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Diffstat (limited to 'include/clplumbing/cl_signal.h')
-rw-r--r-- | include/clplumbing/cl_signal.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/include/clplumbing/cl_signal.h b/include/clplumbing/cl_signal.h new file mode 100644 index 0000000..1a13a6b --- /dev/null +++ b/include/clplumbing/cl_signal.h @@ -0,0 +1,91 @@ +/* + * cl_signal.h: signal handling routines to be used by Linux-HA programmes + * + * Copyright (C) 2002 Horms <horms@verge.net.au> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ +#ifndef _CL_SIGNAL_H +#define _CL_SIGNAL_H + +#include <stdio.h> +#include <signal.h> +#include <sys/signal.h> + +typedef struct { + int sig; + void (*handler)(int); + int interrupt; +} cl_signal_mode_t; + +#define CL_SIGNAL(_sig, _handler) \ + cl_signal_set_simple_handler((_sig), (_handler), NULL) +#if HAVE_SIGIGNORE +#define CL_IGNORE_SIG(_sig) sigignore((_sig)) +#else +#define CL_IGNORE_SIG(_sig) CL_SIGNAL((_sig), SIG_IGN) +#endif +#define CL_DEFAULT_SIG(_sig) CL_SIGNAL((_sig), SIG_DFL) + +#define CL_SIGINTERRUPT(_sig, _flag) siginterrupt((_sig), (_flag)) + +#define CL_SIGACTION(_signum, _act, _oldact) \ + sigaction((_signum), (_act), (_oldact)) +#define CL_SIGPROCMASK(_how, _set, _oldset) \ + cl_signal_block_set((_how), (_set), (_oldset)) +#define CL_SIGPENDING(_set) sigpending(_set) +#define CL_SIGSUSPEND(_mask) sigsuspend(_mask) + +#define CL_SIGEMPTYSET(_set) sigemptyset(_set) +#define CL_SIGFILLSET(_set) sigfillset(_set) +#define CL_SIGADDSET(_set, _signum) sigaddset((_set), (_signum)) +#define CL_SIGDELSET(_set, _signum) sigdelset((_set), (_signum)) +#define CL_SIGISMEMBER(_set, _signum) sigmember((_set), (_signum)) + +#define CL_KILL(_pid, _sig) kill((_pid), (_sig)) + +#define CL_PID_EXISTS(_pid) ( CL_KILL((_pid), 0) >= 0 || errno != ESRCH ) + +int +cl_signal_set_handler(int sig, void (*handler)(int), sigset_t *mask +, int flags, struct sigaction *oldact); + +int +cl_signal_set_simple_handler(int sig, void (*handler)(int) +, struct sigaction *oldact); + +int +cl_signal_set_action(int sig, void (*action)(int, siginfo_t *, void *) +, sigset_t *mask, int flags, struct sigaction *oldact); + +int +cl_signal_set_simple_action(int sig, void (*action)(int, siginfo_t *, void *) +, struct sigaction *oldact); + +int +cl_signal_set_interrupt(int sig, int flag); + +int +cl_signal_block(int how, int signal, sigset_t *oldset); + +int +cl_signal_block_set(int how, const sigset_t *set, sigset_t *oldset); + +int +cl_signal_set_handler_mode(const cl_signal_mode_t *mode, sigset_t *set); + + +#endif /* _CL_SIGNAL_H */ |