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Commit abf5ef72 authored by Masami Hiramatsu's avatar Masami Hiramatsu Committed by Ingo Molnar
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perf tools: Add for_each macros for strlist 



Add for_each iteration macros for strlist. This patch
introduces strlist__for_each() and strlist__for_each_safe(),
both are similar to list_for_each() and list_for_each_safe().

Signed-off-by: default avatarMasami Hiramatsu <mhiramat@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20091215153156.17436.49157.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 3e340590

tools/perf/util/strlist.h

+34 −0
Original line number Diff line number Diff line
@@ -40,5 +40,39 @@ static inline unsigned int strlist__nr_entries(const struct strlist *self) 
	return self->nr_entries;

}



/* For strlist iteration */

static inline struct str_node *strlist__first(struct strlist *self)

{

	struct rb_node *rn = rb_first(&self->entries);

	return rn ? rb_entry(rn, struct str_node, rb_node) : NULL;

}

static inline struct str_node *strlist__next(struct str_node *sn)

{

	struct rb_node *rn;

	if (!sn)

		return NULL;

	rn = rb_next(&sn->rb_node);

	return rn ? rb_entry(rn, struct str_node, rb_node) : NULL;

}



/**

 * strlist_for_each      - iterate over a strlist

 * @pos:	the &struct str_node to use as a loop cursor.

 * @self:	the &struct strlist for loop.

 */

#define strlist__for_each(pos, self)	\

	for (pos = strlist__first(self); pos; pos = strlist__next(pos))



/**

 * strlist_for_each_safe - iterate over a strlist safe against removal of

 *                         str_node

 * @pos:	the &struct str_node to use as a loop cursor.

 * @n:		another &struct str_node to use as temporary storage.

 * @self:	the &struct strlist for loop.

 */

#define strlist__for_each_safe(pos, n, self)	\

	for (pos = strlist__first(self), n = strlist__next(pos); pos;\

	     pos = n, n = strlist__next(n))



int strlist__parse_list(struct strlist *self, const char *s);

#endif /* __PERF_STRLIST_H */