ATOMIC_INC(3) Library Functions Manual ATOMIC_INC(3)
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
atomic_inc_32(volatile uint32_t *ptr);
atomic_inc_uint(volatile unsigned int *ptr);
atomic_inc_ulong(volatile unsigned long *ptr);
atomic_inc_ptr(volatile void *ptr);
atomic_inc_64(volatile uint64_t *ptr);
atomic_inc_32_nv(volatile uint32_t *ptr);
atomic_inc_uint_nv(volatile unsigned int *ptr);
atomic_inc_ulong_nv(volatile unsigned long *ptr);
atomic_inc_ptr_nv(volatile void *ptr);
atomic_inc_64_nv(volatile uint64_t *ptr);
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.
The atomic_inc functions first appeared in NetBSD 5.0.
NetBSD 6.1.5 April 11, 2007 NetBSD 6.1.5