Question $2$:

In this question we will expand the question to a calculation using two programs

The input and output format will be the same as that of question $1,$ but this time there will be two programs, one will read the input $($in the format of question $(1)$ and write it to the shared memory. The shared memory size is $--2048$ and a second program $($the client$)$ will read the data and calculate the operations and print them to the screen.

Requirements:

$1.$ The program should create shared memory to store the matrices. The shared memory can be implemented using the functions shmdtshmet', 'shmat or any other way $2.$ The server process should create the matrices in the shared memory read from the user.

$($in the format you determine for yourself$)$ The server process should write the data to the shared memory in a synchronized manner and in any method

$3$ you choose $-$ use semaphores or mutex locks for synchronization. $4.$ The program needs to handle several matrices in the shared memory. and variable size. It can be assumed

which are squares.

$5.$ The server will exit and delete the shared memory when the user presses END, until then it will remain in an infinite loop that calls the user.

Hints:

$1.$ Use structures to represent the matrices and their metadata, including the degree

and the coefficients. $($In class we saw a data structure of countries $-$ did something similar$))$

$2.$ Use semaphores or mutex locks to synchronize memory access.

Can also be used in other ways. But remember $-$ processes are not threads

$3.$ Use appropriate synchronization mechanisms to avoid race$-$conditions

file names.

Ex$3$q$2$a$.$c $\mathrm{.}1$

Ex$3$q$2$b$.$c $\mathrm{.}2$