Re: libssh2_sftp_init() blocks and does not return

On Thu, 19 Mar 2009, Daniel Stenberg wrote:

> In general it is painful to support both the way the code works now. I
> wonder if we can think of a better way...

Would it be completely crazy if we did all the internals of libssh2 to deal
with non-blocking only, and "only" provide wrapper code that deals with the
blockingness this way:

(pseudo code for how it'd work for blocking sockets)

  API-function ()
  {
    set_nonblocking()
    do {
      rc = useinternal_function()
      if (rc) {
        wait_for_socket_action();
      }
    } while (rc == EAGAIN);
    set_blocking()
    return rc;
  }

The upside will be that only these upper layer functions would need to bother
about blockiness, and all the "core" functionality would always assume and use
non-blocking.

We would also gain some control and be able to for example allow flexible
time-outs etc even for the blocking API.

-- 
  / daniel.haxx.se
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