void
atomic_or_32(
volatile uint32_t *ptr
, uint32_t bits
)
void
atomic_or_uint(
volatile unsigned int *ptr
, unsigned int bits
)
void
atomic_or_ulong(
volatile unsigned long *ptr
, unsigned long bits
)
void
atomic_or_64(
volatile uint64_t *ptr
, uint64_t bits
)
uint32_t
atomic_or_32_nv(
volatile uint32_t *ptr
, uint32_t bits
)
unsigned
int
atomic_or_uint_nv(
volatile unsigned int *ptr
, unsigned int bits
)
unsigned
long
atomic_or_ulong_nv(
volatile unsigned long *ptr
, unsigned long bits
)
uint64_t
atomic_or_64_nv(
volatile uint64_t *ptr
, uint64_t bits
)
ptr
,
perform a logical
`or'
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.