/// <summary>
/// Returns a Task that completes when shutdown is triggered via the given token, Ctrl+C or SIGTERM.
/// </summary>
/// <param name="host">The running <see cref="T:Microsoft.AspNetCore.Hosting.IWebHost" />.</param>
/// <param name="token">The token to trigger shutdown.</param>
/// <param name="runSuccessCallback">启动成功的回调函数(Run the successful callback)</param>
public static async Task WaitForShutdownAsync(this IWebHost host, CancellationToken token = default(CancellationToken), Action runSuccessCallback = null)
{
ManualResetEventSlim done = new ManualResetEventSlim(false);
using (CancellationTokenSource cts = CancellationTokenSource.CreateLinkedTokenSource(token))
{
EWebHostExtensions.AttachCtrlcSigtermShutdown(cts, done, string.Empty);
await host.WaitForTokenShutdownAsync(cts.Token, runSuccessCallback);
done.Set();
}
}
/// <summary>
/// Runs a web application and returns a Task that only completes when the token is triggered or shutdown is triggered.
/// </summary>
/// <param name="host">The <see cref="T:Microsoft.AspNetCore.Hosting.IWebHost" /> to run.</param>
/// <param name="token">The token to trigger shutdown.</param>
/// <param name="runSuccessCallback">启动成功的回调函数(Run the successful callback)</param>
public static async Task RunAsync(this IWebHost host, CancellationToken token = default(CancellationToken), Action runSuccessCallback = null)
{
if (token.CanBeCanceled)
{
await host.RunAsync(token, (string)null, runSuccessCallback);
}
else
{
ManualResetEventSlim done = new ManualResetEventSlim(false);
using (CancellationTokenSource cts = new CancellationTokenSource())
{
EWebHostExtensions.AttachCtrlcSigtermShutdown(cts, done, host.Services.GetRequiredService <WebHostOptions>().SuppressStatusMessages ? string.Empty : "Application is shutting down...");
await host.RunAsync(
cts.Token,
"Application started. Press Ctrl+C to shut down.",
runSuccessCallback);
done.Set();
}
}
}
