mirror of
https://github.com/ptitSeb/Serious-Engine
synced 2024-10-06 16:04:51 +02:00
24cb244d43
This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
123 lines
2.5 KiB
C++
123 lines
2.5 KiB
C++
/* Copyright (c) 2002-2012 Croteam Ltd. All rights reserved. */
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/* rcg10072001 Implemented. */
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#include <dlfcn.h>
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#include <Engine/Engine.h>
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#include <Engine/Base/DynamicLoader.h>
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class CUnixDynamicLoader : public CDynamicLoader
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{
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public:
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CUnixDynamicLoader(const char *libname);
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virtual ~CUnixDynamicLoader(void);
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virtual void *FindSymbol(const char *sym);
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virtual const char *GetError(void);
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protected:
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void DoOpen(const char *lib);
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void SetError(void);
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void *module;
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CTString *err;
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};
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CDynamicLoader *CDynamicLoader::GetInstance(const char *libname)
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{
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return(new CUnixDynamicLoader(libname));
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}
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void CUnixDynamicLoader::SetError(void)
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{
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const char *errmsg = ::dlerror();
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delete err;
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err = NULL;
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if (errmsg != NULL)
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{
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CPrintF("CUnixDynamicLoader error: %s\n", errmsg);
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err = new CTString(errmsg);
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}
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}
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const char *CUnixDynamicLoader::GetError(void)
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{
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return((err) ? (const char *) (*err) : NULL);
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}
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void *CUnixDynamicLoader::FindSymbol(const char *sym)
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{
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//printf("Looking for symbol %s\n", sym);
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void *retval = NULL;
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if (module != NULL) {
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retval = ::dlsym(module, sym);
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SetError();
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}
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return(retval);
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}
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void CUnixDynamicLoader::DoOpen(const char *lib)
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{
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module = ::dlopen(lib, RTLD_LAZY | RTLD_GLOBAL);
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SetError();
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}
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CTFileName CDynamicLoader::ConvertLibNameToPlatform(const char *libname)
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{
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#if PLATFORM_MACOSX
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const char *DLLEXTSTR = ".dylib";
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#else
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const char *DLLEXTSTR = ".so";
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#endif
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CTFileName fnm = CTString(libname);
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CTString libstr((strncmp("lib", fnm.FileName(), 3) == 0) ? "" : "lib");
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return(fnm.FileDir() + libstr + fnm.FileName() + DLLEXTSTR);
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}
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CUnixDynamicLoader::CUnixDynamicLoader(const char *libname)
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: module(NULL),
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err(NULL)
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{
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if (libname == NULL) {
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DoOpen(NULL);
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} else {
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CTFileName fnm = ConvertLibNameToPlatform(libname);
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// Always try to dlopen from inside the game dirs before trying
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// system libraries...
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if (fnm.FileDir() == "") {
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char buf[MAX_PATH];
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_pFileSystem->GetExecutablePath(buf, sizeof (buf));
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CTFileName fnmDir = CTString(buf);
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fnmDir = fnmDir.FileDir() + fnm;
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DoOpen(fnmDir);
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if (module != NULL) {
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return;
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}
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}
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DoOpen(fnm);
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}
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}
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CUnixDynamicLoader::~CUnixDynamicLoader(void)
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{
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delete err;
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if (module != NULL)
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::dlclose(module);
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}
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// end of UnixDynamicLoader.cpp ...
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