Contents
- 1 What are the conditions for process synchronization?
- 2 What are the 3 criteria to be ensured for process synchronization?
- 3 What are the two types of synchronization issues?
- 4 What is the purpose of process synchronization?
- 5 Which are the four conditions that holds deadlocks?
- 6 When do you need a process synchronization mechanism?
- 7 How to synchronize multiple processes in Win32?
What are the conditions for process synchronization?
Process synchronization needs to be implemented to prevent data inconsistency among processes, process deadlocks, and prevent race conditions, which are when two or more operations are executed at the same time, not scheduled in the proper sequence and not exited in the critical section correctly.
What are the 3 criteria to be ensured for process synchronization?
Three must rules which must enforce by critical section are : 1) Mutual Exclusion 2) Process solution 3)Bound waiting. Mutual Exclusion is a special type of binary semaphore which is used for controlling access to the shared resource.
What are the classical problems of synchronization?
Classical problems of Synchronization with Semaphore Solution
- Bounded-buffer (or Producer-Consumer) Problem: Bounded Buffer problem is also called producer consumer problem.
- Dining-Philosphers Problem:
- Readers and Writers Problem:
- Sleeping Barber Problem:
What are the two types of synchronization issues?
The following are some classic problems of synchronization: The Producer–Consumer Problem (also called The Bounded Buffer Problem); The Readers–Writers Problem; The Dining Philosophers Problem.
What is the purpose of process synchronization?
The main purpose of synchronization is the sharing of resources without interference using mutual exclusion. The other purpose is the coordination of the process interactions in an operating system. Semaphores and monitors are the most powerful and most commonly used mechanisms to solve synchronization problems.
What are the types of process synchronization?
On the basis of synchronization, processes are categorized as one of the following two types:
- Independent Process : Execution of one process does not affects the execution of other processes.
- Cooperative Process : Execution of one process affects the execution of other processes.
Which are the four conditions that holds deadlocks?
Conditions for Deadlock- Mutual Exclusion, Hold and Wait, No preemption, Circular wait. These 4 conditions must hold simultaneously for the occurrence of deadlock.
When do you need a process synchronization mechanism?
In order to synchronize the processes, there are various synchronization mechanisms. Process Synchronization is mainly needed in a multi-process system when multiple processes are running together, and more than one processes try to gain access to the same shared resource or any data at the same time.
Why is critical section important in process synchronization?
The critical section plays an important role in Process Synchronization so that the problem must be solved. Some widely used method to solve the critical section problem are as follows: This is widely used and software-based solution to critical section problems.
How to synchronize multiple processes in Win32?
Multiple processes can have handles to the same event, mutex, semaphore, or timer object, so these objects can be used to accomplish interprocess synchronization. The process that creates an object can use the handle returned by the creation function ( CreateEvent, CreateMutex, CreateSemaphore, or CreateWaitableTimer ).