_logging_private(struct tdb1_context *tdb); +TDB_DATA tdb1_firstkey(struct tdb_context *tdb); -int tdb1_transaction_start(struct tdb1_context *tdb); +TDB_DATA tdb1_nextkey(struct tdb_context *tdb, TDB_DATA key); -int tdb1_transaction_start_nonblock(struct tdb1_context *tdb); +int tdb1_traverse(struct tdb_context *tdb, tdb1_traverse_func fn, void *private_data); -int tdb1_transaction_prepare_commit(struct tdb1_context *tdb); +int tdb1_traverse_read(struct tdb_context *tdb, tdb1_traverse_func fn, void *private_data); -int tdb1_transaction_commit(struct tdb1_context *tdb); +int tdb1_exists(struct tdb_context *tdb, TDB_DATA key); -int tdb1_transaction_cancel(struct tdb1_context *tdb); +int tdb1_lockall(struct tdb_context *tdb); -int tdb1_get_seqnum(struct tdb1_context *tdb); +int tdb1_unlockall(struct tdb_context *tdb); -int tdb1_hash_size(struct tdb1_context *tdb); +int tdb1_lockall_read(struct tdb_context *tdb); -size_t tdb1_map_size(struct tdb1_context *tdb); +int tdb1_unlockall_read(struct tdb_context *tdb); -int tdb1_get_flags(struct tdb1_context *tdb); +int tdb1_transaction_start(struct tdb_context *tdb); -void tdb1_add_flags(struct tdb1_context *tdb, unsigned flag); +int tdb1_transaction_prepare_commit(struct tdb_context *tdb); -void tdb1_remove_flags(struct tdb1_context *tdb, unsigned flag); +int tdb1_transaction_commit(struct tdb_context *tdb); -void tdb1_enable_seqnum(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_jenkins_hash(TDB1_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 (*check) (TDB1_DATA key, TDB1_DATA data, void *private_data), +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, TDB1_DATA key); -int tdb1_chainlock_nonblock(struct tdb1_context *tdb, TDB1_DATA key); -int tdb1_chainunlock(struct tdb1_context *tdb, TDB1_DATA key); -int tdb1_chainlock_read(struct tdb1_context *tdb, TDB1_DATA key); -int tdb1_chainunlock_read(struct tdb1_context *tdb, TDB1_DATA key); -int tdb1_chainlock_mark(struct tdb1_context *tdb, TDB1_DATA key); -int tdb1_chainlock_unmark(struct tdb1_context *tdb, TDB1_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); -void tdb1_setalarm_sigptr(struct tdb1_context *tdb, volatile sig_atomic_t *sigptr); /* 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. */ -void tdb1_dump_all(struct tdb1_context *tdb); -int tdb1_printfreelist(struct tdb1_context *tdb); -int tdb1_validate_freelist(struct tdb1_context *tdb, int *pnum_entries); -int tdb1_freelist_size(struct tdb1_context *tdb); -char *tdb1_summary(struct tdb1_context *tdb); +char *tdb1_summary(struct tdb_context *tdb); -extern TDB1_DATA tdb1_null; +extern TDB_DATA tdb1_null; #endif /* tdb1.h */