[Qemu-devel] 答复: [PATCH v2 06/43] Return path: socket_writev_buffer: Block even on non-blocking fd's

[chenliang (T)]

From: "Dr. David Alan Gilbert" <address@hidden>

The return path uses a non-blocking fd so as not to block waiting for the 
(possibly broken) destination to finish returning a message, however we still 
want outbound data to behave in the same way and block.

Signed-off-by: Dr. David Alan Gilbert <address@hidden>

Hi David
  It is confusing why don't use blocking fd?
Best regards