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flower_linux
2026-03-11 14:35:51 +08:00
parent fef874e0e3
commit 22ee28f33b
6 changed files with 161 additions and 49 deletions
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104
main.cpp
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@@ -1,6 +1,7 @@
#include <QCoreApplication>
#include <QCommandLineParser>
#include <QDBusConnection>
#include <QDBusError>
#include <signal.h>
#include "src/utils/logs/logging.h"
#include "src/core/CoreService.h"
@@ -30,12 +31,21 @@ int main(int argc, char *argv[])
parser.setApplicationDescription(QStringLiteral("Soft Bus Daemon"));
parser.addHelpOption();
parser.addVersionOption();
QCommandLineOption roleOption(QStringLiteral("role"), QStringLiteral("Daemon role (CoreRouter, CollectorSerial, CollectorCan, Collector, SqlServer)"));
QCommandLineOption roleOption(QStringLiteral("role"),
QStringLiteral("Daemon role (CoreRouter, CollectorSerial, CollectorCan, Collector, SqlServer)"),
QStringLiteral("role"),
QStringLiteral("CoreRouter"));
parser.addOption(roleOption);
QCommandLineOption dbusBusOption(QStringLiteral("dbus-bus"),
QStringLiteral("DBus bus to use: system|session|auto (default: auto)"),
QStringLiteral("bus"),
QStringLiteral("auto"));
parser.addOption(dbusBusOption);
parser.process(app);
const QString roleString = parser.value(roleOption).trimmed();
const QString dbusBus = parser.value(dbusBusOption).trimmed();
CoreService::Role role = CoreService::Role::CoreRouter; // 默认角色
if (roleString == QStringLiteral("CoreRouter")) {
role = CoreService::Role::CoreRouter;
@@ -53,56 +63,63 @@ int main(int argc, char *argv[])
return 1;
}
// ========================================================================
// 创建并注册 D-Bus 服务（仅在 core_router 角色中启用）
CoreService* coreService = CoreService::instance();
if (!coreService->initialize()) {
LOG_ERROR() << "CoreService initialize failed";
return 1;
}
QObject::connect(&app, &QCoreApplication::aboutToQuit, coreService, &CoreService::shutdown);
// ========================================================================
// 创建并注册 D-Bus 服务（仅在 CoreRouter 角色中启用）
// ========================================================================
if (role == CoreService::Role::CoreRouter) {
// 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
// I 实现了具体的 D-Bus 接口，提供状态查询、硬件操作等功能
// 创建 DaemonService 实例，传入 CoreService 以便访问核心功能
// 父对象设置为 app，确保在应用程序退出时自动销毁
g_daemonService = new DaemonService(coreService, &app);
// 连接系统 D-Bus（systemBus）而不是会话 D-Bus（sessionBus）
// 系统 D-Bus 是系统级服务，可以在所有用户会话中访问
// 会话 D-Bus 只能在同一用户会话中访问
QDBusConnection connection = QDBusConnection::systemBus();
const QString serviceName = QStringLiteral("com.softbus.Daemon");
const QString objectPath = QStringLiteral("/com/softbus/Daemon");
IpcDBus* ipc = new IpcDBus(coreService, roleString, &app);
auto pickConnection = [&]() -> QDBusConnection {
if (dbusBus == QStringLiteral("system")) {
return QDBusConnection::systemBus();
}
if (dbusBus == QStringLiteral("session")) {
return QDBusConnection::sessionBus();
}
// auto: 优先 system（更符合 daemon），失败则退回 session（方便本地开发）
QDBusConnection conn = QDBusConnection::systemBus();
if (conn.isConnected()) {
return conn;
}
return QDBusConnection::sessionBus();
};
QDBusConnection connection = pickConnection();
if (!connection.isConnected()) {
LOG_ERROR() << "Cannot connect to system D-Bus";
LOG_ERROR() << "Please ensure D-Bus is running and proper permissions are configured";
return 1; // 无法连接 D-Bus，守护进程无法提供服务
LOG_ERROR() << "Cannot connect to D-Bus. system error="
<< QDBusConnection::systemBus().lastError().message()
<< " session error=" << QDBusConnection::sessionBus().lastError().message();
return 1;
}
// 注册 D-Bus 服务名称
// 服务名称格式：反向域名格式（如 "com.softbus.Daemon"）
// 其他进程可以通过此名称找到守护进程
if (!connection.registerService("com.softbus.Daemon")) {
LOG_ERROR() << "Failed to register D-Bus service:" << connection.lastError().message();
LOG_ERROR() << "Possible causes:";
LOG_ERROR() << " 1. Service name already in use";
LOG_ERROR() << " 2. Insufficient D-Bus permissions";
LOG_ERROR() << " 3. D-Bus configuration issue";
return 1; // 服务注册失败，无法提供 D-Bus 接口
if (!connection.registerService(serviceName)) {
LOG_ERROR() << "Failed to register D-Bus service:" << serviceName
<< "error=" << connection.lastError().message();
return 1;
}
// 注册 D-Bus 对象路径和方法
// 对象路径："/com/softbus/Daemon" - 类似于文件系统中的路径
// ExportAllSlots: 导出所有 public slots 作为 D-Bus 方法
// ExportAllSignals: 导出所有 signals 作为 D-Bus 信号
// 这样外部客户端就可以调用守护进程的方法和接收信号
if (!connection.registerObject("/com/softbus/Daemon", g_daemonService,
QDBusConnection::ExportAllSlots | QDBusConnection::ExportAllSignals)) {
LOG_ERROR() << "Failed to register D-Bus object:" << connection.lastError().message();
return 1; // 对象注册失败，D-Bus 接口无法使用
if (!connection.registerObject(objectPath,
ipc,
QDBusConnection::ExportAllSlots | QDBusConnection::ExportAllSignals)) {
LOG_ERROR() << "Failed to register D-Bus object:" << objectPath
<< "error=" << connection.lastError().message();
return 1;
}
// 打印成功启动信息，便于调试和监控
LOG_INFO() << "Soft Bus Daemon started successfully";
LOG_INFO() << "D-Bus service: com.softbus.Daemon";
LOG_INFO() << "D-Bus object: /com/softbus/Daemon";
LOG_INFO() << "Ready to accept D-Bus requests";
LOG_INFO() << "D-Bus ready. bus="
<< (connection.name() == QDBusConnection::systemBus().name() ? "system" : "session")
<< " service=" << serviceName
<< " object=" << objectPath;
}
@@ -114,9 +131,6 @@ int main(int argc, char *argv[])
signal(SIGINT, signalHandler);
signal(SIGTERM, signalHandler);
CoreService::instance()->initialize();
CoreService::instance()->shutdown();
int ret = app.exec();
return ret;
}