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Make RDB types/opcodes explicit; load/save object type

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This commit is contained in:
Pieter Noordhuis
2011-05-13 22:14:39 +02:00
parent 2e4b0e7727
commit f1d8e4968e
5 changed files with 119 additions and 99 deletions
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27
src/rdb.h
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@ -7,6 +7,31 @@
/* TBD: include only necessary headers. */
#include "redis.h"
/* Dup object types to RDB object types. Only reason is readability (are we
* dealing with RDB types or with in-memory object types?). */
#define REDIS_RDB_TYPE_STRING 0
#define REDIS_RDB_TYPE_LIST 1
#define REDIS_RDB_TYPE_SET 2
#define REDIS_RDB_TYPE_ZSET 3
#define REDIS_RDB_TYPE_HASH 4
/* Object types for encoded objects. */
#define REDIS_RDB_TYPE_HASH_ZIPMAP 9
#define REDIS_RDB_TYPE_LIST_ZIPLIST 10
#define REDIS_RDB_TYPE_SET_INTSET 11
#define REDIS_RDB_TYPE_ZSET_ZIPLIST 12
/* Test if a type is an object type. */
#define rdbIsObjectType(t) ((t >= 0 && t <= 4) || (t >= 9 && t <= 12))
/* Special RDB opcodes (saved/loaded with rdbSaveType/rdbLoadType). */
#define REDIS_RDB_OPCODE_EXPIRETIME 253
#define REDIS_RDB_OPCODE_SELECTDB 254
#define REDIS_RDB_OPCODE_EOF 255
/* Test if a type is an opcode. */
#define rdbIsOpcode(t) (t >= 253 && t <= 255)
int rdbLoad(char *filename);
int rdbSaveBackground(char *filename);
void rdbRemoveTempFile(pid_t childpid);
@ -22,5 +47,7 @@ time_t rdbLoadTime(rio *rdb);
robj *rdbLoadStringObject(rio *rdb);
int rdbSaveType(rio *rdb, unsigned char type);
int rdbSaveLen(rio *rdb, uint32_t len);
int rdbSaveObjectType(rio *rdb, robj *o);
int rdbLoadObjectType(rio *rdb);
#endif