timespec
Section: Misc. Reference Manual Pages (3type)
Updated: 2023-02-05
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NAME
timespec - time in seconds and nanoseconds
LIBRARY
Standard C library
(libc)
SYNOPSIS
#include <time.h>
struct timespec {
time_t tv_sec; /* Seconds */
/* ... */ tv_nsec; /* Nanoseconds [0, 999'999'999] */
};
DESCRIPTION
Describes times in seconds and nanoseconds.
tv_nsec
is of an implementation-defined signed type capable of holding the specified range.
Under glibc, this is usually
long,
and
long long
on X32.
It can be safely down-cast to any concrete 32-bit integer type for processing.
STANDARDS
C11 and later;
POSIX.1-2001 and later.
VERSIONS
Prior to C23,
tv_nsec
was
long.
NOTES
The following headers also provide this type:
<aio.h>,
<mqueue.h>,
<sched.h>,
<signal.h>,
<sys/select.h>,
and
<sys/stat.h>.
SEE ALSO
clock_gettime(2),
clock_nanosleep(2),
nanosleep(2),
timerfd_gettime(2),
timer_gettime(2),
time_t(3type),
timeval(3type)
Index
- NAME
-
- LIBRARY
-
- SYNOPSIS
-
- DESCRIPTION
-
- STANDARDS
-
- VERSIONS
-
- NOTES
-
- SEE ALSO
-
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