59 lines
2.2 KiB
Nim
59 lines
2.2 KiB
Nim
# nim-raft
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# Copyright (c) 2023 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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import chronos
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template awaitWithTimeout*[T](operation: Future[T],
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deadline: Future[void],
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body: untyped) =
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let f {.inject.} = operation
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await f or deadline
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if not f.finished:
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# If we don't wait for for the cancellation here, it's possible that
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# the "next" operation will run concurrently to this one, messing up
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# the order of operations (since await/async is not fair)
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await cancelAndWait(f)
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else:
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body
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# template awaitWithTimeout*[T](operation: Future[T],
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# deadline: Future[void],
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# onTimeout: untyped): T =
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# let f = operation
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# await f or deadline
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# if not f.finished:
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# # If we don't wait for for the cancellation here, it's possible that
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# # the "next" operation will run concurrently to this one, messing up
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# # the order of operations (since await/async is not fair)
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# await cancelAndWait(f)
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# onTimeout
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# else:
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# f.read
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# template awaitWithTimeout*[T](operation: Future[T],
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# timeout: Duration,
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# onTimeout: untyped): T =
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# awaitWithTimeout(operation, sleepAsync(timeout), onTimeout)
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# template awaitWithTimeout*(operation: Future[void],
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# deadline: Future[void],
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# onTimeout: untyped) =
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# let f = operation
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# await f or deadline
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# if not f.finished:
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# # If we don't wait for for the cancellation here, it's possible that
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# # the "next" operation will run concurrently to this one, messing up
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# # the order of operations (since await/async is not fair)
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# await cancelAndWait(f)
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# onTimeout
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# template awaitWithTimeout*(operation: Future[void],
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# timeout: Duration,
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# onTimeout: untyped) =
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# awaitWithTimeout(operation, sleepAsync(timeout), onTimeout) |