Wayne Feick wrote:
> Our server has one background thread constantly calling SSL_read()
> to drain incoming data. There are multiple threads generating outgoing
> data but all the SSL_write() calls are serialized with a semaphore.
> All I/O is blocking.
I'm not sure how you could make this work. If all I/O is blocking, the call to
SSL_read will block until data is available. If a thread generating outgoing
data wants to call SSL_write, how can it do so since the reader thread will
hold the sempahore?
You do realize that you cannot concurrently call SSL_read and SSL_write on the
same SSL connection. You can concurrently call SSL_write on distinct SSL
connections.
Also, OpenSSL will renegotiate automatically.
BIO_set_ssl_renegotiate_bytes() sets the renegotiate byte
count to num. When set after every num bytes of I/O (read
and write) the SSL session is automatically renegotiated.
num must be at least 512 bytes.
BIO_set_ssl_renegotiate_timeout() sets the renegotiate
timeout to seconds. When the renegotiate timeout elapses
the session is automatically renegotiated.
DS
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