| #region Copyright notice and license |
| |
| // Copyright 2015 gRPC authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #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(20*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; |
| } |
| } |
| } |