some header files to be R5 compatible

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1617 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-10-23 13:54:44 +00:00
parent 16fe4511e7
commit d734a8ce5a
39 changed files with 4652 additions and 0 deletions
@@ -0,0 +1,73 @@
+/******************************************************************************
+/
+/	File:			BufferIO.h
+/
+/	Description:	A buffered adapter for BPositionIO
+/
+/	Copyright 1998, Be Incorporated
+/
+******************************************************************************/
+
+#if !defined(_BUFFER_IO_H)
+#define _BUFFER_IO_H
+
+#include <DataIO.h>
+
+class BBufferIO : public BPositionIO
+{
+public:
+	enum {
+		DEFAULT_BUF_SIZE = 65536L
+	};
+
+		BBufferIO(
+				BPositionIO * stream,
+				size_t buf_size = DEFAULT_BUF_SIZE,
+				bool owns_stream = true);
+virtual		~BBufferIO();
+
+virtual		ssize_t ReadAt(
+				off_t pos, 
+				void *buffer, 
+				size_t size);
+virtual		ssize_t WriteAt(
+				off_t pos, 
+				const void *buffer, 
+				size_t size);
+virtual		off_t Seek(
+				off_t position, 
+				uint32 seek_mode);
+virtual		off_t Position() const;
+virtual		status_t SetSize(
+				off_t size);
+virtual		status_t Flush();
+		BPositionIO * Stream() const;
+		size_t BufferSize() const;
+		bool OwnsStream() const;
+		void SetOwnsStream(
+				bool owns_stream);
+
+		void PrintToStream() const;
+
+private:
+
+		off_t m_buffer_start;
+		BPositionIO * m_stream;
+		char * m_buffer;
+		size_t m_buffer_phys;
+		size_t m_buffer_used;
+		uint32 _reserved_ints[6];
+		bool m_buffer_dirty;
+		bool m_owns_stream;
+		bool _reserved_bools[6];
+
+virtual		status_t _Reserved_BufferIO_0(void *);
+virtual		status_t _Reserved_BufferIO_1(void *);
+virtual		status_t _Reserved_BufferIO_2(void *);
+virtual		status_t _Reserved_BufferIO_3(void *);
+virtual		status_t _Reserved_BufferIO_4(void *);
+
+};
+
+
+#endif /* _BUFFER_IO_H */