是否有C ++标准库包装或替换pthread_sigmask？

Question

In the code base I am working on, all thread control is done using std::thread and related objects, rather than using pthread directly.

However, I have not been able to find a C++ equivalent of pthread_sigmask , so I am wondering if there is a standard C++ way to block signals, and thereby handle signals consistently in a multi-threaded application.

In particular, I am wondering if there is a way to do the example here using c++11 without #include <pthread.h>

Answer 1

Short answer: no.

The pthread_sigmask is a pthread function, and the C++ standard library of thread functions doesn't rely on a specific threading library. For example, a Windows implementation is likely to use the Windows APIs under the hood.

If you want to use that function, you'll need to include <signal.h> and use it directly. Even examples from Boost do this.

Consider what you're trying to do, and ask yourself whether you really want to break portability by relying on a non-standard function or concept. Remember, threads and signals might not play nicely together; see Are std::signal and std::raise thread-safe?