Fix : only one iterator per context

[babeltrace.git] / lib / iterator.c

diff --git a/lib/iterator.c b/lib/iterator.c
index e50846f4cb6179a7cd2eb1ac1903f042d4da5f1e..ca6e5917e449b328f6ba0869397297b60d7e4e57 100644 (file)
--- a/lib/iterator.c
+++ b/lib/iterator.c
@@ -436,6 +436,11 @@ int bt_iter_init(struct bt_iter *iter,
        int i, stream_id;
        int ret = 0;
 
+       if (ctx->current_iterator) {
+               ret = -1;
+               goto error_ctx;
+       }
+
        iter->stream_heap = g_new(struct ptr_heap, 1);
        iter->end_pos = end_pos;
        bt_context_get(ctx);
@@ -486,12 +491,14 @@ int bt_iter_init(struct bt_iter *iter,
                }
        }
 
+       ctx->current_iterator = iter;
        return 0;
 
 error:
        heap_free(iter->stream_heap);
 error_heap_init:
        g_free(iter->stream_heap);
+error_ctx:
        return ret;
 }
 
@@ -517,6 +524,7 @@ void bt_iter_fini(struct bt_iter *iter)
                heap_free(iter->stream_heap);
                g_free(iter->stream_heap);
        }
+       iter->ctx->current_iterator = NULL;
        bt_context_put(iter->ctx);
 }