From c0261e1ce3211955cb4b5df3a46d6be8eded5e9d Mon Sep 17 00:00:00 2001
From: Argo Zhang <argo@163.com>
Date: Tue, 13 Aug 2019 14:54:26 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E5=A2=9E=E5=8A=A0GC=E6=A3=80=E6=9F=A5?=
 =?UTF-8?q?=E5=99=A8?=
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---
 Bootstrap.Admin/HealthChecks/GCHealthCheck.cs | 38 +++++++++++++++++++
 .../HealthChecksBuilderExtensions.cs          |  1 +
 2 files changed, 39 insertions(+)
 create mode 100644 Bootstrap.Admin/HealthChecks/GCHealthCheck.cs

diff --git a/Bootstrap.Admin/HealthChecks/GCHealthCheck.cs b/Bootstrap.Admin/HealthChecks/GCHealthCheck.cs
new file mode 100644
index 00000000..334755f2
--- /dev/null
+++ b/Bootstrap.Admin/HealthChecks/GCHealthCheck.cs
@@ -0,0 +1,38 @@
+using Microsoft.Extensions.Diagnostics.HealthChecks;
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Bootstrap.Admin.HealthChecks
+{
+    /// <summary>
+    /// 内存状态检查其
+    /// </summary>
+    public class GCHealthCheck : IHealthCheck
+    {
+        /// <summary>
+        /// 构造函数
+        /// </summary>
+        /// <param name="context"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public Task<HealthCheckResult> CheckHealthAsync(HealthCheckContext context, CancellationToken cancellationToken = default)
+        {
+            // Include GC information in the reported diagnostics.
+            var allocated = GC.GetTotalMemory(forceFullCollection: false);
+            var data = new Dictionary<string, object>()
+            {
+                { "AllocatedMBytes", allocated / 1024 / 1024 },
+                { "Gen0Collections", GC.CollectionCount(0) },
+                { "Gen1Collections", GC.CollectionCount(1) },
+                { "Gen2Collections", GC.CollectionCount(2) },
+            };
+
+            var status = (allocated < 100000) ?
+                HealthStatus.Healthy : HealthStatus.Unhealthy;
+
+            return Task.FromResult(new HealthCheckResult(status, data: data));
+        }
+    }
+}
diff --git a/Bootstrap.Admin/HealthChecks/HealthChecksBuilderExtensions.cs b/Bootstrap.Admin/HealthChecks/HealthChecksBuilderExtensions.cs
index f01887f9..5c0d0728 100644
--- a/Bootstrap.Admin/HealthChecks/HealthChecksBuilderExtensions.cs
+++ b/Bootstrap.Admin/HealthChecks/HealthChecksBuilderExtensions.cs
@@ -16,6 +16,7 @@ namespace Microsoft.Extensions.DependencyInjection
         {
             builder.AddCheck<DBHealthCheck>("db");
             builder.AddCheck<FileHealCheck>("file");
+            builder.AddCheck<GCHealthCheck>("gc");
             return builder;
         }
     }