From: Hamish Coleman <hamish@zot.org>
Date: Fri, 17 Feb 2017 07:51:35 +0000 (+0800)
Subject: Add a helper to count the size of an iterator
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=7950f924afbd902b506bbaedfc5f7f1bce6eacc9;p=liboping.git

Add a helper to count the size of an iterator
---

diff --git a/src/liboping.c b/src/liboping.c
index fc9ed65..7af4e4a 100644
--- a/src/liboping.c
+++ b/src/liboping.c
@@ -1722,6 +1722,20 @@ pingobj_iter_t *ping_iterator_next (pingobj_iter_t *iter)
 	return ((pingobj_iter_t *) iter->next);
 }
 
+int ping_iterator_count (pingobj_t *obj)
+{
+	if (obj == NULL)
+		return 0;
+
+        int count = 0;
+        pingobj_iter_t *iter = obj->head;
+        while(iter) {
+            count++;
+            iter = iter->next;
+        }
+        return count;
+}
+
 int ping_iterator_get_info (pingobj_iter_t *iter, int info,
 		void *buffer, size_t *buffer_len)
 {
diff --git a/src/oping.h b/src/oping.h
index 1970ef2..50d11fb 100644
--- a/src/oping.h
+++ b/src/oping.h
@@ -75,6 +75,7 @@ int ping_host_remove (pingobj_t *obj, const char *host);
 
 pingobj_iter_t *ping_iterator_get (pingobj_t *obj);
 pingobj_iter_t *ping_iterator_next (pingobj_iter_t *iter);
+int ping_iterator_count (pingobj_t *obj);
 
 #define PING_INFO_HOSTNAME  1
 #define PING_INFO_ADDRESS   2