ledisdb/store/hyperleveldb/hyperleveldb_ext.h

40 lines
1.1 KiB
C
Raw Normal View History

2014-08-11 20:54:53 +04:00
// +build hyperleveldb
#ifndef HYPERLEVELDB_EXT_H
#define HYPERLEVELDB_EXT_H
#ifdef __cplusplus
extern "C" {
#endif
#include "hyperleveldb/c.h"
/* Returns NULL if not found. Otherwise stores the value in **valptr.
Stores the length of the value in *vallen.
Returns a context must be later to free*/
extern void* hyperleveldb_get_ext(
leveldb_t* db,
const leveldb_readoptions_t* options,
const char* key, size_t keylen,
char** valptr,
size_t* vallen,
char** errptr);
// Free context returns by hyperleveldb_get_ext
extern void hyperleveldb_get_free_ext(void* context);
// Below iterator functions like leveldb iterator but returns valid status for iterator
extern unsigned char hyperleveldb_iter_seek_to_first_ext(leveldb_iterator_t*);
extern unsigned char hyperleveldb_iter_seek_to_last_ext(leveldb_iterator_t*);
extern unsigned char hyperleveldb_iter_seek_ext(leveldb_iterator_t*, const char* k, size_t klen);
extern unsigned char hyperleveldb_iter_next_ext(leveldb_iterator_t*);
extern unsigned char hyperleveldb_iter_prev_ext(leveldb_iterator_t*);
#ifdef __cplusplus
}
#endif
#endif