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6 .TH DI_WALK_LNODE 3DEVINFO "Mar 22, 2004"
8 di_walk_lnode \- traverse libdevinfo lnodes
12 cc [ \fIflag\fR\&.\|.\|. ] \fIfile\fR\&.\|.\|. \fB-ldevinfo\fR [ \fIlibrary\fR\&.\|.\|. ]
13 #include <libdevinfo.h>
15 \fBint\fR \fBdi_walk_lnode\fR(\fBdi_node_t\fR \fIroot\fR, \fBuint_t\fR \fIflag\fR, \fBvoid *\fR\fIarg\fR,
16 \fBint (*\fR\fIlnode_callback\fR)(di_lnode_t \fIlink\fR, void *\fIarg\fR));
26 The handle to the root node of the subtree to visit.
35 Specify 0. Reserved for future use.
44 A pointer to caller-specific data.
50 \fB\fIlnode_callback\fR\fR
53 The caller-supplied callback function.
59 The \fBdi_walk_lnode()\fR function visits all nodes in the subtree rooted at
60 \fIroot\fR. For each node found, the caller-supplied function
61 \fIlnode_callback\fR() is invoked for each lnode associated with that node.
62 The return value of \fIlnode_callback\fR() specifies subsequent walking
63 behavior where that node is the specified \fIendpoint\fR of the link.
67 Upon successful completion, \fBdi_walk_lnode()\fR returns 0. Otherwise, -1 is
68 returned and \fBerrno\fR is set to indicate the error.
71 The callback function \fIlnode_callback\fR() can return one of the following:
75 \fB\fBDI_WALK_CONTINUE\fR\fR
84 \fB\fBDI_WALK_TERMINATE\fR\fR
87 Terminate the walk immediately.
93 The \fBdi_walk_lnode()\fR function will fail if:
100 An argument is invalid.
106 See \fBattributes\fR(5) for descriptions of the following attributes:
114 ATTRIBUTE TYPE ATTRIBUTE VALUE
116 Interface Stability Evolving
124 \fBdi_init\fR(3DEVINFO), \fBlibdevinfo\fR(3LIB), \fBattributes\fR(5)