X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fctf2-trace-class-visitor.hpp;fp=src%2Fbin%2Flttng-sessiond%2Fctf2-trace-class-visitor.hpp;h=0d28961236bcb661027cfc186933c0cafc828711;hb=da9dd5212ebacf388ebe26aa80fd0ddcf7ffe049;hp=0000000000000000000000000000000000000000;hpb=45110cdd99bd9ecc13a12d29afde3fffa48b4641;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/ctf2-trace-class-visitor.hpp b/src/bin/lttng-sessiond/ctf2-trace-class-visitor.hpp
new file mode 100644
index 000000000..0d2896123
--- /dev/null
+++ b/src/bin/lttng-sessiond/ctf2-trace-class-visitor.hpp
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2022 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#ifndef LTTNG_CTF2_TRACE_CLASS_VISITOR_H
+#define LTTNG_CTF2_TRACE_CLASS_VISITOR_H
+
+#include "trace-class.hpp"
+#include "stream-class.hpp"
+#include "event-class.hpp"
+
+#include <vendor/optional.hpp>
+#include <vendor/nlohmann/json.hpp>
+
+#include <functional>
+
+namespace lttng {
+namespace sessiond {
+namespace ctf2 {
+
+using append_metadata_fragment_function = std::function<void(const std::string& fragment)>;
+
+class trace_class_visitor : public lttng::sessiond::trace::trace_class_visitor {
+public:
+	trace_class_visitor(const lttng::sessiond::trace::abi& trace_abi,
+			append_metadata_fragment_function append_metadata);
+
+	virtual void visit(const lttng::sessiond::trace::trace_class& trace_class) override final;
+	virtual void visit(const lttng::sessiond::trace::clock_class& clock_class) override final;
+	virtual void visit(const lttng::sessiond::trace::stream_class& stream_class) override final;
+	virtual void visit(const lttng::sessiond::trace::event_class& event_class) override final;
+
+private:
+	void append_metadata_fragment(const nlohmann::json& fragment) const;
+
+	const lttng::sessiond::trace::abi& _trace_abi;
+	const append_metadata_fragment_function _append_metadata_fragment;
+};
+
+} /* namespace ctf2 */
+} /* namespace sessiond */
+} /* namespace lttng */
+
+#endif /* LTTNG_CTF2_TRACE_CLASS_VISITOR_H */