123 lines
5.3 KiB
C++
123 lines
5.3 KiB
C++
#include <QCoreApplication>
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#include <QCommandLineParser>
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#include <QDBusConnection>
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#include <signal.h>
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#include "src/utils/logs/logging.h"
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#include "src/core/CoreService.h"
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#include "src/api/ipc_dbus/IpcDBus.h"
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void signalHandler(int signal)
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{
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LOG_INFO() << "Received signal:" << signal;
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QCoreApplication::quit();
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}
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int main(int argc, char *argv[])
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{
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// ==================================
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// 创建并配置 Qt 应用程序对象
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// ==================================
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QCoreApplication app(argc, argv);
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app.setApplicationName("soft_bus_daemon");
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app.setApplicationVersion("1.0.0");
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app.setOrganizationName("soft_bus");
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// ==================================
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// 设置 Qt 应用程序信息
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// ==================================
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QCommandLineParser parser;
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parser.setApplicationDescription(QStringLiteral("Soft Bus Daemon"));
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parser.addHelpOption();
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parser.addVersionOption();
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QCommandLineOption roleOption(QStringLiteral("role"), QStringLiteral("Daemon role (CoreRouter, CollectorSerial, CollectorCan, Collector, SqlServer)"));
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parser.addOption(roleOption);
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parser.process(app);
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const QString roleString = parser.value(roleOption).trimmed();
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CoreService::Role role = CoreService::Role::CoreRouter; // 默认角色
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if (roleString == QStringLiteral("CoreRouter")) {
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role = CoreService::Role::CoreRouter;
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} else if (roleString == QStringLiteral("CollectorSerial")) {
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role = CoreService::Role::CollectorSerial;
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} else if (roleString == QStringLiteral("CollectorCan")) {
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role = CoreService::Role::CollectorCan;
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} else if (roleString == QStringLiteral("Collector")) {
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role = CoreService::Role::Collector;
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} else if (roleString == QStringLiteral("SqlServer")) {
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role = CoreService::Role::SqlServer;
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} else {
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LOG_ERROR() << "Invalid role:" << roleString
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<< "valid roles are: CoreRouter, CollectorSerial, CollectorCan, Collector, SqlServer";
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return 1;
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}
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// ========================================================================
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// 创建并注册 D-Bus 服务（仅在 core_router 角色中启用）
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// ========================================================================
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if (role == CoreService::Role::CoreRouter) {
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// D-Bus 是 Linux 系统的进程间通信机制，允许外部客户端访问守护进程
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// I 实现了具体的 D-Bus 接口，提供状态查询、硬件操作等功能
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// 创建 DaemonService 实例，传入 CoreService 以便访问核心功能
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// 父对象设置为 app，确保在应用程序退出时自动销毁
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g_daemonService = new DaemonService(coreService, &app);
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// 连接系统 D-Bus（systemBus）而不是会话 D-Bus（sessionBus）
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// 系统 D-Bus 是系统级服务，可以在所有用户会话中访问
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// 会话 D-Bus 只能在同一用户会话中访问
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QDBusConnection connection = QDBusConnection::systemBus();
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if (!connection.isConnected()) {
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LOG_ERROR() << "Cannot connect to system D-Bus";
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LOG_ERROR() << "Please ensure D-Bus is running and proper permissions are configured";
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return 1; // 无法连接 D-Bus，守护进程无法提供服务
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}
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// 注册 D-Bus 服务名称
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// 服务名称格式：反向域名格式（如 "com.softbus.Daemon"）
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// 其他进程可以通过此名称找到守护进程
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if (!connection.registerService("com.softbus.Daemon")) {
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LOG_ERROR() << "Failed to register D-Bus service:" << connection.lastError().message();
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LOG_ERROR() << "Possible causes:";
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LOG_ERROR() << " 1. Service name already in use";
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LOG_ERROR() << " 2. Insufficient D-Bus permissions";
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LOG_ERROR() << " 3. D-Bus configuration issue";
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return 1; // 服务注册失败，无法提供 D-Bus 接口
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}
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// 注册 D-Bus 对象路径和方法
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// 对象路径："/com/softbus/Daemon" - 类似于文件系统中的路径
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// ExportAllSlots: 导出所有 public slots 作为 D-Bus 方法
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// ExportAllSignals: 导出所有 signals 作为 D-Bus 信号
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// 这样外部客户端就可以调用守护进程的方法和接收信号
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if (!connection.registerObject("/com/softbus/Daemon", g_daemonService,
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QDBusConnection::ExportAllSlots | QDBusConnection::ExportAllSignals)) {
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LOG_ERROR() << "Failed to register D-Bus object:" << connection.lastError().message();
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return 1; // 对象注册失败，D-Bus 接口无法使用
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}
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// 打印成功启动信息，便于调试和监控
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LOG_INFO() << "Soft Bus Daemon started successfully";
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LOG_INFO() << "D-Bus service: com.softbus.Daemon";
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LOG_INFO() << "D-Bus object: /com/softbus/Daemon";
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LOG_INFO() << "Ready to accept D-Bus requests";
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}
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// ==================================
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// 处理系统信号，确保在接收到 SIGINT 或 SIGTERM 时能够优雅地退出
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// ==================================
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signal(SIGINT, signalHandler);
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signal(SIGTERM, signalHandler);
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CoreService::instance()->initialize();
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CoreService::instance()->shutdown();
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int ret = app.exec();
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return ret;
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}
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