+ pfd = uta_ring_getpfd( r ); // get pollable file descriptor
+ if( pfd < 0 ) {
+ fprintf( stderr, "<FAIL> expected a pollable file descriptor >= 0, but got: %d\n", pfd );
+ errors++;
+ }
+
+ pfd = uta_ring_config( r, 0x03 ); // turn on locking for reads and writes
+ if( pfd != 1 ) {
+ fprintf( stderr, "<FAIL> config attempt to enable locking failed\n" );
+ errors++;
+ }
+
+