COLLECTION Create reference to the top level collection

This patch adds ability to create a reference to the top
level collection.
Previously one could get reference only to collection
inside other collection. With this change it becomes
possible to have two pointers to the same top level
collection from multiple places.

COLLECTION Adding comment.

COLLECTION: Some tracing

1 files changed, 13 insertions, 0 deletions

diff --git a/common/collection/collection_ut.c b/common/collection/collection_ut.c
index 1e91c2326..86620550d 100644
--- a/common/collection/collection_ut.c
+++ b/common/collection/collection_ut.c
@@ -33,6 +33,7 @@ int ref_collection_test(void)
 {
     struct collection_item *peer = NULL;
     struct collection_item *socket = NULL;
+    struct collection_item *socket2 = NULL;
     char binary_dump[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 };
 
     int error = EOK;
@@ -98,7 +99,19 @@ int ref_collection_test(void)
     col_destroy_collection(peer);
 
     col_debug_collection(socket, COL_TRAVERSE_DEFAULT);
+
+    error = col_get_collection_reference(socket, &socket2, NULL);
+    if (error) {
+        col_destroy_collection(socket);
+        printf("Failed to extract collection. Error %d\n", error);
+        return error;
+    }
+
+    col_debug_collection(socket2, COL_TRAVERSE_DEFAULT);
     col_destroy_collection(socket);
+    col_debug_collection(socket2, COL_TRAVERSE_DEFAULT);
+    col_destroy_collection(socket2);
+
     TRACE_FLOW_NUMBER("ref_collection_test. Returning", error);
 
     printf("\n\nEND OF REF TEST!!!.\n\n\n");