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