src/ServiceProfiler.EventPipe.Otel/Azure.Monitor.OpenTelemetry.Profiler/ProfilerBackgroundService.cs

// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.

using Microsoft.ApplicationInsights.Profiler.Shared.Services.Abstractions;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;

namespace Azure.Monitor.OpenTelemetry.Profiler;

internal class ProfilerBackgroundService : BackgroundService
{
    private readonly IServiceProfilerAgentBootstrap _bootstrap;
    private readonly ILogger<ProfilerBackgroundService> _logger;

    public ProfilerBackgroundService(
        IServiceProfilerAgentBootstrap bootstrap,
        ILogger<ProfilerBackgroundService> logger)
    {
        _bootstrap = bootstrap ?? throw new ArgumentNullException(nameof(bootstrap));
        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
    }

    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
    {
        _logger.LogDebug("Triggering Profiler bootstrap ...");
        // Reduce chance to block the startup of the host. Refer to https://github.com/dotnet/runtime/issues/36063 for more details.
        await Task.Yield();
        await _bootstrap.ActivateAsync(stoppingToken).ConfigureAwait(false);

        _logger.LogDebug("Profiler bootstrap finished.");
    }
}