1BSON_READER_READ_FUNC_T(3)          libbson         BSON_READER_READ_FUNC_T(3)
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NAME

6       bson_reader_read_func_t - bson_reader_read_func_t
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SYNOPSIS

9          typedef ssize_t (*bson_reader_read_func_t) (void *handle,
10                                                      void *buf,
11                                                      size_t count);
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PARAMETERS

14       · handle: The handle to read from.
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16       · buf: The buffer to read into.
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18       · count: The number of bytes to read.
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DESCRIPTION

21       A  callback  function  that will be called by bson_reader_t to read the
22       next chunk of data from the underlying opaque file descriptor.
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24       This function is meant to operate similar to the  read(2)  function  as
25       part of libc on UNIX-like systems.
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RETURNS

28       0 for end of stream.
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30       -1 for a failure on read.
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32       A value greater than zero for the number of bytes read into buf.
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AUTHOR

35       MongoDB, Inc
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38       2017-present, MongoDB, Inc
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431.16.2                           Feb 25, 2020       BSON_READER_READ_FUNC_T(3)
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