coroutine.yield()-DPDK中文网

coroutine.yield() is a function used in Lua programming language for pausing the execution of a coroutine and returning control to the caller. Coroutines allow you to write non-blocking code, enabling cooperative multitasking by yielding control back and forth between functions.

Here’s a simple example of how coroutine.yield() works:

-- Define a coroutine function
function count()
    for i = 1, 5 do
        print("Counting: " .. i)
        coroutine.yield() -- Pause the coroutine here
    end
end

-- Create a new coroutine
co = coroutine.create(count)

-- Resume the coroutine multiple times
for i = 1, 5 do
    print("Resuming Coroutine...")
    coroutine.resume(co) -- This will execute until it hits yield()
end

Explanation:

In this example, we define a coroutine function count that counts from 1 to 5.
Each time it prints a number, it calls coroutine.yield(), which pauses its execution.
We then create a coroutine with coroutine.create() and use coroutine.resume() to start or continue its execution.

Each call to resume will continue the execution until it reaches the next yield.

If you have any further questions about coroutines or specific use cases, feel free to ask!

内容由零声教学AI助手提供，问题来源于学员提问