Writes the queue's state and contents to the given output stream in the following format:
- First ExportMetadata.sizeof bytes: Metadata header - Next size_t.sizeof bytes: Number n of bytes of queue data (possibly 0) - Next n bytes: Queue data
output stream to write to
number of bytes written to output.
See Implementation
Writes the queue's state and contents to the given output stream in the following format:
- First ExportMetadata.sizeof bytes: Metadata header - Next size_t.sizeof bytes: Number n of bytes of queue data (possibly 0) - Next n bytes: Queue data