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Re: [Qemu-devel] [Qemu-block] [PATCH v3 00/13] main-loop: Get rid of fd_

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [Qemu-block] [PATCH v3 00/13] main-loop: Get rid of fd_read_poll and qemu_set_fd_handler2
Date: Wed, 20 May 2015 08:26:31 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0

On 19/05/2015 17:02, Stefan Hajnoczi wrote:
> 1. Convert everything like you converted qemu-nbd.c.  This is a 
> conservative approach and we can be confident that behavior is 
> unchanged.

So, that means whenever you change receive_disabled you call a new
callback on the peer?  In addition, whenever the count of
receive-disabled ports switches from zero to non-zero or vice versa,
hubs need to inform all its ports.

There are just two places that set/clear receive_disabled,
qemu_deliver_packet and qemu_flush_or_purge_queued_packets, but I
think a new API is needed to implement the callback for hubs


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