atomic_bits(3C) Standard C Library Functions atomic_bits(3C)NAME
atomic_bits, atomic_set_long_excl, atomic_clear_long_excl - atomic set
and clear bit operations
SYNOPSIS
#include <atomic.h>
int atomic_set_long_excl(volatile ulong_t *target, uint_t bit);
int atomic_clear_long_excl(volatile ulong_t *target, uint_t bit);
DESCRIPTION
The atomic_set_long_excl() and atomic_clear_long_excl() functions per‐
form an exclusive atomic bit set or clear operation on target. The
value of bit specifies the number of the bit to be modified within tar‐
get. Bits are numbered from zero to one less than the maximum number of
bits in a long. If the value of bit falls outside of this range, the
result of the operation is undefined.
RETURN VALUES
The atomic_set_long_excl() and atomic_clear_long_excl() functions
return 0 if bit was successfully set or cleared. They return -1 if bit
was already set or cleared.
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Stable │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOatomic_add(3C), atomic_and(3C), atomic_cas(3C), atomic_dec(3C),
atomic_inc(3C), atomic_or(3C), atomic_swap(3C), membar_ops(3C),
attributes(5), atomic_ops(9F)SunOS 5.10 13 May 2005 atomic_bits(3C)
