mirror of https://github.com/GOSTSec/sgminer
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.7 KiB
44 lines
1.7 KiB
/* Convenience declarations when working with <signal.h>. |
|
|
|
Copyright (C) 2008-2011 Free Software Foundation, Inc. |
|
|
|
This program 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. |
|
|
|
This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */ |
|
|
|
#ifndef _GL_SIG_HANDLER_H |
|
#define _GL_SIG_HANDLER_H |
|
|
|
#include <signal.h> |
|
|
|
/* Convenience type when working with signal handlers. */ |
|
typedef void (*sa_handler_t) (int); |
|
|
|
/* Return the handler of a signal, as a sa_handler_t value regardless |
|
of its true type. The resulting function can be compared to |
|
special values like SIG_IGN but it is not portable to call it. */ |
|
static inline sa_handler_t |
|
get_handler (struct sigaction const *a) |
|
{ |
|
#ifdef SA_SIGINFO |
|
/* POSIX says that special values like SIG_IGN can only occur when |
|
action.sa_flags does not contain SA_SIGINFO. But in Linux 2.4, |
|
for example, sa_sigaction and sa_handler are aliases and a signal |
|
is ignored if sa_sigaction (after casting) equals SIG_IGN. So |
|
use (and cast) sa_sigaction in that case. */ |
|
if (a->sa_flags & SA_SIGINFO) |
|
return (sa_handler_t) a->sa_sigaction; |
|
#endif |
|
return a->sa_handler; |
|
} |
|
|
|
#endif /* _GL_SIG_HANDLER_H */
|
|
|