Bugs item #2785173, was opened at 2009-05-01 19:42 Message generated for change (Comment added) made by bagder You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=703942&aid=2785173&group_id=125852
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: API Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Nobody/Anonymous (nobody) >Assigned to: Daniel Stenberg (bagder) Summary: channel_read returns LIBSSH2_ERROR_EAGAIN, no data on socket Initial Comment: While using libssh2_channel_read_ex(), I found that when the last of the data has been read, the libssh2_channel_read_ex() may return LIBSSH2_ERROR_EAGAIN, but a poll() on the socket times out (eventually). I diagnosed this as packets (channel eof and channel close) in memory, but not processed, so libssh2_channel_eof() remains false. Root caused as a "single shot" call to _libssh2_transport_read() in channel_read(). No call to _libssh2_transport_read() should be made unless the caller continues to call the function until it returns a non-positive value (0 or negative). This will prevent it from leaving unprocessed buffers in memory. ---------------------------------------------------------------------- >Comment By: Daniel Stenberg (bagder) Date: 2009-05-01 20:19 Message: This explanation is not clear to me. If the reason for the LIBSSH2_ERROR_EAGAIN is a "single shot" call to _libssh2_transport_read() in channel_read() then didn't that transport function return EAGAIN? If so, what good would adding a loop do? Or perhaps put in another way: can you please provide a patch showing what you suggest? ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=703942&aid=2785173&group_id=125852 ------------------------------------------------------------------------------ Register Now & Save for Velocity, the Web Performance & Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance & Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf _______________________________________________ libssh2-devel mailing list libssh2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libssh2-devel
