C#內存流傳輸（內存共享）

創建流，控制檯實現

---

using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using System.IO.MemoryMappedFiles;
using System.Threading;

namespace MemoryMapped
{
    class Program
    {

        static void Main(string[] args)
        {
            string mapName = "mapTest";
            long capacity = 104857600;
            string path = @"C:\Users\Administrator\Desktop\map.txt";

            if (!File.Exists(path))
            {
                Console.WriteLine("未查找到文件： " + path);
            }
            else
            {
                #region 文件傳輸

                MemoryMappedFile memory = MemoryMappedFile.CreateOrOpen(mapName, capacity, MemoryMappedFileAccess.ReadWrite);
                MemoryMappedViewAccessor viewAccessor = memory.CreateViewAccessor(0, capacity);
                FileStream file = new FileStream(path, FileMode.Open);
                long _length = file.Length;
                byte[] data = new byte[_length];
                Console.WriteLine("_length：" + _length);
                file.Read(data, 0, data.Length);
                file.Close();
                viewAccessor.Write(0, data.Length);
                viewAccessor.WriteArray<byte>(4, data, 0, data.Length);
                Console.ReadLine();

                #endregion
            }

        }
    }
}

 

接收流，unity實現

---

 

using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.IO.MemoryMappedFiles;
using UnityEngine;

public class MemoryMapped : MonoBehaviour {

    public string mapName = "mapTest";

    MemoryMappedFile mappedFile;
    MemoryMappedViewAccessor viewAccessor;

    void Start ()
    {
        _MemoryMapped();
    }
	
    void _MemoryMapped()
    {
        long _long = 104857600; //傳輸的限制大小
        string path = @"C:\Users\Administrator\Desktop\NewMap.txt";    //接收到的文件保存路徑
        try
        {
            mappedFile = MemoryMappedFile.OpenExisting(mapName);   //搜索指定的內存流
        }
        catch (System.Exception ex)
        {
            Debug.LogError("[MemoryMappedFile.OpenExisting] :" + ex.Message);
        }
        viewAccessor = mappedFile.CreateViewAccessor(0, _long);   //創建流接收器
        int strLength = viewAccessor.ReadInt32(0);
        byte[] charsInMMf = new byte[strLength];
        viewAccessor.ReadArray<byte>(4, charsInMMf, 0, strLength);
        Debug.Log(charsInMMf.Length);
        FileStream stream = new FileStream(path, FileMode.Create);  //保存至路徑path
        stream.Write(charsInMMf, 0, strLength);
        stream.Close();
    }

}