1atomic_swap(3C)          Standard C Library Functions          atomic_swap(3C)
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NAME

6       atomic_swap,    atomic_swap_8,    atomic_swap_uchar,    atomic_swap_16,
7       atomic_swap_ushort,          atomic_swap_32,          atomic_swap_uint,
8       atomic_swap_ulong, atomic_swap_64, atomic_swap_ptr - atomic swap opera‐
9       tions
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SYNOPSIS

12       #include <atomic.h>
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14       uint8_t atomic_swap_8(volatile uint8_t *target, uint8_t newval);
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17       uchar_t atomic_swap_uchar(volatile uchar_t *target, uchar_t newval);
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20       uint16_t atomic_swap_16(volatile uint16_t *target, uint16_t newval);
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23       ushort_t atomic_swap_ushort(volatile ushort_t *target, ushort_t newval);
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26       uint32_t atomic_swap_32(volatile uint32_t *target, uint32_t newval);
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29       uint_t atomic_swap_uint(volatile uint_t *target, uint_t newval);
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32       ulong_t atomic_swap_ulong(volatile ulong_t *target, ulong_t newval);
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35       uint64_t atomic_swap_64(volatile uint64_t *target, uint64_t newval);
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38       void *atomic_swap_ptr(volatile void *target, void *newval);
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DESCRIPTION

42       These functions enable a swap operation to occur atomically. The  value
43       stored  in target is replaced with newval. The old value is returned by
44       the function.
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RETURN VALUES

47       These functions return the old of *target.
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ERRORS

50       No errors are defined.
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ATTRIBUTES

53       See attributes(5) for descriptions of the following attributes:
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58       ┌─────────────────────────────┬─────────────────────────────┐
59       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
60       ├─────────────────────────────┼─────────────────────────────┤
61       │Interface Stability          │Stable                       │
62       ├─────────────────────────────┼─────────────────────────────┤
63       │MT-Level                     │MT-Safe                      │
64       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

67       atomic_add(3C),   atomic_and(3C),   atomic_bits(3C),    atomic_dec(3C),
68       atomic_inc(3C),    atomic_or(3C),    atomic_cas(3C),    membar_ops(3C),
69       attributes(5), atomic_ops(9F)
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73SunOS 5.11                        13 May 2005                  atomic_swap(3C)
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