Add comments

sstp/clientsocketsender.cpp

@@ -1,5 +1,8 @@
 #include <sstp/clientsocketsender.hpp>
 
+/// @brief Establish a connection to the socket specified by ipAddress and port
+/// @param ipAddress The ipAddress
+/// @param port  The port
 ClientSocketSender::ClientSocketSender(String ipAddress, int port)
 : mIPAddress(ipAddress), mPort(port)
 {
@@ -26,11 +29,15 @@ ClientSocketSender::ClientSocketSender(String ipAddress, int port)
     }
 }
 
+
+/// @brief Close the connection on destruction
 ClientSocketSender::~ClientSocketSender()
 {
   close();
 }
 
+/// @brief Closes the connection
+/// @param  
 void ClientSocketSender::close(void)
 {
   if(-1!=mSocket)
@@ -40,6 +47,9 @@ void ClientSocketSender::close(void)
   }
 }
   
+/// @brief Send the specified file through the connection
+/// @param pathFileName The file to send
+/// @return Returns true if successful
 bool ClientSocketSender::sendFile(String &pathFileName)
 {
   Profiler profiler;

sstp/clientsocketsender.hpp

@@ -1,5 +1,5 @@
-#ifndef _LISTENER_CLIENTSOCKETSENDER_HPP_
-#define _LISTENER_CLIENTSOCKETSENDER_HPP_
+#ifndef _SSTP_CLIENTSOCKETSENDER_HPP_
+#define _SSTP_CLIENTSOCKETSENDER_HPP_
 #include <stdio.h>
 #include <iostream>
 #include <sys/types.h>
@@ -21,8 +21,7 @@ class ClientSocketSender
   bool sendFile(String &pathFileName);
   bool isOkay(void);
   private:
-//    static constexpr int BUFFER_LENGTH=65536;
-    static constexpr int BUFFER_LENGTH=1048576;
+    static constexpr int BUFFER_LENGTH=1048576; // This buffer length is used for both reading the file and also the packet transmission length 
     void close(void);
     bool sendPacketIndicator(DWORD bytesToSend);
     bool sendPacket(Array<char> &buffer,DWORD bytesToSend);

sstp/socketconnectionreceiver.cpp

@@ -2,15 +2,22 @@
 #include <common/utility.hpp>
 #include <common/stringbuffer.hpp>
 
+/// @brief After a connection has been accepted the SocketConnectionReceiver is initialized with the incoming socket
+/// @param socket 
+/// @param internalSocketAddress 
 SocketConnectionReceiver::SocketConnectionReceiver(int socket, sockaddr_in internalSocketAddress)
 : mSocket(socket), mInternalSocketAddress(internalSocketAddress)
 {
 }
 
+/// @brief The destructor will close the socket
 SocketConnectionReceiver::~SocketConnectionReceiver()
 {
+  close();
 }
 
+/// @brief Close the socket and set the mSocket variable to -1
+/// @param  
 void SocketConnectionReceiver::close(void)
 {
   if(-1==mSocket)return;
@@ -19,6 +26,8 @@ void SocketConnectionReceiver::close(void)
   mSocket=-1;
 }
 
+/// @brief The threadFunction will handle the lifetime of the socket connection.  When a QUIT is received the socket will be closed and the thread method will exit
+/// @param data 
 void SocketConnectionReceiver::threadFunction(int data)
 {
   String line;
@@ -30,7 +39,11 @@ void SocketConnectionReceiver::threadFunction(int data)
       std::cout << "Received an empty command" << std::endl;
       break;
     }
-    if(line=="QUIT" || line=="quit")break;
+    if(line=="QUIT" || line=="quit")
+    {
+      handleQuit();
+      break;
+    }
     Block<String> commands = line.split('|');
     if(0==commands.size())continue;
     commands[0].upper();
@@ -49,9 +62,9 @@ void SocketConnectionReceiver::threadFunction(int data)
 
 /// @brief The client wants to put a file.  put {filename} {lengthbytes}
 /// @param commands [0]=PUT, [1]=filename, [2]=total length
-/// This will read PCKT {length}.
-/// The connection will continue reading and writing until it receives PCKT 0
-/// @return 
+/// This message contains PUT|{filename}|{lengthbytes} followed by as many PCKT|{length} packets as needed to read the entire file contents and save to disk
+/// The connection will continue reading packets and saving data to disk until it receives PCKT 0 which signals the end of transmission
+/// @return true or false
 bool SocketConnectionReceiver::handlePut(Block<String> &commands)
 {
   Profiler profiler;
@@ -61,6 +74,7 @@ bool SocketConnectionReceiver::handlePut(Block<String> &commands)
   String fileName;
   size_t fileLength;
   size_t totalBytesRead=0;
+  size_t totalPacketsRead=0;
 
   fileName = commands[1];
   fileLength = commands[commands.size()-1].toLong();
@@ -93,6 +107,7 @@ bool SocketConnectionReceiver::handlePut(Block<String> &commands)
     receiveBuffer.size(bufferLength);
     size_t bytes_read = read(receiveBuffer);
     totalBytesRead+=bytes_read;
+    totalPacketsRead++;
     if(bufferLength!=bytes_read)
     {
       std::cout << "Send/Receive size mismatch.  The client indicated a data length of " << Utility::formatNumber(bufferLength) << " but a data length of " << Utility::formatNumber(bytes_read) << " was received";
@@ -108,14 +123,16 @@ bool SocketConnectionReceiver::handlePut(Block<String> &commands)
       String strBytesPerSecond = Utility::byteCountToString(bytesPerSecond);
       std::cout << "Transferred " << Utility::byteCountToString(totalBytesRead,false) << " of " << Utility::byteCountToString(fileLength,false) << " " << percent << " percent " << strBytesPerSecond << std::endl;
     }
-
   }
-  std::cout << "Transfer complete" << std::endl;
-  std::cout << "Received " << Utility::byteCountToString(totalBytesRead,false) << " in " << Utility::formatNumber(profiler.end()) << "(ms)" << std::endl;
   writeFile.close();
+  std::cout << "Transfer complete.  Total packets received " << Utility::formatNumber(totalPacketsRead) << std::endl;
+  std::cout << "Received " << Utility::byteCountToString(totalBytesRead,false) << " in " << Utility::formatNumber(profiler.end()) << "(ms)" << std::endl;
   return totalBytesRead==fileLength;
 }
 
+/// @brief Read a PCKT message from the socket and return the length.  This message is of the form PCKT|{length} and the method returns the second parameter (length)
+/// @param  
+/// @return 
 size_t SocketConnectionReceiver::expectPacket(void)
 {
   Block<String> subCommands;
@@ -144,6 +161,9 @@ size_t SocketConnectionReceiver::expectPacket(void)
   return bufferLength;
 }
 
+/// @brief Read a '\r\n' terminated string from the socket.  Return the number of bytes read
+/// @param line The string to read data into
+/// @return 
 size_t SocketConnectionReceiver::readLine(String &line)
 {
     size_t bytes_read = 0;
@@ -169,6 +189,9 @@ size_t SocketConnectionReceiver::readLine(String &line)
     return total_bytes;
 }
 
+/// @brief Read bytes from a socket into the provided buffer.
+/// @param buffer The buffer must be pre-allocated to a given length.  The read operation will continue until all bytes in the buffer have been read
+/// @return 
 size_t SocketConnectionReceiver::read(Array<char> &buffer)
 {
     size_t bytes_read = 0;
@@ -185,3 +208,10 @@ size_t SocketConnectionReceiver::read(Array<char> &buffer)
     }
     return total_bytes_read;
 }
+
+/// @brief Handle a QUIT message... which just displays 
+/// @param  
+void SocketConnectionReceiver::handleQuit(void)
+{
+  std::cout << "Received QUIT" << std::endl;
+}

sstp/socketconnectionreceiver.hpp

@@ -1,5 +1,5 @@
-#ifndef _LISTENER_SOCKETCONNECTIONRECEIVER_HPP_
-#define _LISTENER_SOCKETCONNECTIONRECEIVER_HPP_
+#ifndef _SSTP_SOCKETCONNECTIONRECEIVER_HPP_
+#define _SSTP_SOCKETCONNECTIONRECEIVER_HPP_
 #include <stdio.h>
 #include <iostream>
 #include <sys/types.h>
@@ -23,6 +23,7 @@ class SocketConnectionReceiver
     static constexpr size_t BUFFER_LENGTH=65536;   // this is the buffer length for the socket  
     void threadFunction(int data);
     bool handlePut(Block<String> &commands);
+    void handleQuit(void);
     size_t readLine(String &line);
     size_t expectPacket(void);
     size_t read(Array<char> &buffer);    

sstp/socketserver.cpp

@@ -37,17 +37,22 @@ SocketServer::SocketServer(int port)
   mIsOkay=true;
 }
 
+/// @brief Close down the listener
 SocketServer::~SocketServer()
 {
-  std::cout << "~SocketServer()" << std::endl;
   close();
 }
 
+/// @brief returns true if we have a valid socket connection otherwise false
+/// @return 
 bool SocketServer::isOkay(void)
 {
   return mIsOkay;
 }
 
+/// @brief This is the listener.  It will wait for incoming connections.
+/// When an incoming connection is received it will create a SocketConnectionReceiver object and call it's threadFunction to handle further interactions
+/// such as transmitting a file.
 void SocketServer::listen(void)
 {
   while(isOkay())
@@ -75,6 +80,8 @@ void SocketServer::listen(void)
   }
 }
 
+/// @brief Shut down the listener socket
+/// @param  
 void SocketServer::close(void)
 {
   if(-1!=mSocketFileDescriptor)