bson_streaming_bson(3) on Linux
The text 264166e63ee9, as Debian 12 (Bookworm) shipped it. The page shows this text now.
Streaming BSON bson_reader_t provides a streaming reader which can be initialized with a filedescriptor or memory region. bson_writer_t provides a streaming writer which can be initialized with a memory region. (Streaming BSON to a file descriptor is not yet supported.)