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-rw-r--r--lib/ext2fs/tdb.h215
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diff --git a/lib/ext2fs/tdb.h b/lib/ext2fs/tdb.h
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+#ifndef __TDB_H__
+#define __TDB_H__
+
+/*
+ Unix SMB/CIFS implementation.
+
+ trivial database library
+
+ Copyright (C) Andrew Tridgell 1999-2004
+
+ ** NOTE! The following LGPL license applies to the tdb
+ ** library. This does NOT imply that all of Samba is released
+ ** under the LGPL
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* flags to tdb_store() */
+#define TDB_REPLACE 1
+#define TDB_INSERT 2
+#define TDB_MODIFY 3
+
+/* flags for tdb_open() */
+#define TDB_DEFAULT 0 /* just a readability place holder */
+#define TDB_CLEAR_IF_FIRST 1
+#define TDB_INTERNAL 2 /* don't store on disk */
+#define TDB_NOLOCK 4 /* don't do any locking */
+#define TDB_NOMMAP 8 /* don't use mmap */
+#define TDB_CONVERT 16 /* convert endian (internal use) */
+#define TDB_BIGENDIAN 32 /* header is big-endian (internal use) */
+#define TDB_NOSYNC 64 /* don't use synchronous transactions */
+#define TDB_SEQNUM 128 /* maintain a sequence number */
+
+#define TDB_ERRCODE(code, ret) ((tdb->ecode = (code)), ret)
+
+/* error codes */
+enum TDB_ERROR {TDB_SUCCESS=0, TDB_ERR_CORRUPT, TDB_ERR_IO, TDB_ERR_LOCK,
+ TDB_ERR_OOM, TDB_ERR_EXISTS, TDB_ERR_NOLOCK, TDB_ERR_LOCK_TIMEOUT,
+ TDB_ERR_NOEXIST, TDB_ERR_EINVAL, TDB_ERR_RDONLY};
+
+/* debugging uses one of the following levels */
+enum tdb_debug_level {TDB_DEBUG_FATAL = 0, TDB_DEBUG_ERROR,
+ TDB_DEBUG_WARNING, TDB_DEBUG_TRACE};
+
+typedef struct TDB_DATA {
+ unsigned char *dptr;
+ size_t dsize;
+} TDB_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
+
+/* ext2fs tdb renames */
+#define tdb_open ext2fs_tdb_open
+#define tdb_open_ex ext2fs_tdb_open_ex
+#define tdb_set_max_dead ext2fs_tdb_set_max_dead
+#define tdb_reopen ext2fs_tdb_reopen
+#define tdb_reopen_all ext2fs_tdb_reopen_all
+#define tdb_set_logging_function ext2fs_tdb_set_logging_function
+#define tdb_error ext2fs_tdb_error
+#define tdb_errorstr ext2fs_tdb_errorstr
+#define tdb_fetch ext2fs_tdb_fetch
+#define tdb_parse_record ext2fs_tdb_parse_record
+#define tdb_delete ext2fs_tdb_delete
+#define tdb_store ext2fs_tdb_store
+#define tdb_append ext2fs_tdb_append
+#define tdb_close ext2fs_tdb_close
+#define tdb_firstkey ext2fs_tdb_firstkey
+#define tdb_nextkey ext2fs_tdb_nextkey
+#define tdb_traverse ext2fs_tdb_traverse
+#define tdb_traverse_read ext2fs_tdb_traverse_read
+#define tdb_exists ext2fs_tdb_exists
+#define tdb_lockall ext2fs_tdb_lockall
+#define tdb_unlockall ext2fs_tdb_unlockall
+#define tdb_lockall_read ext2fs_tdb_lockall_read
+#define tdb_unlockall_read ext2fs_tdb_unlockall_read
+#define tdb_name ext2fs_tdb_name
+#define tdb_fd ext2fs_tdb_fd
+#define tdb_log_fn ext2fs_tdb_log_fn
+#define tdb_get_logging_private ext2fs_tdb_get_logging_private
+#define tdb_transaction_start ext2fs_tdb_transaction_start
+#define tdb_transaction_commit ext2fs_tdb_transaction_commit
+#define tdb_transaction_cancel ext2fs_tdb_transaction_cancel
+#define tdb_transaction_recover ext2fs_tdb_transaction_recover
+#define tdb_get_seqnum ext2fs_tdb_get_seqnum
+#define tdb_hash_size ext2fs_tdb_hash_size
+#define tdb_map_size ext2fs_tdb_map_size
+#define tdb_get_flags ext2fs_tdb_get_flags
+#define tdb_chainlock ext2fs_tdb_chainlock
+#define tdb_chainunlock ext2fs_tdb_chainunlock
+#define tdb_chainlock_read ext2fs_tdb_chainlock_read
+#define tdb_chainunlock_read ext2fs_tdb_chainunlock_read
+#define tdb_dump_all ext2fs_tdb_dump_all
+#define tdb_printfreelist ext2fs_tdb_printfreelist
+#define tdb_validate_freelist ext2fs_tdb_validate_freelist
+#define tdb_chainlock_mark ext2fs_tdb_chainlock_mark
+#define tdb_chainlock_nonblock ext2fs_tdb_chainlock_nonblock
+#define tdb_chainlock_unmark ext2fs_tdb_chainlock_unmark
+#define tdb_enable_seqnum ext2fs_tdb_enable_seqnum
+#define tdb_increment_seqnum_nonblock ext2fs_tdb_increment_seqnum_nonblock
+#define tdb_lock_nonblock ext2fs_tdb_lock_nonblock
+#define tdb_lockall_mark ext2fs_tdb_lockall_mark
+#define tdb_lockall_nonblock ext2fs_tdb_lockall_nonblock
+#define tdb_lockall_read_nonblock ext2fs_tdb_lockall_read_nonblock
+#define tdb_lockall_unmark ext2fs_tdb_lockall_unmark
+#define tdb_flush ext2fs_tdb_flush
+
+/* this is the context structure that is returned from a db open */
+typedef struct tdb_context TDB_CONTEXT;
+
+typedef int (*tdb_traverse_func)(struct tdb_context *, TDB_DATA, TDB_DATA, void *);
+typedef void (*tdb_log_func)(struct tdb_context *, enum tdb_debug_level, const char *, ...) PRINTF_ATTRIBUTE(3, 4);
+typedef unsigned int (*tdb_hash_func)(TDB_DATA *key);
+
+struct tdb_logging_context {
+ tdb_log_func log_fn;
+ void *log_private;
+};
+
+struct tdb_context *tdb_open(const char *name, int hash_size, int tdb_flags,
+ int open_flags, mode_t mode);
+struct tdb_context *tdb_open_ex(const char *name, int hash_size, int tdb_flags,
+ int open_flags, mode_t mode,
+ const struct tdb_logging_context *log_ctx,
+ tdb_hash_func hash_fn);
+void tdb_set_max_dead(struct tdb_context *tdb, int max_dead);
+
+int tdb_reopen(struct tdb_context *tdb);
+int tdb_reopen_all(int parent_longlived);
+void tdb_set_logging_function(struct tdb_context *tdb, const struct tdb_logging_context *log_ctx);
+enum TDB_ERROR tdb_error(struct tdb_context *tdb);
+const char *tdb_errorstr(struct tdb_context *tdb);
+TDB_DATA tdb_fetch(struct tdb_context *tdb, TDB_DATA key);
+int tdb_parse_record(struct tdb_context *tdb, TDB_DATA key,
+ int (*parser)(TDB_DATA key, TDB_DATA data,
+ void *private_data),
+ void *private_data);
+int tdb_delete(struct tdb_context *tdb, TDB_DATA key);
+int tdb_store(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf, int flag);
+int tdb_append(struct tdb_context *tdb, TDB_DATA key, TDB_DATA new_dbuf);
+int tdb_close(struct tdb_context *tdb);
+TDB_DATA tdb_firstkey(struct tdb_context *tdb);
+TDB_DATA tdb_nextkey(struct tdb_context *tdb, TDB_DATA key);
+int tdb_traverse(struct tdb_context *tdb, tdb_traverse_func fn, void *);
+int tdb_traverse_read(struct tdb_context *tdb, tdb_traverse_func fn, void *);
+int tdb_exists(struct tdb_context *tdb, TDB_DATA key);
+int tdb_lockall(struct tdb_context *tdb);
+int tdb_lockall_nonblock(struct tdb_context *tdb);
+int tdb_unlockall(struct tdb_context *tdb);
+int tdb_lockall_read(struct tdb_context *tdb);
+int tdb_lockall_read_nonblock(struct tdb_context *tdb);
+int tdb_unlockall_read(struct tdb_context *tdb);
+int tdb_lockall_mark(struct tdb_context *tdb);
+int tdb_lockall_unmark(struct tdb_context *tdb);
+const char *tdb_name(struct tdb_context *tdb);
+int tdb_fd(struct tdb_context *tdb);
+tdb_log_func tdb_log_fn(struct tdb_context *tdb);
+void *tdb_get_logging_private(struct tdb_context *tdb);
+int tdb_transaction_start(struct tdb_context *tdb);
+int tdb_transaction_commit(struct tdb_context *tdb);
+int tdb_transaction_cancel(struct tdb_context *tdb);
+int tdb_transaction_recover(struct tdb_context *tdb);
+int tdb_get_seqnum(struct tdb_context *tdb);
+int tdb_hash_size(struct tdb_context *tdb);
+size_t tdb_map_size(struct tdb_context *tdb);
+int tdb_get_flags(struct tdb_context *tdb);
+void tdb_enable_seqnum(struct tdb_context *tdb);
+void tdb_increment_seqnum_nonblock(struct tdb_context *tdb);
+int tdb_flush(struct tdb_context *tdb);
+
+/* Low level locking functions: use with care */
+int tdb_chainlock(struct tdb_context *tdb, TDB_DATA key);
+int tdb_chainlock_nonblock(struct tdb_context *tdb, TDB_DATA key);
+int tdb_chainunlock(struct tdb_context *tdb, TDB_DATA key);
+int tdb_chainlock_read(struct tdb_context *tdb, TDB_DATA key);
+int tdb_chainunlock_read(struct tdb_context *tdb, TDB_DATA key);
+int tdb_chainlock_mark(struct tdb_context *tdb, TDB_DATA key);
+int tdb_chainlock_unmark(struct tdb_context *tdb, TDB_DATA key);
+
+/* Debug functions. Not used in production. */
+void tdb_dump_all(struct tdb_context *tdb);
+int tdb_printfreelist(struct tdb_context *tdb);
+int tdb_validate_freelist(struct tdb_context *tdb, int *pnum_entries);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* tdb.h */