744 lines
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<option value="type">Type</option>
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</select>
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</div>
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<ul class="simple simple-toc" id="toc-list">
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<li>
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<a class="reference reference-toplevel" href="#6" id="56">Imports</a>
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<ul class="simple simple-toc-section">
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</ul>
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</li>
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<li>
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<a class="reference reference-toplevel" href="#7" id="57">Types</a>
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<ul class="simple simple-toc-section">
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<li><a class="reference" href="#CallbackFunc"
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title="CallbackFunc = proc (arg: pointer) {.gcsafe, raises: [].}">CallbackFunc</a></li>
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<li><a class="reference" href="#CancelledError"
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title="CancelledError = object of FutureError">CancelledError</a></li>
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<li><a class="reference" href="#Future"
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title="Future[T] = ref object of FutureBase
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when T isnot void:
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internalValue*: T ## Stored value">Future</a></li>
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<li><a class="reference" href="#FutureBase"
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title="FutureBase = ref object of InternalFutureBase">FutureBase</a></li>
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<li><a class="reference" href="#FutureDefect"
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title="FutureDefect = object of Defect
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cause*: FutureBase">FutureDefect</a></li>
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<li><a class="reference" href="#FutureError"
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title="FutureError = object of CatchableError
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future*: FutureBase">FutureError</a></li>
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<li><a class="reference" href="#FutureFlag"
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title="FutureFlag {.pure.} = enum
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OwnCancelSchedule ## When OwnCancelSchedule is set, the owner of the future is responsible
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## for implementing cancellation in one of 3 ways:
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##
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## * ensure that cancellation requests never reach the future by means of
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## not exposing it to user code, `await` and `tryCancel`
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## * set `cancelCallback` to `nil` to stop cancellation propagation - this
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## is appropriate when it is expected that the future will be completed
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## in a regular way "soon"
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## * set `cancelCallback` to a handler that implements cancellation in an
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## operation-specific way
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##
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## If `cancelCallback` is not set and the future gets cancelled, a
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## `Defect` will be raised.">FutureFlag</a></li>
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<li><a class="reference" href="#FutureFlags"
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title="FutureFlags = set[FutureFlag]">FutureFlags</a></li>
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<li><a class="reference" href="#FutureState"
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title="FutureState {.pure.} = enum
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Pending, Completed, Cancelled, Failed">FutureState</a></li>
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<li><a class="reference" href="#InternalAsyncCallback"
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title="InternalAsyncCallback = object
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function*: CallbackFunc
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udata*: pointer">InternalAsyncCallback</a></li>
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<li><a class="reference" href="#InternalFutureBase"
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title="InternalFutureBase = object of RootObj
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internalLocation*: array[LocationKind, ptr SrcLoc]
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internalCallbacks*: seq[InternalAsyncCallback]
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internalCancelcb*: CallbackFunc
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internalChild*: FutureBase
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internalState*: FutureState
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internalFlags*: FutureFlags
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internalError*: ref CatchableError ## Stored exception
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internalClosure*: iterator (f: FutureBase): FutureBase {.raises: [], gcsafe.}
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when chronosFutureId:
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internalId*: uint
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when chronosStackTrace:
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internalErrorStackTrace*: StackTrace
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internalStackTrace*: StackTrace ## For debugging purposes only.
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when chronosFutureTracking:
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internalNext*: FutureBase
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internalPrev*: FutureBase">InternalFutureBase</a></li>
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<li><a class="reference" href="#LocationKind"
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title="LocationKind {.pure.} = enum
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Create, Finish">LocationKind</a></li>
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</ul>
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</li>
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<li>
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<a class="reference reference-toplevel" href="#12" id="62">Procs</a>
|
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<ul class="simple simple-toc-section">
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<ul class="simple nested-toc-section">cancelled
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<li><a class="reference" href="#cancelled%2CFutureBase"
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title="cancelled(future: FutureBase): bool">cancelled(future: FutureBase): bool</a></li>
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</ul>
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<ul class="simple nested-toc-section">completed
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<li><a class="reference" href="#completed%2CFutureBase"
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title="completed(future: FutureBase): bool">completed(future: FutureBase): bool</a></li>
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</ul>
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<ul class="simple nested-toc-section">error
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<li><a class="reference" href="#error%2CFutureBase"
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title="error(future: FutureBase): ref CatchableError">error(future: FutureBase): ref CatchableError</a></li>
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</ul>
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<ul class="simple nested-toc-section">failed
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<li><a class="reference" href="#failed%2CFutureBase"
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title="failed(future: FutureBase): bool">failed(future: FutureBase): bool</a></li>
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</ul>
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<ul class="simple nested-toc-section">finished
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<li><a class="reference" href="#finished%2CFutureBase"
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title="finished(future: FutureBase): bool">finished(future: FutureBase): bool</a></li>
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</ul>
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<ul class="simple nested-toc-section">flags
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<li><a class="reference" href="#flags%2CFutureBase"
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title="flags(future: FutureBase): FutureFlags">flags(future: FutureBase): FutureFlags</a></li>
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</ul>
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<ul class="simple nested-toc-section">internalInitFutureBase
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<li><a class="reference" href="#internalInitFutureBase%2CFutureBase%2Cptr.SrcLoc%2CFutureState%2CFutureFlags"
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title="internalInitFutureBase(fut: FutureBase; loc: ptr SrcLoc; state: FutureState;
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flags: FutureFlags)">internalInitFutureBase(fut: FutureBase; loc: ptr SrcLoc; state: FutureState;
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flags: FutureFlags)</a></li>
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</ul>
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<ul class="simple nested-toc-section">location
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<li><a class="reference" href="#location%2CFutureBase"
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title="location(future: FutureBase): array[LocationKind, ptr SrcLoc]">location(future: FutureBase): array[LocationKind, ptr SrcLoc]</a></li>
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</ul>
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<ul class="simple nested-toc-section">state
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<li><a class="reference" href="#state%2CFutureBase"
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title="state(future: FutureBase): FutureState">state(future: FutureBase): FutureState</a></li>
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</ul>
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<ul class="simple nested-toc-section">value
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<li><a class="reference" href="#value%2CFuture%5Bvoid%5D"
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title="value(future: Future[void])">value(future: Future[void])</a></li>
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<li><a class="reference" href="#value%2CFuture%5BT%3A%20not%20void%5D"
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title="value[T: not void](future: Future[T]): lent T">value[T: not void](future: Future[T]): lent T</a></li>
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</ul>
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</ul>
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</li>
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<li>
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<a class="reference reference-toplevel" href="#18" id="68">Templates</a>
|
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<ul class="simple simple-toc-section">
|
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<ul class="simple nested-toc-section">completed
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<li><a class="reference" href="#completed.t%2CtypeFuture%2Cstatic%5Bstring%5D"
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title="completed(F: type Future; fromProc: static[string] = ""): Future[void]">completed(F: type Future; fromProc: static[string] = ""): Future[void]</a></li>
|
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<li><a class="reference" href="#completed.t%2CtypeFuture%2CT%2Cstatic%5Bstring%5D"
|
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title="completed[T: not void](F: type Future; valueParam: T;
|
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fromProc: static[string] = ""): Future[T]">completed[T: not void](F: type Future; valueParam: T;
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fromProc: static[string] = ""): Future[T]</a></li>
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</ul>
|
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<ul class="simple nested-toc-section">failed
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<li><a class="reference" href="#failed.t%2CtypeFuture%5BT%5D%2Cref.CatchableError%2Cstatic%5Bstring%5D"
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title="failed[T](F: type Future[T]; errorParam: ref CatchableError;
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fromProc: static[string] = ""): Future[T]">failed[T](F: type Future[T]; errorParam: ref CatchableError;
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fromProc: static[string] = ""): Future[T]</a></li>
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</ul>
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<ul class="simple nested-toc-section">id
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<li><a class="reference" href="#id.t%2CFutureBase"
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title="id(fut: FutureBase): uint">id(fut: FutureBase): uint</a></li>
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</ul>
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<ul class="simple nested-toc-section">init
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<li><a class="reference" href="#init.t%2CtypeFuture%5BT%5D%2Cstatic%5Bstring%5D"
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title="init[T](F: type Future[T]; fromProc: static[string] = ""): Future[T]">init[T](F: type Future[T]; fromProc: static[string] = ""): Future[T]</a></li>
|
|
<li><a class="reference" href="#init.t%2CtypeFuture%5BT%5D%2Cstatic%5Bstring%5D%2Cstatic%5BFutureFlags%5D"
|
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title="init[T](F: type Future[T]; fromProc: static[string] = "";
|
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flags: static[FutureFlags]): Future[T]">init[T](F: type Future[T]; fromProc: static[string] = "";
|
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flags: static[FutureFlags]): Future[T]</a></li>
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</ul>
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</ul>
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</li>
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<li>
|
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<a class="reference reference-toplevel" href="#19" id="69">Exports</a>
|
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<ul class="simple simple-toc-section">
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</ul>
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</li>
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</ul>
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</div>
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<a
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|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L1"
|
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L1" class="link-seesrc" target="_blank" >Edit</a>
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<div id="tocRoot"></div>
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<p class="module-desc"></p>
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<div class="section" id="6">
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<h1><a class="toc-backref" href="#6">Imports</a></h1>
|
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<dl class="item">
|
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<a class="reference external" href="config.html">config</a>, <a class="reference external" href="srcloc.html">srcloc</a>
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</dl></div>
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<div class="section" id="7">
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<h1><a class="toc-backref" href="#7">Types</a></h1>
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<dl class="item">
|
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<div id="CallbackFunc">
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<dt><pre><a href="futures.html#CallbackFunc"><span class="Identifier">CallbackFunc</span></a> <span class="Other">=</span> <span class="Keyword">proc</span> <span class="Other">(</span><span class="Identifier">arg</span><span class="Other">:</span> <span class="Identifier">pointer</span><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">gcsafe</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
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<dd>
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L25"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L25" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="CancelledError">
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<dt><pre><a href="futures.html#CancelledError"><span class="Identifier">CancelledError</span></a> <span class="Other">=</span> <span class="Keyword">object</span> <span class="Keyword">of</span> <a href="futures.html#FutureError"><span class="Identifier">FutureError</span></a>
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</pre></dt>
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<dd>
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Exception raised when accessing the value of a cancelled future
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L91"
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|
class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L91" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="Future">
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<dt><pre><a href="futures.html#Future"><span class="Identifier">Future</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span> <span class="Other">=</span> <span class="Keyword">ref</span> <span class="Keyword">object</span> <span class="Keyword">of</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a>
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<span class="Keyword">when</span> <span class="Identifier">T</span> <span class="Keyword">isnot</span> <span class="Identifier">void</span><span class="Other">:</span>
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<span class="Identifier">internalValue</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">T</span> <span class="Comment">## Stored value</span>
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|
</pre></dt>
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<dd>
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Typed future.
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L81"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L81" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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|
<div id="FutureBase">
|
|
<dt><pre><a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a> <span class="Other">=</span> <span class="Keyword">ref</span> <span class="Keyword">object</span> <span class="Keyword">of</span> <a href="futures.html#InternalFutureBase"><span class="Identifier">InternalFutureBase</span></a>
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</pre></dt>
|
|
<dd>
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Untyped Future
|
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<a
|
|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L78"
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|
class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L78" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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|
<div id="FutureDefect">
|
|
<dt><pre><a href="futures.html#FutureDefect"><span class="Identifier">FutureDefect</span></a> <span class="Other">=</span> <span class="Keyword">object</span> <span class="Keyword">of</span> <span class="Identifier">Defect</span>
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|
<span class="Identifier">cause</span><span class="Operator">*</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a>
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</pre></dt>
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|
<dd>
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L85"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L85" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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|
<div id="FutureError">
|
|
<dt><pre><a href="futures.html#FutureError"><span class="Identifier">FutureError</span></a> <span class="Other">=</span> <span class="Keyword">object</span> <span class="Keyword">of</span> <span class="Identifier">CatchableError</span>
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|
<span class="Identifier">future</span><span class="Operator">*</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a>
|
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</pre></dt>
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|
<dd>
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L88"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L88" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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|
</div>
|
|
<div id="FutureFlag">
|
|
<dt><pre><a href="futures.html#FutureFlag"><span class="Identifier">FutureFlag</span></a> {.<span class="Identifier">pure</span>.} <span class="Other">=</span> <span class="Keyword">enum</span>
|
|
<span class="Identifier">OwnCancelSchedule</span> <span class="Comment">## When OwnCancelSchedule is set, the owner of the future is responsible</span>
|
|
<span class="Comment">## for implementing cancellation in one of 3 ways:</span>
|
|
<span class="Comment">## </span>
|
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<span class="Comment">## * ensure that cancellation requests never reach the future by means of</span>
|
|
<span class="Comment">## not exposing it to user code, `await` and `tryCancel`</span>
|
|
<span class="Comment">## * set `cancelCallback` to `nil` to stop cancellation propagation - this</span>
|
|
<span class="Comment">## is appropriate when it is expected that the future will be completed</span>
|
|
<span class="Comment">## in a regular way "soon"</span>
|
|
<span class="Comment">## * set `cancelCallback` to a handler that implements cancellation in an</span>
|
|
<span class="Comment">## operation-specific way</span>
|
|
<span class="Comment">## </span>
|
|
<span class="Comment">## If `cancelCallback` is not set and the future gets cancelled, a</span>
|
|
<span class="Comment">## `Defect` will be raised.</span></pre></dt>
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|
<dd>
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<a
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|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L35"
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|
class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L35" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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|
</div>
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|
<div id="FutureFlags">
|
|
<dt><pre><a href="futures.html#FutureFlags"><span class="Identifier">FutureFlags</span></a> <span class="Other">=</span> <span class="Identifier">set</span><span class="Other">[</span><a href="futures.html#FutureFlag"><span class="Identifier">FutureFlag</span></a><span class="Other">]</span></pre></dt>
|
|
<dd>
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<a
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|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L51"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L51" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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|
</div>
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|
<div id="FutureState">
|
|
<dt><pre><a href="futures.html#FutureState"><span class="Identifier">FutureState</span></a> {.<span class="Identifier">pure</span>.} <span class="Other">=</span> <span class="Keyword">enum</span>
|
|
<span class="Identifier">Pending</span><span class="Other">,</span> <span class="Identifier">Completed</span><span class="Other">,</span> <span class="Identifier">Cancelled</span><span class="Other">,</span> <span class="Identifier">Failed</span></pre></dt>
|
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<dd>
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L32"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L32" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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|
<div id="InternalAsyncCallback">
|
|
<dt><pre><a href="futures.html#InternalAsyncCallback"><span class="Identifier">InternalAsyncCallback</span></a> <span class="Other">=</span> <span class="Keyword">object</span>
|
|
<span class="Identifier">function</span><span class="Operator">*</span><span class="Other">:</span> <a href="futures.html#CallbackFunc"><span class="Identifier">CallbackFunc</span></a>
|
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<span class="Identifier">udata</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">pointer</span>
|
|
</pre></dt>
|
|
<dd>
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<a
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|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L28"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L28" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="InternalFutureBase">
|
|
<dt><pre><a href="futures.html#InternalFutureBase"><span class="Identifier">InternalFutureBase</span></a> <span class="Other">=</span> <span class="Keyword">object</span> <span class="Keyword">of</span> <span class="Identifier">RootObj</span>
|
|
<span class="Identifier">internalLocation</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">array</span><span class="Other">[</span><span class="Identifier">LocationKind</span><span class="Other">,</span> <span class="Keyword">ptr</span> <a href="srcloc.html#SrcLoc"><span class="Identifier">SrcLoc</span></a><span class="Other">]</span>
|
|
<span class="Identifier">internalCallbacks</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><a href="futures.html#InternalAsyncCallback"><span class="Identifier">InternalAsyncCallback</span></a><span class="Other">]</span>
|
|
<span class="Identifier">internalCancelcb</span><span class="Operator">*</span><span class="Other">:</span> <a href="futures.html#CallbackFunc"><span class="Identifier">CallbackFunc</span></a>
|
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<span class="Identifier">internalChild</span><span class="Operator">*</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a>
|
|
<span class="Identifier">internalState</span><span class="Operator">*</span><span class="Other">:</span> <a href="futures.html#FutureState"><span class="Identifier">FutureState</span></a>
|
|
<span class="Identifier">internalFlags</span><span class="Operator">*</span><span class="Other">:</span> <a href="futures.html#FutureFlags"><span class="Identifier">FutureFlags</span></a>
|
|
<span class="Identifier">internalError</span><span class="Operator">*</span><span class="Other">:</span> <span class="Keyword">ref</span> <span class="Identifier">CatchableError</span> <span class="Comment">## Stored exception</span>
|
|
<span class="Identifier">internalClosure</span><span class="Operator">*</span><span class="Other">:</span> <span class="Keyword">iterator</span> <span class="Other">(</span><span class="Identifier">f</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a><span class="Other">)</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">gcsafe</span></span>.}
|
|
<span class="Keyword">when</span> <span class="Identifier">chronosFutureId</span><span class="Other">:</span>
|
|
<span class="Identifier">internalId</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">uint</span>
|
|
|
|
<span class="Keyword">when</span> <span class="Identifier">chronosStackTrace</span><span class="Other">:</span>
|
|
<span class="Identifier">internalErrorStackTrace</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">StackTrace</span>
|
|
<span class="Identifier">internalStackTrace</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">StackTrace</span> <span class="Comment">## For debugging purposes only.</span>
|
|
|
|
<span class="Keyword">when</span> <span class="Identifier">chronosFutureTracking</span><span class="Other">:</span>
|
|
<span class="Identifier">internalNext</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">FutureBase</span>
|
|
<span class="Identifier">internalPrev</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">FutureBase</span>
|
|
|
|
</pre></dt>
|
|
<dd>
|
|
|
|
|
|
<a
|
|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L53"
|
|
class="link-seesrc" target="_blank">Source</a>
|
|
<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L53" class="link-seesrc" target="_blank" >Edit</a>
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|
|
</dd>
|
|
</div>
|
|
<div id="LocationKind">
|
|
<dt><pre><a href="futures.html#LocationKind"><span class="Identifier">LocationKind</span></a> {.<span class="Identifier">pure</span>.} <span class="Other">=</span> <span class="Keyword">enum</span>
|
|
<span class="Identifier">Create</span><span class="Other">,</span> <span class="Identifier">Finish</span></pre></dt>
|
|
<dd>
|
|
|
|
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|
<a
|
|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L21"
|
|
class="link-seesrc" target="_blank">Source</a>
|
|
<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L21" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
|
|
</div>
|
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|
|
</dl></div>
|
|
<div class="section" id="12">
|
|
<h1><a class="toc-backref" href="#12">Procs</a></h1>
|
|
<dl class="item">
|
|
<div id="cancelled,FutureBase">
|
|
<dt><pre><span class="Keyword">func</span> <a href="#cancelled%2CFutureBase"><span class="Identifier">cancelled</span></a><span class="Other">(</span><span class="Identifier">future</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
|
|
<dd>
|
|
|
|
Determines whether <tt class="docutils literal"><span class="pre">future</span></tt> has cancelled.
|
|
<a
|
|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L210"
|
|
class="link-seesrc" target="_blank">Source</a>
|
|
<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L210" class="link-seesrc" target="_blank" >Edit</a>
|
|
|
|
</dd>
|
|
</div>
|
|
<div id="completed,FutureBase">
|
|
<dt><pre><span class="Keyword">func</span> <a href="#completed%2CFutureBase"><span class="Identifier">completed</span></a><span class="Other">(</span><span class="Identifier">future</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
|
|
<dd>
|
|
|
|
Determines whether <tt class="docutils literal"><span class="pre">future</span></tt> finished with a value.
|
|
<a
|
|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L218"
|
|
class="link-seesrc" target="_blank">Source</a>
|
|
<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L218" class="link-seesrc" target="_blank" >Edit</a>
|
|
|
|
</dd>
|
|
</div>
|
|
<div id="error,FutureBase">
|
|
<dt><pre><span class="Keyword">func</span> <a href="#error%2CFutureBase"><span class="Identifier">error</span></a><span class="Other">(</span><span class="Identifier">future</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Keyword">ref</span> <span class="Identifier">CatchableError</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
|
|
<dd>
|
|
|
|
<p>Return the error of <tt class="docutils literal"><span class="pre"><span class="Identifier">future</span></span></tt>, or <tt class="docutils literal"><span class="pre"><span class="Keyword">nil</span></span></tt> if future did not fail.</p>
|
|
<p>See <tt class="docutils literal"><span class="pre"><span class="Identifier">readError</span></span></tt> for a version that raises a catchable error when the future has not failed.</p>
|
|
|
|
<a
|
|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L247"
|
|
class="link-seesrc" target="_blank">Source</a>
|
|
<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L247" class="link-seesrc" target="_blank" >Edit</a>
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|
|
|
</dd>
|
|
</div>
|
|
<div id="failed,FutureBase">
|
|
<dt><pre><span class="Keyword">func</span> <a href="#failed%2CFutureBase"><span class="Identifier">failed</span></a><span class="Other">(</span><span class="Identifier">future</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
|
|
<dd>
|
|
|
|
Determines whether <tt class="docutils literal"><span class="pre">future</span></tt> finished with an error.
|
|
<a
|
|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L214"
|
|
class="link-seesrc" target="_blank">Source</a>
|
|
<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L214" class="link-seesrc" target="_blank" >Edit</a>
|
|
|
|
</dd>
|
|
</div>
|
|
<div id="finished,FutureBase">
|
|
<dt><pre><span class="Keyword">func</span> <a href="#finished%2CFutureBase"><span class="Identifier">finished</span></a><span class="Other">(</span><span class="Identifier">future</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
|
|
<dd>
|
|
|
|
Determines whether <tt class="docutils literal"><span class="pre">future</span></tt> has finished, i.e. <tt class="docutils literal"><span class="pre">future</span></tt> state changed from state <tt class="docutils literal"><span class="pre">Pending</span></tt> to one of the states (<tt class="docutils literal"><span class="pre">Finished</span></tt>, <tt class="docutils literal"><span class="pre">Cancelled</span></tt>, <tt class="docutils literal"><span class="pre">Failed</span></tt>).
|
|
<a
|
|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L204"
|
|
class="link-seesrc" target="_blank">Source</a>
|
|
<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L204" class="link-seesrc" target="_blank" >Edit</a>
|
|
|
|
</dd>
|
|
</div>
|
|
<div id="flags,FutureBase">
|
|
<dt><pre><span class="Keyword">func</span> <a href="#flags%2CFutureBase"><span class="Identifier">flags</span></a><span class="Other">(</span><span class="Identifier">future</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a><span class="Other">)</span><span class="Other">:</span> <a href="futures.html#FutureFlags"><span class="Identifier">FutureFlags</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
|
|
<dd>
|
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|
|
|
|
<a
|
|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L201"
|
|
class="link-seesrc" target="_blank">Source</a>
|
|
<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L201" class="link-seesrc" target="_blank" >Edit</a>
|
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|
|
</dd>
|
|
</div>
|
|
<div id="internalInitFutureBase,FutureBase,ptr.SrcLoc,FutureState,FutureFlags">
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<dt><pre><span class="Keyword">proc</span> <a href="#internalInitFutureBase%2CFutureBase%2Cptr.SrcLoc%2CFutureState%2CFutureFlags"><span class="Identifier">internalInitFutureBase</span></a><span class="Other">(</span><span class="Identifier">fut</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a><span class="Other">;</span> <span class="Identifier">loc</span><span class="Other">:</span> <span class="Keyword">ptr</span> <a href="srcloc.html#SrcLoc"><span class="Identifier">SrcLoc</span></a><span class="Other">;</span>
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<span class="Identifier">state</span><span class="Other">:</span> <a href="futures.html#FutureState"><span class="Identifier">FutureState</span></a><span class="Other">;</span> <span class="Identifier">flags</span><span class="Other">:</span> <a href="futures.html#FutureFlags"><span class="Identifier">FutureFlags</span></a><span class="Other">)</span> {.
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<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
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<dd>
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L115"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L115" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="location,FutureBase">
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<dt><pre><span class="Keyword">func</span> <a href="#location%2CFutureBase"><span class="Identifier">location</span></a><span class="Other">(</span><span class="Identifier">future</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">array</span><span class="Other">[</span><span class="Identifier">LocationKind</span><span class="Other">,</span> <span class="Keyword">ptr</span> <a href="srcloc.html#SrcLoc"><span class="Identifier">SrcLoc</span></a><span class="Other">]</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span>
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<span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
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<dd>
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L222"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L222" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="state,FutureBase">
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<dt><pre><span class="Keyword">func</span> <a href="#state%2CFutureBase"><span class="Identifier">state</span></a><span class="Other">(</span><span class="Identifier">future</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a><span class="Other">)</span><span class="Other">:</span> <a href="futures.html#FutureState"><span class="Identifier">FutureState</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
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<dd>
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L198"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L198" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="value,Future[void]">
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<dt><pre><span class="Keyword">func</span> <a href="#value%2CFuture%5Bvoid%5D"><span class="Identifier">value</span></a><span class="Other">(</span><span class="Identifier">future</span><span class="Other">:</span> <a href="futures.html#Future"><span class="Identifier">Future</span></a><span class="Other">[</span><span class="Identifier">void</span><span class="Other">]</span><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
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<dd>
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<p>Return the value in a completed future - raises Defect when <tt class="docutils literal"><span class="pre"><span class="Identifier">fut</span><span class="Operator">.</span><span class="Identifier">completed</span><span class="Punctuation">(</span><span class="Punctuation">)</span></span></tt> is <tt class="docutils literal"><span class="pre"><span class="Identifier">false</span></span></tt>.</p>
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<p>See <tt class="docutils literal"><span class="pre"><span class="Identifier">read</span></span></tt> for a version that raises a catchable error when future has not completed.</p>
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L237"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L237" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="value,Future[T: not void]">
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<dt><pre><span class="Keyword">func</span> <a href="#value%2CFuture%5BT%3A%20not%20void%5D"><span class="Identifier">value</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <span class="Keyword">not</span> <span class="Identifier">void</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">future</span><span class="Other">:</span> <a href="futures.html#Future"><span class="Identifier">Future</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">lent</span> <span class="Identifier">T</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
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<dd>
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<p>Return the value in a completed future - raises Defect when <tt class="docutils literal"><span class="pre"><span class="Identifier">fut</span><span class="Operator">.</span><span class="Identifier">completed</span><span class="Punctuation">(</span><span class="Punctuation">)</span></span></tt> is <tt class="docutils literal"><span class="pre"><span class="Identifier">false</span></span></tt>.</p>
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<p>See <tt class="docutils literal"><span class="pre"><span class="Identifier">read</span></span></tt> for a version that raises a catchable error when future has not completed.</p>
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L225"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L225" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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</dl></div>
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<div class="section" id="18">
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<h1><a class="toc-backref" href="#18">Templates</a></h1>
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<dl class="item">
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<div id="completed.t,typeFuture,static[string]">
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<dt><pre><span class="Keyword">template</span> <a href="#completed.t%2CtypeFuture%2Cstatic%5Bstring%5D"><span class="Identifier">completed</span></a><span class="Other">(</span><span class="Identifier">F</span><span class="Other">:</span> <span class="Keyword">type</span> <span class="Identifier">Future</span><span class="Other">;</span> <span class="Identifier">fromProc</span><span class="Other">:</span> <span class="Identifier">static</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span> <span class="Other">=</span> <span class="StringLit">""</span><span class="Other">)</span><span class="Other">:</span> <a href="futures.html#Future"><span class="Identifier">Future</span></a><span class="Other">[</span><span class="Identifier">void</span><span class="Other">]</span></pre></dt>
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<dd>
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Create a new completed future
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L168"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L168" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="completed.t,typeFuture,T,static[string]">
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<dt><pre><span class="Keyword">template</span> <a href="#completed.t%2CtypeFuture%2CT%2Cstatic%5Bstring%5D"><span class="Identifier">completed</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <span class="Keyword">not</span> <span class="Identifier">void</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">F</span><span class="Other">:</span> <span class="Keyword">type</span> <span class="Identifier">Future</span><span class="Other">;</span> <span class="Identifier">valueParam</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">;</span>
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<span class="Identifier">fromProc</span><span class="Other">:</span> <span class="Identifier">static</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span> <span class="Other">=</span> <span class="StringLit">""</span><span class="Other">)</span><span class="Other">:</span> <a href="futures.html#Future"><span class="Identifier">Future</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span></pre></dt>
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<dd>
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Create a new completed future
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L176"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L176" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="failed.t,typeFuture[T],ref.CatchableError,static[string]">
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<dt><pre><span class="Keyword">template</span> <a href="#failed.t%2CtypeFuture%5BT%5D%2Cref.CatchableError%2Cstatic%5Bstring%5D"><span class="Identifier">failed</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">F</span><span class="Other">:</span> <span class="Keyword">type</span> <a href="futures.html#Future"><span class="Identifier">Future</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">errorParam</span><span class="Other">:</span> <span class="Keyword">ref</span> <span class="Identifier">CatchableError</span><span class="Other">;</span>
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<span class="Identifier">fromProc</span><span class="Other">:</span> <span class="Identifier">static</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span> <span class="Other">=</span> <span class="StringLit">""</span><span class="Other">)</span><span class="Other">:</span> <a href="futures.html#Future"><span class="Identifier">Future</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span></pre></dt>
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<dd>
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Create a new failed future
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|
<a
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|
href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L184"
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|
class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L184" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="id.t,FutureBase">
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<dt><pre><span class="Keyword">template</span> <a href="#id.t%2CFutureBase"><span class="Identifier">id</span></a><span class="Other">(</span><span class="Identifier">fut</span><span class="Other">:</span> <a href="futures.html#FutureBase"><span class="Identifier">FutureBase</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">uint</span></pre></dt>
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<dd>
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L102"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L102" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="init.t,typeFuture[T],static[string]">
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|
<dt><pre><span class="Keyword">template</span> <a href="#init.t%2CtypeFuture%5BT%5D%2Cstatic%5Bstring%5D"><span class="Identifier">init</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">F</span><span class="Other">:</span> <span class="Keyword">type</span> <a href="futures.html#Future"><span class="Identifier">Future</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">fromProc</span><span class="Other">:</span> <span class="Identifier">static</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span> <span class="Other">=</span> <span class="StringLit">""</span><span class="Other">)</span><span class="Other">:</span> <a href="futures.html#Future"><span class="Identifier">Future</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span></pre></dt>
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<dd>
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<p>Creates a new pending future.</p>
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<p>Specifying <tt class="docutils literal"><span class="pre">fromProc</span></tt>, which is a string specifying the name of the proc that this future belongs to, is a good habit as it helps with debugging.</p>
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L148"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L148" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="init.t,typeFuture[T],static[string],static[FutureFlags]">
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<dt><pre><span class="Keyword">template</span> <a href="#init.t%2CtypeFuture%5BT%5D%2Cstatic%5Bstring%5D%2Cstatic%5BFutureFlags%5D"><span class="Identifier">init</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">F</span><span class="Other">:</span> <span class="Keyword">type</span> <a href="futures.html#Future"><span class="Identifier">Future</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">fromProc</span><span class="Other">:</span> <span class="Identifier">static</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span> <span class="Other">=</span> <span class="StringLit">""</span><span class="Other">;</span>
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<span class="Identifier">flags</span><span class="Other">:</span> <span class="Identifier">static</span><span class="Other">[</span><a href="futures.html#FutureFlags"><span class="Identifier">FutureFlags</span></a><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="futures.html#Future"><span class="Identifier">Future</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span></pre></dt>
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<dd>
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<p>Creates a new pending future.</p>
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|
<p>Specifying <tt class="docutils literal"><span class="pre">fromProc</span></tt>, which is a string specifying the name of the proc that this future belongs to, is a good habit as it helps with debugging.</p>
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<a
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href="https://github.com/status-im/nim-chronos/tree/master/chronos/futures.nim#L157"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-chronos/edit/devel/chronos/futures.nim#L157" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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</dl></div>
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<div class="section" id="19">
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<h1><a class="toc-backref" href="#19">Exports</a></h1>
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<dl class="item">
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<a href="srcloc.html#$,ptr.SrcLoc"><span class="Identifier">$</span></a>, <a href="srcloc.html#SrcLoc"><span class="Identifier">SrcLoc</span></a>, <a href="srcloc.html#getSrcLocation.t,staticstring"><span class="Identifier">getSrcLocation</span></a>
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</dl></div>
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</div>
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</div>
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<div class="row">
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<div class="twelve-columns footer">
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<span class="nim-sprite"></span>
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<br/>
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<small style="color: var(--hint);">Made with Nim. Generated: 2024-11-28 08:22:46 UTC</small>
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</div>
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</div>
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</div>
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</div>
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</body>
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