1 files changed, 106 insertions, 0 deletions
diff --git a/src/uscxml/plugins/Pluma/DLibrary.cpp b/src/uscxml/plugins/Pluma/DLibrary.cpp
new file mode 100755
index 0000000..9b617db
--- /dev/null
+++ b/src/uscxml/plugins/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
+