Add events

1 files changed, 76 insertions, 0 deletions

diff --git a/src/Events.h b/src/Events.h
new file mode 100644
index 0000000..215c5a8
--- /dev/null
+++ b/src/Events.h
@@ -0,0 +1,76 @@
+/*
+   Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012
+   Her Majesty the Queen in Right of Canada (Communications Research
+   Center Canada)
+
+   Copyright (C) 2023
+   Matthias P. Braendli, matthias.braendli@mpb.li
+
+    http://www.opendigitalradio.org
+
+   This module adds remote-control capability to some of the dabmux/dabmod modules.
+ */
+/*
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#if defined(HAVE_ZEROMQ)
+#  include "zmq.hpp"
+#endif
+
+#include <list>
+#include <unordered_map>
+#include <variant>
+#include <map>
+#include <memory>
+#include <string>
+#include <stdexcept>
+
+#include "Log.h"
+#include "Json.h"
+
+class EventSender {
+    public:
+        EventSender();
+        EventSender(const EventSender& other) = delete;
+        const EventSender& operator=(const EventSender& other) = delete;
+        EventSender(EventSender&& other) = delete;
+        EventSender& operator=(EventSender&& other) = delete;
+        ~EventSender();
+
+        void bind(const std::string& bind_endpoint);
+
+        void send(const std::string& event_name, const json::map_t& detail);
+    private:
+        zmq::context_t m_zmq_context;
+        zmq::socket_t m_socket;
+};
+
+class LogToEventSender: public LogBackend {
+    public:
+        virtual ~LogToEventSender() {};
+        virtual void log(log_level_t level, const std::string& message);
+        virtual std::string get_name() const;
+};
+
+/* events is a singleton used in all parts of the program to output log messages.
+ * It is constructed in Events.cpp */
+extern EventSender events;
+