Support multiple chart label keys in data queries (#10483)

2 files changed, 10 insertions, 0 deletions

diff --git a/libnetdata/simple_pattern/simple_pattern.c b/libnetdata/simple_pattern/simple_pattern.c
index 44fa42a629..70b06a22bc 100644
--- a/libnetdata/simple_pattern/simple_pattern.c
+++ b/libnetdata/simple_pattern/simple_pattern.c
@@ -354,3 +354,12 @@ char *simple_pattern_trim_around_equal(char *src) {
 
     return store;
 }
+
+char *simple_pattern_iterate(SIMPLE_PATTERN **p)
+{
+    struct simple_pattern *root = (struct simple_pattern *) *p;
+    struct simple_pattern **Proot = (struct simple_pattern **)p;
+
+    (*Proot) = (*Proot)->next;
+    return (char *) root->match;
+}
diff --git a/libnetdata/simple_pattern/simple_pattern.h b/libnetdata/simple_pattern/simple_pattern.h
index ec6b535879..36fbbde7df 100644
--- a/libnetdata/simple_pattern/simple_pattern.h
+++ b/libnetdata/simple_pattern/simple_pattern.h
@@ -32,6 +32,7 @@ extern void simple_pattern_free(SIMPLE_PATTERN *list);
 
 extern void simple_pattern_dump(uint64_t debug_type, SIMPLE_PATTERN *p) ;
 extern int simple_pattern_is_potential_name(SIMPLE_PATTERN *p) ;
+extern char *simple_pattern_iterate(SIMPLE_PATTERN **p);
 
 //Auxiliary function to create a pattern
 char *simple_pattern_trim_around_equal(char *src);