Hello, everyone ! I'm using openssl as client in blocking mode , i have a problem . Sometimes my program can't receive data , and acctually server has been sent the data to me. I can only receive the data by sending another request . Then the data i expected arrived with a new data sent by server .
Below is my code ------------------------------------------------------------------------------ bool can_read() { struct timeval tv = {0 , 100}; FD_ZERO(&m_rfds); FD_SET(m_socket.fd(), &m_rfds); int ret = select( m_socket.fd()+1, &m_rfds , NULL, NULL, &tv); return ret > 0 ; } //this is the main process int try_receive(char * buf , int len ) { if( !can_read()) return -1; return SSL_read(m_ssl, buf, len); } ------------------------------------------------------------------------------- I'd really appreciate if you could tell me what's wrong with this code .