read writers problem, Readers Writers with Processes and Threads Write two programs, C/C++ Programming

read writers problem, C/C++ Programming

Assignment Help:

Readers Writers with Processes and Threads
Write two programs implementing ``reader pritority readers-writers synchronization'''' on files. One program will use processes, created with fork(), and synchronized with semaphores. The other program will use threads, created with pthread_create(), and synchronized with mutexes and conditions. In the following, the word "process" is used to describe either a process or thread, as appropriate.
Your program will create two readers and two writers. All four will access a common file, named ``SharedFile.'''' This file should contain a single number. The file should be created and given an initial value of 0 before the processes/threads are spawned.
The reader pseudocode:
repeat 20 times:
acquire read lock
read the number from SharedFile
release the read lock
print a message identifying the process, and the value read from SharedFile
sleep for a random period between 100 and 200 msec
The writer pseudocode:
repeat 20 times:
acquire write lock
read the number from SharedFile
increment it by a random value between 1 and 6
write the new value to SharedFile
release the write lock
print a message identifying the process, and the value written to SharedFile
sleep for a random period between 100 and 400 msec
Submit ONLY your C/C++ source code. Be sure to put your name and course in the comment header. The code must run on the "algebra and friends" machines. Use good programming style (comments, indentation, meaningful identifiers, etc.)

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages

read writers problem, C/C++ Programming

Related Discussions:- read writers problem

Fill an array of randomly generated integers, The task consists of two part...

Polishing game, Byteland county is very famous for luminous jewels. Luminou...

Define inheritance?, Define inheritance?

Friend function example, example of friend

Identifier and constant, What are Id e n t i f ie rs a n d C o...

Computer organization, what do you mean by control word

Sort history, history of c programming

Advanced error checking and structures, It is standard on functions to prov...

Accessibility, What are the legal requirements with which websites must com...

Library functions, is getchar() is a C++ library function?

Write Your Message!

Featured Services

Online Tutoring

Project Development

Exam Preparation

Course Help

Assignment Help

Popular Subjects

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT