Detailed Description

Outline

Purpose
Classes
Description

Purpose

Provide blob implementing the streambuf interface.

Classes

bdlbb::InBlobStreamBuf: bdlbb::Blob input streambuf
bdlbb::OutBlobStreamBuf: bdlbb::Blob output streambuf

See also: bdlbb_blob

Description

This component implements the input and output bsl::basic_streambuf protocol using a user-supplied bdlbb::Blob. Method names necessarily correspond to the protocol-specified method names. Refer to the C++ Standard, Section 27.5.2, for a full specification of the interface.

A bdlbb::Blob is an indexed sequence of bdlbb::BlobBuffer of potentially different sizes. The number of buffers in the sequence can increase or decrease, but the order of the buffers cannot change. Therefore, the blob behaves logically as a single indexed buffer. bdlbb::InBlobStreamBuf and bdlbb::OutBlobStreamBuf can therefore respectively read from and write to this buffer as if there were a single continuous index.