di_walk_link(3DEVINFODevice Information Library Functiondi_walk_link(3DEVINFO)NAMEdi_walk_link - traverse libdevinfo links
SYNOPSIS
cc [ flag... ] file... -ldevinfo [ library... ]
#include <libdevinfo.h>
int di_walk_link(di_node_t root, uint_t flag, uint_t endpoint, void
*arg, int (*link_callback)(di_link_t link, void *arg));
PARAMETERS
root The handle to the root node of the subtree to visit.
flag Specify 0. Reserved for future use.
endpoint Specify if the current node being visited should be the
target or source of an link, either DI_LINK_TGT or
DI_LINK_SRC
arg A pointer to caller-specific data.
link_callback The caller-supplied callback function.
DESCRIPTION
The di_walk_link() function visits all nodes in the subtree rooted at
root. For each node found, the caller-supplied function link_call‐
back() is invoked for each link associated with that node where that
node is the specified endpoint of the link. The return value of
link_callback() specifies subsequent walking behavior. See RETURN VAL‐
UES.
RETURN VALUES
Upon successful completion, di_walk_link() returns 0. Otherwise, -1 is
returned and errno is set to indicate the error.
The callback function, link_callback(), can return one of the follow‐
ing:
DI_WALK_CONTINUE Continue walking.
DI_WALK_TERMINATE Terminate the walk immediately.
ERRORS
The di_walk_link() 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)SunOS 5.10 22 Mar 2004 di_walk_link(3DEVINFO)
