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c++ Programming Glossary: fencesHow can I create a thread-safe singleton pattern in Windows? http://stackoverflow.com/questions/164496/how-can-i-create-a-thread-safe-singleton-pattern-in-windows checked locking pattern since volatile variables behave as fences . This is the most efficient way to implement a lazy initialized..
Why GCC does not use LOAD(without fence) and STORE+SFENCE for std::memory_order_seq_cst? http://stackoverflow.com/questions/19047327/why-gcc-does-not-use-loadwithout-fence-and-storesfence-for-stdmemory-order instead of locking or fencing the Seq Cst store locks fences the Seq Cst load Load Seq_Cst LOCK XADD 0 alternative MFENCE.. to store a constant value into an atomic variable. The fences are there because std memory_order_seq_cst implies that all.. result of strcpy becomes visible in other threads. Now the fences matters but the order of them inside the call to atomic store..
When to use volatile with multi threading? http://stackoverflow.com/questions/4557979/when-to-use-volatile-with-multi-threading not provide any synchronization it does not create memory fences nor does it ensure the order of execution of operations. It..
http://stackoverflow.com/questions/6866206/volatile-and-createthread the time what people really want are barriers also called fences and atomic instructions which are all compiler and architecture..
Are volatile reads and writes atomic on Windows+VisualC? http://stackoverflow.com/questions/7007403/are-volatile-reads-and-writes-atomic-on-windowsvisualc links test cases c visual c atomic volatile memory fences share improve this question Yes they are atomic on windows..
C++11 features in Visual Studio 2012 http://stackoverflow.com/questions/7421825/c11-features-in-visual-studio-2012 types Atomics Strong compare and exchange Bi directional fences Data dependency ordering Range based for loop In early November..
Memory model ordering and visibility? http://stackoverflow.com/questions/7461484/memory-model-ordering-and-visibility std memory_order_seq_cst 3. do std atomic_thread_fences have same requirements as mutexes in a sense that to ensure.. share improve this question If you like to deal with fences then a.load memory_order_acquire is equivalent to a.load memory_order_relaxed.. or the load . Consequently standalone acquire and release fences are no ops but atomic_thread_fence memory_order_seq_cst is not..
C++ Memory Barriers for Atomics http://stackoverflow.com/questions/8841738/c-memory-barriers-for-atomics the processor is still free to do reordering. Compiler fences are generally used in combination with operations that have..
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