86 lines
1.2 KiB
Text
86 lines
1.2 KiB
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{PriorityQueue}
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Priority queue data structure@section{categories}
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Collections>Ordered
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@section{description}
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PriorityQueue implements a priority queue data structure, which is used to build schedulers. It allows you to put in items at some arbitrary time and pop them in
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time order.
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@section{INSTANCEMETHODS}
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@section{private}
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prInternalArray
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@section{method}
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put
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Puts the item in the queue at the given time.
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@section{method}
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topPriority
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Returns the time of the earliest item in the queue.
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@section{method}
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pop
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Returns the earliest item in the queue.
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@section{method}
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clear
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Empty the queue.
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@section{method}
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isEmpty
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Return a link::Classes/Boolean:: whether the queue is empty.
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@section{method}
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notEmpty
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Return a link::Classes/Boolean:: whether the queue is not empty.
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@section{method}
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removeValue
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Remove all instances of value from the queue.
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@section{EXAMPLES}
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@racketblock[
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(
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var p;
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p = PriorityQueue.new;
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p.put(0.1, \a);
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p.put(2.0, \b);
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p.put(0.5, \c);
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p.put(0.2, \d);
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p.put(1.0, \e);
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while ({ p.notEmpty },{
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[p.topPriority, p.pop].postln;
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});
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p.pop.postln;
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p.pop.postln;
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p.pop.postln;
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)
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[ 0.1, a ]
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[ 0.2, d ]
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[ 0.5, c ]
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[ 1, e ]
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[ 2, b ]
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nil
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nil
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nil
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::
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]
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