39 lines
1.0 KiB
Nim
39 lines
1.0 KiB
Nim
# Nim-Libp2p
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# Copyright (c) 2022 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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when (NimMajor, NimMinor) < (1, 4):
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{.push raises: [Defect].}
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else:
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{.push raises: [].}
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import sequtils
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import chronos, chronicles
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export chronicles
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template heartbeat*(name: string, interval: Duration, body: untyped): untyped =
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var nextHeartbeat = Moment.now()
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while true:
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body
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nextHeartbeat += interval
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let now = Moment.now()
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if nextHeartbeat < now:
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let
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delay = now - nextHeartbeat
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itv = interval
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if delay > itv:
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info "Missed multiple heartbeats", heartbeat = name,
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delay = delay, hinterval = itv
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else:
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debug "Missed heartbeat", heartbeat = name,
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delay = delay, hinterval = itv
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nextHeartbeat = now + itv
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await sleepAsync(nextHeartbeat - now)
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