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
2009-present, MongoDB, Inc.