| /* Implementation of the dtime intrinsic. |
| Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
| |
| This file is part of the GNU Fortran 95 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 2 of the License, or (at your option) any later version. |
| |
| In addition to the permissions in the GNU General Public License, the |
| Free Software Foundation gives you unlimited permission to link the |
| compiled version of this file into combinations with other programs, |
| and to distribute those combinations without any restriction coming |
| from the use of this file. (The General Public License restrictions |
| do apply in other respects; for example, they cover modification of |
| the file, and distribution when not linked into a combine |
| executable.) |
| |
| 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. |
| |
| You should have received a copy of the GNU General Public |
| License along with libgfortran; see the file COPYING. If not, |
| write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #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) |
| { |
| static GFC_REAL_4 tu = 0.0, ts = 0.0, tt = 0.0; |
| GFC_REAL_4 *tp; |
| long user_sec, user_usec, system_sec, system_usec; |
| |
| if (((t->dim[0].ubound + 1 - t->dim[0].lbound)) < 2) |
| runtime_error ("Insufficient number of elements in TARRAY."); |
| |
| __gthread_mutex_lock (&dtime_update_lock); |
| if (__time_1 (&user_sec, &user_usec, &system_sec, &system_usec) == 0) |
| { |
| tu = (GFC_REAL_4)(user_sec + 1.e-6 * user_usec) - tu; |
| ts = (GFC_REAL_4)(system_sec + 1.e-6 * system_usec) - ts; |
| tt = tu + ts; |
| } |
| else |
| { |
| tu = (GFC_REAL_4)-1.0; |
| ts = (GFC_REAL_4)-1.0; |
| tt = (GFC_REAL_4)-1.0; |
| } |
| |
| tp = t->data; |
| |
| *tp = tu; |
| tp += t->dim[0].stride; |
| *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; |
| } |