BByteStream Class Reference
[Data Model]

#include <support/ByteStream.h>

Inheritance diagram for BByteStream:

List of all members.

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Detailed Description

Byte streams on top of an IStorage.

Implements IByteInput, IByteOutput, and IByteSeekable on top of a random access IStorage interface.

Public Member Functions
	BByteStream (const sptr< IStorage > &store)
virtual SValue	Inspect (const sptr< IBinder > &caller, const SValue &which, uint32_t flags=0)
	Probe binder for interface information.
virtual off_t	Position () const
	Return the current location in the stream, or a negative error code.
virtual ssize_t	ReadV (const struct iovec *vector, ssize_t count, uint32_t flags=0)
virtual off_t	Seek (off_t position, uint32_t seek_mode)
	Move to a new location in the stream.
virtual status_t	Sync ()
	Make sure all data in the stream is written to its physical device.
virtual ssize_t	WriteV (const struct iovec *vector, ssize_t count, uint32_t flags=0)
Protected Member Functions
	BByteStream (IStorage *This)
virtual	~BByteStream ()

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Constructor & Destructor Documentation

BByteStream (  const sptr< IStorage > &  store  )

BByteStream (  IStorage *  This  )  [protected]

~BByteStream (   )  [protected, virtual]

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Member Function Documentation

SValue Inspect (  const sptr< IBinder > &  caller, const SValue &  which, uint32_t  flags = 0 )  [virtual]

Probe binder for interface information. Return interfaces implemented by this binder object that are requested by which. This is a composition of all interfaces, expressed as { descriptor -> binder } mappings, which are selected through which. Much more information on Inspect() can be found at Binder Inspect() Details. Reimplemented from BnInterface< IByteOutput >. Reimplemented in BMemoryStore.

off_t Position (   )  const [virtual]

Return the current location in the stream, or a negative error code. Implements IByteSeekable.

ssize_t ReadV (  const struct iovec *  vector, ssize_t  count, uint32_t  flags = 0 )  [virtual]

off_t Seek (  off_t  position, uint32_t  seek_mode )  [virtual]

Move to a new location in the stream. The seek_mode can be either SEEK_SET, SEEK_END, or SEEK_CUR. Returns the new location, or a negative error code. Implements IByteSeekable.

status_t Sync (   )  [virtual]

Make sure all data in the stream is written to its physical device. Returns B_OK if the data is safely stored away, else an error code. Implements IByteOutput. Reimplemented in BMemoryStore, and BValueStorage.

ssize_t WriteV (  const struct iovec *  vector, ssize_t  count, uint32_t  flags = 0 )  [virtual]

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The documentation for this class was generated from the following files:

• ByteStream.h
• ByteStream.cpp

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Generated on Wed Dec 28 22:33:29 2005 by Doxygen 1.4.4 for OpenBinder Documentation Version 1.0

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