135 lines
3.9 KiB
C#
135 lines
3.9 KiB
C#
#region Copyright notice and license
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// Copyright 2015-2016, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#endregion
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using System;
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using System.IO;
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using System.Threading;
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using Grpc.Core.Internal;
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namespace Grpc.Core.Profiling
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{
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internal static class Profilers
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{
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static readonly NopProfiler DefaultProfiler = new NopProfiler();
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static readonly ThreadLocal<IProfiler> profilers = new ThreadLocal<IProfiler>();
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public static IProfiler ForCurrentThread()
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{
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return profilers.Value ?? DefaultProfiler;
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}
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public static void SetForCurrentThread(IProfiler profiler)
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{
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profilers.Value = profiler;
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}
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public static ProfilerScope NewScope(this IProfiler profiler, string tag)
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{
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return new ProfilerScope(profiler, tag);
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}
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}
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internal class NopProfiler : IProfiler
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{
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public void Begin(string tag)
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{
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}
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public void End(string tag)
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{
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}
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public void Mark(string tag)
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{
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}
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}
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// Profiler using Timespec.PreciseNow
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internal class BasicProfiler : IProfiler
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{
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ProfilerEntry[] entries;
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int count;
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public BasicProfiler() : this(1024*1024)
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{
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}
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public BasicProfiler(int capacity)
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{
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this.entries = new ProfilerEntry[capacity];
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}
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public void Begin(string tag)
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{
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AddEntry(new ProfilerEntry(Timespec.PreciseNow, ProfilerEntry.Type.BEGIN, tag));
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}
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public void End(string tag)
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{
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AddEntry(new ProfilerEntry(Timespec.PreciseNow, ProfilerEntry.Type.END, tag));
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}
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public void Mark(string tag)
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{
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AddEntry(new ProfilerEntry(Timespec.PreciseNow, ProfilerEntry.Type.MARK, tag));
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}
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public void Reset()
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{
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count = 0;
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}
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public void Dump(string filepath)
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{
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using (var stream = File.CreateText(filepath))
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{
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Dump(stream);
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}
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}
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public void Dump(TextWriter stream)
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{
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for (int i = 0; i < count; i++)
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{
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var entry = entries[i];
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stream.WriteLine(entry.ToString());
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}
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}
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// NOT THREADSAFE!
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void AddEntry(ProfilerEntry entry) {
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entries[count++] = entry;
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}
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}
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}
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