1MONGOC_GRIDFS_FILE_READV(3) MongoDB C Driver MONGOC_GRIDFS_FILE_READV(3)
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6 mongoc_gridfs_file_readv - mongoc_gridfs_file_readv()
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9 ssize_t
10 mongoc_gridfs_file_readv (mongoc_gridfs_file_t *file,
11 mongoc_iovec_t *iov,
12 size_t iovcnt,
13 size_t min_bytes,
14 uint32_t timeout_msec);
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17 · file: A mongoc_gridfs_file_t.
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19 · iov: An array of mongoc_iovec_t.
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21 · iovcnt: The number of elements in iov.
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23 · min_bytes: The minimum number of bytes that must be read or an error
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26 · timeout_msec: Unused.
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29 This function performs a scattered read from file, potentially blocking
30 to read from the MongoDB server.
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32 The timeout_msec parameter is unused.
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35 Returns the number of bytes read, or -1 on failure. Use mon‐
36 goc_gridfs_file_error to retrieve error details.
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39 MongoDB, Inc
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42 2017-present, MongoDB, Inc
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471.13.1 Jan 24, 2019 MONGOC_GRIDFS_FILE_READV(3)