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Csharp parallel (#2443)
* [csharp/en] - Attempts to address issue #1064 by using a different parallel example.
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@ -547,28 +547,22 @@ on a new line! ""Wow!"", the masses cried";
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// PARALLEL FRAMEWORK
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// PARALLEL FRAMEWORK
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// http://blogs.msdn.com/b/csharpfaq/archive/2010/06/01/parallel-programming-in-net-framework-4-getting-started.aspx
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// http://blogs.msdn.com/b/csharpfaq/archive/2010/06/01/parallel-programming-in-net-framework-4-getting-started.aspx
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var websites = new string[] {
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"http://www.google.com", "http://www.reddit.com",
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"http://www.shaunmccarthy.com"
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};
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var responses = new Dictionary<string, string>();
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// Will spin up separate threads for each request, and join on them
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var words = new List<string> {"dog", "cat", "horse", "pony"};
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// before going to the next step!
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Parallel.ForEach(websites,
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Parallel.ForEach(words,
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new ParallelOptions() {MaxDegreeOfParallelism = 3}, // max of 3 threads
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new ParallelOptions() { MaxDegreeOfParallelism = 4 },
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website =>
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word =>
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{
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// Do something that takes a long time on the file
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using (var r = WebRequest.Create(new Uri(website)).GetResponse())
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{
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{
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responses[website] = r.ContentType;
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Console.WriteLine(word);
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}
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}
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});
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);
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// This won't happen till after all requests have been completed
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//Running this will produce different outputs
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foreach (var key in responses.Keys)
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//since each thread finishes at different times.
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Console.WriteLine("{0}:{1}", key, responses[key]);
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//Some example outputs are:
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//cat dog horse pony
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//dog horse pony cat
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// DYNAMIC OBJECTS (great for working with other languages)
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// DYNAMIC OBJECTS (great for working with other languages)
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dynamic student = new ExpandoObject();
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dynamic student = new ExpandoObject();
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