ATOMIC(9) OpenBSD Kernel Manual ATOMIC(9)[top]NAMEatomic, atomic_setbits_int,atomic_clearbits_int- interface to perform atomic operations on dataSYNOPSIS#include <machine/atomic.h> void atomic_setbits_int(unsigned int *p, unsigned int b); void atomic_clearbits_int(unsigned int *p, unsigned int b);DESCRIPTIONThe atomic set of functions provide an interface for changing data atomically with respect to interrupts and multiple processors in the system. The atomic_setbits_int() function sets the bits in b in the integer pointed to by p. It is equivalent to *p |= b; The atomic_clearbits_int() function clears the bits in b in the integer pointed to by p. It is equivalent to *p &= ~b;HISTORYThe atomic functions first appeared in OpenBSD 4.1.OpenBSD 4.9May 31, 2007 OpenBSD 4.9

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