Producer - consumer synchronization, Operating System

Assignment Help:

This assignment is based on Programming Project 6.40 in Silbershatz. Implement the ProducerXConsumer program according to the instructions for Project 6.40 for both Linux and Win32 threads. (1) However BEFORE you add any synchronization to your code use sleep()/usleep() calls to force your code to produce as many different types of synchronization bugs as possible.  Use the output produced by your program and for your Linux implementation only also use 'strace -f' to explain how and where in your code the synchronization bugs occur.  Be sure to use the command line argument for strace - see the man pages for details on this Each of your threads should fprint out a line of output to stderr when it is first started, and again when each buffer of input/output is processed.  

Submit code and annotated  test output for these experiments explaining where the race conditions occur.

NEXT, modify your code by adding appropriate synchronization (mutex locks and/or signal semaphores and/or count semaphores) so that it always executes correctly.   Use diff on Linux & comp on Windows to verify that the input & output files are identical by annotating your trace output clearly and concisely and using diff/comp to compare the contents of the input & output files.  Explain the logic of how you synchronized your code in your design documentation by submitting high level pseudocode with semaphore synchronization (init, p(), v()) and an explanation of the logic that you used; (2)  submit wellXcommented source code and annotated output (including strace listings) to demonstrate that your code is executing correctly, despite the sleep/usleep commands from the previous part.

Run your final program with 3 buffers (each of which is 13 bytes long),  6 producers, 3 consumers and a file that contains about 200 bytes; annotate & submit this output. (3) For the third part of this assignment, modify your synchronization so that a deadlock condition occurs, and document this situation by explaining in your design documentation how deadlock was produced in your code and how it can be avoided.


Related Discussions:- Producer - consumer synchronization

Determine a processing that is not a part of synthesis phase, Determine a p...

Determine a processing that is not a part of Synthesis phase  Perform LC processing is not a part of Synthesis phase

Backup and recovery, what is it all about? why do we need? what are the typ...

what is it all about? why do we need? what are the types of backup? how is it done in unix?

Command line interface, College life is tough.  Eating pizza for every meal...

College life is tough.  Eating pizza for every meal is hitting you hard.  You are looking at working out to stay healthy.  You found a web site that tells you how many calories eac

Deadlock involving only one single process, Is it probable to have a deadlo...

Is it probable to have a deadlock involving only one single process? Describe your answer. Answer: No This pursue directly from the hold-and-wait condition.

What are the different methods for handling deadlocks?, What are the differ...

What are the different methods for handling deadlocks? Deadlock detection and recovery: Permit the system to enter a deadlock state, detect it and after that rec

MULTITASKING, EXPLAIN MULTITASKING IN DETAIL

EXPLAIN MULTITASKING IN DETAIL

Introduction to microprocessors, Let us consider the pining details of the ...

Let us consider the pining details of the 68HC11 as shown below.     Each pin has a defined function, some easy, some complex. A microprocessor designer should understan

Memory management, diffenciet between least recently used and not recently ...

diffenciet between least recently used and not recently used

Unix script, As a group, you may need to make some enhancements to your dev...

As a group, you may need to make some enhancements to your development server (NOT your stable server!)  It needs to be able to run the makepasswd program, which may require instal

Describe two segment-replacement algorithms, Q. Segmentation is alike to p...

Q. Segmentation is alike to paging but uses variable-sized "pages". Describe two segment-replacement algorithms based on FIFO and LRU page replacement schemes. Remember that since

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd