Questions tagged [semaphore]
The semaphore tag has no usage guidance.
7
questions
0
votes
1answer
17 views
How to trigger a thread to start working using semaphore?
How to trigger a thread to start working using semaphore?
I have find a lot of explanation about thread and semaphore but i still don't understand, any help please
0
votes
1answer
21 views
Process synchronization problem
The atomic fetch-and-set x,y instruction unconditionally sets the memory location x to 1 and fetches the old value of x in y without allowing any intervening access to the memory location x. Consider ...
0
votes
1answer
36 views
When does a semaphore issue a wait and when does it issue a signal?
In my textbook, Operating Systems: Internals and Design Principles (9th Edition) by William Stallings in chapter 5, it explains how semaphores work:
The fundamental principle is this: Two or more ...
0
votes
0answers
14 views
1
vote
0answers
23 views
Comparing wait-signal alternatives for synchronizing two piece of programs
I came across following problem:
A certain computation generates two arrays a and b such that ...
2
votes
1answer
67 views
Designing solution to critical section problem with two semaphores vs single semaphore
I came across following problem:
Let two processes P1 and P2 are there:
...
2
votes
0answers
24 views
Does this state certify to be called as a deadlock?
I came across following problem:
Barrier is a synchronization construct where a set of processes synchronizes globally i.e., each process in the set arrives at the barrier and waits for all others ...
