Thread.sleep () Deficiency and better alternative solution
Although seems to be a harmless method introduced in the code, there is a significant disadvantage to use it, especially in the modern programming environment.
Thread.Sleep()
The potential problem of:
Thread.Sleep()
Inaccurate timing:
It is impossible to ensure accurate timing. It blocks the number of milliseconds specified by the current thread, which may lead to longer delay time than expected.
- Resource waste: threads are precious resources, and will not waste them. Each thread consumes memory and generates context switching overhead. Excessive use of threads will damage performance.
Thread.Sleep()
Code execution block: - will block threads and prevent other code execution. Therefore, if you need to continuously monitor or respond to the code of the event, will hinder its execution.
Thread.Sleep()
- alternative scheme:
Thread.Sleep()
In order to overcome the limitations of , please consider the following alternative: Thread.Sleep()
Waithandles: Waithandles provides a more effective way to wait for specific events. They send signals when conditions are met, allowing the code to resume execution immediately.
System.threading.timer:
Similar to Waithandles, System.thReading.timer allows you to arrange the callback function after calling the specified time interval. It provides a less resource consumption and more accurate introduction of delay.
Thread.Sleep()
Exception scheme examples: -
In the first example, you can use the waiting object to replace , which will block the thread until you release the lock:
-
In the second example, you can continue to inquire about the new images in the directory instead of using :
By using these alternative methods, you can write more efficient, more response and reliable applications.
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