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Recent questions tagged inter-process-communication

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Process Synchronisation
What is the significance of infinite loop that is written in every example of process synchronisation? What would happen if there wasn't any infinite loop?

ajayraho asked in Operating System Oct 23, 2022

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Best Open Video Playlist for Inter-Process Communication Topic | Operating Systems
Please list out the best free available video playlist for Inter-process Communication from Operating Systems as an answer here (only one playlist per answer). We'll then select the best playlist and add to GO ... ones are more likely to be selected as best. For the full list of selected videos please see here

makhdoom ghaya asked in Study Resources Aug 20, 2022

by makhdoom ghaya

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1 answer

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Producer Consumer, if buffer is empty in begining(self doubt)?
I am confused in understanding the complete flow of producer-consumer problem in following schenerio. Let currently buffer in empty and there is no data in there,and let some how consumer starts executing and will make F = ... the counting semaphore helping consumer to determine if there is even a single buffer full to consume from it.

Atharva007 asked in Operating System Mar 20, 2022

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4 answers

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ISRO2020-58
Remote Procedure Calls are used for communication between two processes remotely different from each other on the same system communication between two processes on the same system communication between two processes on the separate systems none of the above

Satbir asked in Computer Networks Jan 13, 2020

by Satbir

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5

MadeEasy Workbook: Operating System - Inter Process Commmunication
Consider the following sequential code which is executed in a multiprogramming mode by assuming that each statement can execute independently to achieve the concurrency. If any statement dependent on other statements then those statements will be ... and S2 d)S2 and S4 Given answer is option c but according to me answer should be d

Jyoti Kumari97 asked in Operating System Jan 14, 2019

by Jyoti Kumari97

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#OS #Semaphores Producer Consumer Problem Self Doubt.
I know, that both P and C can go and fall into sleeping state in case of preemption and this can be solved via Semaphores. Now, my doubt is that integer bit that will be set by the P and being sent to C and C will see the semaphore bit ... ? Basically, both P and C can send this integer bit or only P can send this to C to wake him up? Thank you!

iarnav asked in Operating System Jul 22, 2018

by iarnav

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3 answers

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Process Synchronisation ( binary semaphores)
Consider the below program as two concurrent processes: Semaphore x:= 0; P1: repeat forever P2: repeat forever 1.V(x); 4. P(x); 2.Compute; 5.Compute; 3.P(x); 6.V(x); Consider the following statements about process P1 & P2: (1) ... chance to run , and it wil starve (THIS IS WHAT I THOUGHT THE ANSWER SHOULD BE , PLEASE COMMENT, IF I AM WRONG ANYWHERE)

NIKU asked in Operating System Oct 28, 2017

by NIKU

779 views

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1 answer

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Process Synchronisation
11. Consider the following program: Const int n= 10 int Count= 0 Void A( ) { int i; for(i= 1 to n) Count= Count + 1; } Main ( ) { Par begin A( ); A( ); A( ); A( ); Par end } What is the minimum and maximum possible value of count after the ... 40 (b) 2, 40 (c) 3, 40 (d) 4, 40 NOTE: I am not able to understand what does "par begin" and "par end" indicates

NIKU asked in Operating System Oct 28, 2017

by NIKU

369 views

3 votes

1 answer

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Producer Consumer Problem
Consider the producer-consumer problem solution using semaphore. Which of the following condition below synchronization mechanism satisfies. Mutual Exclusion Bounded Waiting Progress Architecural Neutral mutex buffer_mutex; // similar to "semaphore buffer_mutex = ... buffer_mutex); item = removeItemFromBuffer(); up(buffer_mutex); up(emptyCount); consumeItem(item); } }

Durgesh Singh asked in Operating System Jul 22, 2017

by Durgesh Singh

1.9k views

2 votes

2 answers

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Explain what the output will be at line A.
#include <sys/types.h> #include <stdio.h> #include <unistd.h> int value =5; int main( ) { pid_t pid; pid=fork( ); if (pid == 0) { /* child process */ value +=15; return 0; } else if (pid > 0) { /*parent process */ wait(NULL); printf(“PARENT: value=%d”, value); /* LINE A */ return 0; } } What output will be at Line A?

milankamilya asked in Operating System May 25, 2016

by milankamilya

4.2k views

3 votes

1 answer

11

Producer consumer code using semaphore
The code for producer consumer problem using semaphore is producer's code do { * // produce an item in nextproduced wait(empty) ; wait(mutex) ; buffer[in] = nextProduced; in = (in + 1) % BUFFER-SIZE; signal(mutex) ; signal( ... consumer. Since producer does not affect 'out' and consumer does not affect 'in', so we could have used mutex1 and mutex2.

admin asked in Operating System Sep 22, 2015

by admin

1.1k views

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1 answer

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In message passing system how many points of synchronization is possible??
In message passing system how many points of synchronization is possible??

rajsh3kar asked in Operating System Dec 15, 2014

1.0k views

30 votes

1 answer

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GATE CSE 1997 | Question: 3.7
I/O redirection implies changing the name of a file can be employed to use an existing file as input file for a program implies connecting $2$ programs through a pipe None of the above

Kathleen asked in Operating System Sep 29, 2014

6.9k views

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