diff options
author | 2015-06-09 22:57:45 -0700 | |
---|---|---|
committer | 2015-06-09 22:57:45 -0700 | |
commit | 7f79750bb585c2952b8cf29e323799feb4f82f62 (patch) | |
tree | d5887658de04191f890d9f343ab5cf18d5f2bb88 /src/csharp/Grpc.Core/Internal/CompletionRegistry.cs | |
parent | 97f1454fc5ccdfc57e2f1296a52f1f83037cfd78 (diff) | |
parent | 36092008c694ff701f5a6f6edeebd37efbe06012 (diff) |
Merge pull request #12 from jtattermusch/you-complete-me-csharp
C# shutdown take 2
Diffstat (limited to 'src/csharp/Grpc.Core/Internal/CompletionRegistry.cs')
-rw-r--r-- | src/csharp/Grpc.Core/Internal/CompletionRegistry.cs | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/csharp/Grpc.Core/Internal/CompletionRegistry.cs b/src/csharp/Grpc.Core/Internal/CompletionRegistry.cs new file mode 100644 index 0000000000..80f006ae50 --- /dev/null +++ b/src/csharp/Grpc.Core/Internal/CompletionRegistry.cs @@ -0,0 +1,89 @@ +#region Copyright notice and license + +// Copyright 2015, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#endregion + +using System; +using System.Collections.Concurrent; +using System.Collections.Generic; +using System.Runtime.InteropServices; +using Grpc.Core.Utils; + +namespace Grpc.Core.Internal +{ + internal delegate void OpCompletionDelegate(bool success); + + internal delegate void BatchCompletionDelegate(bool success, BatchContextSafeHandle ctx); + + internal class CompletionRegistry + { + readonly ConcurrentDictionary<IntPtr, OpCompletionDelegate> dict = new ConcurrentDictionary<IntPtr, OpCompletionDelegate>(); + + public void Register(IntPtr key, OpCompletionDelegate callback) + { + DebugStats.PendingBatchCompletions.Increment(); + Preconditions.CheckState(dict.TryAdd(key, callback)); + } + + public void RegisterBatchCompletion(BatchContextSafeHandle ctx, BatchCompletionDelegate callback) + { + OpCompletionDelegate opCallback = ((success) => HandleBatchCompletion(success, ctx, callback)); + Register(ctx.Handle, opCallback); + } + + public OpCompletionDelegate Extract(IntPtr key) + { + OpCompletionDelegate value; + Preconditions.CheckState(dict.TryRemove(key, out value)); + DebugStats.PendingBatchCompletions.Decrement(); + return value; + } + + private static void HandleBatchCompletion(bool success, BatchContextSafeHandle ctx, BatchCompletionDelegate callback) + { + try + { + callback(success, ctx); + } + catch (Exception e) + { + Console.WriteLine("Exception occured while invoking completion delegate: " + e); + } + finally + { + if (ctx != null) + { + ctx.Dispose(); + } + } + } + } +} |