NAME

       mongoc_gridfs_file_readv()  -  This function performs a scattered read from file, potentially blocking to
       read from the MongoDB server.

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.  Use  mongoc_gridfs_file_error  to  retrieve  error
       details.

COLOPHON

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

MongoDB C Driver                                   2016‐01‐18                        MONGOC_GRIDFS_FILE_READV(3)