Rework to switch to using KUKSA.val databroker

Rework to use the "VAL" gRPC API from the KUKSA.val databroker
instead of the older server's WebSocket interface.  Some source
files have been renamed to match the class naming to provide
a bit more consistency.

Bug-AGL: SPEC-4762

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: Ib1ec31af439a9b2d5244e2232ea7be1ed9a2574c

1 files changed, 39 insertions, 21 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 6bb165f..2cce0e7 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,34 +1,52 @@
-// SPDX-License-Identifier: Apache-2.0
+/*
+ * Copyright (C) 2022,2023 Konsulko Group
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
-#include <iostream>
-#include <iomanip>
-#include <boost/asio/signal_set.hpp>
-#include <boost/bind.hpp>
-#include "hvac-service.hpp"
+#include <glib.h>
+#include <glib-unix.h>
+#include <systemd/sd-daemon.h>
 
-using work_guard_type = boost::asio::executor_work_guard<boost::asio::io_context::executor_type>;
+#include "HvacService.h"
+
+static gboolean quit_cb(gpointer user_data)
+{
+	GMainLoop *loop = (GMainLoop*) user_data;
+
+	g_info("Quitting...");
+
+	if (loop)
+		g_idle_add(G_SOURCE_FUNC(g_main_loop_quit), loop);
+	else
+		exit(0);
+
+	return G_SOURCE_REMOVE;
+}
 
 int main(int argc, char** argv)
 {
-	// The io_context is required for all I/O
-	net::io_context ioc;
+	GMainLoop *loop = NULL;
+
+	loop = g_main_loop_new(NULL, FALSE);
+	if (!loop) {
+		std::cerr << "Could not create GLib event loop" << std::endl;
+		exit(1);
+	}
+
+	KuksaConfig config("agl-service-hvac");
 
-	// Register to stop I/O context on SIGINT and SIGTERM
-	net::signal_set signals(ioc, SIGINT, SIGTERM);
-	signals.async_wait(boost::bind(&net::io_context::stop, &ioc));
+	g_unix_signal_add(SIGTERM, quit_cb, (gpointer) loop);
+	g_unix_signal_add(SIGINT, quit_cb, (gpointer) loop);
 
-	// The SSL context is required, and holds certificates
-	ssl::context ctx{ssl::context::tlsv12_client};
+	HvacService service(config, loop);
 
-	// Launch the asynchronous operation
-	VisConfig config("agl-service-hvac");
-	std::make_shared<HvacService>(config, ioc, ctx)->run();
+	sd_notify(0, "READY=1");
 
-	// Ensure I/O context continues running even if there's no work
-	work_guard_type work_guard(ioc.get_executor());
+	g_main_loop_run(loop);
 
-	// Run the I/O context
-	ioc.run();
+	// Clean up
+	g_main_loop_unref(loop);
 
 	return 0;
 }