c++ Programming Glossary: unlock

Are function static variables thread-safe in GCC?

http://stackoverflow.com/questions/1270927/are-function-static-variables-thread-safe-in-gcc

to put explicit guarding e.g. with pthread_mutex_lock unlock How to write portable code how to check if compiler will add..

When to make a type non-movable in C++11?

http://stackoverflow.com/questions/14302834/when-to-make-a-type-non-movable-in-c11

and before it has been destroyed is to lock it and unlock it and those operations are explicitly guaranteed to be thread..

does presence of mutex help getting rid of volatile key word ?

http://stackoverflow.com/questions/1616093/does-presence-of-mutex-help-getting-rid-of-volatile-key-word

obj.mutex really should use RAII temp2 obj.x temp3 obj.x unlock obj.mutex return temp After reading obj.x for temp1 the compiler.. your locking would be broken useless . Lastly if your lock unlock functions were somehow inlined maybe the compiler could evaluate..

What exactly is a reentrant function?

http://stackoverflow.com/questions/2799023/what-exactly-is-a-reentrant-function

mutex void myFunction MyCallback f lock mutex f unlock mutex At first sight this function seems Ok... But wait int.. mutex size_t c P p void foo lock m if c 0 this p new P c unlock m Lots of code some using this p lock m c if c 0 delete this.. using this p lock m c if c 0 delete this p this p NULL unlock m And of course this all assumes the lots of code is itself..

When do programmers use Empty Base Optimization (EBO)

http://stackoverflow.com/questions/4325144/when-do-programmers-use-empty-base-optimization-ebo

code class MTSafePolicy public void lock mutex_.lock void unlock mutex_.unlock private Mutex mutex_ class MTUnsafePolicy public.. public void lock mutex_.lock void unlock mutex_.unlock private Mutex mutex_ class MTUnsafePolicy public void lock no.. mutex_ class MTUnsafePolicy public void lock no op void unlock no op Given a policy based design class such as template class..

Calling pthread_cond_signal without locking mutex

http://stackoverflow.com/questions/4544234/calling-pthread-cond-signal-without-locking-mutex

lock the mutex before calling pthread_cond_signal and unlock the mutext after calling it The pthread_cond_signal routine.. It should be called after mutex is locked and must unlock mutex in order for pthread_cond_wait routine to complete. My.. condition FALSE pthread_cond_wait cond mutex pthread_mutex_unlock mutex Process B incorrect condition TRUE pthread_cond_signal..

C++0x has no semaphores? How to synchronize threads?

http://stackoverflow.com/questions/4792449/c0x-has-no-semaphores-how-to-synchronize-threads

a mutex void thread0 ... doSomething0 event1.lock event1.unlock ... void thread1 ... event1.lock doSomethingth1 event1.unlock.. ... void thread1 ... event1.lock doSomethingth1 event1.unlock ... Problem It's ugly and it's not guaranteed that thread1 locks.. the mutex first Given that the same thread should lock and unlock a mutex you also can't lock event1 before thread0 and thread1..

Thread Wait For Parent

http://stackoverflow.com/questions/5799924/thread-wait-for-parent

created lock the mutex. When a job needs to be performed unlock a the next mutex in line wait for it to be locked and unlocked.. a the next mutex in line wait for it to be locked and unlocked and relock it. However I'm wondering if there's a much better.. #include memory #include list Use RAII to do the lock unlock struct MutexLock MutexLock pthread_mutex_t m mutex m pthread_mutex_lock..

Why do some people use swap for move assignments?

http://stackoverflow.com/questions/6687388/why-do-some-people-use-swap-for-move-assignments

following unique_lock operator unique_lock __u if _M_owns unlock unique_lock std move __u .swap this __u._M_device 0 __u._M_owns.. lhs prior to the assignment might be important such as the unlock in your example . So I stopped using swap for move assignment... unique_lock operator unique_lock __u if __owns_ __m_ unlock __m_ __u.__m_ __owns_ __u.__owns_ __u.__m_ nullptr __u.__owns_..

I've heard i++ isn't thread safe, is ++i thread-safe?

http://stackoverflow.com/questions/680097/ive-heard-i-isnt-thread-safe-is-i-thread-safe

r0 increment reg 0 stor i r0 store reg 0 back to memory unlock enable task switching interrupts where lock disables and unlock.. enable task switching interrupts where lock disables and unlock enables interrupts. But even then this may not be thread safe..

Throwing exceptions from constructors

http://stackoverflow.com/questions/810839/throwing-exceptions-from-constructors

pthread_mutex_lock mutex_ 0 throw MutexLockException void unlock if pthread_mutex_unlock mutex_ 0 throw MutexUnlockException.. 0 throw MutexLockException void unlock if pthread_mutex_unlock mutex_ 0 throw MutexUnlockException private pthread_mutex_t..

How can I intercept all key events, including ctrl+alt+del and ctrl+tab?

http://stackoverflow.com/questions/886076/how-can-i-intercept-all-key-events-including-ctrlaltdel-and-ctrltab

Ctrl Alt Del and then selected Lock this computer . To unlock the computer they would then need to press Ctrl Alt Del and..