diff options
Diffstat (limited to 'src/app/system.h')
-rw-r--r-- | src/app/system.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/app/system.h b/src/app/system.h index 3bf6457..3c04760 100644 --- a/src/app/system.h +++ b/src/app/system.h @@ -23,6 +23,8 @@ #include <string> +/* Dialog utils */ + /** * \enum SysDialogType * \brief Type of system dialog @@ -57,3 +59,47 @@ enum SystemDialogResult //! Displays a system dialog SystemDialogResult SystemDialog(SystemDialogType, const std::string &title, const std::string &message); + + +/* Time utils */ + +enum SystemTimeUnit +{ + //! seconds + STU_SEC, + //! milliseconds + STU_MSEC, + //! microseconds + STU_USEC +}; + +/* Forward declaration of time stamp struct + * SystemTimeStamp should be used in a pointer context. + * The implementation details are hidden because of platform dependence. */ +struct SystemTimeStamp; + +//! Creates a new time stamp object +SystemTimeStamp* CreateTimeStamp(); + +//! Destroys a time stamp object +void DestroyTimeStamp(SystemTimeStamp *stamp); + +//! Copies the time stamp from \a src to \a dst +void CopyTimeStamp(SystemTimeStamp *dst, SystemTimeStamp *src); + +//! Returns a time stamp associated with current time +void GetCurrentTimeStamp(SystemTimeStamp *stamp); + +//! Returns the platform's expected time stamp resolution +float GetTimeStampResolution(SystemTimeUnit unit = STU_SEC); + +//! Returns the platform's exact (in nanosecond units) expected time stamp resolution +long long GetTimeStampExactResolution(); + +//! Returns a difference between two timestamps in given time unit +/** The difference is \a after - \a before. */ +float TimeStampDiff(SystemTimeStamp *before, SystemTimeStamp *after, SystemTimeUnit unit = STU_SEC); + +//! Returns the exact (in nanosecond units) difference between two timestamps +/** The difference is \a after - \a before. */ +long long TimeStampExactDiff(SystemTimeStamp *before, SystemTimeStamp *after); |