diff options
author | Thiago Macieira <thiago.macieira@intel.com> | 2023-02-22 13:08:05 -0800 |
---|---|---|
committer | Thiago Macieira <thiago.macieira@intel.com> | 2023-04-18 19:23:42 -0300 |
commit | c9f4c0d45e85c7cd7c6f7c18c3f3391857135ce2 (patch) | |
tree | e2db487af8d8219df888c4d70548f0d49e214048 /src/corelib/kernel/qelapsedtimer.h | |
parent | 13f0ee021e4f60248cc7914054a2f73fcc91a983 (diff) |
QElapsedTimer: rewrite using std::chrono::steady_clock everywhere
This commit deletes the direct, low-level functionality that
QElapsedTimer has carried since it was introduced. Everything now uses
only std::chrono::steady_clock and std::chrono::nanoseconds.
QDeadlineTimer temporarily still uses qt_gettime(), which is moved to
qcore_unix.cpp.
Task-number: QTBUG-110059
Change-Id: Ieec322d73c1e40ad95c8fffd174641a469b1eee5
Reviewed-by: Ahmad Samir <a.samirh78@gmail.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/corelib/kernel/qelapsedtimer.h')
-rw-r--r-- | src/corelib/kernel/qelapsedtimer.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/corelib/kernel/qelapsedtimer.h b/src/corelib/kernel/qelapsedtimer.h index ab32265cba..7d8b889f61 100644 --- a/src/corelib/kernel/qelapsedtimer.h +++ b/src/corelib/kernel/qelapsedtimer.h @@ -6,8 +6,9 @@ #include <QtCore/qglobal.h> -QT_BEGIN_NAMESPACE +#include <chrono> +QT_BEGIN_NAMESPACE class Q_CORE_EXPORT QElapsedTimer { @@ -21,6 +22,10 @@ public: PerformanceCounter }; + // similar to std::chrono::*_clock + using Duration = std::chrono::nanoseconds; + using TimePoint = std::chrono::time_point<std::chrono::steady_clock, Duration>; + constexpr QElapsedTimer() = default; static ClockType clockType() noexcept; @@ -31,11 +36,13 @@ public: void invalidate() noexcept; bool isValid() const noexcept; + Duration durationElapsed() const noexcept; qint64 nsecsElapsed() const noexcept; qint64 elapsed() const noexcept; bool hasExpired(qint64 timeout) const noexcept; qint64 msecsSinceReference() const noexcept; + Duration durationTo(const QElapsedTimer &other) const noexcept; qint64 msecsTo(const QElapsedTimer &other) const noexcept; qint64 secsTo(const QElapsedTimer &other) const noexcept; |