Sta*_*ked 6 c++ multithreading mutex poco-libraries
这两个代码示例是否相同?
Poco::ProcessHandle::PID ProcessRunner::processId() const
{
Poco::ProcessHandle::PID pid = 0;
mMutex.lock();
pid = mPID;
mMutex.unlock();
return pid;
}
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,
Poco::ProcessHandle::PID ProcessRunner::processId() const
{
Poco::ScopedLock<Poco::Mutex> lock(mMutex);
return mPID;
}
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