From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Masami Hiramatsu <mhiramat@redhat.com>,
akpm@linux-foundation.org, Ingo Molnar <mingo@elte.hu>,
mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org,
randy.dunlap@oracle.com, wcohen@redhat.com, fweisbec@gmail.com,
tglx@linutronix.de, jbaron@redhat.com,
linux-tip-commits@vger.kernel.org, Christoph Hellwig <hch@lst.de>
Subject: Re: trace/events: DECLARE vs DEFINE semantic
Date: Wed, 2 Dec 2009 17:57:36 -0500 [thread overview]
Message-ID: <20091202225736.GA14770@Krystal> (raw)
In-Reply-To: <1259794005.12870.102.camel@gandalf.stny.rr.com>
* Steven Rostedt (rostedt@goodmis.org) wrote:
> On Wed, 2009-12-02 at 17:36 -0500, Masami Hiramatsu wrote:
>
> > > Or do you (or anyone else) have a better name?
> >
> > How about renaming DEFINE_EVENT to TRACE_EVENT_CLASS?
> >
> > DECLARE_EVENT_CLASS(y, ...) declare an event-class y
> > TRACE_EVENT_CLASS(x, y, ...) define/declare a trace event x from event-class y
> > TRACE_EVENT(x, ...) define/declare a trace event x
> >
> > Thus TRACE_EVENT_* implies that this macro will be expanded
> > to both of definition and declaration.
> > I don't think separating it is good idea from the viewpoint
> > of maintaining code.
>
> Hmm, what about just:
>
> TRACE_CLASS - Declares a class
> TRACE_CLASS_EVENT - defines an event for said class
> TRACE_EVENT - Declares a class and defines an event (as is today)
Yep, it looks good! It's self-descriptive and don't require to explain
what the thing is doing each time we refer to it. (however I feel a bit
sad for Fred, Wilma and Barney) ;)
For that semantic, you have my
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Thanks,
Mathieu
>
> -- Steve
>
>
--
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
next prev parent reply other threads:[~2009-12-02 23:02 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-01 17:18 [PATCH v2] tracing: add DEFINE_EVENT(), DEFINE_SINGLE_EVENT() support to docbook Jason Baron
2009-12-01 17:20 ` Randy Dunlap
2009-12-02 10:42 ` [tip:perf/core] tracing: Add " tip-bot for Jason Baron
2009-12-02 13:52 ` Steven Rostedt
2009-12-02 14:01 ` Ingo Molnar
2009-12-02 14:28 ` Steven Rostedt
2009-12-02 14:43 ` Ingo Molnar
2009-12-02 14:55 ` Steven Rostedt
2009-12-02 16:15 ` Randy Dunlap
2009-12-02 16:27 ` Mathieu Desnoyers
2009-12-02 17:11 ` Steven Rostedt
2009-12-02 18:06 ` Mathieu Desnoyers
2009-12-02 18:19 ` Steven Rostedt
2009-12-02 19:01 ` trace/events: DECLARE vs DEFINE semantic Mathieu Desnoyers
2009-12-02 19:19 ` Steven Rostedt
2009-12-02 19:34 ` Randy Dunlap
2009-12-02 22:36 ` Masami Hiramatsu
2009-12-02 22:46 ` Steven Rostedt
2009-12-02 22:57 ` Mathieu Desnoyers [this message]
2009-12-02 23:08 ` H. Peter Anvin
2009-12-02 23:13 ` Steven Rostedt
2009-12-02 23:18 ` H. Peter Anvin
2009-12-02 23:15 ` Mathieu Desnoyers
2009-12-03 3:24 ` Masami Hiramatsu
2009-12-02 23:10 ` Mathieu Desnoyers
2009-12-03 4:00 ` Masami Hiramatsu
2009-12-03 4:07 ` Steven Rostedt
2009-12-03 13:51 ` Masami Hiramatsu
2009-12-03 13:54 ` Steven Rostedt
2009-12-03 14:09 ` Mathieu Desnoyers
2009-12-03 14:24 ` Steven Rostedt
2009-12-03 14:42 ` Mathieu Desnoyers
2009-12-03 15:31 ` Masami Hiramatsu
2009-12-03 15:56 ` Steven Rostedt
2009-12-03 16:11 ` Masami Hiramatsu
2009-12-02 20:11 ` [PATCH][tip/perf/core] tracing: Rename TRACE_EVENT and others to something resonable Steven Rostedt
2009-12-02 20:16 ` Frederic Weisbecker
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