tail_csv plugin: Print warning and continue when metric is not found.

Previously, when multiple metrics were specified on one "Collect" line and one
didn't exist, all *following* metrics would be ignored. This patch changes this
to continue in this case and configure as many metrics as possible.

diff --git a/src/tail_csv.c b/src/tail_csv.c
index 4794f82..740095d 100644 (file)
--- a/src/tail_csv.c
+++ b/src/tail_csv.c
@@ -377,41 +377,42 @@ static void tcsv_instance_definition_destroy(void *arg){
     sfree(id);
 }
 
-static int tcsv_config_add_instance_collect(instance_definition_t *id, oconfig_item_t *ci){
+static int tcsv_config_add_instance_collect(instance_definition_t *id, oconfig_item_t *ci) {
     metric_definition_t *metric;
     metric_definition_t **metric_list;
-    int i,j,n;
+    size_t metric_list_size;
+    int i;
 
-    if (ci->values_num < 1){
+    if (ci->values_num < 1) {
         WARNING("tail_csv plugin: The `Collect' config option needs at least one argument.");
         return (-1);
     }
 
-    /* Verify string arguments */
-    for (i = 0; i < ci->values_num; ++i)
-        if (ci->values[i].type != OCONFIG_TYPE_STRING){
-            WARNING("tail_csv plugin: All arguments to `Collect' must be strings.");
-            return (-1);
-        }
-
-    n = id->metric_list_len + ci->values_num;
-    metric_list = (metric_definition_t **)realloc(id->metric_list, sizeof(metric_definition_t *) * n);
+    metric_list_size = id->metric_list_len + (size_t) ci->values_num;
+    metric_list = realloc (id->metric_list, sizeof (*id->metric_list) * metric_list_size);
     if (metric_list == NULL)
         return (-1);
-
     id->metric_list = metric_list;
 
-    for (i = id->metric_list_len, j=0; i < n; ++i, ++j){
+    for (i = 0; i < ci->values_num; i++) {
+        char *metric_name;
+
+        if (ci->values[i].type != OCONFIG_TYPE_STRING) {
+            WARNING("tail_csv plugin: All arguments to `Collect' must be strings.");
+            continue;
+        }
+        metric_name = ci->values[i].value.string;
+
         for (metric = metric_head; metric != NULL; metric = metric->next)
-            if (strcasecmp(ci->values[j].value.string, metric->name) == 0)
+            if (strcasecmp(metric_name, metric->name) == 0)
                 break;
 
-        if (metric == NULL){
-            WARNING("tail_csv plugin: `Collect' argument not found `%s'.", ci->values[j].value.string);
-            return (-1);
+        if (metric == NULL) {
+            WARNING ("tail_csv plugin: `Collect' argument not found `%s'.", metric_name);
+            continue;
         }
 
-        id->metric_list[i] = metric;
+        id->metric_list[id->metric_list_len] = metric;
         id->metric_list_len++;
     }