深入理解 OWIN 中的 Host 和 Server
using System;using System.IO;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Framework.ConfigurationModel;
using Microsoft.Framework.DependencyInjection;
using Microsoft.Framework.DependencyInjection.Fallback;
using Microsoft.Framework.Logging;
using Microsoft.Framework.Runtime;
namespace Microsoft.AspNet.Hosting
{
public class Program
{
private const string HostingIniFile = "Microsoft.AspNet.Hosting.ini";
private readonly IServiceProvider _serviceProvider;
public Program(IServiceProvider serviceProvider)
{
_serviceProvider = serviceProvider;
}
public void Main(string[] args)
{
var config = new Configuration();
if (File.Exists(HostingIniFile))
{
config.AddIniFile(HostingIniFile);
}
config.AddEnvironmentVariables();
config.AddCommandLine(args);
var services = HostingServices.Create(_serviceProvider, config)
.BuildServiceProvider();
var appEnv = services.GetRequiredService();
var hostingEnv = services.GetRequiredService();
var context = new HostingContext()
{
Services = services,
Configuration = config,
ServerName = config.Get("server"), // TODO: Key names
ApplicationName = config.Get("app")// TODO: Key names
?? appEnv.ApplicationName,
EnvironmentName = hostingEnv.EnvironmentName,
};
var engine = services.GetRequiredService();
var loggerFactory = services.GetRequiredService();
var appShutdownService = _serviceProvider.GetRequiredService();
var shutdownHandle = new ManualResetEvent(false);
var serverShutdown = engine.Start(context);
appShutdownService.ShutdownRequested.Register(() =>
{
try
{
serverShutdown.Dispose();
}
catch (Exception ex)
{
var logger = loggerFactory.Create();
logger.WriteError("TODO: Dispose threw an exception", ex);
}
shutdownHandle.Set();
});
var ignored = Task.Run(() =>
{
Console.WriteLine("Started");
Console.ReadLine();
appShutdownService.RequestShutdown();
});
shutdownHandle.WaitOne();
}
}
}
页:
[1]