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/*
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 1, or (at your option)
** any later version.
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Author : Alexandre Parenteau <aubonbeurre@hotmail.com> --- December 1997
*/
/*
* dll_loader.h --- code to load dynamic code
*/
#ifndef DLLLOADER_H
#define DLLLOADER_H
#ifdef macintosh
# include <CodeFragments.h>
typedef CFragConnectionID CompatConnectID;
#elif defined(WIN32)
typedef HINSTANCE CompatConnectID;
#else /* !macintosh && !WIN32 */
# include <dlfcn.h>
typedef void *CompatConnectID;
#endif /* !macintosh && !WIN32 */
#ifdef __cplusplus
extern "C" {
#endif
int CompatLoadLibrary(CompatConnectID * connID, const char *name_dll);
// return false if failed
// mac : name_dll is the fragment name of the shared library
// others : name_dll is the filename of the library
int CompatCloseLibrary(CompatConnectID * connID);
// unload the shared library, connID should not
// be used anymore after this call
// CompatCallLibrary(CompatConnectID ID, <atype> result, macFuncDescInfo idf,
// const char *nf, <atype> tf, <arguments...>
//
// Call a function named "nf", prototype "tf", macDescInfo idf (0 if not mac)
// with the arguments "a1", "a2"... and put the result in "res"
#if defined(macintosh) && !TARGET_API_MAC_CARBON
extern UniversalProcPtr sCompatProc;
# define CompatCallLibrary1(ID, res, idf, nf, tf, a1) \
( \
sCompatProc = _CompatCallLibrary(ID, idf, nf), \
res = sCompatProc != NULL ? \
CallUniversalProc(sCompatProc, idf, a1) : res, \
sCompatProc != NULL ? (DisposeRoutineDescriptor(sCompatProc), true) : false \
)
# define CompatCallLibrary2(ID, res, idf, nf, tf, a1, a2) \
( \
sCompatProc = _CompatCallLibrary(ID, idf, nf), \
res = sCompatProc != NULL ? \
CallUniversalProc(sCompatProc, idf, a1, a2) : res, \
sCompatProc != NULL ? (DisposeRoutineDescriptor(sCompatProc), true) : false \
)
# define CompatCallLibrary3(ID, res, idf, nf, tf, a1, a2, a3) \
( \
sCompatProc = _CompatCallLibrary(ID, idf, nf), \
res = sCompatProc != NULL ? \
CallUniversalProc(sCompatProc, idf, a1, a2, a3) : res, \
sCompatProc != NULL ? (DisposeRoutineDescriptor(sCompatProc), true) : false \
)
UniversalProcPtr _CompatCallLibrary(CompatConnectID connID, long id_func, const char *name_func);
#else /* !macintosh || TARGET_API_MAC_CARBON */
extern void *sCompatProc;
# define CompatCallLibrary1(ID, res, idf, nf, tf, a1) \
( \
sCompatProc = _CompatCallLibrary(ID, nf), \
res = sCompatProc != NULL ? \
((tf)sCompatProc)(a1) : res, \
sCompatProc != NULL \
)
# define CompatCallLibrary2(ID, res, idf, nf, tf, a1, a2) \
( \
sCompatProc = _CompatCallLibrary(ID, nf), \
res = sCompatProc != NULL ? \
((tf)sCompatProc)(a1, a2) : res, \
sCompatProc != NULL \
)
# define CompatCallLibrary3(ID, res, idf, nf, tf, a1, a2, a3) \
( \
sCompatProc = _CompatCallLibrary(ID, nf), \
res = sCompatProc != NULL ? \
((tf)sCompatProc)(a1, a2, a3) : res, \
sCompatProc != NULL \
)
void *_CompatCallLibrary(CompatConnectID connID, const char *name_func);
#endif /* !macintosh || TARGET_API_MAC_CARBON */
// used with CompatCallLibrary when you want to give a function
// as an argument : for mac funcInfo is the desc. of the function
// arguments, if not 0
#if defined(macintosh) && !TARGET_API_MAC_CARBON
# define CompatFuncArg(funcInfo, func) \
NewRoutineDescriptor((ProcPtr)func, funcInfo, kPowerPCISA)
#else /* !macintosh || TARGET_API_MAC_CARBON */
# define CompatFuncArg(funcInfo, func) func
#endif /* macintosh || TARGET_API_MAC_CARBON */
#ifdef __cplusplus
}
#endif
#endif /* DLLLOADER_H */
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