source: psi/trunk/src/tools/openpgp/gpgproc/qpipe.h

#ifndef QPIPE_H
#define QPIPE_H

#include<qstring.h>
#include<qcstring.h>

#ifdef Q_WS_WIN
#include<windows.h>
typedef HANDLE QPipeId;
#else
typedef int QPipeId;
#endif

class QPipeEnd
{
public:
        enum { Read, Write };
        QPipeEnd();
        ~QPipeEnd();

        bool isOpen() const;
        const QPipeId & id() const;
        void setId(const QPipeId &);

        void close();
        void release();

        QString toString() const;

        int write(const QByteArray &);
        QByteArray readAll(bool *done=0);

#ifdef Q_WS_WIN
        bool winDupHandle();
#else
        bool setBlock(bool b);
#endif

private:
        QPipeId p;

        void reset();
};

class QPipe
{
public:
        QPipe();
        ~QPipe();

        void closeReadEnd();
        void closeWriteEnd();

        int write(const QByteArray &);
        QByteArray readAll(bool *done=0);

        QPipeEnd & readEnd() { return i; }
        QPipeEnd & writeEnd() { return o; }

        bool open();
        void close();
        void release();

private:
        QPipeEnd i, o;
};

#endif