[992] Changes after review.

ChangeLog

+3XX.	[func]		tomek
+	dhcp4: Dummy DHCPv4 component implemented. Currently it does
+	nothing useful, except providing skeleton implementation that can
+	be expanded in the future.
+	(Trac #992, git TBD)
+
 328.	[func]		jelte
 	b10-auth now passes IXFR requests on to b10-xfrout, and no longer
 	responds to them with NOTIMPL.

src/bin/dhcp4/dhcp4_srv.cc

@@ -34,7 +34,7 @@ Dhcpv4Srv::Dhcpv4Srv(uint16_t port) {
 
     setServerID();
 
-    shutdown = false;
+    shutdown_ = false;
 }
 
 Dhcpv4Srv::~Dhcpv4Srv() {
@@ -43,7 +43,7 @@ Dhcpv4Srv::~Dhcpv4Srv() {
 
 bool
 Dhcpv4Srv::run() {
-    while (!shutdown) {
+    while (!shutdown_) {
         boost::shared_ptr<Pkt4> query; // client's message
         boost::shared_ptr<Pkt4> rsp;   // server's response
 
@@ -127,28 +127,28 @@ Dhcpv4Srv::setServerID() {
 }
 
 boost::shared_ptr<Pkt4>
-Dhcpv4Srv::processDiscover(boost::shared_ptr<Pkt4> discover) {
+Dhcpv4Srv::processDiscover(boost::shared_ptr<Pkt4>& discover) {
     /// TODO: Currently implemented echo mode. Implement this for real
     return (discover);
 }
 
 boost::shared_ptr<Pkt4>
-Dhcpv4Srv::processRequest(boost::shared_ptr<Pkt4> request) {
+Dhcpv4Srv::processRequest(boost::shared_ptr<Pkt4>& request) {
     /// TODO: Currently implemented echo mode. Implement this for real
     return (request);
 }
 
-void Dhcpv4Srv::processRelease(boost::shared_ptr<Pkt4> release) {
+void Dhcpv4Srv::processRelease(boost::shared_ptr<Pkt4>& release) {
     /// TODO: Implement this.
     cout << "Received RELEASE on " << release->getIface() << " interface." << endl;
 }
 
-void Dhcpv4Srv::processDecline(boost::shared_ptr<Pkt4> decline) {
+void Dhcpv4Srv::processDecline(boost::shared_ptr<Pkt4>& decline) {
     /// TODO: Implement this.
     cout << "Received DECLINE on " << decline->getIface() << " interface." << endl;
 }
 
-boost::shared_ptr<Pkt4> Dhcpv4Srv::processInform(boost::shared_ptr<Pkt4> inform) {
+boost::shared_ptr<Pkt4> Dhcpv4Srv::processInform(boost::shared_ptr<Pkt4>& inform) {
     /// TODO: Currently implemented echo mode. Implement this for real
     return (inform);
 }

src/bin/dhcp4/dhcp4_srv.h

@@ -35,13 +35,17 @@ namespace dhcp {
 /// appropriate responses.
 class Dhcpv4Srv : public boost::noncopyable {
 
-public:
+    public:
     /// @brief Default constructor.
     ///
     /// Instantiates necessary services, required to run DHCPv6 server.
     /// In particular, creates IfaceMgr that will be responsible for
     /// network interaction. Will instantiate lease manager, and load
-    /// old or create new DUID.
+    /// old or create new DUID. It is possible to specify alternate
+    /// port on which DHCPv4 server will listen on. That is mostly useful
+    /// for testing purposes.
+    ///
+    /// @param port specifies port number to listen on
     Dhcpv4Srv(uint16_t port = DHCP4_SERVER_PORT);
 
     /// @brief Destructor. Used during DHCPv6 service shutdown.
@@ -68,13 +72,13 @@ protected:
     ///
     /// @return OFFER message or NULL
     boost::shared_ptr<Pkt4>
-    processDiscover(boost::shared_ptr<Pkt4> discover);
+    processDiscover(boost::shared_ptr<Pkt4>& discover);
 
     /// @brief Processes incoming REQUEST and returns REPLY response.
     ///
     /// Processes incoming REQUEST message and verifies that its sender
     /// should be served. In particular, verifies that requested lease
-    /// is valid, not expired, not reserved, not used by other client and 
+    /// is valid, not expired, not reserved, not used by other client and
     /// that requesting client is allowed to use it.
     ///
     /// Returns ACK message, NACK message, or NULL
@@ -82,7 +86,7 @@ protected:
     /// @param request a message received from client
     ///
     /// @return ACK or NACK message
-    boost::shared_ptr<Pkt4> processRequest(boost::shared_ptr<Pkt4> request);
+    boost::shared_ptr<Pkt4> processRequest(boost::shared_ptr<Pkt4>& request);
 
     /// @brief Stub function that will handle incoming RELEASE messages.
     ///
@@ -90,17 +94,17 @@ protected:
     /// this function does not return anything.
     ///
     /// @param release message received from client
-    void processRelease(boost::shared_ptr<Pkt4> release);
+    void processRelease(boost::shared_ptr<Pkt4>& release);
 
     /// @brief Stub function that will handle incoming DHCPDECLINE messages.
     ///
     /// @param decline message received from client
-    void processDecline(boost::shared_ptr<Pkt4> decline);
+    void processDecline(boost::shared_ptr<Pkt4>& decline);
 
     /// @brief Stub function that will handle incoming INFORM messages.
     ///
     /// @param infRequest message received from client
-    boost::shared_ptr<Pkt4> processInform(boost::shared_ptr<Pkt4> inform);
+    boost::shared_ptr<Pkt4> processInform(boost::shared_ptr<Pkt4>& inform);
 
     /// @brief Returns server-intentifier option
     ///
@@ -124,7 +128,7 @@ protected:
 
     /// indicates if shutdown is in progress. Setting it to true will
     /// initiate server shutdown procedure.
-    volatile bool shutdown;
+    volatile bool shutdown_;
 };
 
 }; // namespace isc::dhcp

src/bin/dhcp4/tests/dhcp4_srv_unittest.cc

@@ -30,7 +30,7 @@ using namespace isc::dhcp;
 namespace {
 
 class NakedDhcpv4Srv: public Dhcpv4Srv {
-    // "naked" Interface Manager, exposes internal fields
+    // "naked" DHCPv4 server, exposes internal fields
 public:
     NakedDhcpv4Srv() { }
 
@@ -69,11 +69,7 @@ TEST_F(Dhcpv4SrvTest, basic) {
         srv = new Dhcpv4Srv();
     });
 
-    if (srv) {
-        ASSERT_NO_THROW({
-            delete srv;
-        });
-    }
+    delete srv;
 }
 
 TEST_F(Dhcpv4SrvTest, processDiscover) {
@@ -91,7 +87,6 @@ TEST_F(Dhcpv4SrvTest, processDiscover) {
 
     // TODO: Implement more reasonable tests before starting
     // work on processSomething() method.
-
     delete srv;
 }
 
@@ -110,7 +105,6 @@ TEST_F(Dhcpv4SrvTest, processRequest) {
 
     // TODO: Implement more reasonable tests before starting
     // work on processSomething() method.
-
     delete srv;
 }
 
@@ -142,7 +136,6 @@ TEST_F(Dhcpv4SrvTest, processDecline) {
 
     // TODO: Implement more reasonable tests before starting
     // work on processSomething() method.
-
     delete srv;
 }
 

src/bin/dhcp4/tests/dhcp4_unittests.cc

@@ -24,5 +24,5 @@ main(int argc, char* argv[]) {
 
     int result = RUN_ALL_TESTS();
 
-    return result;
+    return (result);
 }