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35 .\" @(#)sleep.3 8.1 (Berkeley) 6/4/93
43 .Nd suspend process execution for an interval measured in nanoseconds
49 .Fn nanosleep "const struct timespec *rqtp" "struct timespec *rmtp"
54 causes the process to sleep for the specified time.
55 An unmasked signal will
56 cause it to terminate the sleep early, regardless of the
58 value on the interrupting signal.
62 system call returns because the requested time has elapsed, the value
63 returned will be zero.
67 system call returns due to the delivery of a signal, the value returned
68 will be -1, and the global variable
70 will be set to indicate the interruption.
75 the timespec structure it references is updated to contain the
76 unslept amount (the request time minus the time actually slept).
87 points to memory that is not a valid part of the process
93 was interrupted by the delivery of a signal.
98 specified a nanosecond value less than zero
99 or greater than or equal to 1000 million.
104 is not supported by this implementation.
112 system call conforms to