SDL_sysloadso.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
slouken@libsdl.org
*/
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#include "SDL_config.h"
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* System dependent library loading routines */
#include <stdio.h>
#include <string.h>
#define OLDP2C 1
#include <Strings.h>
#include <CodeFragments.h>
#include <Errors.h>
#include "SDL_loadso.h"
void *SDL_LoadObject(const char *sofile)
{
void *handle = NULL;
const char *loaderror = NULL;
CFragConnectionID library_id;
Ptr mainAddr;
Str255 errName;
OSErr error;
char psofile[512];
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SDL_strlcpy(psofile, sofile, SDL_arraysize(psofile));
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error = GetSharedLibrary(C2PStr(psofile), kCompiledCFragArch,
kLoadCFrag, &library_id, &mainAddr, errName);
switch (error) {
case noErr:
loaderror = NULL;
break;
case cfragNoLibraryErr:
loaderror = "Library not found";
break;
case cfragUnresolvedErr:
loaderror = "Unabled to resolve symbols";
break;
case cfragNoPrivateMemErr:
case cfragNoClientMemErr:
loaderror = "Out of memory";
break;
default:
loaderror = "Unknown Code Fragment Manager error";
break;
}
if ( loaderror == NULL ) {
handle = (void *)(library_id);
} else {
SDL_SetError("Failed loading %s: %s", sofile, loaderror);
}
return(handle);
}
void *SDL_LoadFunction(void *handle, const char *name)
{
void *symbol = NULL;
const char *loaderror = NULL;
CFragSymbolClass class;
CFragConnectionID library_id = (CFragConnectionID)handle;
char pname[512];
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SDL_strlcpy(pname, name, SDL_arraysize(pname));
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if ( FindSymbol(library_id, C2PStr(pname),
(char **)&symbol, &class) != noErr ) {
loaderror = "Symbol not found";
}
if ( symbol == NULL ) {
SDL_SetError("Failed loading %s: %s", name, loaderror);
}
return(symbol);
}
void SDL_UnloadObject(void *handle)
{
CFragConnectionID library_id;
if ( handle != NULL ) {
library_id = (CFragConnectionID)handle;
CloseConnection(&library_id);
}
}