Minor changes for YModemReceive with timers and signals

TimeoutSerial.cpp

@@ -73,9 +73,9 @@ void TimeoutSerial::setTimeout(const boost::posix_time::time_duration& t)
     timeout=t;
 }
 
-void TimeoutSerial::write(const char *data, size_t size)
+size_t TimeoutSerial::write(const char *data, size_t size)
 {
-    asio::write(port,asio::buffer(data,size));
+    return asio::write(port,asio::buffer(data,size));
 }
 
 void TimeoutSerial::write(const std::vector<char>& data)
@@ -88,7 +88,7 @@ void TimeoutSerial::writeString(const std::string& s)
     asio::write(port,asio::buffer(s.c_str(),s.size()));
 }
 
-void TimeoutSerial::read(char *data, size_t size)
+size_t TimeoutSerial::read(char *data, size_t size)
 {
     if(readData.size()>0)//If there is some data from a previous read
     {
@@ -97,7 +97,7 @@ void TimeoutSerial::read(char *data, size_t size)
         is.read(data,toRead);
         data+=toRead;
         size-=toRead;
-        if(size==0) return;//If read data was enough, just return
+        if(size==0) return 0;//If read data was enough, just return
     }
     
     setupParameters=ReadSetupParameters(data,size);
@@ -120,7 +120,7 @@ void TimeoutSerial::read(char *data, size_t size)
         {
             case resultSuccess:
                 timer.cancel();
-                return;
+                return this->bytesTransferred;
             case resultTimeoutExpired:
                 port.cancel();
                 throw(timeout_exception("Timeout expired"));