Explain producer-consumer problem using semaphores, Operating System

Assignment Help:

Producer-Consumer Problem Using Semaphores

The Solution to producer-consumer problem use three semaphores namely- full, empty and mutex.

The semaphore 'full' is utilized for counting the number of slots in the buffer that are full. The 'empty' for calculate the number of slots that are empty and semaphore 'mutex' to make sure that the producer and consumer don't access modifiable shared section of the buffer simultaneously.

Initialization

  • Set full buffer slots to 0.
        i.e., semaphore Full = 0.
  • Set empty buffer slots to N.
        i.e., semaphore empty = N.
  • For control access to critical section set mutex to 1.
        i.e., semaphore mutex = 1.

Producer ( )
WHILE (true)        
            produce-Item ( );
        P (empty);
        P (mutex);
        enter-Item ( )
        V (mutex)
        V (full);

Consumer ( )
WHILE (true)
        P (full)
        P (mutex);
        remove-Item ( );
        V (mutex);
        V (empty);
        consume-Item (Item)


Related Discussions:- Explain producer-consumer problem using semaphores

Is anti virus a system utility, Problem: a) Explain physically what occ...

Problem: a) Explain physically what occurs when a disk is fragmented. What is the purpose of "defragmenting" a disk? b) What is the idea behind backing up data on a secondar

Array-initialization loops using lru replacement algorithm, Q. Consider th...

Q. Consider the two-dimensional array A: int A[][] = new int[100][100]; Whereas A [0][0] is at location 200 in a paged memory system with pages of size 200. A little process

Explain fixed partitioning, Explain fixed partitioning. Partitioning ar...

Explain fixed partitioning. Partitioning are the simpler techniques that don't involve virtual memory. Partitioning has been used in numerous variations in operating systems.

Characteristics of suspend process, Characteristics of suspend process ...

Characteristics of suspend process Suspended process isn't immediately available for execution. The process may or may not be waiting on an event. For preventing t

Define entry section and exit section, Define entry section and exit sectio...

Define entry section and exit section. The critical section problem is to design a protocol that the processes can use to cooperate. Every process must request permission  to e

Describe internal layout of the file system in windows 2000, Describe the i...

Describe the internal layout of the file system in windows 2000. The basic entity in NTFS is a volume and a volume is created by the Windows 2000 disk administrator utility and

CPU, TURNAROUND TIME

TURNAROUND TIME

What is meant by the phrase thread-safe, The term thread-safe in computer p...

The term thread-safe in computer programming describes that routine or portion of the program that may be called from multiple programming threads without uncalled for interactions

Definition of operating system, Q. Definition of Operating System? Defi...

Q. Definition of Operating System? Definition of Operating System: • An Operating system is a program which controls execution of application programs and acts as an interfa

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