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c++ Programming Glossary: fenceWhy use prefixes on member variables in C++ classes http://stackoverflow.com/questions/1228161/why-use-prefixes-on-member-variables-in-c-classes and the clash created some unexpected results. I am on the fence about how useful it is to mark up local variables. Here is a..
http://stackoverflow.com/questions/2478397/atomic-swap-in-gnu-c the confusing mess. What you really want is a memory fence. __sync_lock_test_and_set provides the fencing for you. You.. provides the fencing for you. You will also need a memory fence when you copy load the rt_data pointer to your local copy. Lock..
When and why will an OS initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete? http://stackoverflow.com/questions/370195/when-and-why-will-an-os-initialise-memory-to-0xcd-0xdd-etc-on-malloc-free-new used to wrap the allocated memory surrounding it with a fence and is used to detect indexing arrays out of bounds or other..
Double-Checked Lock Singleton in C++11 http://stackoverflow.com/questions/6086912/double-checked-lock-singleton-in-c11 guarantee its correctness or a further std atomic_thread_fence std memory_order_release is also required to ensure that the.. happen before the relaxed store Yet is the use of fence equivalent to have the store with memory_order_release EDIT..
Memory model ordering and visibility? http://stackoverflow.com/questions/7461484/memory-model-ordering-and-visibility thread and has implemented c 11 thread and mutex library A fence with memory_order_seq_cst does not enforce immediate visibility.. memory orderings guarantee that there will be a memory fence before and after load and stores http www.stdthread.co.uk doc.. in this code atomicVar.store 42 std atomic_thread_fence std memory_order_seq_cst 3. do std atomic_thread_fences have..
How to use std::atomic efficiently http://stackoverflow.com/questions/8749038/how-to-use-stdatomic-efficiently the synchronization cost of a LOCK ed instruction or a fence my implementation puts the price on the store but other implementations..
C++ Memory Barriers for Atomics http://stackoverflow.com/questions/8841738/c-memory-barriers-for-atomics following memory barriers The windows MemoryBarrier The fence _mm_mfence The inline assembly asm volatile memory The intrinsic.. memory barriers The windows MemoryBarrier The fence _mm_mfence The inline assembly asm volatile memory The intrinsic _ReadWriteBarrier.. improve this question Both MemoryBarrier MSVC and _mm_mfence supported by several compilers provide a hardware memory fence..
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