检查caffe做的leveldb格式的数据的正确性

check_leveldb.cpp

#include <assert.h>
#include <iostream>
#include "leveldb/db.h"
#include "gflags/gflags.h"
#include "time.h"
DEFINE_string(leveldbname, "", "leveldb name");
  int main(int argc, char** argv) {

    ::google::ParseCommandLineFlags(&argc, &argv, true);
    leveldb::DB* db;
    leveldb::Options options;
    options.create_if_missing = false;
    leveldb::Status status = leveldb::DB::Open(options, FLAGS_leveldbname, &db);
    if(!status.ok()) {
      std::cerr << status.ToString() << std::endl;
    } else {
    
      std::cout << status.ToString() << std::endl;
    }
    assert(status.ok());
    leveldb::Iterator* it = db->NewIterator(leveldb::ReadOptions());

    int i=0;
    for (it->SeekToFirst(); it->Valid(); it->Next()) {
      //std::cout << it->key().ToString() << std::endl;
      ++i;
      if(i>=10000) {
        break;
      }
    }
    assert(it->status().ok()); 
  }