RE: SSL_read returns SSL_ERROR_WANT_READ

[David Schwartz]

> I’m having a problem with SSL_read. When SSL_read fails and returns
> SSL_ERROR_WANT_READ I do select checking for readability but I
> never get a
> hit and if I try SSL_read again I get the same error. Does anyone
> know what
> to do?

        That sounds like there is just nothing to read.

> I’m using different threads for receiving and sending. Isn’t that
> the thing
> do, to check for readability with select when I get
> SSL_ERROR_WANT_READ and
> then when hit try SSL_read again?

        Yes, that is correct. Make sure that you protect the SSL session with a
mutex. You are not allowed to call SSL_read and SSL_write at the same time
on the same session from different threads.

        DS


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