| // Copyright 2010 The Goma Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| |
| #ifndef DEVTOOLS_GOMA_CLIENT_SIMPLE_TIMER_H_ |
| #define DEVTOOLS_GOMA_CLIENT_SIMPLE_TIMER_H_ |
| |
| #ifdef _WIN32 |
| # include <Windows.h> |
| #elif defined(__linux__) |
| # include <time.h> |
| #elif defined(__MACH__) |
| # include <cstdint> |
| #else |
| # error "unknown platform" |
| #endif |
| |
| #include "absl/time/time.h" |
| |
| namespace devtools_goma { |
| |
| class SimpleTimer { |
| public: |
| enum CtorFlag { NO_START, START }; |
| explicit SimpleTimer(CtorFlag cf) { |
| if (cf == START) { |
| Start(); |
| } |
| } |
| SimpleTimer() { |
| Start(); |
| } |
| |
| void Start(); |
| |
| // Return elapsed time in seconds. |
| double GetInSeconds() const; |
| |
| // Returns elapsed time in milliseconds for short interval. |
| // 2^31 / 1000 / 3600 / 24 ~= 24.8, so roughly it would round about 24 days. |
| int GetInIntMilliseconds() const; |
| |
| // Return elapsed time in milliseconds. |
| long long GetInMilliseconds() const; |
| |
| // Return elapsed time in nanoseconds. |
| long long GetInNanoseconds() const; |
| |
| // Returns elapsed time as absl::Duration. |
| // TODO: Remove the other Get* functions. |
| absl::Duration GetDuration() const; |
| |
| private: |
| #ifdef _WIN32 |
| LARGE_INTEGER start_time_; |
| LARGE_INTEGER frequency_; |
| #elif defined(__linux__) |
| struct timespec start_time_; |
| #elif defined(__MACH__) |
| uint64_t start_time_; |
| #endif |
| }; |
| |
| } // namespace devtools_goma |
| |
| #endif // DEVTOOLS_GOMA_CLIENT_SIMPLE_TIMER_H_ |