Needs to be in C with pthread_mutex_signal

with pthread function

Question 2 The question is about concurrent programming. (a) Consider a concurrent system with three processes P1, P2 and P3 // Process P1 void P1(void) { Statement A 7/Process P2 void P2(void) { Statement B } 1/Process P3 void P3(void) { Statement } } Provide a (semaphore based) solution to synchronize P1, P2 and P3 such that the following constraints on execution order is satisfied: Statement B before Statement A. Statement A before Statement C Provide a possible (deadlock free) trace of your solution. 17 marks)