coroutine
2
8.2
- noun
- /ˈkɔːrəˌtiːn/
- Specialized
:
corutina
- A coroutine lets a program pause its execution and later resume, allowing for smooth multitasking.
Examples
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Coroutines alleviate this by putting stateful control in each place where it is needed.
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It's true that arranging the communication between coroutines is important.
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At the low level, a coroutine is just a code address combined with its call stack.
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You also need a chunk of RAM larger than your greatest possible stack depth per coroutine.
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Although there are different ways of implementing them, coroutines are best understood in the context of continuations.
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In a lot of ways, coroutines are like more deterministic threads.
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The code that catches input events is one coroutine; the rest of the program (including GUI updates) is the other one.
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I took a quick look at the design of Lua coroutines—that looks pretty nice.
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You can easily implement coroutines in terms of continuations; resuming a coroutine is just resuming the continuation of another piece of code.
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In programming, a coroutine can pause its operation to handle other tasks without starting over.
Surface Forms
Morphology
Etymology
Coroutine comes from co- ('together') and routine ('a set of steps' or 'a small program'). So a coroutine is a routine that can pause and resume to 'work together' with other routines, which is why coroutines help a program do many tasks without stopping.