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iris-legacy/cutestuff/util/bytestream.h

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+/*
+ * bytestream.h - base class for bytestreams
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef CS_BYTESTREAM_H
+#define CS_BYTESTREAM_H
+
+#include <qobject.h>
+#include <q3cstring.h>
+
+// CS_NAMESPACE_BEGIN
+
+// CS_EXPORT_BEGIN
+class ByteStream : public QObject
+{
+	Q_OBJECT
+public:
+	enum Error { ErrRead, ErrWrite, ErrCustom = 10 };
+	ByteStream(QObject *parent=0);
+	virtual ~ByteStream()=0;
+
+	virtual bool isOpen() const;
+	virtual void close();
+	virtual void write(const QByteArray &);
+	virtual QByteArray read(int bytes=0);
+	virtual int bytesAvailable() const;
+	virtual int bytesToWrite() const;
+
+	void write(const Q3CString &);
+
+	static void appendArray(QByteArray *a, const QByteArray &b);
+	static QByteArray takeArray(QByteArray *from, int size=0, bool del=true);
+
+signals:
+	void connectionClosed();
+	void delayedCloseFinished();
+	void readyRead();
+	void bytesWritten(int);
+	void error(int);
+
+protected:
+	void clearReadBuffer();
+	void clearWriteBuffer();
+	void appendRead(const QByteArray &);
+	void appendWrite(const QByteArray &);
+	QByteArray takeRead(int size=0, bool del=true);
+	QByteArray takeWrite(int size=0, bool del=true);
+	QByteArray & readBuf();
+	QByteArray & writeBuf();
+	virtual int tryWrite();
+
+private:
+//! \if _hide_doc_
+	class Private;
+	Private *d;
+//! \endif
+};
+// CS_EXPORT_END
+
+// CS_NAMESPACE_END
+
+#endif