rocksdb ubuntu c++源码编译测试

环境： ubuntu16.4 需要安装 snappy gflage bz2 zstd 以及g++ 其中zstd是facebook开放源代码里的压缩的库

git clonehttps://github.com/facebook/rocksdb.git

cd rocksdb

make static_lib 成功生成 librocksdb.a静太库(使用动态库，make share_lib)

cd examples/

测试simple_example.cc 编译命令：

g++ simple_example.cc -o test -I ../include ../librocksdb.a -std=c++11 -lpthread -lrt -lsnappy -lgflags -lz -lbz2 -lzstd 成功后生成test可执行文件

./test

修改simple_example

// copyright (c) 2011-present,Facebook,Inc.  All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.

#include <cstdio>
#include <string>
#include <iostream>

#include "rocksdb/db.h"
#include "rocksdb/slice.h"
#include "rocksdb/options.h"

using namespace rocksdb;
using namespace std;

std::string kDBPath = "/tmp/rocksdb_simple_example";

int main() {
  DB* db;
  Options options;
  // Optimize RocksDB. This is the easiest way to get RocksDB to perform well
  options.IncreaseParallelism();
  options.OptimizeLevelStyleCompaction();
  // create the DB if it's not already present
  options.create_if_missing = true;

  // open DB
  Status s = DB::Open(options,kDBPath,&db);
  assert(s.ok());

  // Put key-value
  s = db->Put(WriteOptions(),"key1","value");
  assert(s.ok());
  std::string value;
  // get value
  s = db->Get(ReadOptions(),&value);
  assert(s.ok());
  assert(value == "value");

  std::cout << value << std::endl;

  // atomically apply a set of updates
  {
    WriteBatch batch;
    batch.Delete("key1");
    batch.Put("key2",value);
    s = db->Write(WriteOptions(),&batch);
  }

  s = db->Get(ReadOptions(),&value);
  assert(s.IsNotFound());

  db->Get(ReadOptions(),"key2",&value);
  assert(value == "value");

  std::cout << value << std::endl;

  delete db;

  return 0;
}

再次编译，输出value value