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[/] [openrisc/] [tags/] [gnu-dev/] [fsf-gcc-snapshot-1-mar-12/] [or1k-gcc/] [libgfortran/] [intrinsics/] [signal.c] - Rev 860
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/* Implementation of the SIGNAL and ALARM g77 intrinsics Copyright (C) 2005, 2007, 2009, 2011 Free Software Foundation, Inc. Contributed by François-Xavier Coudert <coudert@clipper.ens.fr> 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" #ifdef HAVE_UNISTD_H #include <unistd.h> #endif #include <signal.h> #ifdef HAVE_INTTYPES_H #include <inttypes.h> #endif #include <errno.h> /* SIGNAL subroutine with PROCEDURE as handler */ extern void signal_sub (int *, void (*)(int), int *); iexport_proto(signal_sub); void signal_sub (int *number, void (*handler)(int), int *status) { intptr_t ret; if (status != NULL) { ret = (intptr_t) signal (*number, handler); *status = (int) ret; } else signal (*number, handler); } iexport(signal_sub); /* SIGNAL subroutine with INTEGER as handler */ extern void signal_sub_int (int *, int *, int *); iexport_proto(signal_sub_int); void signal_sub_int (int *number, int *handler, int *status) { intptr_t ptr = *handler, ret; if (status != NULL) { ret = (intptr_t) signal (*number, (void (*)(int)) ptr); *status = (int) ret; } else signal (*number, (void (*)(int)) ptr); } iexport(signal_sub_int); /* SIGNAL function with PROCEDURE as handler */ extern int signal_func (int *, void (*)(int)); iexport_proto(signal_func); int signal_func (int *number, void (*handler)(int)) { int status; signal_sub (number, handler, &status); return status; } iexport(signal_func); /* SIGNAL function with INTEGER as handler */ extern int signal_func_int (int *, int *); iexport_proto(signal_func_int); int signal_func_int (int *number, int *handler) { int status; signal_sub_int (number, handler, &status); return status; } iexport(signal_func_int); /* ALARM intrinsic with PROCEDURE as handler */ extern void alarm_sub_i4 (int *, void (*)(int), GFC_INTEGER_4 *); iexport_proto(alarm_sub_i4); void alarm_sub_i4 (int * seconds __attribute__ ((unused)), void (*handler)(int) __attribute__ ((unused)), GFC_INTEGER_4 *status) { #if defined (SIGALRM) && defined (HAVE_ALARM) if (status != NULL) { if (signal (SIGALRM, handler) == SIG_ERR) *status = -1; else *status = alarm (*seconds); } else { signal (SIGALRM, handler); alarm (*seconds); } #else errno = ENOSYS; if (status != NULL) *status = -1; #endif } iexport(alarm_sub_i4); extern void alarm_sub_i8 (int *, void (*)(int), GFC_INTEGER_8 *); iexport_proto(alarm_sub_i8); void alarm_sub_i8 (int *seconds __attribute__ ((unused)), void (*handler)(int) __attribute__ ((unused)), GFC_INTEGER_8 *status) { #if defined (SIGALRM) && defined (HAVE_ALARM) if (status != NULL) { if (signal (SIGALRM, handler) == SIG_ERR) *status = -1; else *status = alarm (*seconds); } else { signal (SIGALRM, handler); alarm (*seconds); } #else errno = ENOSYS; if (status != NULL) *status = -1; #endif } iexport(alarm_sub_i8); /* ALARM intrinsic with INTEGER as handler */ extern void alarm_sub_int_i4 (int *, int *, GFC_INTEGER_4 *); iexport_proto(alarm_sub_int_i4); void alarm_sub_int_i4 (int *seconds __attribute__ ((unused)), int *handler __attribute__ ((unused)), GFC_INTEGER_4 *status) { #if defined (SIGALRM) && defined (HAVE_ALARM) if (status != NULL) { if (signal (SIGALRM, (void (*)(int)) (intptr_t) *handler) == SIG_ERR) *status = -1; else *status = alarm (*seconds); } else { signal (SIGALRM, (void (*)(int)) (intptr_t) *handler); alarm (*seconds); } #else errno = ENOSYS; if (status != NULL) *status = -1; #endif } iexport(alarm_sub_int_i4); extern void alarm_sub_int_i8 (int *, int *, GFC_INTEGER_8 *); iexport_proto(alarm_sub_int_i8); void alarm_sub_int_i8 (int *seconds __attribute__ ((unused)), int *handler __attribute__ ((unused)), GFC_INTEGER_8 *status) { #if defined (SIGALRM) && defined (HAVE_ALARM) if (status != NULL) { if (signal (SIGALRM, (void (*)(int)) (intptr_t) *handler) == SIG_ERR) *status = -1; else *status = alarm (*seconds); } else { signal (SIGALRM, (void (*)(int)) (intptr_t) *handler); alarm (*seconds); } #else errno = ENOSYS; if (status != NULL) *status = -1; #endif } iexport(alarm_sub_int_i8);
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