AWS IoT Device SDK C:
Platform
Platform portability layer
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Performs an atomic compare-and-swap operation on the given pointers.
[in,out] | pDestination | Pointer to the memory location to be loaded and checked. |
[in] | pNewValue | This value will be written to memory if the comparand matches the value at pDestination . |
[in] | pComparand | This value is compared to the value at pDestination . |
1
if the newValue
was written to pDestination
; 0
otherwise.