SoW-2019-0002: Dynamic Snapshot

[lttng-tools.git] / src / common / actions / notify.c

diff --git a/src/common/actions/notify.c b/src/common/actions/notify.c
new file mode 100644 (file)
index 0000000..03dcce7
--- /dev/null
+++ b/src/common/actions/notify.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#include <lttng/action/action-internal.h>
+#include <lttng/action/notify-internal.h>
+#include <common/macros.h>
+#include <assert.h>
+
+static
+void lttng_action_notify_destroy(struct lttng_action *action)
+{
+       free(action);
+}
+
+static
+int lttng_action_notify_serialize(struct lttng_action *action,
+               struct lttng_dynamic_buffer *buf)
+{
+       return 0;
+}
+
+static
+bool lttng_action_notify_is_equal(const struct lttng_action *a,
+               const struct lttng_action *b)
+{
+       /* TODO check type ??? */
+       return true;
+}
+
+struct lttng_action *lttng_action_notify_create(void)
+{
+       struct lttng_action_notify *notify;
+
+       notify = zmalloc(sizeof(struct lttng_action_notify));
+       if (!notify) {
+               goto end;
+       }
+
+       lttng_action_init(&notify->parent, LTTNG_ACTION_TYPE_NOTIFY, NULL,
+                       lttng_action_notify_serialize,
+                       lttng_action_notify_is_equal,
+                       lttng_action_notify_destroy);
+end:
+       return &notify->parent;
+}
+
+ssize_t lttng_action_notify_create_from_buffer(
+               const struct lttng_buffer_view *view,
+               struct lttng_action **action)
+{
+       ssize_t consumed_length;
+
+       *action = lttng_action_notify_create();
+       if (!*action) {
+               consumed_length = -1;
+               goto end;
+       }
+
+       consumed_length = 0;
+end:
+       return consumed_length;
+}