内存映射文件 MemoryMappedFile

MemoryMappedFile

一、MemoryMappedFileService

using System;
using System.IO;
using System.IO.MemoryMappedFiles;
using System.Text;

namespace MemoryMappedFileService
{
    class Program
    {
        static void Main(string[] args)
        {
            MemoryMappedFile memoryAccessor = MemoryMappedFile.CreateNew("ProcessCommunicationAccessor", 500, MemoryMappedFileAccess.ReadWrite);
            using (var accessor = memoryAccessor.CreateViewAccessor())//获取映射文件对象的存储器
            {
                var buffer = Encoding.UTF8.GetBytes("Accessor");
                accessor.WriteArray(0, buffer, 0, buffer.Length);//将给定的值写入此视图中
                Console.WriteLine(Environment.NewLine + "Accessor Send Val:Accessor");
            }
            MemoryMappedFile memoryStream = MemoryMappedFile.CreateNew("ProcessCommunicationStream", 500, MemoryMappedFileAccess.ReadWrite);//创建流的映射文件对象
            using (var stream = memoryStream.CreateViewStream())//获取映射文件的流
            {
                var buffer = Encoding.UTF8.GetBytes("Stream");
                stream.Write(buffer, 0, buffer.Length);//将给定的值写入此内存流中
                Console.WriteLine(Environment.NewLine + "Accessor Send Val:Stream");
            }
            Console.ReadLine();
        }

        
    }
}

　　

二、MemoryMappedFileClient

using System;
using System.IO;
using System.IO.MemoryMappedFiles;
using System.Text;

namespace MemoryMappedFileClient
{
    class Program
    {
        static void Main(string[] args)
        {
            System.Threading.Thread.Sleep(1000);
            MemoryMappedFile memoryAccessor = MemoryMappedFile.OpenExisting("ProcessCommunicationAccessor");//获取服务端定义的ProcessCommunicationAccessor名称的内存映射文件然后调用ReadArray方法读取到服务端写入的数据
            using (var accessor = memoryAccessor.CreateViewAccessor())
            {
                var buffer = new byte[999];
                var read = accessor.ReadArray(0, buffer, 0, buffer.Length);
                var str = Encoding.UTF8.GetString(buffer);
                Console.WriteLine(Environment.NewLine + "Accessor Read Val:" + str.ToString());
            }
            MemoryMappedFile memoryStream = MemoryMappedFile.OpenExisting("ProcessCommunicationStream");//获取服务端定义的ProcessCommunicationStream名称的内存映射文件然后调用ReadToEnd方法读取到服务端写入的数据
            using (var stream = memoryStream.CreateViewStream())
            {
                using (var reader = new StreamReader(stream))
                {
                    var str = reader.ReadToEnd();
                    Console.WriteLine(Environment.NewLine + "Stream Read Val:" + str + "\r\n");
                }
            }
            Console.ReadLine();

        }
    }
}