'\" te
.\" Copyright (c) 2004, Sun Microsystems, Inc. All Rights Reserved.
.TH scf_simple_walk_instances 3SCF "17 Aug 2004" "SunOS 5.11" "Service Configuration Facility Library Functions"
.SH NAME
scf_simple_walk_instances \- observational interface for Service Configuration Facility
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR\&.\|.\|. ] \fIfile\fR\&.\|.\|. \fB-lscf\fR [ \fIlibrary\fR\&.\|.\|. ] 
#include <libscf.h>

\fBint\fR \fBscf_simple_walk_instances\fR(\fBuint_t\fR \fIflags\fR, \fBvoid *\fR\fIprivate\fR,
     \fBint (*\fR\fIinst_callback\fR)(scf_handle_t *, scf_instance_t *, void *));
.fi

.SH DESCRIPTION
.sp
.LP
The \fBscf_simple_walk_instances()\fR function iterates over every service instance in a specified state and calls a callback function provided by the user on each specified instance.
.sp
.LP
The function takes a \fIflags\fR argument to indicate which instance states are involved in the iteration, an opaque buffer to be passed to the callback function, and a callback function with three arguments, a handle, an instance pointer, and an opaque buffer. If the callback function returns a value other than success, iteration is ended, an error is set, and the function returns -1.
.sp
.LP
The handle passed to the callback function is provided to the callback function by the library. This handle is used by the callback function for all low-level allocation involved in the function.
.sp
.LP
The simplified library provides defined constants for the \fIflags\fR argument. The user can use a bitwise OR to apply more than one flag. The \fBSCF_STATE_ALL\fR flag is a bitwise OR of all the other states.The flags are:
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_UNINIT\fR
.RE
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_MAINT\fR
.RE
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_OFFLINE\fR
.RE
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_DISABLED\fR
.RE
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_ONLINE\fR
.RE
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_DEGRADED\fR
.RE
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_ALL\fR
.RE
.SH RETURN VALUES
.sp
.LP
Upon successful completion, \fBscf_simple_walk_instances()\fR returns 0. Otherwise, it returns -1.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityCommitted
_
MT-LevelMT-Safe
.TE

.SH SEE ALSO
.sp
.LP
\fBlibscf\fR(3LIB), \fBattributes\fR(5)