CSCE 5640, Fall 2016

Project #1

Due: 11-9-2016

For this project you may be working in groups of two. Each member of your group must sign up on the corresponding project sheet in order to receive a grade. Your task is to implement a semaphore-based solution to the problem stated below.

Consider a system with N blocks of storage, each of which holds one unit of information (e.g. an integer, character, or employee record). Initially, these blocks are empty and are linked onto a list called freelist. Three threads communicate using shared memory in the following manner:

Shared Variables: freelist, list-1, list-2: block (where block is some data type to hold items)


var b: pointer to type block;

while (1)


b:= unlink(freelist);


link(b, list1);



var x,y: pointer to type block;

while (1)




use_block_x_to_produce info_in_y(x, y);

link(x, freelist);

link(y, list-2);



var c: pointer to type block;





link(c, freelist);


Using the POSIX library, rewrite the code for the threads, using semaphores to implement the necessary mutual exclusion and synchronization. The solution must be deadlock-free and concurrency should not be unnecessarily restricted.

Habilidades: Programación en C

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Información del empleador:
( 12 comentarios ) hyderabad, United States

Nº del proyecto: #12010191

Adjudicado a:


Hi I am an Computer Engineering Student at Wayne State University. I am an expert on C/C++. SO I can do your project. Please message me with further details. Kind regards.

$35 USD en 1 día
(6 comentarios)

2 freelancers están ofertando el promedio de $38 para este trabajo


Hello, I'm interested by your project but could you please give more details? Some words about me, I'm an Electronic & Computer Science Engineer who has graduated in 2003. Since I've graduated, I worked for Aerospa Más

$40 USD en 5 días
(12 comentarios)