Operating systems concepts programming assignment 2

Programming project #2 (Concurrency and the I/O subsystem) (User - DOIO Device driver - Disk)

I have attached the HW3 programming solution. It is the same as before where you will have to explain the program. .Explain the following lines of code and how the program will work and run.

binarysem mutex1; binarysem mutex2; binarysem mutex3; binarysem mutex4; binarysem mutex5; binarysem control; binarysem print; semaphore full1; semaphore full2; semaphore full3; semaphore full4; semaphore full5; semaphore sio; semaphore request_served[5]; semaphore rpend1; semaphore rpend2; semaphore PIO1; semaphore PIO2; semaphore operation_complete; semaphore operationcomplete2; const int BSIZE=1; const int IORQAB=5; const int IORQIB=3; //arrays int bufid[1]; int bufaddr[1]; int bufdev[1]; int iorqid[3]; int iorqaddr[5]; int iorqid2[3]; int iorqaddr2[5]; int pio[1]; int pio2[1]; int ctl=25; const int loop=25; const int uloop=5; void user(int id) { int i; int j=0; int uid; int uaddr; int dev; for(i=0;i