daemon parameter '--retries' (number retries send ebus command) added.

src/ebusloop.cpp

@@ -35,6 +35,8 @@ EBusLoop::EBusLoop() : m_stop(false)
 		        A.getParam<long>("p_dumpsize"),
 		        A.getParam<bool>("p_dump"));
 
+	m_retries = A.getParam<int>("p_retries");
+
 	m_bus->connect();
 
 	if (m_bus->isConnected() == false)
@@ -54,6 +56,7 @@ EBusLoop::~EBusLoop()
 void* EBusLoop::run()
 {
 	int busResult;
+	int retries = 0;
 	bool busCommandActive = false;
 
 	for (;;) {
@@ -85,9 +88,18 @@ void* EBusLoop::run()
 				m_bus->sendCommand();
 				BusCommand* busCommand = m_bus->recvCommand();
 				L.log(bus, trace, " %s", busCommand->getResult().c_str());
+
+				if (busCommand->getResult().c_str()[0] == '-' && retries < m_retries) {
+					retries++;
+					L.log(bus, trace, " retry number: %d", retries);
+					busCommand->setResult(std::string());
+					m_bus->addCommand(busCommand);
+				} else {
+					retries = 0;
 					m_recvBuffer.add(busCommand);
 					busCommandActive = false;
 				}
+			}
 
 			if (busResult == 0)
 				L.log(bus, trace, " getBus failure");

src/ebusloop.h

@@ -51,6 +51,7 @@ private:
 	bool m_stop;
 	WQueue<BusCommand*> m_sendBuffer;
 	WQueue<BusCommand*> m_recvBuffer;
+	int m_retries;
 
 };
 

src/main.cpp

@@ -60,6 +60,10 @@ void define_args()
 		  "disable valid ebus device test\n",
 		  Appl::type_bool, Appl::opt_none);
 
+	A.addItem("p_retries", Appl::Param(2), "r", "retries",
+		  "\tnumber retries send ebus command (default: 2)\n",
+		  Appl::type_int, Appl::opt_mandatory);
+
 	A.addItem("p_ebusconfdir", Appl::Param("/etc/ebus-daemon"), "e", "ebusconfdir",
 		  "directory for ebus configuration (default: /etc/ebus-daemon)\n",
 		  Appl::type_string, Appl::opt_mandatory);