ualarm(3)          UNIX System V(BSD Compatibility Package)           ualarm(3)


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 argument.  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 getitimer(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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