| 1 | #ifndef _____LIB_UTIL_UTIL_TDB_H__
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| 2 | #define _____LIB_UTIL_UTIL_TDB_H__
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| 3 |
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| 4 |
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| 5 | /***************************************************************
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| 6 | Make a TDB_DATA and keep the const warning in one place
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| 7 | ****************************************************************/
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| 8 | TDB_DATA make_tdb_data(const uint8_t *dptr, size_t dsize);
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| 9 | bool tdb_data_equal(TDB_DATA t1, TDB_DATA t2);
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| 10 | TDB_DATA string_tdb_data(const char *string);
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| 11 | TDB_DATA string_term_tdb_data(const char *string);
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| 12 |
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| 13 | /****************************************************************************
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| 14 | Lock a chain by string. Return -1 if lock failed.
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| 15 | ****************************************************************************/
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| 16 | int tdb_lock_bystring(struct tdb_context *tdb, const char *keyval);
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| 17 |
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| 18 | /****************************************************************************
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| 19 | Unlock a chain by string.
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| 20 | ****************************************************************************/
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| 21 | void tdb_unlock_bystring(struct tdb_context *tdb, const char *keyval);
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| 22 |
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| 23 | /****************************************************************************
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| 24 | Read lock a chain by string. Return -1 if lock failed.
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| 25 | ****************************************************************************/
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| 26 | int tdb_read_lock_bystring(struct tdb_context *tdb, const char *keyval);
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| 27 |
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| 28 | /****************************************************************************
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| 29 | Read unlock a chain by string.
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| 30 | ****************************************************************************/
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| 31 | void tdb_read_unlock_bystring(struct tdb_context *tdb, const char *keyval);
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| 32 |
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| 33 | /****************************************************************************
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| 34 | Fetch a int32_t value by a arbitrary blob key, return -1 if not found.
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| 35 | Output is int32_t in native byte order.
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| 36 | ****************************************************************************/
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| 37 | int32_t tdb_fetch_int32_byblob(struct tdb_context *tdb, TDB_DATA key);
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| 38 |
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| 39 | /****************************************************************************
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| 40 | Fetch a int32_t value by string key, return -1 if not found.
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| 41 | Output is int32_t in native byte order.
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| 42 | ****************************************************************************/
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| 43 | int32_t tdb_fetch_int32(struct tdb_context *tdb, const char *keystr);
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| 44 |
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| 45 | /****************************************************************************
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| 46 | Store a int32_t value by an arbitary blob key, return 0 on success, -1 on failure.
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| 47 | Input is int32_t in native byte order. Output in tdb is in little-endian.
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| 48 | ****************************************************************************/
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| 49 | int tdb_store_int32_byblob(struct tdb_context *tdb, TDB_DATA key, int32_t v);
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| 50 |
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| 51 | /****************************************************************************
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| 52 | Store a int32_t value by string key, return 0 on success, -1 on failure.
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| 53 | Input is int32_t in native byte order. Output in tdb is in little-endian.
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| 54 | ****************************************************************************/
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| 55 | int tdb_store_int32(struct tdb_context *tdb, const char *keystr, int32_t v);
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| 56 |
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| 57 | /****************************************************************************
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| 58 | Fetch a uint32_t value by a arbitrary blob key, return -1 if not found.
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| 59 | Output is uint32_t in native byte order.
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| 60 | ****************************************************************************/
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| 61 | bool tdb_fetch_uint32_byblob(struct tdb_context *tdb, TDB_DATA key, uint32_t *value);
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| 62 |
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| 63 | /****************************************************************************
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| 64 | Fetch a uint32_t value by string key, return -1 if not found.
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| 65 | Output is uint32_t in native byte order.
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| 66 | ****************************************************************************/
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| 67 | bool tdb_fetch_uint32(struct tdb_context *tdb, const char *keystr, uint32_t *value);
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| 68 |
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| 69 | /****************************************************************************
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| 70 | Store a uint32_t value by an arbitary blob key, return 0 on success, -1 on failure.
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| 71 | Input is uint32_t in native byte order. Output in tdb is in little-endian.
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| 72 | ****************************************************************************/
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| 73 | bool tdb_store_uint32_byblob(struct tdb_context *tdb, TDB_DATA key, uint32_t value);
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| 74 |
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| 75 | /****************************************************************************
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| 76 | Store a uint32_t value by string key, return 0 on success, -1 on failure.
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| 77 | Input is uint32_t in native byte order. Output in tdb is in little-endian.
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| 78 | ****************************************************************************/
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| 79 | bool tdb_store_uint32(struct tdb_context *tdb, const char *keystr, uint32_t value);
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| 80 |
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| 81 | /****************************************************************************
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| 82 | Store a buffer by a null terminated string key. Return 0 on success, -1
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| 83 | on failure.
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| 84 | ****************************************************************************/
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| 85 | int tdb_store_bystring(struct tdb_context *tdb, const char *keystr, TDB_DATA data, int flags);
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| 86 |
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| 87 | /****************************************************************************
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| 88 | Fetch a buffer using a null terminated string key. Don't forget to call
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| 89 | free() on the result dptr.
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| 90 | ****************************************************************************/
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| 91 | TDB_DATA tdb_fetch_bystring(struct tdb_context *tdb, const char *keystr);
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| 92 |
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| 93 | /****************************************************************************
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| 94 | Delete an entry using a null terminated string key.
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| 95 | ****************************************************************************/
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| 96 | int tdb_delete_bystring(struct tdb_context *tdb, const char *keystr);
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| 97 |
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| 98 | /****************************************************************************
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| 99 | Atomic integer change. Returns old value. To create, set initial value in *oldval.
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| 100 | ****************************************************************************/
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| 101 | int32_t tdb_change_int32_atomic(struct tdb_context *tdb, const char *keystr, int32_t *oldval, int32_t change_val);
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| 102 |
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| 103 | /****************************************************************************
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| 104 | Atomic unsigned integer change. Returns old value. To create, set initial value in *oldval.
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| 105 | ****************************************************************************/
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| 106 | bool tdb_change_uint32_atomic(struct tdb_context *tdb, const char *keystr, uint32_t *oldval, uint32_t change_val);
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| 107 |
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| 108 | /****************************************************************************
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| 109 | Allow tdb_delete to be used as a tdb_traversal_fn.
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| 110 | ****************************************************************************/
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| 111 | int tdb_traverse_delete_fn(struct tdb_context *the_tdb, TDB_DATA key, TDB_DATA dbuf,
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| 112 | void *state);
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| 113 |
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| 114 | #endif /* _____LIB_UTIL_UTIL_TDB_H__ */
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| 115 |
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