Throw exception instead of returning error code from send function.

Change-Id: I87d2805dfb7f8757c0366600d8937023edddf54a
Signed-off-by: Tom Joseph <tomjoseph@in.ibm.com>
diff --git a/message_handler.cpp b/message_handler.cpp
index ef9eb06..e66e39c 100644
--- a/message_handler.cpp
+++ b/message_handler.cpp
@@ -163,7 +163,7 @@
     return command;
 }
 
-int Handler::send(Message& outMessage)
+void Handler::send(Message& outMessage)
 {
     auto session = (std::get<session::Manager&>(singletonPool).getSession(
                     sessionID)).lock();
@@ -171,15 +171,12 @@
     // Flatten the packet
     auto packet = parser::flatten(outMessage, sessionHeader, *session);
 
-    // Read the packet
+    // Write the packet
     auto writeStatus = channel->write(packet);
     if (writeStatus < 0)
     {
-        std::cerr << "E> Error in writing : " << std::hex << writeStatus
-                  << "\n";
+        throw std::runtime_error("Error in writing to socket");
     }
-
-    return writeStatus;
 }
 
 void Handler::setChannelInSession() const
diff --git a/message_handler.hpp b/message_handler.hpp
index 0f553b7..882a077 100644
--- a/message_handler.hpp
+++ b/message_handler.hpp
@@ -50,17 +50,14 @@
          */
         std::unique_ptr<Message> executeCommand(Message& inMessage);
 
-        /*
-         * @brief Send the outgoing message
+        /** @brief Send the outgoing message
          *
-         * The payload in the outgoing message is flattened and sent out on the
-         * socket
+         *  The payload in the outgoing message is flattened and sent out on the
+         *  socket
          *
-         * @param[in] outMessage - Outgoing Message
-         *
-         * @return Zero on success and <0 on failure
+         *  @param[in] outMessage - Outgoing Message
          */
-        int send(Message& outMessage);
+        void send(Message& outMessage);
 
         /** @brief Set socket channel in session object */
         void setChannelInSession() const;