根据语言规范,lock(obj) statement;
会被编译为:
object lockObj = obj; // (the langspec doesn't mention this var, but it wouldn't be safe without it)
Monitor.Enter(lockObj);
try
{
statement;
}
finally
{
Monitor.Exit(lockObj);
}
然而,它被编译为:
try
{
object lockObj = obj;
bool lockTaken = false;
Monitor.Enter(lockObj, ref lockTaken);
statement;
}
finally
{
if (lockTaken) Monitor.Exit(lockObj);
}
这似乎比必要的要复杂得多。那么问题是,该实现的优势是什么?
最佳答案
一如既往,Eric Lippert 已经回答了这个问题:
Fabulous Adventures In Coding: Locks and exceptions do not mix
关于c# - Monitor.Enter(object, ref bool) 比 Monitor.Enter(object) 有什么优势?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10935092/