OutputStream.h.svn-base
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上传日期:2018-11-18
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外挂编程
开发平台:
Windows_Unix
- /*
- * OpenKore C++ Standard Library
- * Copyright (C) 2006 VCL
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301 USA
- */
- #ifndef _OSL_OUTPUT_STREAM_H_
- #define _OSL_OUTPUT_STREAM_H_
- #include "../Object.h"
- #include "IOException.h"
- namespace OSL {
- /**
- * An abstract base class for all output stream classes.
- *
- * An output stream is a stream to which data can be written. Where
- * the data will eventually end up depends on the concrete subclass.
- *
- * @note
- * This abstract class does not guarantee thread-safety. Thread-safety
- * dependent on the concrete subclass. Though you can use
- * createThreadSafe() to create a thread-safe wrapper around the
- * current class.
- *
- * @class OutputStream OSL/IO/OutputStream.h
- * @ingroup IO
- */
- class OutputStream: public Object {
- public:
- /**
- * Flush and close this stream. If the stream has already
- * been closed, then this method does nothing.
- */
- virtual void close() = 0;
- /**
- * Flush this stream and force any buffered data
- * to be written to the underlying device.
- *
- * @throws IOException
- */
- virtual void flush() throw(IOException) = 0;
- /**
- * Write data into the stream.
- *
- * This data may not be immediately written to the underlying
- * device, as it may be buffered. Calling flush() will ensure
- * that the data is written to the underlying device.
- *
- * @param data The data to write.
- * @param size The number of bytes in data.
- * @return The number of bytes written.
- * @pre data != NULL
- * @pre size > 0
- * @throws IOException
- */
- virtual unsigned int write(const char *data, unsigned int size) throw(IOException) = 0;
- /**
- * Create a thread-safe wrapper around this OutputStream.
- *
- * @post
- * The current OutputStream's reference will be increased by 1,
- * and the return value will have a reference count of 1.
- * @post
- * result != NULL
- *
- * @note
- * The return value holds a reference to the current OutputStream.
- * When the return value is deleted, the current OutputStream will be
- * dereferenced. So make sure the current OutputStream is not deleted
- * manually before the return value is deleted. It's recommended that
- * you use Object::ref() and Object::unref() instead of @c new and
- * @c delete.
- */
- virtual OutputStream *createThreadSafe() throw();
- };
- }
- #endif /* _OSL_OUTPUT_STREAM_H_ */