// Copyright (c) 2013, 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. // // 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. #pragma once #include #include #include #include "port/port.h" namespace rocksdb { class Slice; // Append a human-readable time in micros. int AppendHumanMicros(uint64_t micros, char* output, int len); // Append a human-readable size in bytes int AppendHumanBytes(uint64_t bytes, char* output, int len); // 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 string printout of "num" extern std::string NumberToString(uint64_t num); // Return a human-readable version of num. // for num >= 10.000, prints "xxK" // for num >= 10.000.000, prints "xxM" // for num >= 10.000.000.000, prints "xxG" extern std::string NumberToHumanString(int64_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 rocksdb