mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-08-22 03:32:13 +00:00
Also remove stuttering from the target names by dropping the 'dawn_' prefix. Bug: dawn:1275 Change-Id: I3263f1236f71bf23795b4b12670ad3535822a537 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/79062 Reviewed-by: Corentin Wallez <cwallez@chromium.org>
75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
// Copyright 2019 The Dawn Authors
|
|
//
|
|
// 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.
|
|
|
|
#include "dawn/utils/Timer.h"
|
|
|
|
#include <stdint.h>
|
|
#include <time.h>
|
|
|
|
namespace utils {
|
|
|
|
namespace {
|
|
|
|
uint64_t GetCurrentTimeNs() {
|
|
struct timespec currentTime;
|
|
clock_gettime(CLOCK_MONOTONIC, ¤tTime);
|
|
return currentTime.tv_sec * 1'000'000'000llu + currentTime.tv_nsec;
|
|
}
|
|
|
|
} // anonymous namespace
|
|
|
|
class PosixTimer : public Timer {
|
|
public:
|
|
PosixTimer() : Timer(), mRunning(false) {
|
|
}
|
|
|
|
~PosixTimer() override = default;
|
|
|
|
void Start() override {
|
|
mStartTimeNs = GetCurrentTimeNs();
|
|
mRunning = true;
|
|
}
|
|
|
|
void Stop() override {
|
|
mStopTimeNs = GetCurrentTimeNs();
|
|
mRunning = false;
|
|
}
|
|
|
|
double GetElapsedTime() const override {
|
|
uint64_t endTimeNs;
|
|
if (mRunning) {
|
|
endTimeNs = GetCurrentTimeNs();
|
|
} else {
|
|
endTimeNs = mStopTimeNs;
|
|
}
|
|
|
|
return (endTimeNs - mStartTimeNs) * 1e-9;
|
|
}
|
|
|
|
double GetAbsoluteTime() override {
|
|
return GetCurrentTimeNs() * 1e-9;
|
|
}
|
|
|
|
private:
|
|
bool mRunning;
|
|
uint64_t mStartTimeNs;
|
|
uint64_t mStopTimeNs;
|
|
};
|
|
|
|
Timer* CreateTimer() {
|
|
return new PosixTimer();
|
|
}
|
|
|
|
} // namespace utils
|