1 /* Implementation of the SIGNAL and ALARM g77 intrinsics
2 Copyright (C) 2005, 2007 Free Software Foundation, Inc.
3 Contributed by François-Xavier Coudert <coudert@clipper.ens.fr>
5 This file is part of the GNU Fortran 95 runtime library (libgfortran).
7 Libgfortran is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public
9 License as published by the Free Software Foundation; either
10 version 2 of the License, or (at your option) any later version.
12 In addition to the permissions in the GNU General Public License, the
13 Free Software Foundation gives you unlimited permission to link the
14 compiled version of this file into combinations with other programs,
15 and to distribute those combinations without any restriction coming
16 from the use of this file. (The General Public License restrictions
17 do apply in other respects; for example, they cover modification of
18 the file, and distribution when not linked into a combine
21 Libgfortran is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
26 You should have received a copy of the GNU General Public
27 License along with libgfortran; see the file COPYING. If not,
28 write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
29 Boston, MA 02110-1301, USA. */
31 #include "libgfortran.h"
41 #ifdef HAVE_INTTYPES_H
47 /* SIGNAL subroutine with PROCEDURE as handler */
48 extern void signal_sub (int *, void (*)(int), int *);
49 iexport_proto(signal_sub
);
52 signal_sub (int *number
, void (*handler
)(int), int *status
)
59 ret
= (intptr_t) signal (*number
, handler
);
63 signal (*number
, handler
);
73 /* SIGNAL subroutine with INTEGER as handler */
74 extern void signal_sub_int (int *, int *, int *);
75 iexport_proto(signal_sub_int
);
78 signal_sub_int (int *number
, int *handler
, int *status
)
81 intptr_t ptr
= *handler
, ret
;
85 ret
= (intptr_t) signal (*number
, (void (*)(int)) ptr
);
89 signal (*number
, (void (*)(int)) ptr
);
96 iexport(signal_sub_int
);
99 /* SIGNAL function with PROCEDURE as handler */
100 extern int signal_func (int *, void (*)(int));
101 iexport_proto(signal_func
);
104 signal_func (int *number
, void (*handler
)(int))
107 signal_sub (number
, handler
, &status
);
110 iexport(signal_func
);
113 /* SIGNAL function with INTEGER as handler */
114 extern int signal_func_int (int *, int *);
115 iexport_proto(signal_func_int
);
118 signal_func_int (int *number
, int *handler
)
121 signal_sub_int (number
, handler
, &status
);
124 iexport(signal_func_int
);
128 /* ALARM intrinsic with PROCEDURE as handler */
129 extern void alarm_sub_i4 (int *, void (*)(int), GFC_INTEGER_4
*);
130 iexport_proto(alarm_sub_i4
);
133 alarm_sub_i4 (int * seconds
__attribute__ ((unused
)),
134 void (*handler
)(int) __attribute__ ((unused
)),
135 GFC_INTEGER_4
*status
)
137 #if defined (SIGALRM) && defined (HAVE_ALARM) && defined (HAVE_SIGNAL)
140 if (signal (SIGALRM
, handler
) == SIG_ERR
)
143 *status
= alarm (*seconds
);
147 signal (SIGALRM
, handler
);
156 iexport(alarm_sub_i4
);
159 extern void alarm_sub_i8 (int *, void (*)(int), GFC_INTEGER_8
*);
160 iexport_proto(alarm_sub_i8
);
163 alarm_sub_i8 (int *seconds
__attribute__ ((unused
)),
164 void (*handler
)(int) __attribute__ ((unused
)),
165 GFC_INTEGER_8
*status
)
167 #if defined (SIGALRM) && defined (HAVE_ALARM) && defined (HAVE_SIGNAL)
170 if (signal (SIGALRM
, handler
) == SIG_ERR
)
173 *status
= alarm (*seconds
);
177 signal (SIGALRM
, handler
);
186 iexport(alarm_sub_i8
);
189 /* ALARM intrinsic with INTEGER as handler */
190 extern void alarm_sub_int_i4 (int *, int *, GFC_INTEGER_4
*);
191 iexport_proto(alarm_sub_int_i4
);
194 alarm_sub_int_i4 (int *seconds
__attribute__ ((unused
)),
195 int *handler
__attribute__ ((unused
)),
196 GFC_INTEGER_4
*status
)
198 #if defined (SIGALRM) && defined (HAVE_ALARM) && defined (HAVE_SIGNAL)
201 if (signal (SIGALRM
, (void (*)(int)) (intptr_t) *handler
) == SIG_ERR
)
204 *status
= alarm (*seconds
);
208 signal (SIGALRM
, (void (*)(int)) (intptr_t) *handler
);
217 iexport(alarm_sub_int_i4
);
220 extern void alarm_sub_int_i8 (int *, int *, GFC_INTEGER_8
*);
221 iexport_proto(alarm_sub_int_i8
);
224 alarm_sub_int_i8 (int *seconds
__attribute__ ((unused
)),
225 int *handler
__attribute__ ((unused
)),
226 GFC_INTEGER_8
*status
)
228 #if defined (SIGALRM) && defined (HAVE_ALARM) && defined (HAVE_SIGNAL)
231 if (signal (SIGALRM
, (void (*)(int)) (intptr_t) *handler
) == SIG_ERR
)
234 *status
= alarm (*seconds
);
238 signal (SIGALRM
, (void (*)(int)) (intptr_t) *handler
);
247 iexport(alarm_sub_int_i8
);