100 lines
3 KiB
C++
100 lines
3 KiB
C++
// The MIT License
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//
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// Copyright (C) 2011 by Joseph Wayne Norton <norton@alum.mit.edu>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#ifndef LETS_DRV_LIB_H
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#define LETS_DRV_LIB_H
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#include <string>
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#include "leveldb/db.h"
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#include "leveldb/cache.h"
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#include "leveldb/slice.h"
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#include "leveldb/write_batch.h"
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#include "erl_driver.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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long buflen;
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char buf[1];
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} Binary;
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enum Type {
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SET = 0x0,
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ORDERED_SET = 0x1
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};
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enum PrivacyType {
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PRIVATE = 0x0,
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PROTECTED = 0x1,
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PUBLIC = 0x2
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};
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enum DBOpType {
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OPEN = 0x0,
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DESTROY = 0x1,
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REPAIR = 0x2
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};
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typedef struct
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{
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char alive;
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char type;
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char privacy;
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std::string* name;
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leveldb::Options db_options;
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leveldb::ReadOptions db_read_options;
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leveldb::WriteOptions db_write_options;
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size_t db_block_cache_size;
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leveldb::Cache* db_block_cache;
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leveldb::DB* db;
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ErlDrvUInt64 db_memory;
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ErlDrvUInt64 db_size;
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} lets_impl;
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// prototypes
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extern bool lets_drv_lib_init();
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extern bool lets_init(lets_impl& impl,
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const char type, const char privacy, const char* name, const size_t namelen);
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extern bool lets_create(lets_impl& impl,
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const char op);
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extern bool lets_parse_options(lets_impl& impl,
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const char* buf, int len);
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extern bool lets_parse_read_options(lets_impl& impl,
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const char* buf, int len);
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extern bool lets_parse_write_options(lets_impl& impl,
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const char* buf, int len);
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// helpers
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extern int ei_inspect_atom(const char *buf, int *index, char *p);
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extern int ei_inspect_binary(const char *buf, int *index, void **p, long *lenp);
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#ifdef __cplusplus
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}
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#endif
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#endif /* LETS_DRV_LIB_H */
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