Humphrey Management DB: Clippings (使用 lock 取代 MethodImplOptions.Synchronized)

News Item Detail

Title

使用 lock 取代 MethodImplOptions.Synchronized

Short Title

使用 lock 取代 MethodImplOptions.Synchronized

Link

https://blogs.msdn.microsoft.com/jchiou/2018/07/08/%e4%bd%bf%e7%94%a8lock-%...

Category

Visual Studio 2017

GUID

http://57993.5105

Publication Date

6/30/2018 3:02 PM

Date Scanned

7/2/2018 5:07 AM

Feed

MSDN - Blogs

Description

情境: ASP.NET 的網站忽然某一個功能會出現 System.Threading.SynchronizationLockException 其它都是正常. 錯誤訊息: System.Threading.SynchronizationLockException: Object synchronization method was called from an unsynchronized block of code. 測試: 測試發現如果使用MethodImplOptions.Synchronized，若thread進入執行並故意abort掉，可以重現.SynchronizationLockException。若改用lock則不會發生問題 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Runtime.CompilerServices; using System.Text; using System.Windows.Forms; using System.Threading; namespace LockDemo { public partial class Form1 : Form { public Form1() ...