experiments/clixon
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* Regexp improvements

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* Added check for libxml in configure';
  * Added clixon_util_regexp utility function
* Yang state get improvements
  * Integrated state and config into same tree on retrieval, not separate trees
  * Added cli functions `cli_show_config_state()` and `cli_show_auto_state()` for showing combined config and state info.
  * Added integrated state in the main example: `interface/oper-state`.
  * Added performance tests for getting state, see [test/test_perf_state.sh].
This commit is contained in:
Olof hagsand 2019-05-20 16:03:29 +02:00
parent c17784cfe9
commit bc54f2d04c
26 changed files with 895 additions and 185 deletions
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35
example/main/example_backend.c
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@ -264,7 +264,7 @@ example_copy_extra(clicon_handle h, /* Clicon handle */
/*! Called to get state data from plugin
* @param[in] h Clicon handle
* @param[in] xpath String with XPATH syntax. or NULL for all
* @param[in] xtop XML tree, <config/> on entry.
* @param[in] xstate XML tree, <config/> on entry.
* @retval 0 OK
* @retval -1 Error
* @see xmldb_get
@ -285,13 +285,34 @@ example_statedata(clicon_handle h,
{
int retval = -1;
cxobj **xvec = NULL;
size_t xlen;
cbuf *cb = cbuf_new();
int i;
cxobj *xt = NULL;
char *name;
if (!_state)
goto ok;
/* Example of (static) statedata, real code would poll state
* Note this state needs to be accomanied by yang snippet
* above
*/
/* Example of statedata, in this case merging state data with
* state information. In this case adding dummy interface operation state
* to configured interfaces.
* Get config according to xpath */
if (xmldb_get(h, "running", xpath, 1, &xt, NULL) < 0)
goto done;
/* From that subset, only get the names */
if (xpath_vec(xt, "/interfaces/interface/name", &xvec, &xlen) < 0)
goto done;
if (xlen){
cprintf(cb, "<interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">");
for (i=0; i<xlen; i++){
name = xml_body(xvec[i]);
cprintf(cb, "<interface><name>%s</name><oper-status>up</oper-status></interface>", name);
}
cprintf(cb, "</interfaces>");
if (xml_parse_string(cbuf_get(cb), NULL, &xstate) < 0)
goto done;
}
if (xml_parse_string("<state xmlns=\"urn:example:clixon\">"
"<op>42</op>"
"<op>41</op>"
@ -301,6 +322,10 @@ example_statedata(clicon_handle h,
ok:
retval = 0;
done:
if (xt)
xml_free(xt);
if (cb)
cbuf_free(cb);
if (xvec)
free(xvec);
return retval;