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/*
* include/haproxy/signal-t.h
* Asynchronous signal delivery functions descriptors.
*
* Copyright 2000-2010 Willy Tarreau <w@1wt.eu>
*
* 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
* 2 of the License, or (at your option) any later version.
*
*/
#ifndef _HAPROXY_SIGNAL_T_H
#define _HAPROXY_SIGNAL_T_H
#include <signal.h>
#include <haproxy/api-t.h>
/* flags for -> flags */
#define SIG_F_ONE_SHOOT 0x0001 /* unregister handler before calling it */
#define SIG_F_TYPE_FCT 0x0002 /* handler is a function + arg */
#define SIG_F_TYPE_TASK 0x0004 /* handler is a task + reason */
/* Define WDTSIG if available */
#if defined(USE_RT) && (_POSIX_TIMERS > 0) && defined(_POSIX_THREAD_CPUTIME)
/* We'll deliver SIGALRM when we've run out of CPU as it's not intercepted by
* gdb by default.
*/
#define WDTSIG SIGALRM
#endif
#ifdef USE_THREAD_DUMP
/* The signal to trigger a debug dump on a thread is SIGURG. It has the benefit
* of not stopping gdb by default, so that issuing "show threads" in a process
* being debugged has no adverse effect.
*/
#define DEBUGSIG SIGURG
#endif
/* those are highly dynamic and stored in pools */
struct sig_handler {
struct list list;
void *handler; /* function to call or task to wake up */
int arg; /* arg to pass to function, or signals*/
int flags; /* SIG_F_* */
};
/* one per signal */
struct signal_descriptor {
int count; /* number of times raised */
struct list handlers; /* sig_handler */
};
#endif /* _HAPROXY_SIGNAL_T_H */
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/
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