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31 .\" @(#)sleep.3 8.1 (Berkeley) 6/4/93
39 .Nd suspend process execution for an interval measured in nanoseconds
45 .Fn nanosleep "const struct timespec *rqtp" "struct timespec *rmtp"
50 causes the process to sleep for the specified time.
51 An unmasked signal will
52 cause it to terminate the sleep early, regardless of the
54 value on the interrupting signal.
58 system call returns because the requested time has elapsed, the value
59 returned will be zero.
63 system call returns due to the delivery of a signal, the value returned
64 will be -1, and the global variable
66 will be set to indicate the interruption.
71 the timespec structure it references is updated to contain the
72 unslept amount (the request time minus the time actually slept).
83 points to memory that is not a valid part of the process
89 was interrupted by the delivery of a signal.
94 specified a nanosecond value less than zero
95 or greater than or equal to 1000 million.
100 is not supported by this implementation.
108 system call conforms to