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ALARM— Execute a routine after a given delay
ALARM(SECONDS, HANDLER [, STATUS]) causes external subroutine HANDLER
to be executed after a delay of SECONDS by using
set up a signal and
signal(2) to catch it. If STATUS is
supplied, it will be returned with the number of seconds remaining until
any previously scheduled alarm was due to be delivered, or zero if there
was no previously scheduled alarm.
CALL ALARM(SECONDS, HANDLER [, STATUS])
|SECONDS||The type of the argument shall be a scalar
|HANDLER||Signal handler (|
|STATUS||(Optional) STATUS shall be a scalar
variable of the default |
program test_alarm external handler_print integer i call alarm (3, handler_print, i) print *, i call sleep(10) end program test_alarm
This will cause the external routine handler_print to be called after 3 seconds.