MAILBOX

This program aims to help with understanding of threads and semaphores. The program takes in a number from the user (must be less than 11) and creates that number of threads. Each thread then gets assigned a mailbox, which can hold a single message at a time. After these are created the parent thread then prompts the user to input a message and a recipient child thread mailbox. Using semaphores the acces to such mailboxes is protected allowing a a single thread to access the shared memory at a time.

The user can then termnate the program by sending a \n as input. Each thread then reports the status of it's mailbox and exits.

To compile this program execute the following command:

make

OR

gcc -std=gnu99 -o mail mail.c -lpthread

This will generate the executable mail.