Main Thread in C#
C# provides built-in support for multithreaded programming. A multi-threaded program contains two or more parts that can run concurrently. Each part of such a program is called an thread, and each thread defines a separate path of execution.
When a C# program starts up, one thread begins running immediately. This is usually called the main thread of our program.
- It is the thread under which other “child” threads will be created.
- Often, it must be the last thread to finish execution because it performs various shutdown actions.
Welcome to the Main thread Welcome to the Child thread Welcome to the Child thread
Explanation: The above program consists of only one thread that is known as the main thread. The main thread works just like other thread but it starts automatically, you need not to require any
Start() method to start the execution of the main thread. Both thrA and thrB are the child thread of main thread. First main thread starts its working after that child thread starts their working.
For accessing main thread you require the Thread class object to refer it. You can create this by using the CurrentThread property of the Thread class. It will return the reference to the thread in which it used. So when you use CurrentThread property inside the main thread you will get the reference of the main thread. After that, you will get control over the main thread just like another thread.
Main thread does not have name The priority of main thread is: Normal The name of main thread is: Main Thread
We can create a deadlock by just using Main thread, i.e. by just using a single thread. The following C# program demonstrates this.
Enter into DEADLOCK!!
Max real time limit exceeded due to either by heavy load on server or by using sleep function
Explanation: The statement “
Thread.currentThread().join()“, will tell the Main thread to wait for this thread(i.e. wait for itself) to die. Thus the Main thread waits for itself to die, which is nothing but a deadlock.