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libcamera: Switch to the std::chrono API

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Replace the clock_gettime()-based API with durations expressed as
integers with the std::chrono API.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
This commit is contained in:
Laurent Pinchart 2019-09-14 03:40:47 +03:00
parent 98dff063f2
commit cecfeed61e
9 changed files with 67 additions and 75 deletions
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17
test/timer.cpp
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@ -5,6 +5,7 @@
* timer.cpp - Timer test
*/
#include <chrono>
#include <iostream>
#include <libcamera/event_dispatcher.h>
@ -28,28 +29,28 @@ public:
void start(int msec)
{
interval_ = msec;
clock_gettime(CLOCK_MONOTONIC, &start_);
expiration_ = { 0, 0 };
start_ = std::chrono::steady_clock::now();
expiration_ = std::chrono::steady_clock::time_point();
Timer::start(msec);
}
int jitter()
{
int duration = (expiration_.tv_sec - start_.tv_sec) * 1000;
duration += (expiration_.tv_nsec - start_.tv_nsec) / 1000000;
return abs(duration - interval_);
std::chrono::steady_clock::duration duration = expiration_ - start_;
int msecs = std::chrono::duration_cast<std::chrono::milliseconds>(duration).count();
return abs(msecs - interval_);
}
private:
void timeoutHandler(Timer *timer)
{
clock_gettime(CLOCK_MONOTONIC, &expiration_);
expiration_ = std::chrono::steady_clock::now();
}
int interval_;
struct timespec start_;
struct timespec expiration_;
std::chrono::steady_clock::time_point start_;
std::chrono::steady_clock::time_point expiration_;
};
class TimerTest : public Test