e3c129b105
Enhance driver implementation to optionally use Erlang's asynchronous driver thread pool for all LevelDB operations with the intention to avoid blocking of Erlang's scheduler threads.
121 lines
4.1 KiB
C++
121 lines
4.1 KiB
C++
// The MIT License
|
|
//
|
|
// Copyright (C) 2011 by Joseph Wayne Norton <norton@alum.mit.edu>
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
// THE SOFTWARE.
|
|
|
|
#ifndef LETS_NIF_LIB_H
|
|
#define LETS_NIF_LIB_H
|
|
|
|
#include <string>
|
|
|
|
#include "leveldb/db.h"
|
|
#include "leveldb/cache.h"
|
|
#include "leveldb/slice.h"
|
|
#include "leveldb/write_batch.h"
|
|
|
|
#include "erl_nif.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef struct {
|
|
long buflen;
|
|
char buf[1];
|
|
} Binary;
|
|
|
|
enum Type {
|
|
SET = 0x0,
|
|
ORDERED_SET = 0x1
|
|
};
|
|
|
|
enum PrivacyType {
|
|
PRIVATE = 0x0,
|
|
PROTECTED = 0x1,
|
|
PUBLIC = 0x2
|
|
};
|
|
|
|
enum DBOpType {
|
|
OPEN = 0x0,
|
|
DESTROY = 0x1,
|
|
REPAIR = 0x2
|
|
};
|
|
|
|
typedef struct
|
|
{
|
|
bool async;
|
|
bool alive;
|
|
char type;
|
|
char privacy;
|
|
std::string* name;
|
|
leveldb::Options db_options;
|
|
leveldb::ReadOptions db_read_options;
|
|
leveldb::WriteOptions db_write_options;
|
|
size_t db_block_cache_size;
|
|
leveldb::Cache* db_block_cache;
|
|
leveldb::DB* db;
|
|
ErlNifUInt64 db_memory;
|
|
ErlNifUInt64 db_size;
|
|
} lets_impl;
|
|
|
|
extern ERL_NIF_TERM lets_atom_true;
|
|
extern ERL_NIF_TERM lets_atom_false;
|
|
extern ERL_NIF_TERM lets_atom_set;
|
|
extern ERL_NIF_TERM lets_atom_ordered_set;
|
|
extern ERL_NIF_TERM lets_atom_private;
|
|
extern ERL_NIF_TERM lets_atom_protected;
|
|
extern ERL_NIF_TERM lets_atom_public;
|
|
extern ERL_NIF_TERM lets_atom_create_if_missing;
|
|
extern ERL_NIF_TERM lets_atom_error_if_exists;
|
|
extern ERL_NIF_TERM lets_atom_paranoid_checks;
|
|
extern ERL_NIF_TERM lets_atom_write_buffer_size;
|
|
extern ERL_NIF_TERM lets_atom_max_open_files;
|
|
extern ERL_NIF_TERM lets_atom_block_cache_size;
|
|
extern ERL_NIF_TERM lets_atom_block_size;
|
|
extern ERL_NIF_TERM lets_atom_compression;
|
|
extern ERL_NIF_TERM lets_atom_no;
|
|
extern ERL_NIF_TERM lets_atom_snappy;
|
|
extern ERL_NIF_TERM lets_atom_async;
|
|
extern ERL_NIF_TERM lets_atom_block_restart_interval;
|
|
extern ERL_NIF_TERM lets_atom_verify_checksums;
|
|
extern ERL_NIF_TERM lets_atom_fill_cache;
|
|
extern ERL_NIF_TERM lets_atom_sync;
|
|
extern ERL_NIF_TERM lets_atom_end_of_table;
|
|
|
|
// prototypes
|
|
extern bool lets_nif_lib_init(ErlNifEnv* env);
|
|
|
|
extern bool lets_init(lets_impl& impl,
|
|
const char type, const char privacy, const char* name, const size_t namelen);
|
|
extern bool lets_create(lets_impl& impl,
|
|
const char op);
|
|
|
|
extern bool lets_parse_options(ErlNifEnv* env, lets_impl& impl,
|
|
ERL_NIF_TERM& options, const ERL_NIF_TERM& options_len);
|
|
extern bool lets_parse_read_options(ErlNifEnv* env, lets_impl& impl,
|
|
ERL_NIF_TERM& options, const ERL_NIF_TERM& options_len);
|
|
extern bool lets_parse_write_options(ErlNifEnv* env, lets_impl& impl,
|
|
ERL_NIF_TERM& options, const ERL_NIF_TERM& options_len);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* LETS_NIF_LIB_H */
|