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Re: [Qemu-devel] [PATCH v4 0/7] trace: Generic event state description

From: Lluís Vilanova
Subject: Re: [Qemu-devel] [PATCH v4 0/7] trace: Generic event state description
Date: Mon, 11 Jun 2012 14:12:12 +0300
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.1.50 (gnu/linux)

Stefan Hajnoczi writes:

> On Tue, May 8, 2012 at 3:38 PM, Lluís Vilanova <address@hidden> wrote:
>> Provides a generic event state description and a more detailed event control 
>> and
>> query interface.
>> Signed-off-by: Lluís Vilanova <address@hidden>
>> ---
> What is the point of sstate vs dstate?  It seems the dynamic state is
> what can be toggled and sstate is the "disable" keyword.  Why have
> sstate since there is already a macro?

'sstate' is there just in case you query the tracing state of an event through
the 'TraceEvent' structure instead of through the corresponding macro.


 "And it's much the same thing with knowledge, for whenever you learn
 something new, the whole world becomes that much richer."
 -- The Princess of Pure Reason, as told by Norton Juster in The Phantom

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