|NANOSLEEP(2)||System Calls Manual||NANOSLEEP(2)|
suspend process execution for an interval measured in
Standard C Library (libc, -lc)
struct timespec *rqtp,
system call causes the calling thread to sleep until the time interval
specified by rqtp has elapsed. An unmasked signal will
cause it to terminate the sleep early, regardless of the
SA_RESTART value on the interrupting signal.
nanosleep() system call returns
because the requested time has elapsed, the value returned will be zero.
nanosleep() system call returns due
to the delivery of a signal, the value returned will be -1, and the global
variable errno will be set to indicate the
interruption. If rmtp is
NULL, the timespec
structure it references is updated to contain the unslept amount (the
request time minus the time actually slept).
nanosleep() system call fails if:
- Either rqtp or rmtp points to memory that is not a valid part of the process address space.
nanosleep() system call was interrupted by the delivery of a signal.
- The rqtp argument specified a nanosecond value less than zero or greater than or equal to 1000 million.
nanosleep() system call is not supported by this implementation.
nanosleep() system call conforms to
IEEE Std 1003.1b-1993
|April 17, 1997||Debian|