初始化

2025-11-21 08:48:01 +08:00
commit b4d684a84c
202 changed files with 28585 additions and 0 deletions
--- a/MyFaster/Program.cs
+++ b/MyFaster/Program.cs
@@ -0,0 +1,108 @@
+using System.Diagnostics;
+using System.Net;
+using FASTER.core;
+using MemoryPack;
+
+namespace MyFaster
+{
+    [MemoryPackable()]
+    public partial class MyData
+    {
+        public string? FirstName { get; set; }
+        public string? LastName { get; set; }
+        public int Age { get; set; }
+        public string? DetailData { get; set; }
+    }
+    internal class Program
+    {
+        public static byte[] Serialize<T>(T obj)
+        {
+            return MemoryPackSerializer.Serialize(obj);
+        }
+
+        public static T Deserialize<T>(byte[] data)
+        {
+            return MemoryPackSerializer.Deserialize<T>(data);
+        }
+
+        public class MyValueSerializer1 : BinaryObjectSerializer<MyData>
+        {
+            public override void Serialize(ref MyData value)
+            {
+                writer.Write(value.FirstName);
+                writer.Write(value.LastName);
+                writer.Write(value.Age);
+                writer.Write(value.DetailData);
+            }
+
+            public override void Deserialize(out MyData value)
+            {
+                value = new MyData
+                {
+                    FirstName = reader.ReadString(),
+                    LastName = reader.ReadString(),
+                    Age = reader.ReadInt32(),
+                    DetailData = reader.ReadString()
+                };
+            }
+        }
+
+        public class MyValueSerializer : BinaryObjectSerializer<MyData>
+        {
+            public override void Serialize(ref MyData value)
+            {
+                //writer.Write(IPAddress.HostToNetworkOrder(Q.Length)); // 4字节长度头
+                var Q = MemoryPackSerializer.Serialize(value);
+                writer.Write(Q.Length); // 4字节长度头
+                writer.Write(Q);
+            }
+
+            public override void Deserialize(out MyData value)
+            {
+                int length = reader.ReadInt32(); // 读长度头
+                byte[] buffer = reader.ReadBytes(length); // 读数据体
+                value = MemoryPackSerializer.Deserialize<MyData>(buffer); // 反序列化
+            }
+        }
+
+        static async Task Main(string[] args)
+        {
+            using var settings = new FasterKVSettings<string, MyData>()
+            {
+                LogDevice = Devices.CreateLogDevice("c:/mytemp/log"),       // 元数据日志
+                ObjectLogDevice = Devices.CreateLogDevice("c:/mytemp/obj"),  // 对象数据日志
+                TryRecoverLatest = true,
+                ValueSerializer = () => new MyValueSerializer()
+            };
+            using var store = new FasterKV<string, MyData>(settings);
+            using var session = store.NewSession(new SimpleFunctions<string, MyData>());
+
+            MyData mydata0 = new MyData() { FirstName = "1", LastName = "fdfdf", DetailData = "detail1" };
+            MyData mydata1 = new MyData() { FirstName = "1", LastName = "fdfdf", DetailData = "detail1" };
+            MyData mydata2 = new MyData() { FirstName = "1", LastName = "fdfdf", DetailData = "detail1" };
+
+            string mma0 = "a";
+            string mma1 = "b";
+            string mma2 = "c";
+
+            session.Upsert(ref mma0, ref mydata0);
+            session.Upsert(ref mma1, ref mydata1);
+            session.Upsert(ref mma2, ref mydata2);
+
+            session.CompletePending(true);
+            // 创建增量检查点（性能更好）
+            await store.TakeHybridLogCheckpointAsync(CheckpointType.FoldOver);
+
+            // 方法1：完整检查点（推荐）
+            await store.TakeFullCheckpointAsync(CheckpointType.Snapshot);
+
+            //完整检查点
+            await store.TakeFullCheckpointAsync(CheckpointType.FoldOver);
+
+            MyData output = null;
+            var status = session.Read(ref mma0, ref output);
+
+            Console.WriteLine("Hello, World!");
+        }
+    }
+}