Functions | |
UINT16 EFIAPI | InternalSyncCompareExchange16 (IN UINT16 *Value, IN UINT16 CompareValue, IN UINT16 ExchangeValue) |
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UINT16 EFIAPI InternalSyncCompareExchange16 | ( | IN UINT16 * | Value, | |
IN UINT16 | CompareValue, | |||
IN UINT16 | ExchangeValue | |||
) |
Performs an atomic compare exchange operation on a 16-bit unsigned integer.
Performs an atomic compare exchange operation on the 16-bit unsigned integer specified by Value. If Value is equal to CompareValue, then Value is set to ExchangeValue and CompareValue is returned. If Value is not equal to CompareValue, then Value is returned. The compare exchange operation must be performed using MP safe mechanisms.
Value | A pointer to the 16-bit value for the compare exchange operation. | |
CompareValue | 16-bit value used in compare operation. | |
ExchangeValue | 16-bit value used in exchange operation. |