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https://git.kernel.org/pub/scm/network/wireless/iwd.git
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155 lines
3.2 KiB
C
155 lines
3.2 KiB
C
/*
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*
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* Ethernet daemon for Linux
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*
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* Copyright (C) 2017-2019 Intel Corporation. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <signal.h>
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#include <ell/ell.h>
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#include "wired/dbus.h"
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static struct l_dbus *dbus = NULL;
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struct l_dbus *dbus_app_get(void)
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{
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return dbus;
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}
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struct dbus_info {
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const struct dbus_app *app;
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void *user_data;
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};
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void dbus_app_shutdown_complete(void)
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{
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l_main_quit();
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}
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static void dbus_shutdown(struct dbus_info *info)
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{
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static bool terminated = false;
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if (!terminated) {
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terminated = true;
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if (info->app->shutdown)
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info->app->shutdown(dbus, info->user_data);
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else
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l_main_quit();
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}
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}
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static void request_name_callback(struct l_dbus *dbus, bool success,
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bool queued, void *user_data)
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{
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struct dbus_info *info = user_data;
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if (!success) {
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l_error("Failed to request D-Bus service Name");
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l_main_quit();
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return;
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}
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if (!l_dbus_object_manager_enable(dbus, "/"))
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l_warn("Unable to register ObjectManager interface");
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if (info->app->ready)
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info->app->ready(dbus, info->user_data);
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}
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static void dbus_ready(void *user_data)
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{
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struct dbus_info *info = user_data;
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if (info->app->name) {
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l_dbus_name_acquire(dbus, info->app->name, false, false, true,
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request_name_callback, info);
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return;
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}
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if (info->app->ready)
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info->app->ready(dbus, info->user_data);
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}
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static void dbus_disconnected(void *user_data)
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{
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struct dbus_info *info = user_data;
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l_info("D-Bus disconnected");
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dbus_shutdown(info);
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}
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static void dbus_signal_handler(uint32_t signo, void *user_data)
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{
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struct dbus_info *info = user_data;
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switch (signo) {
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case SIGINT:
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case SIGTERM:
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l_info("Termination signal");
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dbus_shutdown(info);
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break;
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}
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}
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int dbus_app_run(const struct dbus_app *app, void *user_data,
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dbus_app_destroy_func_t destroy)
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{
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struct dbus_info *info;
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int exit_status;
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if (dbus || !app)
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return EXIT_FAILURE;
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if (!l_main_init())
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return EXIT_FAILURE;
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dbus = l_dbus_new_default(app->bus);
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if (!dbus) {
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l_error("Failed to initialize D-Bus");
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return EXIT_FAILURE;
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}
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info = l_new(struct dbus_info, 1);
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info->app = app;
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info->user_data = user_data;
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l_dbus_set_ready_handler(dbus, dbus_ready, info, NULL);
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l_dbus_set_disconnect_handler(dbus, dbus_disconnected, info, NULL);
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exit_status = l_main_run_with_signal(dbus_signal_handler, info);
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l_dbus_destroy(dbus);
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dbus = NULL;
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l_main_exit();
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if (destroy)
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destroy(info->user_data);
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l_free(info);
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return exit_status;
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}
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