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Cleaning up the GetWallclockTime function.

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sidney 2024-12-27 09:21:04 +01:00
parent 58b8c14738
commit e785b88d42
1 changed files with 12 additions and 16 deletions
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28
src/sim65/peripherals.c
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@ -53,38 +53,34 @@ Sim65Peripherals Peripherals;
/*****************************************************************************/
static bool GetWallclockTime (struct timespec * ts)
/* Get the wallclock time with nanosecond resolution. */
{
/* Note: the 'struct timespec' type is supported on all compilers we want to support. */
/* Note: the 'struct timespec' type is available on all compilers we want to support. */
bool time_valid;
#if defined(__MINGW64__)
/* This check comes before the check on symbol __MINGW32__, as MinGW64 defines both.
*
* When using the MinGW64 compiler, neither timespec_get() nor clock_gettime()
* are available; this makes the Linux workflow build fail.
* The gettimeofday() function works, so use that.
/* When using the MinGW64 compiler, neither timespec_get() nor clock_gettime()
* are available; using either of them makes the Linux workflow build fail.
* The gettimeofday() function does work, so use that; its microsecond resulution
* is plenty for most applications.
*/
struct timeval tv;
bool time_valid = (gettimeofday(&tv, NULL) == 0);
time_valid = (gettimeofday(&tv, NULL) == 0);
if (time_valid)
{
ts->tv_sec = tv.tv_sec;
ts->tv_nsec = tv.tv_usec * 1000;
}
#elif defined(__MINGW32__)
/* The MinGW32 compiler is not used in the build process.
* Support can be added when the need arises.
*/
#error "The MinGW32 compiler is not supported."
#elif defined(_MSC_VER)
/* Using the Microsoft C++ compiler.
* clock_gettime() is not available; use timespec_get() instead.
*/
bool time_valid = timespec_get(ts, TIME_UTC) == TIME_UTC;
time_valid = timespec_get(ts, TIME_UTC) == TIME_UTC;
#else
/* Other platforms (Linux, MacOS, ...): assume that clock_gettime()
* is available.
/* On all other compilers, assume that the clock_gettime() function is available.
*/
bool time_valid = clock_gettime(CLOCK_REALTIME, ts) == 0;
time_valid = clock_gettime(CLOCK_REALTIME, ts) == 0;
#endif
return time_valid;