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unwind_prot.h
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Text File
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1991-07-07
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959b
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31 lines
/* unwind_prot.h - Macros and functions for hacking unwind protection. */
#if !defined (_UNWIND_PROT_H)
#define _UNWIND_PROT_H
/* Run a function without interrupts. */
void
without_interrupts (), begin_unwind_frame (), discard_unwind_frame (),
run_unwind_frame (), add_unwind_protect (), remove_unwind_protect (),
run_unwind_protects ();
/* Define for people who like their code to look a certain way. */
#define end_unwind_frame()
/* How to protect an integer. */
#define unwind_protect_int(X) unwind_protect_var (&(X), (X), sizeof (int))
/* How to protect a pointer to a string. */
#define unwind_protect_string(X) \
unwind_protect_var (&(X), (X), sizeof (char *))
/* How to protect any old pointer. */
#define unwind_protect_pointer(X) unwind_protect_string (X)
/* How to protect the contents of a jmp_buf. */
#define unwind_protect_jmp_buf(X) \
unwind_protect_var ((int *)(X), (char *)(X), sizeof (jmp_buf))
#endif /* _UNWIND_PROT_H */