Interlocked Variable Access

本文详细介绍了Windows环境下Interlocked函数族的功能及使用方法,包括加、减、比较交换等原子操作,并解释了不同内存排序语义对其行为的影响。

Add

AndOrXor

BitTestAndComplementBitTestAndResetBitTestAndSet

CompareExchangeExchangeExchangeAdd

IncrementDecrement,

 

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http://blog.youkuaiyun.com/zhongguoren666/article/details/7542975

 

 

Interlocked functionDescription
InterlockedAddPerforms an atomic addition operation on the specified LONG values.
InterlockedAddAcquirePerforms an atomic addition operation on the specified LONG values. The operation is performed with acquire memory ordering semantics.
InterlockedAddReleasePerforms an atomic addition operation on the specified LONG values. The operation is performed with release memory ordering semantics.
InterlockedAddNoFencePerforms an atomic addition operation on the specified LONG values. The operation is performed atomically, but without using memory barriers
InterlockedAdd64Performs an atomic addition operation on the specified LONGLONG values.
InterlockedAddAcquire64Performs an atomic addition operation on the specified LONGLONG values. The operation is performed with acquire memory ordering semantics.
InterlockedAddRelease64Performs an atomic addition operation on the specified LONGLONG values. The operation is performed with release memory ordering semantics.
InterlockedAddNoFence64Performs an atomic addition operation on the specified LONGLONG values. The operation is performed atomically, but without using memory barriers
InterlockedAndPerforms an atomic AND operation on the specified LONG values.
InterlockedAndAcquirePerforms an atomic AND operation on the specified LONG values. The operation is performed with acquire memory ordering semantics.
InterlockedAndReleasePerforms an atomic AND operation on the specified LONG values. The operation is performed with release memory ordering semantics.
InterlockedAndNoFencePerforms an atomic AND operation on the specified LONG values. The operation is performed atomically, but without using memory barriers
InterlockedAnd8Performs an atomic AND operation on the specified char values.
InterlockedAnd8AcquirePerforms an atomic AND operation on the specified char values. The operation is performed with acquire memory ordering semantics.
InterlockedAnd8ReleasePerforms an atomic AND operation on the specified char values. The operation is performed with release memory ordering semantics.
InterlockedAnd8NoFencePerforms an atomic AND operation on the specified char values. The operation is performed atomically, but without using memory barriers
InterlockedAnd16Performs an atomic AND operation on the specified SHORT values.
InterlockedAnd16AcquirePerforms an atomic AND operation on the specified SHORT values. The operation is performed with acquire memory ordering semantics.
InterlockedAnd16ReleasePerforms an atomic AND operation on the specified SHORT values. The operation is performed with release memory ordering semantics.
InterlockedAnd16NoFencePerforms an atomic AND operation on the specified SHORT values. The operation is performed atomically, but without using memory barriers
InterlockedAnd64Performs an atomic AND operation on the specified LONGLONG values.
InterlockedAnd64AcquirePerforms an atomic AND operation on the specified LONGLONG values. The operation is performed with acquire memory ordering semantics.
InterlockedAnd64ReleasePerforms an atomic AND operation on the specified LONGLONG values. The operation is performed with release memory ordering semantics.
InterlockedAnd64NoFencePerforms an atomic AND operation on the specified LONGLONG values. The operation is performed atomically, but without using memory barriers
InterlockedBitTestAndComplementTests the specified bit of the specified LONG value and complements it.
InterlockedBitTestAndComplement64Tests the specified bit of the specified LONG64 value and complements it. The operation is atomic
InterlockedBitTestAndResetAcquireTests the specified bit of the specified LONG value and sets it to 0. The operation is atomic, and it is performed with acquire memory ordering semantics
InterlockedBitTestAndResetReleaseTests the specified bit of the specified LONG value and sets it to 0. The operation is atomic, and it is performed using memory release semantics
InterlockedBitTestAndSetAcquireTests the specified bit of the specified LONG value and sets it to 1. The operation is atomic, and it is performed with acquire memory ordering semantics
InterlockedBitTestAndSetReleaseTests the specified bit of the specified LONG value and sets it to 1. The operation is atomic, and it is performed with release memory ordering semantics
InterlockedBitTestAndResetTests the specified bit of the specified LONG value and sets it to 0.
InterlockedBitTestAndReset64Tests the specified bit of the specified LONG64 value and sets it to 0.
InterlockedBitTestAndSetTests the specified bit of the specified LONG value and sets it to 1.
InterlockedBitTestAndSet64Tests the specified bit of the specified LONG64 value and sets it to 1.
InterlockedCompare64Exchange128Performs an atomic compare-and-exchange operation on the specified values. The function compares the specified 64-bit values and exchanges with the specified 128-bit value based on the outcome of the comparison.
InterlockedCompare64ExchangeAcquire128Performs an atomic compare-and-exchange operation on the specified values. The function compares the specified 64-bit values and exchanges with the specified 128-bit value based on the outcome of the comparison. The operation is performed with acquire memory ordering semantics.
InterlockedCompare64ExchangeRelease128Performs an atomic compare-and-exchange operation on the specified values. The function compares the specified 64-bit values and exchanges with the specified 128-bit value based on the outcome of the comparison. The operation is performed with release memory ordering semantics.
InterlockedCompareExchangePerforms an atomic compare-and-exchange operation on the specified values. The function compares two specified 32-bit values and exchanges with another 32-bit value based on the outcome of the comparison.
InterlockedCompareExchangeAcquirePerforms an atomic compare-and-exchange operation on the specified values. The function compares two specified 32-bit values and exchanges with another 32-bit value based on the outcome of the comparison. The operation is performed with acquire memory ordering semantics.
InterlockedCompareExchangeReleasePerforms an atomic compare-and-exchange operation on the specified values. The function compares two specified 32-bit values and exchanges with another 32-bit value based on the outcome of the comparison. The exchange is performed with release memory ordering semantics.
InterlockedCompareExchangeNoFencePerforms an atomic compare-and-exchange operation on the specified values. The function compares two specified 32-bit values and exchanges with another 32-bit value based on the outcome of the comparison. The operation is performed atomically, but without using memory barriers
InterlockedCompareExchange64Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 64-bit values and exchanges with another 64-bit value based on the outcome of the comparison.
InterlockedCompareExchangeAcquire64Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 64-bit values and exchanges with another 64-bit value based on the outcome of the comparison. The exchange is performed with acquire memory ordering semantics.
InterlockedCompareExchangeRelease64Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 64-bit values and exchanges with another 64-bit value based on the outcome of the comparison. The exchange is performed with release memory ordering semantics.
InterlockedCompareExchangeNoFence64Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 64-bit values and exchanges with another 64-bit value based on the outcome of the comparison. The operation is performed atomically, but without using memory barriers
InterlockedCompareExchange16Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 16-bit values and exchanges with another 16-bit value based on the outcome of the comparison
InterlockedCompareExchange16AcquirePerforms an atomic compare-and-exchange operation on the specified values. The function compares two specified 16-bit values and exchanges with another 16-bit value based on the outcome of the comparison. The operation is performed with acquire memory ordering semantics
InterlockedCompareExchange16ReleasePerforms an atomic compare-and-exchange operation on the specified values. The function compares two specified 16-bit values and exchanges with another 16-bit value based on the outcome of the comparison. The exchange is performed with release memory ordering semantics
InterlockedCompareExchange16NoFencePerforms an atomic compare-and-exchange operation on the specified values. The function compares two specified 16-bit values and exchanges with another 16-bit value based on the outcome of the comparison. The operation is performed atomically, but without using memory barriers
InterlockedCompareExchange128Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 128-bit values and exchanges with another 128-bit value based on the outcome of the comparison
InterlockedCompareExchangePointerPerforms an atomic compare-and-exchange operation on the specified pointer values. The function compares two specified pointer values and exchanges with another pointer value based on the outcome of the comparison.
InterlockedCompareExchangePointerAcquirePerforms an atomic compare-and-exchange operation on the specified pointer values. The function compares two specified pointer values and exchanges with another pointer value based on the outcome of the comparison. The operation is performed with acquire memory ordering semantics.
InterlockedCompareExchangePointerReleasePerforms an atomic compare-and-exchange operation on the specified pointer values. The function compares two specified pointer values and exchanges with another pointer value based on the outcome of the comparison. The operation is performed with release memory ordering semantics.
InterlockedCompareExchangePointerNoFencePerforms an atomic compare-and-exchange operation on the specified values. The function compares two specified pointer values and exchanges with another pointer value based on the outcome of the comparison. The operation is performed atomically, but without using memory barriers
InterlockedDecrementDecrements (decreases by one) the value of the specified 32-bit variable as an atomic operation.
InterlockedDecrementAcquireDecrements (decreases by one) the value of the specified 32-bit variable as an atomic operation. The operation is performed with acquire memory ordering semantics.
InterlockedDecrementReleaseDecrements (decreases by one) the value of the specified 32-bit variable as an atomic operation. The operation is performed with release memory ordering semantics.
InterlockedDecrementNoFenceDecrements (decreases by one) the value of the specified 32-bit variable as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedDecrement16Decrements (decreases by one) the value of the specified 16-bit variable as an atomic operation
InterlockedDecrement16AcquireDecrements (decreases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed with acquire memory ordering semantics
InterlockedDecrement16ReleaseDecrements (decreases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed with release memory ordering semantics
InterlockedDecrement16NoFenceDecrements (decreases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedDecrement64Decrements (decreases by one) the value of the specified 64-bit variable as an atomic operation.
InterlockedDecrementAcquire64Decrements (decreases by one) the value of the specified 64-bit variable as an atomic operation. The operation is performed with acquire memory ordering semantics.
InterlockedDecrementRelease64Decrements (decreases by one) the value of the specified 64-bit variable as an atomic operation. The operation is performed with release memory ordering semantics.
InterlockedDecrementNoFence64Decrements (decreases by one) the value of the specified 64-bit variable as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedExchangeSets a 32-bit variable to the specified value as an atomic operation.
InterlockedExchangeAcquireSets a 32-bit variable to the specified value as an atomic operation. The operation is performed with acquire memory ordering semantics.
InterlockedExchangeNoFenceSets a 64-bit variable to the specified value as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedExchange8Sets an 8-bit variable to the specified value as an atomic operation
InterlockedExchange16Sets a 16-bit variable to the specified value as an atomic operation.
InterlockedExchange16AcquireSets a 16-bit variable to the specified value as an atomic operation. The operation is performed using acquire memory ordering semantics
InterlockedExchange16NoFenceSets a 16-bit variable to the specified value as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedExchange64Sets a 64-bit variable to the specified value as an atomic operation.
InterlockedExchangeAcquire64Sets a 32-bit variable to the specified value as an atomic operation. The operation is performed with acquire memory ordering semantics.
InterlockedExchangeNoFence64Sets a 64-bit variable to the specified value as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedExchangePointerAtomically exchanges a pair of pointer values.
InterlockedExchangePointerAcquireAtomically exchanges a pair of pointer values. The operation is performed with acquire memory ordering semantics.
InterlockedExchangePointerNoFenceAtomically exchanges a pair of addresses. The operation is performed atomically, but without using memory barriers
InterlockedExchangeSubtractPerforms an atomic subtraction of two values.
InterlockedExchangeAddPerforms an atomic addition of two 32-bit values.
InterlockedExchangeAddAcquirePerforms an atomic addition of two 32-bit values. The operation is performed with acquire memory ordering semantics.
InterlockedExchangeAddReleasePerforms an atomic addition of two 32-bit values. The operation is performed with release memory ordering semantics.
InterlockedExchangeAddNoFencePerforms an atomic addition of two 32-bit values. The operation is performed atomically, but without using memory barriers
InterlockedExchangeAdd64Performs an atomic addition of two 64-bit values.
InterlockedExchangeAddAcquire64Performs an atomic addition of two 64-bit values. The operation is performed with acquire memory ordering semantics.
InterlockedExchangeAddRelease64Performs an atomic addition of two 64-bit values. The operation is performed with release memory ordering semantics.
InterlockedExchangeAddNoFence64Performs an atomic addition of two 64-bit values. The operation is performed atomically, but without using memory barriers
InterlockedIncrementIncrements (increases by one) the value of the specified 32-bit variable as an atomic operation.
InterlockedIncrementAcquireIncrements (increases by one) the value of the specified 32-bit variable as an atomic operation. The operation is performed using acquire memory ordering semantics.
InterlockedIncrementReleaseIncrements (increases by one) the value of the specified 32-bit variable as an atomic operation. The operation is performed using release memory ordering semantics.
InterlockedIncrementNoFenceIncrements (increases by one) the value of the specified 32-bit variable as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedIncrement16Increments (increases by one) the value of the specified 16-bit variable as an atomic operation
InterlockedIncrement16AcquireIncrements (increases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed using acquire memory ordering semantics
InterlockedIncrement16ReleaseIncrements (increases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed using release memory ordering semantics
InterlockedIncrement16NoFenceIncrements (increases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedIncrement64Increments (increases by one) the value of the specified 64-bit variable as an atomic operation.
InterlockedIncrementAcquire64Increments (increases by one) the value of the specified 64-bit variable as an atomic operation. The operation is performed using acquire memory ordering semantics.
InterlockedIncrementRelease64Increments (increases by one) the value of the specified 64-bit variable as an atomic operation. The operation is performed using release memory ordering semantics.
InterlockedIncrementNoFence64Increments (increases by one) the value of the specified 64-bit variable as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedOrPerforms an atomic OR operation on the specified LONG values.
InterlockedOrAcquirePerforms an atomic OR operation on the specified LONG values. The operation is performed with acquire memory ordering semantics.
InterlockedOrReleasePerforms an atomic OR operation on the specified LONG values. The operation is performed with release memory ordering semantics.
InterlockedOrNoFencePerforms an atomic OR operation on the specified LONG values. The operation is performed atomically, but without using memory barriers
InterlockedOr8Performs an atomic OR operation on the specified char values.
InterlockedOr8AcquirePerforms an atomic OR operation on the specified char values. The operation is performed with acquire memory ordering semantics.
InterlockedOr8ReleasePerforms an atomic OR operation on the specified char values. The operation is performed with release memory ordering semantics.
InterlockedOr8NoFencePerforms an atomic OR operation on the specified char values. The operation is performed atomically, but without using memory barriers
InterlockedOr16Performs an atomic OR operation on the specified SHORT values.
InterlockedOr16AcquirePerforms an atomic OR operation on the specified SHORT values. The operation is performed with acquire memory ordering semantics.
InterlockedOr16ReleasePerforms an atomic OR operation on the specified SHORT values. The operation is performed with release memory ordering semantics.
InterlockedOr16NoFencePerforms an atomic OR operation on the specified SHORT values. The operation is performed atomically, but without using memory barriers
InterlockedOr64Performs an atomic OR operation on the specified LONGLONG values.
InterlockedOr64AcquirePerforms an atomic OR operation on the specified LONGLONG values. The operation is performed with acquire memory ordering semantics.
InterlockedOr64ReleasePerforms an atomic OR operation on the specified LONGLONG values. The operation is performed with release memory ordering semantics.
InterlockedOr64NoFencePerforms an atomic OR operation on the specified LONGLONG values. The operation is performed atomically, but without using memory barriers
InterlockedXorPerforms an atomic XOR operation on the specified LONG values.
InterlockedXorAcquirePerforms an atomic XOR operation on the specified LONG values. The operation is performed with acquire memory ordering semantics.
InterlockedXorReleasePerforms an atomic XOR operation on the specified LONG values. The operation is performed with release memory ordering semantics.
InterlockedXorNoFencePerforms an atomic XOR operation on the specified LONG values. The operation is performed atomically, but without using memory barriers
InterlockedXor8Performs an atomic XOR operation on the specified char values.
InterlockedXor8AcquirePerforms an atomic XOR operation on the specified char values. The operation is performed with acquire memory ordering semantics.
InterlockedXor8ReleasePerforms an atomic XOR operation on the specified char values. The operation is performed with release memory ordering semantics.
InterlockedXor8NoFencePerforms an atomic XOR operation on the specified char values. The operation is performed atomically, but without using memory barriers
InterlockedXor16Performs an atomic XOR operation on the specified SHORT values.
InterlockedXor16AcquirePerforms an atomic XOR operation on the specified SHORT values. The operation is performed with acquire memory ordering semantics.
InterlockedXor16ReleasePerforms an atomic XOR operation on the specified SHORT values. The operation is performed with release memory ordering semantics.
InterlockedXor16NoFencePerforms an atomic XOR operation on the specified SHORT values. The operation is performed atomically, but without using memory barriers
InterlockedXor64Performs an atomic XOR operation on the specified LONGLONG values.
InterlockedXor64AcquirePerforms an atomic XOR operation on the specified LONGLONG values. The operation is performed with acquire memory ordering semantics.
InterlockedXor64ReleasePerforms an atomic XOR operation on the specified LONGLONG values. The operation is performed with release memory ordering semantics.
InterlockedXor64NoFencePerforms an atomic XOR operation on the specified LONGLONG values. The operation is performed atomically, but without using memory barriers
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