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23 lines
543 B
C
23 lines
543 B
C
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#ifndef __CAS_H__
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#define __CAS_H__
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#include "sdkconfig.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/portmacro.h"
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#define __cas_temp_sync_compare_and_swap_test(ptr, expected, desired) ({\
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bool ret = false;\
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unsigned state = portENTER_CRITICAL_NESTED(); \
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if (*ptr == expected) { \
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*ptr = desired; \
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ret = true;\
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}\
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portEXIT_CRITICAL_NESTED(state); \
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ret; \
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})
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#define __sync_bool_compare_and_swap(ptr, expected, desired) __cas_temp_sync_compare_and_swap_test(ptr, expected, desired)
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#endif
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