CS140 Midterm Winter 2005 Initials 1. (10 points) In class I talked about how semaphores can be used to control the scheduling of a set of threads. The example I gave had three threads (T1,T2,T3) working together to compute print(ffx,y)) float x, y, z; sem Sx = 0, Sy = 0, Sz = 0; T1) T2 ) T3) P (Sz); print (z); P(Sx); P (Sy); z = f(x,y); V(Sz); V (Sx); V (Sy) Recode the above code using monitors rather than semaphores. Show the code for routines T10, T20, and T3) that use monitors to get the same functionality. Do not simply emulate semaphores with monitors CS140 Midterm Winter 2005 Initials 1. (10 points) In class I talked about how semaphores can be used to control the scheduling of a set of threads. The example I gave had three threads (T1,T2,T3) working together to compute print(ffx,y)) float x, y, z; sem Sx = 0, Sy = 0, Sz = 0; T1) T2 ) T3) P (Sz); print (z); P(Sx); P (Sy); z = f(x,y); V(Sz); V (Sx); V (Sy) Recode the above code using monitors rather than semaphores. Show the code for routines T10, T20, and T3) that use monitors to get the same functionality. Do not simply emulate semaphores with monitors