如何实现一个非管理线程安全收集当我得到这个错误：< mutex>在使用/ clr进行编译时不受支持 [英] How to implement a unmanaged thread-safe collection when I get this error: <mutex> is not supported when compiling with /clr
问题描述
我有一个C ++应用程序，它由非托管C ++，托管C ++和C＃组成。在非托管部分，我试图创建一个线程安全的收集使用std :: mutex。
I have a C++ application which consists of unmanaged C++, managed C++ and c#. In the unmanaged part I'm trying to create a thread safe collection using std::mutex.
但是当我使用mutex时，我得到以下错误：
However when I use the mutex I get the following error;
error C1189: #error : <mutex> is not supported when compiling with /clr or /clr:pure.
使用/ clr或/ clr：pure进行编译时，不支援C1189：#error：< mutex不能使用互斥？
有人可以推荐替换它，以便我可以创建一个线程安全的非托管集合吗？
Any idea why I can't use the mutex? Can someone recommend a replacement for it so that I can create a thread-safe unmanaged collection?
推荐答案
不支持，因为std :: mutex实现使用GetCurrentThreadId（）。这是一个不是应该在托管代码中使用的winapi函数，因为它可能在不使用线程来实现线程的自定义CLR主机上运行。
It is not supported because the std::mutex implementation uses GetCurrentThreadId(). That's a winapi function that is not supposed to be use in managed code since it might be running on a custom CLR host that doesn't use threads to implement threading.
这是一个好的问题，它表明你正在建设你的代码错误。你的本地C ++正在编译/ clr有效。它工作得太好了，所有C ++ 03兼容的代码可以编译为MSIL，并在运行时获得即时编译，就像托管代码。你不希望这种情况发生，你的本地C ++代码应该被编译为机器代码，并获得编译时代码优化器的爱。
This is the good kind of problem to have, it shows that you are building your code wrong. Your native C++ is being compiled with /clr in effect. Which works rather too well, all C++03 compliant code can be compiled to MSIL and get just-in-time compiled at runtime, just like managed code. You don't want this to happen, your native C++ code should be compiled to machine code and get the compile-time code optimizer love.
关闭/ clr选项对于此源代码文件，以及可能的其他项目。右键单击+属性，常规。如果 mutex 出现在你必须在C ++ / CLI源文件中包含的.h文件中，那么你有一个更大的问题，使用接口或pimpl隐藏实现详情。
Turn off the /clr option for this source code file, and possibly others, in your project. Right-click + Properties, General. If the mutex appears in the .h file that you have to #include in a C++/CLI source file then you have a bigger problem, use an interface or pimpl to hide implementation details.
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