> Oh I see, I used wrong function. All I want is to know if I have > in buffer some another data to read. In final step I want to have > client that have e.g. 10 connections to several servers. I want > to guard with function select() the file descriptors. And when > select() awakes my thread i want to read the server massage. But > when I`m reading, it might be possibly, that another server send > data. So I want to scan buffers for all conection, if there are > another data to read. I thought that this is possible with the > function BIO_pending()
You are trying to make bricks without straw. If you want non-blocking behavior, you must use non-blocking sockets and non-blocking socket operations. In that case, OpenSSL will tell you what it needs in order to make further progress, and you can retry an operation when something changges. > So now I have another Question. Is there any function that says > me if there are another data in buffer to read. Or I must try to > read from all connections before I use the select() function again?? You are thinking about this completely backwards. You should only refuse to try further operations until 'select' tells you to if you *know* that what is needed is data to be received from the peer. Otherwise, you should assume the operation will succeed. So call SSL_read and if it returns 'WANT_READ', don't try calling SSL_read again until something changes (such as data being received on the socket or a subsuent SSL_write succeeding). But if it returns success, by all means call SSL_read again. Immediately if you want. DS ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
