91 lines
2.1 KiB
C
91 lines
2.1 KiB
C
#ifndef CORE_SIGNAL_H
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#define CORE_SIGNAL_H
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/**
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* @file core_signal.h
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* @brief CORE Signal Handling
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*/
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#include "core.h"
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#include "core_errno.h"
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/**
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* @defgroup core_signal Signal Handling
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* @ingroup CORE
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* @{
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*/
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#if HAVE_SIGACTION
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#if defined(DARWIN) && !defined(__cplusplus) && !defined(_ANSI_SOURCE)
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/* work around Darwin header file bugs
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* http://www.opensource.apple.com/bugs/X/BSD%20Kernel/2657228.html
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*/
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#undef SIG_DFL
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#undef SIG_IGN
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#undef SIG_ERR
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#define SIG_DFL (void (*)(int))0
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#define SIG_IGN (void (*)(int))1
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#define SIG_ERR (void (*)(int))-1
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#endif
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/** Function prototype for signal handlers */
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typedef void core_sigfunc_t(int);
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/**
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* Set the signal handler function for a given signal
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* @param signo The signal (eg... SIGWINCH)
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* @param func the function to get called
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*/
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CORE_DECLARE(core_sigfunc_t *) core_signal(int signo, core_sigfunc_t * func);
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#if defined(SIG_IGN) && !defined(SIG_ERR)
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#define SIG_ERR ((core_sigfunc_t *) -1)
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#endif
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#else /* !HAVE_SIGACTION */
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#define core_signal(a, b) signal(a, b)
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#endif
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/**
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* Setup the process for a single thread to be used for all signal handling.
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* @warning This must be called before any threads are created
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*/
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CORE_DECLARE(status_t) signal_init(void);
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/**
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* Make the current thread listen for signals. This thread will loop
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* forever, calling a provided function whenever it receives a signal. That
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* functions should return 1 if the signal has been handled, 0 otherwise.
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* @param signal_handler The function to call when a signal is received
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* apr_status_t apr_signal_thread((int)(*signal_handler)(int signum))
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*/
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CORE_DECLARE(status_t) signal_thread(int(*signal_handler)(int signum));
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/**
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* Block the delivery of a particular signal
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* @param signum The signal number
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* @return status
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*/
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CORE_DECLARE(status_t) signal_block(int signum);
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/**
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* Enable the delivery of a particular signal
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* @param signum The signal number
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* @return status
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*/
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CORE_DECLARE(status_t) signal_unblock(int signum);
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/** @} */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* CORE_SIGNAL_H */
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