DI_WALK_LNODE(3DEVINFO)DI_WALK_LNODE(3DEVINFO)NAMEdi_walk_lnode - traverse libdevinfo lnodes
SYNOPSIS
cc [ flag... ] file... -ldevinfo [ library... ]
#include <libdevinfo.h>
int di_walk_lnode(di_node_t root, uint_t flag, void *arg,
int (*lnode_callback)(di_lnode_t link, void *arg));
PARAMETERS
root
The handle to the root node of the subtree to visit.
flag
Specify 0. Reserved for future use.
arg
A pointer to caller-specific data.
lnode_callback
The caller-supplied callback function.
DESCRIPTION
The di_walk_lnode() function visits all nodes in the subtree rooted at
root. For each node found, the caller-supplied function lnode_call‐
back() is invoked for each lnode associated with that node. The return
value of lnode_callback() specifies subsequent walking behavior where
that node is the specified endpoint of the link.
RETURN VALUES
Upon successful completion, di_walk_lnode() returns 0. Otherwise, -1
is returned and errno is set to indicate the error.
The callback function lnode_callback() can return one of the following:
DI_WALK_CONTINUE
Continue walking.
DI_WALK_TERMINATE
Terminate the walk immediately.
ERRORS
The di_walk_lnode() function will fail if:
EINVAL
An argument is invalid.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌────────────────────┬─────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├────────────────────┼─────────────────┤
│Interface Stability │ Evolving │
├────────────────────┼─────────────────┤
│MT-Level │ Safe │
└────────────────────┴─────────────────┘
SEE ALSOdi_init(3DEVINFO), libdevinfo(3LIB), attributes(5)
Mar 22, 2004 DI_WALK_LNODE(3DEVINFO)
