Fix test for tables and empty instance

[collectd.git] / src / curl_xml.c

diff --git a/src/curl_xml.c b/src/curl_xml.c
index 46e0d49..13f6680 100644 (file)
--- a/src/curl_xml.c
+++ b/src/curl_xml.c
@@ -344,7 +344,7 @@ static int cx_handle_instance_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
   /* If the base xpath returns more than one block, the result is assumed to be
    * a table. The `Instnce' option is not optional in this case. Check for the
    * condition and inform the user. */
-  if (is_table && (vl->type_instance == NULL))
+  if (is_table && (xpath->instance == NULL))
   {
     WARNING ("curl_xml plugin: "
         "Base-XPath %s is a table (more than one result was returned), "
@@ -365,7 +365,7 @@ static int cx_handle_instance_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
     instance_node = instance_node_obj->nodesetval;
     tmp_size = (instance_node) ? instance_node->nodeNr : 0;
 
-    if ( (tmp_size == 0) && (is_table) )
+    if (tmp_size <= 0)
     {
       WARNING ("curl_xml plugin: "
           "relative xpath expression for 'InstanceFrom' \"%s\" doesn't match "
@@ -550,9 +550,16 @@ static int cx_curl_perform (cx_t *db, CURL *curl) /* {{{ */
   long rc;
   char *ptr;
   char *url;
+  url = db->url;
 
   db->buffer_fill = 0; 
   status = curl_easy_perform (curl);
+  if (status != CURLE_OK)
+  {
+    ERROR ("curl_xml plugin: curl_easy_perform failed with status %i: %s (%s)",
+           status, db->curl_errbuf, url);
+    return (-1);
+  }
 
   curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &url);
   curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &rc);
@@ -565,13 +572,6 @@ static int cx_curl_perform (cx_t *db, CURL *curl) /* {{{ */
     return (-1);
   }
 
-  if (status != 0)
-  {
-    ERROR ("curl_xml plugin: curl_easy_perform failed with status %i: %s (%s)",
-           status, db->curl_errbuf, url);
-    return (-1);
-  }
-
   ptr = db->buffer;
 
   status = cx_parse_stats_xml(BAD_CAST ptr, db);
@@ -737,7 +737,7 @@ static int cx_init_curl (cx_t *db) /* {{{ */
     return (-1);
   }
 
-  curl_easy_setopt (db->curl, CURLOPT_NOSIGNAL, 1);
+  curl_easy_setopt (db->curl, CURLOPT_NOSIGNAL, 1L);
   curl_easy_setopt (db->curl, CURLOPT_WRITEFUNCTION, cx_curl_callback);
   curl_easy_setopt (db->curl, CURLOPT_WRITEDATA, db);
   curl_easy_setopt (db->curl, CURLOPT_USERAGENT,
@@ -926,9 +926,18 @@ static int cx_config (oconfig_item_t *ci) /* {{{ */
   return (0);
 } /* }}} int cx_config */
 
+static int cx_init (void) /* {{{ */
+{
+  /* Call this while collectd is still single-threaded to avoid
+   * initialization issues in libgcrypt. */
+  curl_global_init (CURL_GLOBAL_SSL);
+  return (0);
+} /* }}} int cx_init */
+
 void module_register (void)
 {
   plugin_register_complex_config ("curl_xml", cx_config);
+  plugin_register_init ("curl_xml", cx_init);
 } /* void module_register */
 
 /* vim: set sw=2 sts=2 et fdm=marker : */