Default implementations of non-essential 32-bit pointer atomic operations.
Declared in <bsls_atomicoperations_default.h>
template<class IMP>
struct AtomicOperations_DefaultPointer32;This class provides default implementations of non-essential atomic operations for the 32-bit pointer type independent on any specific platform. It also provides prototypes for the atomic operations for the pointer type that have to be implemented separately for each specific platform. These platform-independent and platform-specific atomic operations combined together form a full set of atomic operations for the pointer type.
Note that AtomicOperations_DefaultPointer32 is implemented in terms of the following atomic operations on the integer type that must be provided by the IMP template parameter. ` static int getInt(typename AtomicTypes::Int const *atomicInt); static int getIntRelaxed(typename AtomicTypes::Int const *atomicInt); static int getIntAcquire(typename AtomicTypes::Int const *atomicInt); static void setInt(typename AtomicTypes::Int *atomicInt, int value); static void setIntRelaxed(typename AtomicTypes::Int *atomicInt, int value); static void setIntRelease(typename AtomicTypes::Int *atomicInt, int value); static int swapInt(typename AtomicTypes::Int *atomicInt, int swapValue); static int swapIntAcqRel(typename AtomicTypes::Int *atomicInt, int swapValue); static int testAndSwapInt(typename AtomicTypes::Int *atomicInt, int compareValue, int swapValue); static int testAndSwapIntAcqRel(typename AtomicTypes::Int *atomicInt, int compareValue, int swapValue); `
| Name | Description |
|---|---|
AtomicTypes | This typedef is an alias to Atomic_TypeTraits<IMP>. |
| Name | Description |
|---|---|
getPtr | Atomically retrieve the value of the specified atomicPtr, providing the sequential consistency memory ordering guarantee. |
getPtrAcquire | Atomically retrieve the value of the specified atomicPtr, providing the acquire memory ordering guarantee. |
getPtrRelaxed | Atomically retrieve the value of the specified atomicPtr, without providing any memory ordering guarantees. |
initPointer | Initialize the specified atomicPtr and set its value to the optionally specified initialValue. |
setPtr | Atomically set the value of the specified atomicPtr to the specified value, providing the sequential consistency memory ordering guarantee. |
setPtrRelaxed | Atomically set the value of the specified atomicPtr to the specified value, without providing any memory ordering guarantees. |
setPtrRelease | Atomically set the value of the specified atomicPtr to the specified value, providing the release memory ordering guarantee. |
swapPtr | Atomically swap atomicPtr and return its previous value. |
swapPtrAcqRel | Atomically swap atomicPtr with acquire/release ordering. |
testAndSwapPtr | Conditionally swap atomicPtr if it equals compareValue. |
testAndSwapPtrAcqRel | Conditionally swap atomicPtr with acquire/release ordering. |
| Name | Description |
|---|---|
AtomicOperations_Default32 | Default atomic operations for a generic 32-bit platform. |