24f4efa670
The two new functions below make it possible to register any number
of functions or tasks to a system signal. They will be called in the
registration order when the signal is received.
struct sig_handler *signal_register_fct(int sig, void (*fct)(struct sig_handler *), int arg);
struct sig_handler *signal_register_task(int sig, struct task *task, int reason);
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/*
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* include/types/signal.h
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* Asynchronous signal delivery functions descriptors.
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*
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* Copyright 2000-2010 Willy Tarreau <w@1wt.eu>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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*/
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#ifndef _TYPES_SIGNAL_H
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#define _TYPES_SIGNAL_H
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#include <signal.h>
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#include <common/config.h>
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#include <common/mini-clist.h>
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#include <common/standard.h>
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/* flags for -> flags */
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#define SIG_F_ONE_SHOOT 0x0001 /* unregister handler before calling it */
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#define SIG_F_TYPE_FCT 0x0002 /* handler is a function + arg */
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#define SIG_F_TYPE_TASK 0x0004 /* handler is a task + reason */
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/* those are highly dynamic and stored in pools */
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struct sig_handler {
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struct list list;
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void *handler; /* function to call or task to wake up */
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int arg; /* arg to pass to function, or signals*/
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int flags; /* SIG_F_* */
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};
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/* one per signal */
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struct signal_descriptor {
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int count; /* number of times raised */
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struct list handlers; /* sig_handler */
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};
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#endif /* _TYPES_SIGNAL_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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