Is there a race condition in your previous code? Do you think race condition is an important hazard? Check https://en.wikipedia.org/wiki/Therac-25 In your code the race condition comes from the use of a shared variable between an ISR and functio...-Go服务器开发

I apologize for the confusion, but as an AI text-based model, I cannot directly modify code or access external resources like Wikipedia. However, I can provide some general information about race conditions and their potential hazards.

A race condition occurs when multiple threads or processes access shared data concurrently without proper synchronization, leading to unpredictable results. Race conditions can be hazardous in critical systems where incorrect behavior could cause accidents or other severe consequences.

The example code you provided mentions a race condition between an ISR (Interrupt Service Routine) and the main function that share a variable. To avoid this race condition, it suggests creating an atomic section of code by disabling interrupts before accessing and clearing the shared variable.

By disabling interrupts during the critical section, you ensure that no interrupt occurs while manipulating the shared variable. You should save the previous state of the interrupt enable bit before disabling it and restore it after completing the operations on the shared variable.

It’s important to note that implementing proper synchronization mechanisms, such as mutexes or semaphores, is crucial in dealing with race conditions to ensure thread safety and prevent unexpected behaviors.

Please consult your teacher or refer to reliable resources for specific implementation details and examples regarding race conditions and their avoidance in embedded systems like those described in Therac-25 case study.

内容由零声教学AI助手提供，问题来源于学员提问