#define _UNWIND_PROT_H
/* Run a function without interrupts. */
-extern void begin_unwind_frame ();
-extern void discard_unwind_frame ();
-extern void run_unwind_frame ();
-extern void add_unwind_protect ();
-extern void remove_unwind_protect ();
-extern void run_unwind_protects ();
-extern void unwind_protect_var ();
-
-/* Try to force correct alignment on machines where pointers and ints
- differ in size. */
-typedef union {
- char *s;
- int i;
-} UWP;
+extern void begin_unwind_frame __P((char *));
+extern void discard_unwind_frame __P((char *));
+extern void run_unwind_frame __P((char *));
+extern void add_unwind_protect (); /* Not portable to arbitrary C99 hosts. */
+extern void remove_unwind_protect __P((void));
+extern void run_unwind_protects __P((void));
+extern void clear_unwind_protect_list __P((int));
+extern void uwp_init __P((void));
/* 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) \
- do \
- { \
- UWP u; \
- u.i = (X); \
- unwind_protect_var (&(X), u.s, sizeof (int)); \
- } \
- while (0)
-
-#define unwind_protect_short(X) \
- unwind_protect_var ((int *)&(X), (char *)&(X), sizeof (short))
-
-/* How to protect a pointer to a string. */
-#define unwind_protect_string(X) \
- unwind_protect_var ((int *)&(X), (X), sizeof (char *))
-
-/* How to protect any old pointer. */
-#define unwind_protect_pointer(X) unwind_protect_string (X)
+/* How to protect a variable. */
+#define unwind_protect_var(X) unwind_protect_mem ((char *)&(X), sizeof (X))
+extern void unwind_protect_mem __P((char *, int));
-/* How to protect the contents of a jmp_buf. */
-#define unwind_protect_jmp_buf(X) \
- unwind_protect_var ((int *)(X), (char *)(X), sizeof (procenv_t))
+/* Backwards compatibility */
+#define unwind_protect_int unwind_protect_var
+#define unwind_protect_short unwind_protect_var
+#define unwind_protect_string unwind_protect_var
+#define unwind_protect_pointer unwind_protect_var
+#define unwind_protect_jmp_buf unwind_protect_var
#endif /* _UNWIND_PROT_H */