opensolaris man page for atomic_swap_uchar

atomic_swap(9F) 					   Kernel Functions for Drivers 					   atomic_swap(9F)

NAME
       atomic_swap,  atomic_swap_8,  atomic_swap_uchar,  atomic_swap_16,  atomic_swap_ushort, atomic_swap_32, atomic_swap_uint, atomic_swap_ulong,
       atomic_swap_64, atomic_swap_ptr - atomic swap operations

SYNOPSIS
       #include <sys/atomic.h>

       uint8_t atomic_swap_8(volatile uint8_t *target, uint8_t newval);

       uchar_t atomic_swap_uchar(volatile uchar_t *target, uchar_t newval);

       uint16_t atomic_swap_16(volatile uint16_t *target, uint16_t newval);

       ushort_t atomic_swap_ushort(volatile ushort_t *target, ushort_t newval);

       uint32_t atomic_swap_32(volatile uint32_t *target, uint32_t newval);

       uint_t atomic_swap_uint(volatile uint_t *target, uint_t newval);

       ulong_t atomic_swap_ulong(volatile ulong_t *target, ulong_t newval);

       uint64_t atomic_swap_64(volatile uint64_t *target, uint64_t newval);

       void *atomic_swap_ptr(volatile void *target, void *newval);

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

RETURN VALUES
       These functions return the old of *target.

ERRORS
       No errors are defined.

CONTEXT
       These functions can be called from user, interrupt, or kernel context.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+

SEE ALSO
       atomic_add(9F),	 atomic_and(9F),   atomic_bits(9F),   atomic_dec(9F),	atomic_inc(9F),   atomic_or(9F),  atomic_cas(9F),  membar_ops(9F),
       attributes(5), atomic_ops(3C)

SunOS 5.11							    16 Jan 2006 						   atomic_swap(9F)