bson_reader_read_func_t - Man Page

typedef ssize_t (*bson_reader_read_func_t) (void *handle,
                                            void *buf,
                                            size_t count);

• handle: The handle to read from.
• buf: The buffer to read into.
• count: The number of bytes to read.

A callback function that will be called by bson_reader_t <> to read the next chunk of data from the underlying opaque file descriptor.

This function is meant to operate similar to the read(2) function as part of libc on UNIX-like systems.

0 for end of stream.

-1 for a failure on read.

A value greater than zero for the number of bytes read into buf.

MongoDB, Inc

2009-present, MongoDB, Inc.