linux-kernel - Re: [PATCH v6 1/2] tools lib traceevent: factor out allocating and processing args

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Date:	Fri, 27 Feb 2015 10:38:41 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Javi Merino <javi.merino@....com>
Cc:	acme@...hat.com, jolsa@...hat.com, linux-kernel@...r.kernel.org,
	Namhyung Kim <namhyung@...nel.org>
Subject: Re: [PATCH v6 1/2] tools lib traceevent: factor out allocating and
 processing args

On Fri, 27 Feb 2015 14:48:14 +0000
Javi Merino <javi.merino@....com> wrote:

  
> +static int alloc_and_process_arg(struct event_format *event, char *next_token,
> +				 struct print_arg **print_arg)
> +{
> +	struct print_arg *field;
> +	enum event_type type;
> +	char *token;
> +	int ret = 0;
> +
> +	field = alloc_arg();
> +	if (!field) {
> +		do_warning_event(event, "%s: not enough memory!", __func__);
> +		errno = ENOMEM;
> +		return -1;
> +	}
> +
> +	type = process_arg(event, field, &token);
> +
> +	if (test_type_token(type, token, EVENT_DELIM, next_token)) {

I wonder if we should call this "alloc_and_process_delim()", as this
isn't a generic arg, but only used for deliminators.

-- Steve

> +		errno = EINVAL;
> +		ret = -1;
> +		free_arg(field);
> +		goto out_free_token;
> +	}
> +
> +	*print_arg = field;
> +
> +out_free_token:
> +	free_token(token);
> +
> +	return ret;
> +}
> +
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