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Date: Fri, 14 Feb 2014 13:31:22 +0100
From: Stefan Hajnoczi <stefanha@gmail.com>
Message-ID: <20140214123122.GC17391@stefanha-thinkpad.redhat.com>
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Subject: Re: [Qemu-devel] [PATCH 0/3] glib: move compat functions into
 glib-compat.h
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To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org, Anthony Liguori <aliguori@amazon.com>

On Mon, Feb 03, 2014 at 02:31:47PM +0100, Stefan Hajnoczi wrote:
> glib has deprecated APIs like GStaticMutex, g_thread_create(), and others.  In
> QEMU support both old and new APIs since using deprecated APIs would flood us
> with warnings but legacy distros must continue to build the QEMU source code.
> 
> This patch series reduces ifdefs by moving glib compat functions into
> glib-compat.h, where they can be reused.
> 
> There are two strategies for compat functions:
> 
> 1. Implement the new API using the deprecated API.  This compat function is
>    used when building on a legacy host.  Sometimes the API semantics are so
>    different that this option is not feasible.
> 
> 2. Add a new wrapper API that maps to the deprecated API.  The wrapper is not
>    marked deprecated so it works as a drop-in replacement but is implemented
>    using the new API where possible.
> 
> Stefan Hajnoczi (3):
>   glib: move g_poll() replacement into glib-compat.h
>   glib: add g_thread_new() compat function
>   glib: add compat wrapper for GStaticMutex
> 
>  coroutine-gthread.c   | 26 ++++++++++----------------
>  include/glib-compat.h | 44 ++++++++++++++++++++++++++++++++++++++++++++
>  include/qemu-common.h | 12 ------------
>  trace/simple.c        | 31 ++++++++++---------------------
>  4 files changed, 64 insertions(+), 49 deletions(-)

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