线程崩溃后离开关键部分-Leavingcriticalsectionafterthreadcrash

2  

You can create a class LockCriticalSection, which lock a critical section in the constructor and unlock the critical section in the destructor.

您可以创建一个LockCriticalSection类,它锁定构造函数中的关键部分并解锁析构函数中的关键部分。

Then, in your code you allocate a LockCriticalSection object where you want to start the lock. The critical section will be released automatically when the object LockCriticalSection goes out of scope (because the function terminates correctly or because of an exception)

然后,在代码中分配一个LockCriticalSection对象,在该对象中启动锁定。当对象LockCriticalSection超出范围时,临界区将自动释放(因为函数正确终止或由于异常)

The following is the code that takes care of locking and unlocking the critical section:

以下是负责锁定和解锁关键部分的代码:

/// \brief This class locks a critical section in the
///         constructor and unlocks it in the destructor.
///
/// This helps to correctly release a critical section in
///  case of exceptions or premature exit from a function
///  that uses the critical section.
///
///////////////////////////////////////////////////////////
class LockCriticalSection
{
public:
        /// \brief Creates the object LockCriticalSection and
        ///         lock the specified CRITICAL_SECTION.
        ///
        /// @param pCriticalSection pointer to the CRITICAL_SECTION 
        ///                         to lock
        ///
        ///////////////////////////////////////////////////////////
        LockCriticalSection(CRITICAL_SECTION* pCriticalSection):
            m_pCriticalSection(pCriticalSection)
        {
            EnterCriticalSection(pCriticalSection);
        }

        /// \brief Destroy the object LockCriticalSection and
        ///         unlock the previously locked CRITICAL_SECTION.
        ///
        ///////////////////////////////////////////////////////////
        virtual ~LockCriticalSection()
        {
            LeaveCriticalSection(m_pCriticalSection);
        }
private:
        CRITICAL_SECTION* m_pCriticalSection;
};

And this is the modified source code from your question:

这是您问题的修改后的源代码:

do
{
    {
        LockCriticalSection lock(&criticalSectionToLock);
        while (!commandExec->commands.empty())
        {
            commandExec->ExecuteCommand(commandExec->commands.front());
            commandExec->commands.pop_front();
        }
    } // here the critical section is released
    // suspend thread here
} while (commandExec->maintainCommandExecution);

2  

You can use a Mutex instead of a critical section (but beware of the problem outlined in Understanding the consequences of WAIT_ABANDONED).

您可以使用互斥锁而不是关键部分(但要注意理解WAIT_ABANDONED的后果中概述的问题)。