A stream buffer that uses a dynamic buffer for its implementation.

A stream of this type is used by RBufWriteStream and RBufReadStream objects. It also has intermediate buffering capabilities.

This is a seekable stream buffer.

There are three write modes:

insert mode - inserts new data into the buffer at the offset passed to Set()

overwrite mode - replaces the data in the buffer starting at the offset passed to Set(). Once the end of the buffer is reached, it is automatically extended as more data is written. This is the default mode.

truncate mode - truncates the buffer to the offset passed to Set() before data is written, extending the buffer. When writing, the buffer size as reported by CBufBase::Size() may be larger than the data written to the stream. To synchronise the buffer's reported size with the stream, call the MStreamBuf::SynchL() function.

Note that this object never takes ownership of the dynamic buffer, the CBufBase type object.

RBufWriteStream

RBufReadStream

CBufBase::Size()

MStreamBuf::SynchL()