int timespec_get( struct timespec *ts, int base );
(1) (since C11)#define TIME_UTC /* implementation-defined */
(2) (since C11)1) Modifies the timespec object pointed to by ts to hold the current calendar time in the time base base.
2) Expands to a value suitable for use as the base argument of timespec_get
Other macro constants beginning with TIME_ may be provided by the implementation to indicate additional time bases
If base is TIME_UTC, then
TIME_UTC or another nonzero integer value indicating the time base [edit] Return value
The value of base if successful, zero otherwise.
[edit] NotesThe POSIX function clock_gettime(CLOCK_REALTIME, ts) may also be used to populate a timespec with the time since the Epoch.
#include <stdio.h>
#include <time.h>
int main(void)
{
struct timespec ts;
timespec_get(&ts, TIME_UTC);
char buff[100];
strftime(buff, sizeof buff, "%D %T", gmtime(&ts.tv_sec));
printf("Current time: %s.%09ld UTC\n", buff, ts.tv_nsec);
}
Possible output:
Current time: 02/18/15 14:34:03.048508855 UTC[edit] References
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