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c++ Programming Glossary: locked

System(“pause”); - Why is it wrong?

http://stackoverflow.com/questions/1107705/systempause-why-is-it-wrong

fine to use. Some say it is only to be used when you are locked in your room and no one is watching. Some say that they will..

C state-machine design

http://stackoverflow.com/questions/1647631/c-state-machine-design

This isn't as bad as it sounds since the FSM is usually locked up inside a single compilation unit and all variables are static..

Does the JVM create a mutex for every object in order to implement the 'synchronized' keyword? If not, how?

http://stackoverflow.com/questions/1898374/does-the-jvm-create-a-mutex-for-every-object-in-order-to-implement-the-synchron

bits in the object's header word. If the object is never locked or if it is locked but there is no contention it stays that.. header word. If the object is never locked or if it is locked but there is no contention it stays that way. If and when contention.. it stays that way. If and when contention occurs on a locked object the JVM inflates the lock into a full blown mutex data..

When to use recursive mutex?

http://stackoverflow.com/questions/2415082/when-to-use-recursive-mutex

mutex I understand recursive mutex allows mutex to be locked more than once without getting to a deadlock and should be unlocked.. than once without getting to a deadlock and should be unlocked the same number of times. But in what specific situations do..

Difference between Locks, Mutex and Critical Sections

http://stackoverflow.com/questions/2808617/difference-between-locks-mutex-and-critical-sections

with critical section all other threads will be still locked. Critical sections are cannot be named so you cannot use them..

Preventing multiple process instances on Linux

http://stackoverflow.com/questions/2964391/preventing-multiple-process-instances-on-linux

with LOCK_EX LOCK_NB it will fail if the file is already locked. This is race condition free and the lock will be automatically..

Calling pthread_cond_signal without locking mutex

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

the condition variable. It should be called after mutex is locked and must unlock mutex in order for pthread_cond_wait routine.. less optimal scheduling of threads and you've necessarily locked the mutex already in this code path due to changing the condition..

Creating a counter that stays synchronized across MPI processes

http://stackoverflow.com/questions/4948788/creating-a-counter-that-stays-synchronized-across-mpi-processes

a bit more difficult as I'd need to ensure the counter is locked while being changed etc.. And thought there might be a built..

Mutex example / tutorial?

http://stackoverflow.com/questions/4989451/mutex-example-tutorial

mutex1 where it looks like the mutex is being locked when what I really want to lock is some other variable. Does.. a mutex locks a region of code until the mutex is unlocked Then how do threads know that the region is locked UPDATE Threads.. is unlocked Then how do threads know that the region is locked UPDATE Threads know that the region is locked by Memory Fencing..

Why is CUDA pinned memory so fast?

http://stackoverflow.com/questions/5736968/why-is-cuda-pinned-memory-so-fast

this question CUDA Driver checks if the memory range is locked or not and then it will use a different codepath. Locked memory.. Async copy device only need list of physical pages . Not locked memory can generate a page fault on access and it is stored.. can be in swap so driver need to access every page of non locked memory copy it into pinned buffer and pass it to DMA Syncronious..

Thread Wait For Parent

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

unlock 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 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.. acquire the mutex so when we get here the mutex is again locked. Note You must use while here. This is because of the situation...

Comparing std::tr1::function<> objects

http://stackoverflow.com/questions/89488/comparing-stdtr1function-objects

tr1 share improve this question I don't know if you're locked into std C and tr1 but if you aren't it seems like your problem..