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d0807c3c60
Signal zero is never delivered by the system. However having a signal to
which functions and tasks can subscribe to be notified of a stopping event
is useful. So this patch does two things :
1) allow signal zero to be delivered from any function of signal handler
2) make soft_stop() deliver this signal so that tasks can be notified of
a stopping condition.
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/*
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* include/proto/signal.h
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* Asynchronous signal delivery functions.
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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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#include <signal.h>
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#include <common/standard.h>
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#include <types/signal.h>
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extern int signal_queue_len;
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extern struct signal_descriptor signal_state[];
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extern struct pool_head *pool2_sig_handlers;
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void signal_handler(int sig);
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void __signal_process_queue();
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int signal_init();
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void deinit_signals();
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struct sig_handler *signal_register_fct(int sig, void (*fct)(struct sig_handler *), int arg);
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struct sig_handler *signal_register_task(int sig, struct task *task, int reason);
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void signal_unregister_handler(struct sig_handler *handler);
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void signal_unregister_target(int sig, void *target);
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static inline void signal_process_queue()
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{
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if (unlikely(signal_queue_len > 0))
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__signal_process_queue();
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}
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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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