Add events

1 files changed, 87 insertions, 0 deletions

diff --git a/src/Events.cpp b/src/Events.cpp
new file mode 100644
index 0000000..d65b73a
--- /dev/null
+++ b/src/Events.cpp
@@ -0,0 +1,87 @@
+/*
+   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 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/>.
+ */
+#include <list>
+#include <string>
+#include <iostream>
+#include <sstream>
+#include <iomanip>
+#include <string>
+#include <algorithm>
+
+#include "Events.h"
+
+EventSender events;
+
+EventSender::EventSender() :
+    m_zmq_context(1),
+    m_socket(m_zmq_context, zmq::socket_type::pub)
+{
+    int linger = 2000;
+    m_socket.setsockopt(ZMQ_LINGER, &linger, sizeof(linger));
+}
+
+EventSender::~EventSender()
+{ }
+
+void EventSender::bind(const std::string& bind_endpoint)
+{
+    m_socket.bind(bind_endpoint);
+}
+
+void EventSender::send(const std::string& event_name, const json::map_t& detail)
+{
+    zmq::message_t zmsg1(event_name.data(), event_name.size());
+    const auto detail_json = json::map_to_json(detail);
+    zmq::message_t zmsg2(detail_json.data(), detail_json.size());
+
+    try {
+        m_socket.send(zmsg1, zmq::send_flags::sndmore);
+        m_socket.send(zmsg2, zmq::send_flags::none);
+    }
+    catch (const zmq::error_t& err) {
+        fprintf(stderr, "Cannot send event %s: %s", event_name.c_str(), err.what());
+    }
+}
+
+
+void LogToEventSender::log(log_level_t level, const std::string& message)
+{
+    std::string event_name;
+    if (level == log_level_t::warn) { event_name = "warn"; }
+    else if (level == log_level_t::error) { event_name = "error"; }
+    else if (level == log_level_t::alert) { event_name = "alert"; }
+    else if (level == log_level_t::emerg) { event_name = "emerg"; }
+
+    if (not event_name.empty()) {
+        json::map_t detail;
+        detail["message"].v = message;
+        events.send(event_name, detail);
+    }
+}
+
+std::string LogToEventSender::get_name() const
+{
+    return "EventSender";
+}