应用程序中两个不同版本的库 [英] Two library of different versions in an application
问题描述
请考虑一个场景，其中存在两个不同版本的共享库.请考虑将A.1.so链接到B.so，将A.2.so链接到C.so.现在B.so和C.so都链接到d.exe了.当B.so想要在A.1.so中调用函数时，最终在A.2.so中调用函数.因此，它给我们带来了不确定的行为.
Consider a scenario where there are two shared library of different version.Consider A.1.so linked to B.so and A.2.so linked to C.so. Now both B.so and C.so are linked to d.exe . When B.so wants to invoke function in A.1.so, it ends up calling function in A.2.so .Because of this , it gives us undefined behaviour.
现在我希望我的B.so只调用A.1.so.我只能修改A.1.so和B.so，没有别的.使用dlopen()是选项之一，但是对于使用dlopen()，我必须在B.so中进行大量更改.堆栈溢出中前面给出了许多解决方案，但是似乎没有任何效果.请注意，我只能在A.1.so和B.so中进行代码更改.
Now I want my B.so invoke only A.1.so.I can only modify A.1.so and B.so , nothing else. Using dlopen() is one of the option, but for using dlopen(), I have to make heavy changes in B.so. There are many solutions given earlier in Stack Overflow, but nothing seems to work. Kindly note that I can make code changes in A.1.so and B.so only.
除了dlopen()之外，是否还有其他解决方案.我已经在下面提到了一些链接.
Is there any other solution to this problem other than dlopen(). I have mentioned some of the links below.
- https://blog.habets.se/2012 /05/Shared-libraries-diamond-problem.html
- https://code.woboq.org /qt5/qtbase/src/network/ssl/qsslsocket_openssl_symbols_p.h.html
- https://www.mailerq.com/blog/good -reasons-to-use-dlopen
- 加载具有不同版本的多个共享库
- 程序使用两个冲突的共享库
- C ++两个库都依赖于相同的库，但有所不同版本?
- 链接到库的多个版本
- C ++两个库都依赖于相同的库，但有所不同版本?
- https://blog.habets.se/2012/05/Shared-libraries-diamond-problem.html
- https://code.woboq.org/qt5/qtbase/src/network/ssl/qsslsocket_openssl_symbols_p.h.html
- https://www.mailerq.com/blog/good-reasons-to-use-dlopen
- Loading multiple shared libraries with different versions
- Program use two conflicting shared libraries
- C++ two libraries depend on same lib but different versions?
- Linking with multiple versions of a library
- C++ two libraries depend on same lib but different versions?
推荐答案
是否可以将所有代码包装在namespace A1中的A1.cpp中，并在B.cpp中添加using namespace A1?
A1.cpp和B.cpp是指A1.so和B.so的所有相关翻译单元.
can you wrap all code in A1.cpp in namespace A1 and add a using namespace A1 to B.cpp?
By A1.cpp an B.cpp I mean all the relevant translation units for A1.so and B.so.
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