PosixWatchdog.cs

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using System;
using System.Runtime.Versioning;
using System.Threading;
using System.Threading.Tasks;
 
using Microsoft.Extensions.Logging;
 
using Tgstation.Server.Api.Models.Internal;
using Tgstation.Server.Host.Components.Chat;
using Tgstation.Server.Host.Components.Deployment;
using Tgstation.Server.Host.Components.Deployment.Remote;
using Tgstation.Server.Host.Components.Events;
using Tgstation.Server.Host.Components.Session;
using Tgstation.Server.Host.Configuration;
using Tgstation.Server.Host.Core;
using Tgstation.Server.Host.IO;
using Tgstation.Server.Host.Jobs;
using Tgstation.Server.Host.Utils;
 
namespace Tgstation.Server.Host.Components.Watchdog
{
    [UnsupportedOSPlatform("windows")]
    sealed class PosixWatchdog : AdvancedWatchdog
    {
        readonly GeneralConfiguration generalConfiguration;
 
        public PosixWatchdog(
            IChatManager chat,
            ISessionControllerFactory sessionControllerFactory,
            IDmbFactory dmbFactory,
            ISessionPersistor sessionPersistor,
            IJobManager jobManager,
            IServerControl serverControl,
            IAsyncDelayer asyncDelayer,
            IIOManager diagnosticsIOManager,
            IEventConsumer eventConsumer,
            IRemoteDeploymentManagerFactory remoteDeploymentManagerFactory,
            IIOManager gameIOManager,
            IFilesystemLinkFactory linkFactory,
            ILogger<PosixWatchdog> logger,
            DreamDaemonLaunchParameters initialLaunchParameters,
            Api.Models.Instance instance,
            GeneralConfiguration generalConfiguration,
            bool autoStart)
            : base(
                  chat,
                  sessionControllerFactory,
                  dmbFactory,
                  sessionPersistor,
                  jobManager,
                  serverControl,
                  asyncDelayer,
                  diagnosticsIOManager,
                  eventConsumer,
                  remoteDeploymentManagerFactory,
                  gameIOManager,
                  linkFactory,
                  logger,
                  initialLaunchParameters,
                  instance,
                  autoStart)
        {
            this.generalConfiguration = generalConfiguration ?? throw new ArgumentNullException(nameof(generalConfiguration));
        }
 
        protected override ValueTask ApplyInitialDmb(CancellationToken cancellationToken)
            => ValueTask.CompletedTask; // not necessary to hold initial .dmb on Linux because of based inode deletes
 
        protected override SwappableDmbProvider CreateSwappableDmbProvider(IDmbProvider dmbProvider)
            => new HardLinkDmbProvider(dmbProvider, GameIOManager, LinkFactory, Logger, generalConfiguration, ActiveLaunchParameters.SecurityLevel!.Value);
    }
}