SoW-2020-0003: Trace Hit Counters

[lttng-tools.git] / include / lttng / action / incr-value-internal.h

diff --git a/include/lttng/action/incr-value-internal.h b/include/lttng/action/incr-value-internal.h
new file mode 100644 (file)
index 0000000..c98105e
--- /dev/null
+++ b/include/lttng/action/incr-value-internal.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2020 Francis Deslauriers <francis.deslauriers@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#ifndef LTTNG_ACTION_INCR_VALUE_INTERNAL_H
+#define LTTNG_ACTION_INCR_VALUE_INTERNAL_H
+
+#include <inttypes.h>
+
+#include <common/macros.h>
+
+struct lttng_action;
+struct lttng_payload_view;
+struct lttng_map_key;
+
+/*
+ * Create a "incr-value" action from a payload view.
+ *
+ * On success, return the number of bytes consumed from `view`, and the created
+ * action in `*action`. On failure, return -1.
+ */
+LTTNG_HIDDEN
+extern ssize_t lttng_action_incr_value_create_from_payload(
+               struct lttng_payload_view *view,
+               struct lttng_action **action);
+
+LTTNG_HIDDEN
+enum lttng_action_status lttng_action_incr_value_borrow_key_mutable(
+               const struct lttng_action *action, struct lttng_map_key **key);
+
+LTTNG_HIDDEN
+enum lttng_action_status lttng_action_incr_value_set_tracer_token(
+               struct lttng_action *action, uint64_t token);
+
+LTTNG_HIDDEN
+uint64_t lttng_action_incr_value_get_tracer_token(
+               const struct lttng_action *action);
+
+#endif /* LTTNG_ACTION_INCR_VALUE_INTERNAL_H */