A PT is a program structure that allows a function to suspend execution midway and resume later without blocking the entire program. Coroutines are widely used in modern programming, especially in scenarios requiring concurrent tasks such as I/O operations and network requests.
1. Non-blocking: Coroutines can suspend while waiting for a task to complete, yielding execution to other coroutines, thus achieving non-blocking concurrent processing.
2. Lightweight: Compared to threads, coroutines are more lightweight, requiring no support from the operating system kernel, and have lower overhead for creation and destruction.
3. Cooperative multitasking: Unlike preemptive multitasking (such as threads), coroutines rely on the program to explicitly yield control.
There are various API to implement coroutines, mainly including:
1. PT_INIT()
2. PT_BLOCK()
3. PT_DEINIT()
4. PT_RESUME()
5. PT_CREATE()
see the example 'main.c' file.
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1. I/O intensive tasks: Such as file reading/writing and network requests, coroutines can yield execution while waiting for I/O operations to complete, thus improving efficiency.
2. High-concurrency servers: For example, network servers can handle many concurrent connections using coroutines, enhancing performance.
3. User interface programming: In GUI programming, coroutines can handle asynchronous events to avoid interface freezing.
MIT by Jim