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callback/callback.h.in

 

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#ifndef _CALLBACK_H

 

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#define _CALLBACK_H

 

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/*

 

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 * Copyright 1997-1999, 2005 Bruno Haible, <bruno@clisp.org>

 

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 *

 

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 * This is free software distributed under the GNU General Public Licence

 

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 * described in the file COPYING. Contact the author if you don't have this

 

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 * or can't live with it. There is ABSOLUTELY NO WARRANTY, explicit or implied,

 

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 * on this software.

 

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 */

 

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#if !defined(LIBFFCALL_VERSION)

 

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# define LIBFFCALL_VERSION @LIBFFCALL_VERSION@

 

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#endif

 

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#include "vacall_r.h"

 

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#include "trampoline_r.h"

 

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typedef void (*__VA_function) (void*, va_alist);

 

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#if 0

 

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extern __TR_function alloc_callback (__VA_function, void*);

 

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extern void free_callback (__TR_function);

 

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extern int is_callback (void*);

 

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extern __VA_function callback_address (void*);

 

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extern void* callback_data (void*);

 

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#else

 

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#define alloc_callback(address,data)  \

 

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  alloc_trampoline_r((__TR_function)&__vacall_r,(void*)(__VA_function)(address),(void*)(data))

 

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#define free_callback(function)  \

 

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  free_trampoline_r(function)

 

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#define is_callback(function)  \

 

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  (is_trampoline_r(function)                                       \

 

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   && trampoline_r_address(function) == (__TR_function)&__vacall_r \

 

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  )

 

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#define callback_address(function)  \

 

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  (__VA_function)trampoline_r_data0(function)

 

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#define callback_data(function)  \

 

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  trampoline_r_data1(function)

 

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#endif

 

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#endif /* _CALLBACK_H */

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