Provided by: libmongoc-doc_2.2.1-1_all 

SYNOPSIS
ssize_t
mongoc_gridfs_file_writev (mongoc_gridfs_file_t *file,
const mongoc_iovec_t *iov,
size_t iovcnt,
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.
• timeout_msec: Unused.
DESCRIPTION
Performs a gathered write to the underlying gridfs file.
The timeout_msec parameter is unused.
Modifying GridFS files is NOT thread-safe. Only one thread or process can access a GridFS file while it
is being modified.
RETURNS
Returns the number of bytes written, or -1 on failure. Use mongoc_gridfs_file_error() <> to retrieve
error details.
Author
MongoDB, Inc
Copyright
2009-present, MongoDB, Inc.
2.2.1 Dec 11, 2025 MONGOC_GRIDFS_FILE_WRITEV(3)