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// Copyright (C) 2015-2017 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
#include <unistd.h>
#include <thread>
#include <condition_variable>
#include <mutex>
#include <iostream>
#include <vsomeip/vsomeip.hpp>
#include <vsomeip/internal/logger.hpp>
#ifdef USE_DLT
#ifndef ANDROID
#include <dlt/dlt.h>
#endif
#endif
static std::shared_ptr<vsomeip::application> its_application;
#ifndef VSOMEIP_ENABLE_SIGNAL_HANDLING
static vsomeip::routing_state_e routing_state = vsomeip::routing_state_e::RS_RUNNING;
static bool stop_application = false;
static bool stop_sighandler = false;
static std::condition_variable_any sighandler_condition;
static std::recursive_mutex sighandler_mutex;
#endif
#ifndef VSOMEIP_ENABLE_SIGNAL_HANDLING
/*
* Handle signal to stop the daemon
*/
void routingmanagerd_stop(int _signal) {
// Do not log messages in signal handler as this can cause deadlock in boost logger
switch (_signal) {
case SIGINT:
case SIGTERM:
stop_application = true;
break;
case SIGUSR1:
routing_state = vsomeip::routing_state_e::RS_SUSPENDED;
break;
case SIGUSR2:
routing_state = vsomeip::routing_state_e::RS_RESUMED;
break;
default:
;
};
std::unique_lock<std::recursive_mutex> its_lock(sighandler_mutex);
sighandler_condition.notify_one();
}
#endif
/*
* Create a vsomeip application object and start it.
*/
int routingmanagerd_process(bool _is_quiet) {
#ifdef USE_DLT
#ifndef ANDROID
if (!_is_quiet)
DLT_REGISTER_APP(VSOMEIP_LOG_DEFAULT_APPLICATION_ID, VSOMEIP_LOG_DEFAULT_APPLICATION_NAME);
#endif
#else
(void)_is_quiet;
#endif
std::shared_ptr<vsomeip::runtime> its_runtime
= vsomeip::runtime::get();
if (!its_runtime) {
return -1;
}
// Create the application object
its_application = its_runtime->create_application("routingmanagerd");
#ifndef VSOMEIP_ENABLE_SIGNAL_HANDLING
std::thread sighandler_thread([]() {
// Unblock signals for this thread only
sigset_t handler_mask;
sigemptyset(&handler_mask);
sigaddset(&handler_mask, SIGUSR1);
sigaddset(&handler_mask, SIGUSR2);
sigaddset(&handler_mask, SIGTERM);
sigaddset(&handler_mask, SIGINT);
sigaddset(&handler_mask, SIGSEGV);
sigaddset(&handler_mask, SIGABRT);
pthread_sigmask(SIG_UNBLOCK, &handler_mask, NULL);
// Handle the following signals
signal(SIGINT, routingmanagerd_stop);
signal(SIGTERM, routingmanagerd_stop);
signal(SIGUSR1, routingmanagerd_stop);
signal(SIGUSR2, routingmanagerd_stop);
while (!stop_sighandler) {
std::unique_lock<std::recursive_mutex> its_lock(sighandler_mutex);
sighandler_condition.wait(its_lock);
if (stop_application) {
its_application->stop();
return;
} else if (routing_state == vsomeip::routing_state_e::RS_RESUMED ||
routing_state == vsomeip::routing_state_e::RS_SUSPENDED){
VSOMEIP_INFO << "Received signal for setting routing_state to: 0x"
<< std::hex << static_cast<int>(routing_state );
its_application->set_routing_state(routing_state);
}
}
});
#endif
if (its_application->init()) {
if (its_application->is_routing()) {
its_application->start();
#ifndef VSOMEIP_ENABLE_SIGNAL_HANDLING
sighandler_thread.join();
#endif
return 0;
}
VSOMEIP_ERROR << "routingmanagerd has not been configured as routing - abort";
}
#ifndef VSOMEIP_ENABLE_SIGNAL_HANDLING
std::unique_lock<std::recursive_mutex> its_lock(sighandler_mutex);
stop_sighandler = true;
sighandler_condition.notify_one();
sighandler_thread.join();
#endif
return -1;
}
/*
* Parse command line options
* -h | --help print usage information
* -d | --daemonize start background processing by forking the process
* -q | --quiet do _not_ use dlt logging
*
* and start processing.
*/
int main(int argc, char **argv) {
#ifndef VSOMEIP_ENABLE_SIGNAL_HANDLING
// Block all signals
sigset_t mask;
sigfillset(&mask);
sigprocmask(SIG_SETMASK, &mask, NULL);
#endif
bool must_daemonize(false);
bool is_quiet(false);
if (argc > 1) {
for (int i = 0; i < argc; i++) {
std::string its_argument(argv[i]);
if (its_argument == "-d" || its_argument == "--daemonize") {
must_daemonize = true;
} else if (its_argument == "-q" || its_argument == "--quiet") {
is_quiet = true;
} else if (its_argument == "-h" || its_argument == "--help") {
std::cout << "usage: "
<< argv[0] << " [-h|--help][-d|--daemonize][-q|--quiet]"
<< std::endl;
return 0;
}
}
}
/* Fork the process if processing shall be done in the background */
if (must_daemonize) {
pid_t its_process, its_signature;
its_process = fork();
if (its_process < 0) {
return EXIT_FAILURE;
}
if (its_process > 0) {
return EXIT_SUCCESS;
}
umask(0111);
its_signature = setsid();
if (its_signature < 0) {
return EXIT_FAILURE;
}
}
return routingmanagerd_process(is_quiet);
}
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