2015年5月8日 · "An operation acting on shared memory is atomic if it completes in a single step relative to other threads. When an atomic store is performed on a shared memory, no other …

2013年3月27日 · Atomic Operations on the other hand are usually associated with low-level programming with regards to multi-processing or multi-threading applications and are similar to …

2015年8月13日 · std::atomic<> wraps operations that, in pre-C++ 11 times, had to be performed using (for example) interlocked functions with MSVC or atomic bultins in case of GCC. Also, …

2012年8月10日 · Generally I would suggest that one confine use of them to small methods like "atomic increment" and such, which could easily be rewritten if needed to use other …

2014年10月20日 · Atomic type specifiers shall not be used if the implementation does not support atomic types. The type name in an atomic type specifier shall not refer to an array type, a …

2018年9月6日 · Here, each upsert is atomic: the first one left count at 2, the second one left it at 3. Everything works. Note that "atomic" is contextual: in this case, the upsert operation only …

2014年6月4日 · The definition of atomic is hazy; a value that is atomic in one application could be non-atomic in another. For a general guideline, a value is non-atomic if the application deals …

2013年5月1日 · Using std::atomic::compare_exchange we can do the entire if/swap logic atomically such that the other thread could not set a to false in between the if and the swap …

2013年10月21日 · For instance getAndIncrement() is an atomic equivalent to i++ which is not atomic because it is actually a short cut for three operations: retrieval, addition and …

2009年2月26日 · Atomicity property attributes (atomic and nonatomic) are not reflected in the corresponding Swift property declaration, but the atomicity guarantees of the Objective-C …