src/rdb.h

   1 #ifndef __REDIS_RDB_H
   2 #define __REDIS_RDB_H
   3
   4 #include <stdio.h>
   5 #include "rio.h"
   6
   7 /* TBD: include only necessary headers. */
   8 #include "redis.h"
   9
  10 /* Dup object types to RDB object types. Only reason is readability (are we
  11  * dealing with RDB types or with in-memory object types?). */
  12 #define REDIS_RDB_TYPE_STRING 0
  13 #define REDIS_RDB_TYPE_LIST   1
  14 #define REDIS_RDB_TYPE_SET    2
  15 #define REDIS_RDB_TYPE_ZSET   3
  16 #define REDIS_RDB_TYPE_HASH   4
  17
  18 /* Object types for encoded objects. */
  19 #define REDIS_RDB_TYPE_HASH_ZIPMAP    9
  20 #define REDIS_RDB_TYPE_LIST_ZIPLIST  10
  21 #define REDIS_RDB_TYPE_SET_INTSET    11
  22 #define REDIS_RDB_TYPE_ZSET_ZIPLIST  12
  23
  24 /* Test if a type is an object type. */
  25 #define rdbIsObjectType(t) ((t >= 0 && t <= 4) || (t >= 9 && t <= 12))
  26
  27 /* Special RDB opcodes (saved/loaded with rdbSaveType/rdbLoadType). */
  28 #define REDIS_RDB_OPCODE_EXPIRETIME 253
  29 #define REDIS_RDB_OPCODE_SELECTDB   254
  30 #define REDIS_RDB_OPCODE_EOF        255
  31
  32 /* Test if a type is an opcode. */
  33 #define rdbIsOpcode(t) (t >= 253 && t <= 255)
  34
  35 int rdbLoad(char *filename);
  36 int rdbSaveBackground(char *filename);
  37 void rdbRemoveTempFile(pid_t childpid);
  38 int rdbSave(char *filename);
  39 int rdbSaveObject(rio *rdb, robj *o);
  40 off_t rdbSavedObjectLen(robj *o);
  41 off_t rdbSavedObjectPages(robj *o);
  42 robj *rdbLoadObject(int type, rio *rdb);
  43 void backgroundSaveDoneHandler(int exitcode, int bysignal);
  44 int rdbSaveKeyValuePair(rio *rdb, robj *key, robj *val, time_t expireitme, time_t now);
  45 int rdbLoadType(rio *rdb);
  46 time_t rdbLoadTime(rio *rdb);
  47 robj *rdbLoadStringObject(rio *rdb);
  48 int rdbSaveType(rio *rdb, unsigned char type);
  49 int rdbSaveLen(rio *rdb, uint32_t len);
  50 int rdbSaveObjectType(rio *rdb, robj *o);
  51 int rdbLoadObjectType(rio *rdb);
  52
  53 #endif