diff options
Diffstat (limited to 'contrib/src/Pluma/DLibrary.cpp')
-rwxr-xr-x | contrib/src/Pluma/DLibrary.cpp | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/contrib/src/Pluma/DLibrary.cpp b/contrib/src/Pluma/DLibrary.cpp new file mode 100755 index 0000000..9b617db --- /dev/null +++ b/contrib/src/Pluma/DLibrary.cpp @@ -0,0 +1,106 @@ +////////////////////////////////////////////////////////////
+//
+// Pluma - Plug-in Management Framework
+// Copyright (C) 2010-2012 Gil Costa (gsaurus@gmail.com)
+//
+// This software is provided 'as-is', without any express or implied warranty.
+// In no event will the authors be held liable for any damages arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it freely,
+// subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented;
+// you must not claim that you wrote the original software.
+// If you use this software in a product, an acknowledgment
+// in the product documentation would be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such,
+// and must not be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source distribution.
+//
+////////////////////////////////////////////////////////////
+
+
+////////////////////////////////////////////////////////////
+// Headers
+////////////////////////////////////////////////////////////
+#include <Pluma/DLibrary.hpp>
+#include <cstdio>
+#include <string>
+
+
+namespace pluma{
+
+////////////////////////////////////////////////////////////
+DLibrary* DLibrary::load(const std::string& path){
+ if ( path.empty() ){
+ fprintf(stderr, "Failed to load library: Empty path\n");
+ return NULL;
+ }
+ void* handle = NULL;
+
+ // load library - OS dependent operation
+ #ifdef PLUMA_SYS_WINDOWS
+ handle = ::LoadLibraryA(path.c_str());
+ if (!handle){
+ fprintf(stderr, "Failed to load library \"%s\".\n", path.c_str());
+ return NULL;
+ }
+ #else
+ handle = ::dlopen(path.c_str(), RTLD_NOW);
+ if (!handle){
+ const char* errorString = ::dlerror();
+ fprintf(stderr, "Failed to load library \"%s\".", path.c_str());
+ if(errorString) fprintf(stderr, " OS returned error: \"%s\".", errorString);
+ fprintf(stderr, "\n");
+ return NULL;
+ }
+ #endif
+ // return a DLibrary with the DLL handle
+ return new DLibrary(handle);
+}
+
+
+////////////////////////////////////////////////////////////
+DLibrary::~DLibrary(){
+ if (handle){
+ #ifdef PLUMA_SYS_WINDOWS
+ ::FreeLibrary( (HMODULE)handle );
+ #else
+ ::dlclose(handle);
+ #endif
+ }
+}
+
+
+////////////////////////////////////////////////////////////
+void* DLibrary::getSymbol(const std::string& symbol){
+ if (!handle){
+ fprintf(stderr, "Cannot inspect library symbols, library isn't loaded.\n");
+ return NULL;
+ }
+ void* res;
+ #ifdef PLUMA_SYS_WINDOWS
+ res = (void*)(::GetProcAddress((HMODULE)handle, symbol.c_str()));
+ #else
+ res = (void*)(::dlsym(handle, symbol.c_str()));
+ #endif
+ if (!res){
+ fprintf(stderr, "Library symbol \"%s\" not found.\n", symbol.c_str());
+ return NULL;
+ }
+ return res;
+}
+
+
+////////////////////////////////////////////////////////////
+DLibrary::DLibrary(void* handle):
+ handle(handle)
+{
+ // Nothing to do
+}
+
+} // namespace pluma
+
|