ualarm(3-BSD)     MISC. REFERENCE MANUAL PAGES      ualarm(3-BSD)



NAME
     ualarm - schedule signal after interval in microseconds

SYNOPSIS
     cc [ flag... ] file ... -lucb
     unsigned ualarm(value, interval)
     unsigned value;
     unsigned interval;

DESCRIPTION
     ualarm sends signal SIGALRM [see signal(3)], to the invoking
     process in a number of microseconds given by the value argu-
     ment.  Unless caught or ignored, the signal  terminates  the
     process.   If the interval argument is non-zero, the SIGALRM
     signal  will  be  sent  to  the   process   every   interval
     microseconds  after  the  timer expires (for instance, after
     value microseconds  have  passed).   Because  of  scheduling
     delays, resumption of execution of when the signal is caught
     may be delayed an arbitrary amount.  The longest specifiable
     delay  time is 2147483647 microseconds.  The return value is
     the amount of time previously remaining in the alarm clock.

NOTES
     ualarm is a simplified interface to setitimer;  see  getiti-
     mer(2).

SEE ALSO
     sigpause(3),  sigvec(3),  signal(3),   sleep(3),   usleep(3)
     alarm(2), getitimer(3) in the Programmer's Reference Manual.


























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