| #region Copyright notice and license |
| |
| // Copyright 2015-2016, 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.IO; |
| using System.Threading; |
| using Grpc.Core.Internal; |
| |
| namespace Grpc.Core.Profiling |
| { |
| internal static class Profilers |
| { |
| static readonly NopProfiler DefaultProfiler = new NopProfiler(); |
| static readonly ThreadLocal<IProfiler> profilers = new ThreadLocal<IProfiler>(); |
| |
| public static IProfiler ForCurrentThread() |
| { |
| return profilers.Value ?? DefaultProfiler; |
| } |
| |
| public static void SetForCurrentThread(IProfiler profiler) |
| { |
| profilers.Value = profiler; |
| } |
| |
| public static ProfilerScope NewScope(this IProfiler profiler, string tag) |
| { |
| return new ProfilerScope(profiler, tag); |
| } |
| } |
| |
| internal class NopProfiler : IProfiler |
| { |
| public void Begin(string tag) |
| { |
| } |
| |
| public void End(string tag) |
| { |
| } |
| |
| public void Mark(string tag) |
| { |
| } |
| } |
| |
| // Profiler using Timespec.PreciseNow |
| internal class BasicProfiler : IProfiler |
| { |
| ProfilerEntry[] entries; |
| int count; |
| |
| public BasicProfiler() : this(1024*1024) |
| { |
| } |
| |
| public BasicProfiler(int capacity) |
| { |
| this.entries = new ProfilerEntry[capacity]; |
| } |
| |
| public void Begin(string tag) |
| { |
| AddEntry(new ProfilerEntry(Timespec.PreciseNow, ProfilerEntry.Type.BEGIN, tag)); |
| } |
| |
| public void End(string tag) |
| { |
| AddEntry(new ProfilerEntry(Timespec.PreciseNow, ProfilerEntry.Type.END, tag)); |
| } |
| |
| public void Mark(string tag) |
| { |
| AddEntry(new ProfilerEntry(Timespec.PreciseNow, ProfilerEntry.Type.MARK, tag)); |
| } |
| |
| public void Reset() |
| { |
| count = 0; |
| } |
| |
| public void Dump(string filepath) |
| { |
| using (var stream = File.CreateText(filepath)) |
| { |
| Dump(stream); |
| } |
| } |
| |
| public void Dump(TextWriter stream) |
| { |
| for (int i = 0; i < count; i++) |
| { |
| var entry = entries[i]; |
| stream.WriteLine(entry.ToString()); |
| } |
| } |
| |
| // NOT THREADSAFE! |
| void AddEntry(ProfilerEntry entry) { |
| entries[count++] = entry; |
| } |
| } |
| } |