Using shared memory to copy a file:

Write $2$ programs CP$1.$c$,$ and CP$2.$c that will use a shared memory to copy data from a source file to

a destination file. The $2$ files are managed by different processes $($CP$1$ and CP$2)$: the source file is

managed by one process $($CP$1)$ and the destination file is managed by another $($CP$2).$ Assume that

the buffer used to read$/$write the files is too small to contain the entire file, so that multiple read

and write calls $($looped$)$ are necessary to process the entire file. Find detailed requirements below.

The programs do the following:

CP$1.$c:

Creates a shared memory that will be used as a temporary buffer.

Note: All labs are due before next week's lab starts

Opens the source file, which was passed as a command line argument, to read data

from.

Reads a chunk of data from the source file and writes it to the shared memory. Waits for

CP$2$ to read the shared memory before it writes the next part of the source file to the

shared memory. The cycle continues until the file is fully copied to shared memory.

CP$2.$c:

Opens an already created shared memory that will be used as a temporary buffer.

Opens the destination file, that was passed as a command line argument, to write data

to$.$

Reads a chunk of data from the shared memory and writes it to the destination file.

Waits for CP$1$ to write the next part of the source file before it reads it from the shared

memory and writes to the destination file. The cycle continues until the file is fully

copied and EOF is reached.

After writing is complete, detaches and deletes shared memory.

$**$ONLY USE SYSTEM CALLS PLS$**$