blob: f7471b72d4871157d35025d4b88da3f602fc7f4e [file] [log] [blame]
/*
* Copyright 2016 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SPEEDTEST_UTILS_H
#define SPEEDTEST_UTILS_H
#include <future>
#include <memory>
#include <string>
#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
TypeName(const TypeName&) = delete; \
TypeName& operator=(const TypeName&) = delete
namespace speedtest {
template <typename F, typename... Ts>
inline std::future<typename std::result_of<F(Ts...)>::type>
ReallyAsync(F&& f, Ts&&... params) {
return std::async(std::launch::async, std::forward<F>(f),
std::forward<Ts>(params)...);
}
// Return relative time in microseconds
// This isn't convertible to an absolute date and time
long SystemTimeMicros();
// Return a string representation of n
std::string to_string(long n);
// Round a double to a minimum number of significant digits
std::string round(double d, int digits);
// Return 1 - (shorter / larger)
double variance(double d1, double d2);
// Convert bytes and time in micros to speed in megabits
double ToMegabits(long bytes, long micros);
// Convert to milliseconds, round to at least 3 significant figures.
std::string ToMillis(long micros);
// Parse an int.
// If successful, write result to result and return true.
// If result is null or the int can't be parsed, return false.
bool ParseInt(const std::string &str, int *result);
// Trim from start in place
// Caller retains ownership
void LeftTrim(std::string *s);
// Trim from end in place
// Caller retains ownership
void RightTrim(std::string *s);
// Trim from both ends in place
// Caller retains ownership
void Trim(std::string *s);
std::shared_ptr<std::string> MakeRandomData(size_t size);
} // namespace speedtst
#endif // SPEEDTEST_UTILS_H