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From: Michael Roth <mdroth@linux.vnet.ibm.com>
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Message-ID: <20130708171836.32002.18544@loki>
Date: Mon, 08 Jul 2013 12:18:36 -0500
Subject: Re: [Qemu-devel] QEMU live block-migration
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To: Yaodong Yang <yyang@cse.unl.edu>
Cc: qemu-devel@nongnu.org, qemu-discuss@nongnu.org

Quoting Yaodong Yang (2013-07-08 10:57:25)
> Hello Michael,
>    Thanks for your help! =

>    I read the function of tcp_wait_for_connect(), there is a statement; "
>    qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); " I guess this wi=
ll
>    disable this file-descriptor from the main loop and make the current
>    execution parallel with the main loop. Is it correct? =


Yup

>    Also, I did not find any thread_create related function in the
>    migrate_fd_connect() function.

What version of QEMU are you looking at? For current releases you should see
the following in migrate_fd_connect():

    qemu_thread_create(&s->thread, migration_thread, s,
                       QEMU_THREAD_JOINABLE);