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39
40#ifndef QIOPIPE_P_H
41#define QIOPIPE_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtCore/qiodevice.h>
55#include <QtCore/qbytearray.h>
56#include <QtCore/private/qiodevice_p.h>
57
58QT_BEGIN_NAMESPACE
59
60class QObject;
61class QIOPipePrivate;
62
63class QIOPipe : public QIODevice
64{
65 Q_OBJECT
66
67public:
68 enum Mode {
69 EndPipe = 0x0000,
70 ProxyPipe = 0x0001
71 };
72
73 explicit QIOPipe(QIODevice *parent, Mode mode = EndPipe);
74 ~QIOPipe() override;
75
76 bool open(OpenMode openMode) override;
77 bool isSequential() const override;
78 void setReadChannelCount(int count);
79 void addChildPipe(QIOPipe *childPipe);
80
81protected:
82 qint64 readData(char *data, qint64 maxlen) override;
83 qint64 writeData(const char *data, qint64 len) override;
84
85private:
86 Q_DECLARE_PRIVATE(QIOPipe)
87 Q_DISABLE_COPY(QIOPipe)
88};
89
90class QIOPipePrivate : public QIODevicePrivate
91{
92 Q_DECLARE_PUBLIC(QIOPipe)
93
94public:
95 explicit QIOPipePrivate(QIODevice *iodevice, bool proxying);
96 ~QIOPipePrivate() override;
97
98 void initialize();
99 bool readAvailableData();
100 void pumpData(const QByteArray &ba);
101 void pushData(const QByteArray &ba);
102 void _q_onReadyRead();
103 void addChildPipe(QIOPipe *childPipe);
104 void removeChildPipe(QIOPipe *childPipe);
105
106 bool m_proxying = false;
107 QPointer<QIODevice> source;
108 QVector<QPointer<QIOPipe>> childPipes;
109};
110
111#endif // QIOPIPE_P_H
112
113QT_END_NAMESPACE
114

source code of qtlocation/src/plugins/position/serialnmea/qiopipe_p.h