Initial checkin of gRPC to third_party/

third_party/grpc/src/csharp/Grpc.Core/Profiling/ProfilerEntry.cs

 #region Copyright notice and license
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc.  All rights reserved.
-// https://developers.google.com/protocol-buffers/
+
+// 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
 
-namespace Google.Protobuf.Reflection
+using System;
+using System.IO;
+using System.Threading;
+using Grpc.Core.Internal;
+
+namespace Grpc.Core.Profiling
 {
-    /// <summary>
-    /// Represents a package in the symbol table.  We use PackageDescriptors
-    /// just as placeholders so that someone cannot define, say, a message type
-    /// that has the same name as an existing package.
-    /// </summary>
-    internal sealed class PackageDescriptor : IDescriptor
+    internal struct ProfilerEntry
     {
-        private readonly string name;
-        private readonly string fullName;
-        private readonly FileDescriptor file;
-
-        internal PackageDescriptor(string name, string fullName, FileDescriptor file)
+        public enum Type
         {
-            this.file = file;
-            this.fullName = fullName;
-            this.name = name;
+            BEGIN,
+            END,
+            MARK
         }
 
-        public string Name
+        public ProfilerEntry(Timespec timespec, Type type, string tag)
         {
-            get { return name; }
+            this.timespec = timespec;
+            this.type = type;
+            this.tag = tag;
         }
 
-        public string FullName
+        public Timespec timespec;
+        public Type type;
+        public string tag;
+
+        public override string ToString()
         {
-            get { return fullName; }
+            // mimic the output format used by C core.
+            return string.Format(
+                "{{\"t\": {0}.{1}, \"thd\":\"unknown\", \"type\": \"{2}\", \"tag\": \"{3}\", " +
+                "\"file\": \"unknown\", \"line\": 0, \"imp\": 0}}",
+                timespec.TimevalSeconds, timespec.TimevalNanos.ToString("D9"),
+                GetTypeAbbreviation(type), tag);
         }
 
-        public FileDescriptor File
+        internal static string GetTypeAbbreviation(Type type)
         {
-            get { return file; }
+            switch (type)
+            {
+                case Type.BEGIN:
+                    return "{";
+
+                case Type.END:
+                    return "}";
+                
+                case Type.MARK:
+                    return ".";
+                default:
+                    throw new ArgumentException("Unknown type");
+            }
         }
     }
-}
+}