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// SPDX-License-Identifier: Apache-2.0
/*
* Copyright (C) 2023,2024 Konsulko Group
*/
#include <thread>
#include <chrono>
#include <glib.h>
#include <glib-unix.h>
#include "RadioImpl.h"
GMainLoop *main_loop = NULL;
RadioImpl *g_service = NULL;
static gboolean quit_cb(gpointer user_data)
{
g_info("Quitting...");
if (main_loop)
g_idle_add(G_SOURCE_FUNC(g_main_loop_quit), main_loop);
else
exit(0);
return G_SOURCE_REMOVE;
}
void RunGrpcServer(std::shared_ptr<Server> &server)
{
// Start server and wait for shutdown
server->Wait();
}
int main(int argc, char *argv[])
{
main_loop = g_main_loop_new(NULL, FALSE);
grpc::EnableDefaultHealthCheckService(true);
grpc::reflection::InitProtoReflectionServerBuilderPlugin();
ServerBuilder builder;
// Load settings from configuration file if it exists
std::string bind_address = "localhost";
GKeyFile *conf_file = g_key_file_new();
if(conf_file &&
g_key_file_load_from_dirs(conf_file,
"AGL.conf",
(const gchar**) g_get_system_config_dirs(),
NULL,
G_KEY_FILE_KEEP_COMMENTS,
NULL) == TRUE) {
// Set band plan if it is specified
gchar *value_str = g_key_file_get_string(conf_file,
"radio",
"bind",
NULL);
if(value_str) {
bind_address = value_str;
}
}
g_key_file_free(conf_file);
// Listen on the given address without any authentication mechanism (for now)
std::string server_address(bind_address + ":50053");
builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());
// Register "service" as the instance through which we'll communicate with
// clients. In this case it corresponds to a *synchronous* service.
RadioImpl *service = new RadioImpl();
if (!service->Detect()) {
exit(1);
}
builder.RegisterService(service);
// Finally assemble the server.
std::shared_ptr<Server> server(builder.BuildAndStart());
if (!server) {
exit(1);
}
std::cout << "Server listening on " << server_address << std::endl;
g_unix_signal_add(SIGTERM, quit_cb, (gpointer) &server);
g_unix_signal_add(SIGINT, quit_cb, (gpointer) &server);
// Start gRPC API server on its own thread
std::thread grpc_thread(RunGrpcServer, std::ref(server));
g_main_loop_run(main_loop);
// Service implementation may have threads blocked from client streaming
// RPCs, make sure those exit.
service->Shutdown();
// Need to set a deadline to avoid blocking on clients doing streaming
// RPC reads
server->Shutdown(std::chrono::system_clock::now() + std::chrono::milliseconds(500));
grpc_thread.join();
g_main_loop_unref(main_loop);
return 0;
}
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