MONGOC_GRIDFS_FILE_READV(3)

NAME
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
    A uint32_t with the timeout in milliseconds.

DESCRIPTION
This function performs a scattered read from file , potentially blocking to read from the MongoDB server. Timeout should be the number of milliseconds to allow blocking, or 0 to disallow blocking.

RETURNS
Returns the number of bytes read, or -1 on failure and errno is set.

COLOPHON
This page is part of MongoDB C Driver. Please report any bugs at https://jira.mongodb.org/browse/CDRIVER.