生产者—消费者问题流程图

Sure, here is the flowchart for the Producer-Consumer Problem:

1. Initialize a buffer of size N.
2. Initialize variables representing the number of items in the buffer (initially 0) and the position of the next item to produce (initially 0).
3. Create two processes: a producer and a consumer.
4. The producer repeatedly produces items and adds them to the buffer. If the buffer is full, the producer waits until a consumer has consumed an item before adding another item.
5. The consumer repeatedly consumes items from the buffer. If the buffer is empty, the consumer waits until a producer has produced an item before consuming another item.
6. If the producer runs out of items to produce, it signals the consumer to stop consuming by adding a special "end-of-stream" item to the buffer.
7. The consumer stops consuming when it encounters the "end-of-stream" item.
8. Terminate the processes.