| /* Implementation of the dtime intrinsic. |
| Copyright (C) 2004-2021 Free Software Foundation, Inc. |
| |
| This file is part of the GNU Fortran runtime library (libgfortran). |
| |
| Libgfortran is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public |
| License as published by the Free Software Foundation; either |
| version 3 of the License, or (at your option) any later version. |
| |
| Libgfortran is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include "libgfortran.h" |
| #include "time_1.h" |
| #include <gthr.h> |
| |
| #ifdef __GTHREAD_MUTEX_INIT |
| static __gthread_mutex_t dtime_update_lock = __GTHREAD_MUTEX_INIT; |
| #else |
| static __gthread_mutex_t dtime_update_lock; |
| #endif |
| |
| extern void dtime_sub (gfc_array_r4 *t, GFC_REAL_4 *result); |
| iexport_proto(dtime_sub); |
| |
| void |
| dtime_sub (gfc_array_r4 *t, GFC_REAL_4 *result) |
| { |
| GFC_REAL_4 *tp; |
| long user_sec, user_usec, system_sec, system_usec; |
| static long us = 0, uu = 0, ss = 0 , su = 0; |
| GFC_REAL_4 tu, ts, tt; |
| |
| if (((GFC_DESCRIPTOR_EXTENT(t,0))) < 2) |
| runtime_error ("Insufficient number of elements in TARRAY."); |
| |
| __gthread_mutex_lock (&dtime_update_lock); |
| if (gf_cputime (&user_sec, &user_usec, &system_sec, &system_usec) == 0) |
| { |
| tu = (GFC_REAL_4) ((user_sec - us) + 1.e-6 * (user_usec - uu)); |
| ts = (GFC_REAL_4) ((system_sec - ss) + 1.e-6 * (system_usec - su)); |
| tt = tu + ts; |
| us = user_sec; |
| uu = user_usec; |
| ss = system_sec; |
| su = system_usec; |
| } |
| else |
| { |
| tu = -1; |
| ts = -1; |
| tt = -1; |
| } |
| |
| tp = t->base_addr; |
| |
| *tp = tu; |
| tp += GFC_DESCRIPTOR_STRIDE(t,0); |
| *tp = ts; |
| *result = tt; |
| __gthread_mutex_unlock (&dtime_update_lock); |
| } |
| iexport(dtime_sub); |
| |
| extern GFC_REAL_4 dtime (gfc_array_r4 *t); |
| export_proto(dtime); |
| |
| GFC_REAL_4 |
| dtime (gfc_array_r4 *t) |
| { |
| GFC_REAL_4 val; |
| dtime_sub (t, &val); |
| return val; |
| } |