Function svn_io_file_write_full 

pub unsafe extern "C" fn svn_io_file_write_full(
    file: *mut apr_file_t,
    buf: *const c_void,
    nbytes: apr_size_t,
    bytes_written: *mut apr_size_t,
    pool: *mut apr_pool_t,
) -> *mut svn_error_t

Wrapper for apr_file_write_full().