42 lines
870 B
C
42 lines
870 B
C
/*
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setjmp.h
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stubs for future use.
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*/
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#ifndef _SETJMP_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define _SETJMP_H_
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#include "_ansi.h"
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#include <machine/setjmp.h>
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#include <signal.h> /* for sigset_t and sigprocmask */
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typedef struct __sigjmpbuf
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{
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__jmp_buf __buf;
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int __is_mask_saved;
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sigset_t __saved_mask;
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} sigjmp_buf;
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typedef __jmp_buf jmp_buf;
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void longjmp (jmp_buf __jmpb, int __retval);
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int setjmp (jmp_buf __jmpb);
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void siglongjmp (sigjmp_buf __jmpb, int __retval);
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int sigsetjmp (sigjmp_buf __jmpb, int __savemask);
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/* sigsetjmp is implemented as macro using setjmp */
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#define sigsetjmp(__jmpb, __savemask) \
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( __jmpb.__is_mask_saved = __savemask && \
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(sigprocmask (SIG_BLOCK, NULL, &__jmpb.__saved_mask) == 0), \
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setjmp (__jmpb.__buf) )
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SETJMP_H_ */
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