Query: usleep
OS: osx
Section: 3
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
USLEEP(3) BSD Library Functions Manual USLEEP(3)NAMEusleep -- suspend thread execution for an interval measured in microsecondsLIBRARYStandard C Library (libc, -lc)SYNOPSIS#include <unistd.h> int usleep(useconds_t useconds);DESCRIPTIONThe usleep() function suspends execution of the calling thread until either useconds microseconds have elapsed or a signal is delivered to the thread whose action is to invoke a signal-catching function or to terminate the thread or process. The actual time slept may be longer, due to system latencies and possible limitations in the timer resolution of the hardware. This function is implemented, using nanosleep(2), by pausing for useconds microseconds or until a signal occurs. Consequently, in this implementation, sleeping has no effect on the state of process timers and there is no special handling for SIGALRM.RETURN VALUESThe usleep() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate the error.ERRORSThe usleep() function will fail if: [EINTR] A signal was delivered to the process and its action was to invoke a signal-catching function.SEE ALSOnanosleep(2), sleep(3)HISTORYThe usleep() function appeared in 4.3BSD.BSDFebruary 13, 1998 BSD
Related Man Pages |
---|
usleep(3) - freebsd |
usleep(3c) - opensolaris |
usleep(2) - hpux |
usleep(100000) - posix |
usleep(3c) - posix |
Similar Topics in the Unix Linux Community |
---|
using usleep in c++ on diff platforms |
usleep command is not available in SunOS |