We have three processes that work coordinately to serve the photo printing request (pictured below). When there is a request to print a photo, Process A reads the photo data from the disk to Buffer 1, Process B copies the data from Buffer 1 to Buffer 2, finally Process C takes the data
We have three processes that work coordinately to serve the photo printing request
(pictured below). When there is a request to print a photo, Process A reads the photo data from the
disk to Buffer 1, Process B copies the data from Buffer 1 to Buffer 2, finally Process C takes the data
from Buffer 2 and print it.
Process A ------------- Process B ------------ Process C
------------------------------>| Buffer 1 |-------------------------->| Buffer 2 |----------------------------->
Read from File ------------- copy ------------- print
Assume each process operates on one photo at a time, both buffers' capacity can store two photos.
Write a program (Pseudo code) to coordinate the three processes using semaphores. (Define the
semaphores to use and initialize their values)
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