How to send Protocol Buffer object using Winsock2? - sockets

Question

I am creating a client server app using a simple socket to transfer Protocol Buffer objects between C++ and Java. I have it created on the Java side both as the client and receiver. I even got the Java to send to C++ but I am having trouble with sending from C++ to Java. Not sure how to write it. First I am sending the size and then reading the proto object.
I am using Visual Studio C++ 2008. DataGram and Bookmartlet are my proto objects.
Here is my C++ Sender Client
int loopt = 99;
do {
DataGram dataGram;
dataGram.set_state("ACK");
time ( &rawtime );
dataGram.set_status(ctime(&rawtime));
Bookmarklet* bookmarklet = dataGram.mutable_bookmarklet();
bookmarklet->set_name("TEST");
bookmarklet->set_utl("TEST");
dataGram.SerializeToArray(recvbuf,recvbuflen);
dataGram.ByteSize();
//Trouble SPOT
send(ConnectSocket,size,1,0);
send(ConnectSocket,recvbuf,recvbuflen,0);
} while (loopt > 0);
This is what I am trying to replicate from Java.
OutputStream output = socket.getOutputStream();
try {
int testtimes = 99;
while (socket.isConnected() && testtimes > 0) {
Thread.sleep(1000); // do nothing for 1000 miliseconds (1
// second)
DataGram dataGram = null;
Bookmarklet bookmarklet = Bookmarklet.newBuilder()
.setName("TEST").setUtl("TEST").build();
if (testtimes % 2 == 0) {
dataGram = DataGram.newBuilder().setState("ACK")
.setBookmarklet(bookmarklet)
.setStatus(new Date().toGMTString()).build();
} else {
dataGram = DataGram.newBuilder().setState("ACK")
.setStatus(new Date().toGMTString()).build();
}
output.write(dataGram.getSerializedSize());
output.write(dataGram.toByteArray());
testtimes--;
}
} catch (Exception e) {
e.printStackTrace();
}
Any help would be great. Thanks.
Client in Java for Reference:
InputStream input = socket.getInputStream();
int count = input.read();
int counter = 0;
while (count > 0) {
byte[] buffer = new byte[count];
count = input.read(buffer);
DataGram dataGram = DataGram.parseFrom(buffer);
Bookmarklet bookmarklet = null;
if ((bookmarklet = dataGram.getBookmarklet()) != null) {
System.out.println(bookmarklet.toString());
}
System.out.println(dataGram.getState() + " "
+ dataGram.getStatus());
count = input.read();
System.out.println(++counter);
}