Function cib_process_xpath

lib/cib/cib_ops.c:854–994

}

int
cib_process_xpath(const char *op, int options, const char *section, xmlNode * req, xmlNode * input,
                  xmlNode * existing_cib, xmlNode ** result_cib, xmlNode ** answer)
{
    int lpc = 0;
    int max = 0;
    int rc = pcmk_ok;
    gboolean is_query = safe_str_eq(op, CIB_OP_QUERY);

    xmlXPathObjectPtr xpathObj = NULL;

    crm_trace("Processing \"%s\" event", op);

    if (is_query) {
        xpathObj = xpath_search(existing_cib, section);
    } else {
        xpathObj = xpath_search(*result_cib, section);
    }

    if (xpathObj != NULL && xpathObj->nodesetval != NULL) {
        max = xpathObj->nodesetval->nodeNr;
    }

    if (max < 1 && safe_str_eq(op, CIB_OP_DELETE)) {
        crm_debug("%s was already removed", section);

    } else if (max < 1) {
        crm_debug("%s: %s does not exist", op, section);
        rc = -ENXIO;

    } else if (is_query) {
        if (max > 1) {
            *answer = create_xml_node(NULL, "xpath-query");
        }
    }

    for (lpc = 0; lpc < max; lpc++) {
        xmlChar *path = NULL;
        xmlNode *match = getXpathResult(xpathObj, lpc);

        if (match == NULL) {
            continue;
        }

        path = xmlGetNodePath(match);
        crm_debug("Processing %s op for %s (%s)", op, section, path);
        free(path);

        if (safe_str_eq(op, CIB_OP_DELETE)) {
            free_xml(match);
            if ((options & cib_multiple) == 0) {
                break;
            }

        } else if (safe_str_eq(op, CIB_OP_MODIFY)) {
            if (update_xml_child(match, input) == FALSE) {
                rc = -ENXIO;
            } else if ((options & cib_multiple) == 0) {