Hi everybody,
I'm writing an application that creates multiple non-blocking SSL connections
to an https server, in each one I send a request and
read the server's response. my problem is, whatever I do, I can't
determine when the response data is finished. here's part of my code
responsible for sending and receiving data:
....fd_set connectionfds;structtimeval
timeout2;FD_ZERO(&connectionfds);FD_SET(socket_server,&connectionfds);timeout2.tv_usec
=0;timeout2.tv_sec =1;while(1){r=BIO_read(io,buf,BUFSIZZ-1);if(r>0){//gather
datacontinue;}elseif(SSL_get_error(ssl,r)==SSL_ERROR_WANT_READ){intret
=select(socket_server +1,&connectionfds,NULL,NULL,&timeout2);if(ret
<=0){break;}continue;}else{break;}}// use whole gathered data....
my problem with above code is, if I set select timeout to a small
time, I can't guarantee that all data is received (because some servers
are really slow), and if I set timeout to a long time (5-10 seconds), my socket
is getting stucked in wait-state for a long time and I can't use the response
before that.
I tried to make this work by using "BIO_should_read()" or
"BIO_pending()" functions, but none of them is giving me what I want.
so, Is there a way to determine when exactly there is nothing else to
read on the SSL socket?
Thank you.
