小组成员: 曹可心-10223903406 朴祉燕-10224602413

43 lines
1.4 KiB

// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
//
// Must not be included from any .h files to avoid polluting the namespace
// with macros.
#ifndef STORAGE_LEVELDB_UTIL_LOGGING_H_
#define STORAGE_LEVELDB_UTIL_LOGGING_H_
#include <stdio.h>
#include <stdint.h>
#include <string>
#include "port/port.h"
namespace leveldb {
class Slice;
class WritableFile;
// Append a human-readable printout of "num" to *str
extern void AppendNumberTo(std::string* str, uint64_t num);
// Append a human-readable printout of "value" to *str.
// Escapes any non-printable characters found in "value".
extern void AppendEscapedStringTo(std::string* str, const Slice& value);
// Return a human-readable printout of "num"
extern std::string NumberToString(uint64_t num);
// Return a human-readable version of "value".
// Escapes any non-printable characters found in "value".
extern std::string EscapeString(const Slice& value);
// Parse a human-readable number from "*in" into *value. On success,
// advances "*in" past the consumed number and sets "*val" to the
// numeric value. Otherwise, returns false and leaves *in in an
// unspecified state.
extern bool ConsumeDecimalNumber(Slice* in, uint64_t* val);
} // namespace leveldb
#endif // STORAGE_LEVELDB_UTIL_LOGGING_H_