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Unix HW semaphores

Hi

I need finish this hw due 29 october 3 pm. will accept bid in 1-2 am.

No 24 hours cancelations please.

All assignment in attached file, HW5. and 5.9, [url removed, login to view], and [url removed, login to view]

scanned page

here is start of

What is a semaphore? Describe two operations of a semaphore.

[url removed, login to view] is a race condition? How do we avoid race conditions? What are four conditions for a good solution to the critical region (section) problem?

Problem_3

Execution of multiple processes both in uniprocessor system and multiprocessor system result in major difficulties in using shared global resource, optimal management of

resource allocation, finding program error. The echo procedure on page 204 of the textbook as a simple example illustrates these three difficulties both in uniprocessing and multiprocessing system.

## Deliverables

1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.

2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables):

a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment.

b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request.

3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).

## Platform

UNIX

Habilidades: Programação C, Engenharia, Linux, Mac OS, MySQL, PHP, Arquitetura de software, Teste de Software, Solaris, UNIX

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Acerca do Empregador:
( 285 comentários ) Stavropol, Russian Federation

ID do Projeto: #3060936