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When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
atomic_and, atomic_and_8, atomic_and_uchar, atomic_and_16, atomic_and_ushort, atomic_and_32, atomic_and_uint, atomic_and_ulong, atomic_and_64, atomic_and_8_nv, atomic_and_uchar_nv, atomic_and_16_nv, atomic_and_ushort_nv, atomic_and_32_nv, atomic_and_uint_nv, atomic_and_ulong_nv, atomic_and_64_nv - atomic AND operations

#include <sys/atomic.h>

void atomic_and_8(volatile uint8_t *target, uint8_t bits);

void atomic_and_uchar(volatile uchar_t *target, uchar_t bits);

void atomic_and_16(volatile uint16_t *target, uint16_t bits);

void atomic_and_ushort(volatile ushort_t *target, ushort_t bits);

void atomic_and_32(volatile uint32_t *target, uint32_t bits);

void atomic_and_uint(volatile uint_t *target, uint_t bits);

void atomic_and_ulong(volatile ulong_t *target, ulong_t bits);

void atomic_and_64(volatile uint64_t *target, uint64_t bits);

uint8_t atomic_and_8_nv(volatile uint8_t *target, uint8_t bits);

uchar_t atomic_and_uchar_nv(volatile uchar_t *target, uchar_t bits);

uint16_t atomic_and_16_nv(volatile uint16_t *target, uint16_t bits);

ushort_t atomic_and_ushort_nv(volatile ushort_t *target, ushort_t bits);

uint32_t atomic_and_32_nv(volatile uint32_t *target, uint32_t bits);

uint_t atomic_and_uint_nv(volatile uint_t *target, uint_t bits);

ulong_t atomic_and_ulong_nv(volatile ulong_t *target, ulong_t bits);

uint64_t atomic_and_64_nv(volatile uint64_t *target, uint64_t bits);

These functions enable the bitwise AND of bits to the value stored in target to occur in an atomic manner.

The *_nv() variants of these functions return the new value of target.

No errors are defined.

These functions can be called from user, interrupt, or kernel context.

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE

Interface Stability Committed

atomic_add(9F), atomic_bits(9F), atomic_cas(9F), atomic_dec(9F), atomic_inc(9F), atomic_or(9F), atomic_swap(9F), membar_ops(9F), attributes(5), atomic_ops(3C)

The *_nv() variants are substantially more expensive on some platforms than the versions that do not return values. Do not use them unless you need to know the new value atomically.