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authorMasami Hiramatsu <mhiramat@redhat.com>2009-12-15 10:31:56 -0500
committerIngo Molnar <mingo@elte.hu>2009-12-15 20:22:02 +0100
commitabf5ef72477f9fb559a8a034fd6e6c397bb37e1f (patch)
tree3f69cabf0ee4d739af9421d00d15d511874b4c57 /tools
parent3e3405906dab00afecd5a16871850a088eba4626 (diff)
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: 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>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/strlist.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/tools/perf/util/strlist.h b/tools/perf/util/strlist.h
index 59091c77eef..3ba839007d2 100644
--- a/tools/perf/util/strlist.h
+++ b/tools/perf/util/strlist.h
@@ -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 */