Cloud Storage Client - Class ReadStream (1.31.2)

Reference documentation and code samples for the Cloud Storage Client class ReadStream.

A Stream implementation that wraps a GuzzleHttp download stream to provide getSize() from the response headers.

Create a new ReadStream.

Return the full size of the buffer. If the underlying stream does not report it's size, try to fetch the size from the Content-Length response header.

Read bytes from the underlying buffer, retrying until we have read enough bytes or we cannot read any more. We do this because the internal C code for filling a buffer does not account for when we try to read large chunks from a user-land stream that does not return enough bytes.