mongoc_gridfs_file_readv - Man Page
mongoc_gridfs_file_readv()
Synopsis
ssize_t mongoc_gridfs_file_readv (mongoc_gridfs_file_t *file, mongoc_iovec_t *iov, size_t iovcnt, size_t min_bytes, uint32_t timeout_msec);
Parameters
- file: A mongoc_gridfs_file_t.
- iov: An array of mongoc_iovec_t.
- iovcnt: The number of elements in iov.
- min_bytes: The minimum number of bytes that must be read or an error will be synthesized.
- timeout_msec: Unused.
Description
This function performs a scattered read from file, potentially blocking to read from the MongoDB server.
The timeout_msec parameter is unused.
Returns
Returns the number of bytes read, or -1 on failure. Use mongoc_gridfs_file_error() to retrieve error details.
Author
MongoDB, Inc
Copyright
2017-present, MongoDB, Inc
Info
Sep 06, 2023 1.24.4 libmongoc