6 // Jérémie "Garuma" Laval <jeremie.laval@gmail.com>
8 // Copyright (c) 2010 Jérémie "Garuma" Laval
10 // Permission is hereby granted, free of charge, to any person obtaining a copy
11 // of this software and associated documentation files (the "Software"), to deal
12 // in the Software without restriction, including without limitation the rights
13 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 // copies of the Software, and to permit persons to whom the Software is
15 // furnished to do so, subject to the following conditions:
17 // The above copyright notice and this permission notice shall be included in
18 // all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
29 using System.Threading;
30 using System.Collections.Generic;
34 // The first four elements correspond to the public operator With*
35 // Last CancellationToken parameter is used internally for ImplementerToken
36 using OptionsList = Tuple<ParallelMergeOptions?, ParallelExecutionMode?, CancellationToken?, int, CancellationTokenSource>;
38 internal class QueryOptionNode<T> : QueryChildNode<T, T>
41 public QueryOptionNode (QueryBaseNode<T> parent)
47 internal virtual OptionsList GetOptions ()
49 return new OptionsList (null, null, null, -1, null);
52 internal override IList<IEnumerable<T>> GetEnumerables (QueryOptions options)
54 return Parent.GetEnumerables (options);
57 internal override IList<IEnumerable<KeyValuePair<long, T>>> GetOrderedEnumerables (QueryOptions options)
59 return Parent.GetOrderedEnumerables (options);
62 internal override IEnumerable<T> GetSequential ()
64 return Parent.GetSequential ();
67 public override void Visit (INodeVisitor visitor)
69 visitor.Visit<T> (this);
73 internal class ParallelExecutionModeNode<T> : QueryOptionNode<T>
75 ParallelExecutionMode mode;
77 internal ParallelExecutionModeNode (ParallelExecutionMode mode, QueryBaseNode<T> parent)
83 internal override OptionsList GetOptions ()
85 return new OptionsList (null, mode, null, -1, null);
90 internal class ParallelMergeOptionsNode<T> : QueryOptionNode<T>
92 ParallelMergeOptions opts;
94 internal ParallelMergeOptionsNode (ParallelMergeOptions opts, QueryBaseNode<T> parent)
100 internal override OptionsList GetOptions ()
102 return new OptionsList (opts, null, null, -1, null);
107 internal class CancellationTokenNode<T> : QueryOptionNode<T>
109 CancellationToken token;
111 internal CancellationTokenNode (CancellationToken token, QueryBaseNode<T> parent)
117 internal override OptionsList GetOptions ()
119 return new OptionsList (null, null, token, -1, null);
123 internal class DegreeOfParallelismNode<T> : QueryOptionNode<T>
125 int degreeParallelism;
127 internal DegreeOfParallelismNode (int degreeParallelism, QueryBaseNode<T> parent)
130 this.degreeParallelism = degreeParallelism;
133 internal override OptionsList GetOptions ()
135 return new OptionsList (null, null, null, degreeParallelism, null);
139 internal class ImplementerTokenNode<T> : QueryOptionNode<T>
141 CancellationTokenSource source;
143 internal ImplementerTokenNode (CancellationTokenSource token, QueryBaseNode<T> parent)
149 internal override OptionsList GetOptions ()
151 return new OptionsList (null, null, null, -1, source);