Consider the following multi$-$threaded pseudocode.lock$($&mutex$)$; cond$\_$wait$($&cv$,$ &mutex$)$;data $=$ queue.pop$()$;$\}$void add$($void$*$ data$)\{$cond$\_$signal$($&cv$)$;unlock$($&mutex$)$;

$\}$Select all lines that contain a bug. If two lines must be swapped, select both lines.

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No bugs