new task for tc unix polling

osal/linux/TcUnixUdpPollingTask.cpp

@@ -0,0 +1,8 @@
+#include <framework/osal/linux/TcSocketPollingTask.h>
+
+TcSocketPollingTask::TcSocketPollingTask(object_id_t objectId,
+		object_id_t tmtcUnixUdpBridge): SystemObject(objectId) {
+}
+
+TcSocketPollingTask::~TcSocketPollingTask() {
+}

osal/linux/TcUnixUdpPollingTask.h

@@ -0,0 +1,28 @@
+#ifndef FRAMEWORK_OSAL_LINUX_TCSOCKETPOLLINGTASK_H_
+#define FRAMEWORK_OSAL_LINUX_TCSOCKETPOLLINGTASK_H_
+#include <framework/objectmanager/SystemObject.h>
+#include <framework/tasks/ExecutableObjectIF.h>
+
+/**
+ * @brief 	This class can be used to implement the polling of a Unix socket,
+ * 			using UDP for now.
+ * @details
+ * The task will be blocked while the specified number of bytes has not been
+ * received, so TC reception is handled inside a separate task.
+ * This class caches the IP address of the sender. It is assumed there
+ * is only one sender for now.
+ */
+class TcSocketPollingTask: public SystemObject,
+		public ExecutableObjectIF {
+public:
+	TcSocketPollingTask(object_id_t objectId, object_id_t tmtcUnixUdpBridge);
+	virtual~ TcSocketPollingTask();
+
+	virtual ReturnValue_t performOperation(uint8_t opCode) override;
+	virtual ReturnValue_t initialize() override;
+private:
+};
+
+
+
+#endif /* FRAMEWORK_OSAL_LINUX_TCSOCKETPOLLINGTASK_H_ */

osal/linux/TmTcUnixUdpBridge.cpp

@@ -47,15 +47,15 @@ TmTcUnixUdpBridge::TmTcUnixUdpBridge(object_id_t objectId,
 TmTcUnixUdpBridge::~TmTcUnixUdpBridge() {
 }
 
-ReturnValue_t TmTcUnixUdpBridge::handleTc() {
-	return HasReturnvaluesIF::RETURN_OK;
-}
-
-ReturnValue_t TmTcUnixUdpBridge::receiveTc(uint8_t **recvBuffer, size_t *size) {
-	return HasReturnvaluesIF::RETURN_OK;
-}
-
 ReturnValue_t TmTcUnixUdpBridge::sendTm(const uint8_t *data, size_t dataLen) {
+	int flags = 0;
+	ssize_t result = send(serverSocket, data, dataLen, flags);
+	if(result < 0) {
+		//handle error
+		sif::error << "TmTcUnixUdpBridge::sendTm: Send operation failed "
+				"with error " << strerror(errno) << std::endl;
+	}
+
 	return HasReturnvaluesIF::RETURN_OK;
 }
 
@@ -114,5 +114,10 @@ void TmTcUnixUdpBridge::handleBindError() {
 						<< std::endl;
 		break;
 	}
-
+}
+
+
+ReturnValue_t TmTcUnixUdpBridge::receiveTc(uint8_t **recvBuffer, size_t *size) {
+	// TC reception handled by separate polling task because it is blocking.
+	return HasReturnvaluesIF::RETURN_OK;
 }

osal/linux/TmTcUnixUdpBridge.h

@@ -18,7 +18,6 @@ public:
 	virtual~ TmTcUnixUdpBridge();
 
 protected:
-	virtual ReturnValue_t handleTc() override;
 	virtual ReturnValue_t receiveTc(uint8_t ** recvBuffer,
 			size_t * size) override;
 	virtual ReturnValue_t sendTm(const uint8_t * data, size_t dataLen) override;