| ATOMIC_AND(3) | Library Functions Manual | ATOMIC_AND(3) | 
atomic_and, atomic_and_32,
  atomic_and_uint,
  atomic_and_ulong,
  atomic_and_64,
  atomic_and_32_nv,
  atomic_and_uint_nv,
  atomic_and_ulong_nv,
  atomic_and_64_nv —
#include <sys/atomic.h>
void
  
  atomic_and_32(volatile
    uint32_t *ptr, uint32_t
    bits);
void
  
  atomic_and_uint(volatile
    unsigned int *ptr,
    unsigned int bits);
void
  
  atomic_and_ulong(volatile
    unsigned long *ptr,
    unsigned long bits);
void
  
  atomic_and_64(volatile
    uint64_t *ptr, uint64_t
    bits);
uint32_t
  
  atomic_and_32_nv(volatile
    uint32_t *ptr, uint32_t
    bits);
unsigned int
  
  atomic_and_uint_nv(volatile
    unsigned int *ptr,
    unsigned int bits);
unsigned long
  
  atomic_and_ulong_nv(volatile
    unsigned long *ptr,
    unsigned long bits);
uint64_t
  
  atomic_and_64_nv(volatile
    uint64_t *ptr, uint64_t
    bits);
atomic_and family of functions load the value of the
  variable referenced by ptr, perform a bitwise
  ‘and’ with the value bits, and store the
  result back to the variable referenced by ptr in an
  atomic fashion.
The *_nv() variants of these functions
    return the new value.
The 64-bit variants of these functions are available only on
    platforms that can support atomic 64-bit memory access. Applications can
    check for the availability of 64-bit atomic memory operations by testing if
    the pre-processor macro __HAVE_ATOMIC64_OPS is
    defined.
atomic_and functions first appeared in
  NetBSD 5.0.
| April 11, 2007 | NetBSD 10.0 |