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'\" te .\" Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved. .TH atomic_swap 9F "16 Jan 2006" "Oracle Solaris 11.4" "Kernel Functions" .SH 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 .SH SYNOPSIS .LP .nf #include <sys/atomic.h> \fBuint8_t\fR \fBatomic_swap_8\fR(\fBvolatile uint8_t *\fR\fItarget\fR, \fBuint8_t\fR \fInewval\fR); .fi .LP .nf \fBuchar_t\fR \fBatomic_swap_uchar\fR(\fBvolatile uchar_t *\fR\fItarget\fR, \fBuchar_t\fR \fInewval\fR); .fi .LP .nf \fBuint16_t\fR \fBatomic_swap_16\fR(\fBvolatile uint16_t *\fR\fItarget\fR, \fBuint16_t\fR \fInewval\fR); .fi .LP .nf \fBushort_t\fR \fBatomic_swap_ushort\fR(\fBvolatile ushort_t *\fR\fItarget\fR, \fBushort_t\fR \fInewval\fR); .fi .LP .nf \fBuint32_t\fR \fBatomic_swap_32\fR(\fBvolatile uint32_t *\fR\fItarget\fR, \fBuint32_t\fR \fInewval\fR); .fi .LP .nf \fBuint_t\fR \fBatomic_swap_uint\fR(\fBvolatile uint_t *\fR\fItarget\fR, \fBuint_t\fR \fInewval\fR); .fi .LP .nf \fBulong_t\fR \fBatomic_swap_ulong\fR(\fBvolatile ulong_t *\fR\fItarget\fR, \fBulong_t\fR \fInewval\fR); .fi .LP .nf \fBuint64_t\fR \fBatomic_swap_64\fR(\fBvolatile uint64_t *\fR\fItarget\fR, \fBuint64_t\fR \fInewval\fR); .fi .LP .nf \fBvoid *\fR\fBatomic_swap_ptr\fR(\fBvolatile void *\fR\fItarget\fR, \fBvoid *\fR\fInewval\fR); .fi .SH DESCRIPTION .sp .LP These functions enable a swap operation to occur atomically. The value stored in \fItarget\fR is replaced with \fInewval\fR. The old value is returned by the function. .SH RETURN VALUES .sp .LP These functions return the old of *\fItarget\fR. .SH ERRORS .sp .LP No errors are defined. .SH CONTEXT .sp .LP These functions can be called from user, interrupt, or kernel context. .SH ATTRIBUTES .sp .LP See \fBattributes\fR(7) for descriptions of the following attributes: .sp .TS tab( ) box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) . ATTRIBUTE TYPE ATTRIBUTE VALUE _ Interface Stability Committed .TE .sp .SH SEE ALSO .sp .LP \fBatomic_ops\fR(3C), \fBattributes\fR(7), \fBatomic_add\fR(9F), \fBatomic_and\fR(9F), \fBatomic_bits\fR(9F), \fBatomic_cas\fR(9F), \fBatomic_dec\fR(9F), \fBatomic_inc\fR(9F), \fBatomic_or\fR(9F), \fBmembar_ops\fR(9F)