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5c78499ae2
Use proper internal macros for BSD sig_t and GNU sighandler_t. sigaltstack and friends are XSI even in SUSv4 but in glibc are nonetheless handled as POSIX.1-2008 (not 2001). The requirement for the ucontext_t typedef in signal.h was XSI prior to POSIX.1-2008. Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
36 lines
819 B
C
36 lines
819 B
C
#ifndef _SIGNAL_H_
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#define _SIGNAL_H_
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#include "_ansi.h"
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#include <sys/cdefs.h>
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#include <sys/signal.h>
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_BEGIN_STD_C
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typedef int sig_atomic_t; /* Atomic entity type (ANSI) */
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#if __BSD_VISIBLE
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typedef _sig_func_ptr sig_t; /* BSD naming */
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#endif
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#if __GNU_VISIBLE
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typedef _sig_func_ptr sighandler_t; /* glibc naming */
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#endif
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#define SIG_DFL ((_sig_func_ptr)0) /* Default action */
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#define SIG_IGN ((_sig_func_ptr)1) /* Ignore action */
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#define SIG_ERR ((_sig_func_ptr)-1) /* Error return */
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struct _reent;
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_sig_func_ptr _EXFUN(_signal_r, (struct _reent *, int, _sig_func_ptr));
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int _EXFUN(_raise_r, (struct _reent *, int));
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#ifndef _REENT_ONLY
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_sig_func_ptr _EXFUN(signal, (int, _sig_func_ptr));
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int _EXFUN(raise, (int));
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void _EXFUN(psignal, (int, const char *));
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#endif
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_END_STD_C
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#endif /* _SIGNAL_H_ */
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