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33 #ifndef VIRTUALSERIALPORT_H
34 #define VIRTUALSERIALPORT_H
36 #include <QtCore/QIODevice>
37 #include <QtCore/QString>
38 #include <QtCore/QMutex>
44 #include "symbianutils_global.h"
46 namespace SymbianUtils {
48 class VirtualSerialDevicePrivate;
50 class SYMBIANUTILS_EXPORT VirtualSerialDevice : public QIODevice
54 explicit VirtualSerialDevice(const QString &name, QObject *parent = 0);
55 ~VirtualSerialDevice();
57 bool open(OpenMode mode);
59 const QString &getPortName() const;
62 qint64 bytesAvailable() const;
63 bool isSequential() const;
64 bool waitForBytesWritten(int msecs);
65 bool waitForReadyRead(int msecs);
68 qint64 readData(char *data, qint64 maxSize);
69 qint64 writeData(const char *data, qint64 maxSize);
72 Q_DISABLE_COPY(VirtualSerialDevice)
75 void emitBytesWrittenIfNeeded(QMutexLocker &locker, qint64 len);
80 QList<QByteArray> pendingWrites;
81 bool emittingBytesWritten;
82 QWaitCondition* waiterForBytesWritten;
83 VirtualSerialDevicePrivate *d;
85 // Platform-specific stuff
88 qint64 writeNextBuffer(QMutexLocker &locker);
89 void doWriteCompleted(QMutexLocker &locker);
91 void writeCompleted();
92 void commEventOccurred();
97 bool tryWrite(const char *data, qint64 maxSize, qint64 &bytesWritten);
98 enum FlushPendingOption {
100 StopAfterWritingOneBuffer = 1,
101 EmitBytesWrittenAsync = 2, // Needed so we don't emit bytesWritten signal directly from writeBytes
103 Q_DECLARE_FLAGS(FlushPendingOptions, FlushPendingOption)
104 bool tryFlushPendingBuffers(QMutexLocker& locker, FlushPendingOptions flags = NothingSpecial);
107 void writeHasUnblocked(int fileHandle);
110 void AsyncCall_emitBytesWrittenIfNeeded(qint64 len);
116 } // namespace SymbianUtils
118 #endif // VIRTUALSERIALPORT_H