Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/winpr/libwinpr/utils/collections/MessagePipe.c

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+/**
+ * WinPR: Windows Portable Runtime
+ * Message Pipe
+ *
+ * Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <winpr/config.h>
+
+#include <winpr/crt.h>
+#include <winpr/sysinfo.h>
+
+#include <winpr/collections.h>
+
+/**
+ * Properties
+ */
+
+/**
+ * Methods
+ */
+
+void MessagePipe_PostQuit(wMessagePipe* pipe, int nExitCode)
+{
+	MessageQueue_PostQuit(pipe->In, nExitCode);
+	MessageQueue_PostQuit(pipe->Out, nExitCode);
+}
+
+/**
+ * Construction, Destruction
+ */
+
+wMessagePipe* MessagePipe_New(void)
+{
+	wMessagePipe* pipe = nullptr;
+
+	pipe = (wMessagePipe*)malloc(sizeof(wMessagePipe));
+
+	if (!pipe)
+		return nullptr;
+
+	pipe->In = MessageQueue_New(nullptr);
+	if (!pipe->In)
+		goto error_in;
+
+	pipe->Out = MessageQueue_New(nullptr);
+	if (!pipe->Out)
+		goto error_out;
+
+	return pipe;
+
+error_out:
+	MessageQueue_Free(pipe->In);
+error_in:
+	free(pipe);
+	return nullptr;
+}
+
+void MessagePipe_Free(wMessagePipe* pipe)
+{
+	if (pipe)
+	{
+		MessageQueue_Free(pipe->In);
+		MessageQueue_Free(pipe->Out);
+
+		free(pipe);
+	}
+}