CVS-154700, Implement LoadLibrary for windows with GetProcAddress

src/dags/custom_node_library_manager.cpp

@@ -114,11 +114,73 @@ Status CustomNodeLibraryManager::loadLibrary(const std::string& name, const std:
     SPDLOG_LOGGER_INFO(modelmanager_logger, "Successfully loaded custom node library name: {}; base_path: {}", name, basePath);
 #elif _WIN32
     // TODO: implement LoadLibrary for windows with GetProcAddress
-    void* handle = NULL;
-    if (handle == NULL) {
+    HMODULE handle = LoadLibraryA(basePath.c_str());
+    DWORD error = GetLastError();
+    // void* handle = NULL;
+    if (!handle) {
         SPDLOG_LOGGER_ERROR(modelmanager_logger, "Library name: {} failed to open base_path: {} with error: {}", name, basePath, "e");
         return StatusCode::NODE_LIBRARY_LOAD_FAILED_OPEN;
     }
+
+    initialize_fn initialize = reinterpret_cast<initialize_fn>(GetProcAddress(handle, "initialize"));
+    if (!initialize) {
+        error = GetLastError();
+        SPDLOG_LOGGER_ERROR(modelmanager_logger, "Failed to load library name: {} with error: {}", name, error);
+        FreeLibrary(handle);
+        return StatusCode::NODE_LIBRARY_LOAD_FAILED_SYM;
+    }
+
+    deinitialize_fn deinitialize = reinterpret_cast<deinitialize_fn>(GetProcAddress(handle, "deinitialize"));
+    if (!deinitialize) {
+        error = GetLastError();
+        SPDLOG_LOGGER_ERROR(modelmanager_logger, "Failed to load library name: {} with error: {}", name, error);
+        FreeLibrary(handle);
+        return StatusCode::NODE_LIBRARY_LOAD_FAILED_SYM;
+    }
+
+    execute_fn execute = reinterpret_cast<execute_fn>(GetProcAddress(handle, "execute"));
+    if (!execute) {
+        error = GetLastError();
+        SPDLOG_LOGGER_ERROR(modelmanager_logger, "Failed to load library name: {} with error: {}", name, error);
+        FreeLibrary(handle);
+        return StatusCode::NODE_LIBRARY_LOAD_FAILED_SYM;
+    }
+
+    metadata_fn getInputsInfo = reinterpret_cast<metadata_fn>(GetProcAddress(handle, "getInputsInfo"));
+    if (!getInputsInfo) {
+        error = GetLastError();
+        SPDLOG_LOGGER_ERROR(modelmanager_logger, "Failed to load library name: {} with error: {}", name, error);
+        FreeLibrary(handle);
+        return StatusCode::NODE_LIBRARY_LOAD_FAILED_SYM;
+    }
+
+    metadata_fn getOutputsInfo = reinterpret_cast<metadata_fn>(GetProcAddress(handle, "getOutputsInfo"));
+    if (!getOutputsInfo) {
+        error = GetLastError();
+        SPDLOG_LOGGER_ERROR(modelmanager_logger, "Failed to load library name: {} with error: {}", name, error);
+        FreeLibrary(handle);
+        return StatusCode::NODE_LIBRARY_LOAD_FAILED_SYM;
+    }
+
+    release_fn release = reinterpret_cast<release_fn>(GetProcAddress(handle, "release"));
+    if (!release) {
+        error = GetLastError();
+        SPDLOG_LOGGER_ERROR(modelmanager_logger, "Failed to load library name: {} with error: {}", name, error);
+        FreeLibrary(handle);
+        return StatusCode::NODE_LIBRARY_LOAD_FAILED_SYM;
+    }
+
+    libraries[name] = NodeLibrary{
+        initialize,
+        deinitialize,
+        execute,
+        getInputsInfo,
+        getOutputsInfo,
+        release,
+        basePath};
+
+    SPDLOG_LOGGER_INFO(modelmanager_logger, "Successfully loaded custom node library name: {}; base_path: {}", name, basePath);
+
 #endif
 
     return StatusCode::OK;