source: palm/trunk/SOURCE/posix_calls_from_fortran.f90 @ 4313

Last change on this file since 4313 was 4182, checked in by scharf, 21 months ago
  • corrected "Former revisions" section
  • minor formatting in "Former revisions" section
  • added "Author" section
File size: 2.5 KB
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1!> @posix_calls_from_fortran.f90
2!------------------------------------------------------------------------------!
3! This file is part of the PALM model system.
4!
5! PALM is free software: you can redistribute it and/or modify it under the
6! terms of the GNU General Public License as published by the Free Software
7! Foundation, either version 3 of the License, or (at your option) any later
8! version.
9!
10! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
11! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12! A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
13!
14! You should have received a copy of the GNU General Public License along with
15! PALM. If not, see <http://www.gnu.org/licenses/>.
16!
17! Copyright 1997-2019 Leibniz Universitaet Hannover
18!------------------------------------------------------------------------------!
19!
20! Current revisions:
21! -----------------
22!
23!
24! Former revisions:
25! -----------------
26! $Id: posix_calls_from_fortran.f90 2696 2017-12-14 17:12:51Z kanani $
27! Corrected "Former revisions" section
28!
29! 2696 2017-12-14 17:12:51Z kanani
30! add variable description
31!
32! 1986 2016-08-10 14:07:17Z gronemeier
33! Initial revision
34!
35! Description:
36! ------------
37!> Collection of POSIX-command calls for Fortran
38!------------------------------------------------------------------------------!
39 MODULE posix_calls_from_fortran
40
41    USE, INTRINSIC ::  iso_c_binding, ONLY: c_int
42
43    IMPLICIT none
44
45    PRIVATE
46
47
48    INTERFACE
49!
50!--    Sleep function from C library
51       FUNCTION fsleep( seconds )  BIND( C, NAME='sleep' )
52          IMPORT
53          INTEGER(c_int) ::  fsleep
54          INTEGER(c_int), INTENT(IN), VALUE ::  seconds
55       END FUNCTION fsleep
56
57    END INTERFACE
58
59    INTERFACE fortran_sleep
60       MODULE PROCEDURE fortran_sleep
61    END INTERFACE fortran_sleep
62
63    PUBLIC fortran_sleep
64
65
66 CONTAINS
67
68!------------------------------------------------------------------------------!
69! Description:
70! ------------
71!> Wait a specified amount of seconds
72!------------------------------------------------------------------------------!
73 SUBROUTINE fortran_sleep( seconds )
74
75    INTEGER, INTENT(IN) ::  seconds             !< seconds to wait
76
77    INTEGER(c_int)      ::  seconds_in_c        !< same as seconds
78    INTEGER(c_int)      ::  sleep_return_value  !< returned value to sleep
79
80    seconds_in_c = seconds
81
82    sleep_return_value = fsleep( seconds_in_c )
83
84 END SUBROUTINE fortran_sleep
85
86 END MODULE posix_calls_from_fortran
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