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AndroidCoderPeng
SerialPortDebugger
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SerialPortManager.hpp
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SerialPortManager.hpp
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#ifndef SERIALPORTMANAGER_HPP
#define SERIALPORTMANAGER_HPP
#include <QObject>
#include <QString>
class QThread;
class SerialPortWorker;
// 适用于跨线程串口管理,提供线程安全的接口,内部使用互斥锁保护串口资源,注意和SerialPortObserver区分
class SerialPortManager : public QObject {
Q_OBJECT
public:
explicit SerialPortManager(QObject *parent = nullptr);
~SerialPortManager() override;
static inline SerialPortManager *get() {
static SerialPortManager instance;
return &instance;
}
void open(const QString &portName, qint32 baudRate,
const QString &dataBits = "", const QString &parity = "",
const QString &stopBits = "", const QString &flowControl = "");
void write(const QByteArray &data);
void close();
bool isOpen() const;
// 不能让 UI 层跳过 Manager 直接连 Worker。
// 正确的做法是 Manager 暴露自己的信号,在 slot 里 re-emit。
// 虽然看起来像是"把 Worker 的信号再写一遍",但这是合理的外观模式,只为换取:
// 1.UI 层不知道 Worker 的存在(解耦)
// 2.Manager 可以在转发前做额外处理(日志、过滤、缓冲)
// 3.未来换掉 Worker 实现时,UI 完全不受影响
signals:
void dataReceivedSignal(const QByteArray &data);
void stateChangedSignal(bool opened);
void errorOccurredSignal(const QString &message);
private slots:
void dataReceivedSlot(const QByteArray &data);
void stateChangedSlot(bool opened);
void errorOccurredSlot(const QString &message);
private:
QThread *ioThreadPtr;
SerialPortWorker *workerPtr;
};
#endif // SERIALPORTMANAGER_HPP
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