- Producer - Consumer Model
- Definition of blocking queue
- How is blocking queue implemented?
Producer - Consumer Model
Producer-Consumer Pattern is a classic multi-threaded/multi-process design pattern used to decouple the process of “production data” and “consumer data” by introducing aBuffer (queue)As an intermediate layer, producers and consumers do not need to interact directly, thereby achieving asynchronous decoupling and supporting concurrent processing.
Producer thread_1 ──> Buffer (queue) ──> Consumer thread_1
Producer thread_2 ──> ──> Consumer thread_2
... ──> ──> ...If you want to make the software more adaptable, you can replace the buffer (queue) with a blocking queue.
Definition of blocking queue
A blocking queue is a queue that supports blocking operations. When the queue is full, the thread trying to add elements to the queue will be blocked until there is space in the queue; when the queue is empty, the thread trying to remove elements from the queue will also be blocked until there are elements in the queue for removal.
How is blocking queue implemented?
The underlying implementation of blocking queues depends on different programming languages and operating systems, but is usually usedLock、Conditional variablesorSemaphoreEquivalent synchronization mechanism to achieve thread safety and blocking operations.
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