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Let complete/fail cancelled Future[T]/FutureVar[T] for free.

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cheatfate 2019-06-25 10:18:47 +03:00
parent 7d7753b7fd
commit 15b25140b4
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GPG Key ID: 46ADD633A7201F95
1 changed files with 32 additions and 27 deletions
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7
chronos/asyncfutures2.nim
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@ -210,6 +210,7 @@ proc remove(callbacks: var Deque[AsyncCallback], item: AsyncCallback) =
p.deleted = true
proc complete[T](future: Future[T], val: T, loc: ptr SrcLoc) =
if not(future.cancelled()):
checkFinished(future, loc)
doAssert(isNil(future.error))
future.value = val
@ -221,16 +222,18 @@ template complete*[T](future: Future[T], val: T) =
complete(future, val, getSrcLocation())
proc complete(future: Future[void], loc: ptr SrcLoc) =
## Completes a void ``future``.
if not(future.cancelled()):
checkFinished(future, loc)
doAssert(isNil(future.error))
future.state = FutureState.Finished
future.callbacks.call()
template complete*(future: Future[void]) =
## Completes a void ``future``.
complete(future, getSrcLocation())
proc complete[T](future: FutureVar[T], loc: ptr SrcLoc) =
if not(future.cancelled()):
template fut: untyped = Future[T](future)
checkFinished(fut, loc)
doAssert(isNil(fut.error))
@ -242,6 +245,7 @@ template complete*[T](futvar: FutureVar[T]) =
complete(futvar, getSrcLocation())
proc complete[T](futvar: FutureVar[T], val: T, loc: ptr SrcLoc) =
if not(futvar.cancelled()):
template fut: untyped = Future[T](futvar)
checkFinished(fut, loc)
doAssert(isNil(fut.error))
@ -256,6 +260,7 @@ template complete*[T](futvar: FutureVar[T], val: T) =
complete(futvar, val, getSrcLocation())
proc fail[T](future: Future[T], error: ref Exception, loc: ptr SrcLoc) =
if not(future.cancelled()):
checkFinished(future, loc)
future.state = FutureState.Failed
future.error = error