system_sleep(3f) - [M_time] call C sleep(3c) or usleep(3c) procedure (LICENSE:PD)
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subroutine system_sleep(wait_seconds)integer,intent(in) :: wait_seconds or real,intent(in) :: wait_seconds
The system_sleep(3f) routine uses the intrinsic ISO_C_BINDING interface to call the C sleep(3c) procedure or usleep(3c) routine.
wait_seconds integer,real or doubleprecision number of seconds for process to sleep.
Sample program:
program demo_system_sleep use M_time, only : system_sleep, now implicit none integer :: i ! write(*,*)"Time before integer call is: ",now() call system_sleep(4) write(*,*)"Time after integer call is: ",now() ! write(*,*)"Time before real call is: ",now() call system_sleep(4.0) write(*,*)"Time after real call is: ",now() ! write(*,*)"Time before loop is: ",now() do i=1,1000 call system_sleep(4.0/1000.0) enddo write(*,*)"Time after loop is: ",now() ! end program demo_system_sleepresults
Time before integer call is: Sunday, July 17th, 2016 2:29:45 AM UTC-0240 Time after integer call is: Sunday, July 17th, 2016 2:29:49 AM UTC-0240 Time before real call is: Sunday, July 17th, 2016 2:29:49 AM UTC-0240 Time after real call is: Sunday, July 17th, 2016 2:29:53 AM UTC-0240 Time before loop is: Sunday, July 17th, 2016 2:29:53 AM UTC-0240 Time after loop is: Sunday, July 17th, 2016 2:30:09 AM UTC-0240
John S. Urban, 2015
Public Domain
system_sleep (3) | July 05, 2020 |