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perf tools: Add for_each macros for strlist

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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: Masami 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: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Masami Hiramatsu 2009-12-15 10:31:56 -05:00 committed by Ingo Molnar
parent 3e3405906d
commit abf5ef7247
1 changed files with 34 additions and 0 deletions
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34
tools/perf/util/strlist.h
View file

@ -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 */