recv() returns 0 the second time
Hello, I want to loop through a message board and read HTML of the topics using Winsock. On the first iteration of the loop it works flawlessly - I can receive the response with no problems, however, on the next iterations recv() returns 0 immediately without even waiting for the data to arrive. Here's my code:
errno is 0 after each call to recv(). What could be the fault? Thanks.
for(set<string>::iterator it = topicIDs.begin(); it != topicIDs.end(); it++)
int iResult = 0;
string sendbuf =
"GET /phpBB3/viewtopic.php?f=7&t=" + *it + " HTTP/1.1\r\n"
"Host: <valid host>\r\n"
//a valid request is generated here
iResult = send(client, sendbuf.c_str(), sendbuf.length(), 0);
if(iResult == SOCKET_ERROR)
//nothing wrong with this send(), it returns the number of bytes
memset(recvbuf, 0, 512);
iResult = recv(client, recvbuf, 512, 0);
if ( iResult > 0 )
HTML += (recvbuf);
//HTML is an std::string object
else if ( iResult == 0 )
Error("Connection closed, recv done\n");
//returns 0 immediately on the second iteration of the loop
Error("recv failed with error: ");
} while( iResult > 0 );
//random processing of the code