ATOMIC_INC(3)						   BSD Library Functions Manual 					     ATOMIC_INC(3)

NAME

     atomic_inc, atomic_inc_32, atomic_inc_uint, atomic_inc_ulong, atomic_inc_ptr, atomic_inc_64, atomic_inc_32_nv, atomic_inc_uint_nv,
     atomic_inc_ulong_nv, atomic_inc_ptr_nv, atomic_inc_64_nv -- atomic increment operations

SYNOPSIS

     #include <sys/atomic.h>

     void
     atomic_inc_32(volatile uint32_t *ptr);

     void
     atomic_inc_uint(volatile unsigned int *ptr);

     void
     atomic_inc_ulong(volatile unsigned long *ptr);

     void
     atomic_inc_ptr(volatile void *ptr);

     void
     atomic_inc_64(volatile uint64_t *ptr);

     uint32_t
     atomic_inc_32_nv(volatile uint32_t *ptr);

     unsigned int
     atomic_inc_uint_nv(volatile unsigned int *ptr);

     unsigned long
     atomic_inc_ulong_nv(volatile unsigned long *ptr);

     void *
     atomic_inc_ptr_nv(volatile void *ptr);

     uint64_t
     atomic_inc_64_nv(volatile uint64_t *ptr);

DESCRIPTION

     The atomic_inc family of functions increment (by one) 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.

SEE ALSO

     atomic_ops(3)

HISTORY

     The atomic_inc functions first appeared in NetBSD 5.0.

BSD
								  April 11, 2007							       BSD