'\" te
.\" Copyright (c) 2006, Sun Microsystems, Inc.
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.TH ATOMIC_INC 9F "February 17, 2023"
.SH NAME
atomic_inc, atomic_inc_8, atomic_inc_uchar, atomic_inc_16, atomic_inc_ushort,
atomic_inc_32, atomic_inc_uint, atomic_inc_ulong, atomic_inc_64,
atomic_inc_ptr, atomic_inc_8_nv, atomic_inc_uchar_nv, atomic_inc_16_nv,
atomic_inc_ushort_nv, atomic_inc_32_nv, atomic_inc_uint_nv,
atomic_inc_ulong_nv, atomic_inc_64_nv, atomic_inc_ptr_nv \- atomic increment
operations
.SH SYNOPSIS
.nf
#include <sys/atomic.h>

\fBvoid\fR \fBatomic_inc_8\fR(\fBvolatile uint8_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_uchar\fR(\fBvolatile uchar_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_16\fR(\fBvolatile uint16_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_ushort\fR(\fBvolatile ushort_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_32\fR(\fBvolatile uint32_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_uint\fR(\fBvolatile uint_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_ulong\fR(\fBvolatile ulong_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_64\fR(\fBvolatile uint64_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_ptr\fR(\fBvolatile void *\fR\fItarget\fR);
.fi

.LP
.nf
\fBuint8_t\fR \fBatomic_inc_8_nv\fR(\fBvolatile uint8_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBuchar_t\fR \fBatomic_inc_uchar_nv\fR(\fBvolatile uchar_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBuint16_t\fR \fBatomic_inc_16_nv\fR(\fBvolatile uint16_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBushort_t\fR \fBatomic_inc_ushort_nv\fR(\fBvolatile ushort_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBuint32_t\fR \fBatomic_inc_32_nv\fR(\fBvolatile uint32_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBuint_t\fR \fBatomic_inc_uint_nv\fR(\fBvolatile uint_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBulong_t\fR \fBatomic_inc_ulong_nv\fR(\fBvolatile ulong_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBuint64_t\fR \fBatomic_inc_64_nv\fR(\fBvolatile uint64_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid *\fR\fBatomic_inc_ptr_nv\fR(\fBvolatile void *\fR\fItarget\fR);
.fi

.SH DESCRIPTION
These functions enable the incrementing (by one) of the value stored in
\fItarget\fR to occur in an atomic manner.
.SH RETURN VALUES
The *\fB_nv()\fR variants of these functions return the new value of
\fItarget\fR.
.SH ERRORS
No errors are defined.
.SH CONTEXT
These functions can be called from user, interrupt, or kernel context.
.SH ATTRIBUTES
See \fBattributes\fR(7) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Committed
.TE

.SH SEE ALSO
.BR atomic_ops (3C),
.BR attributes (7),
.BR atomic_add (9F),
.BR atomic_and (9F),
.BR atomic_bits (9F),
.BR atomic_cas (9F),
.BR atomic_dec (9F),
.BR atomic_or (9F),
.BR atomic_swap (9F),
.BR membar_ops (9F)
.SH NOTES
The *\fB_nv()\fR variants are substantially more expensive on some platforms
than the versions that do not return values. Do not use them unless you need to
know the new value \fBatomically\fR.