treewide: declare loop variable in loop expression

[collectd.git] / src / tail_csv.c

diff --git a/src/tail_csv.c b/src/tail_csv.c
index 2d794fc..79ea466 100644 (file)
--- a/src/tail_csv.c
+++ b/src/tail_csv.c
@@ -22,6 +22,7 @@
  **/
 
 #include "collectd.h"
+
 #include "plugin.h" /* plugin_register_*, plugin_dispatch_values */
 #include "common.h" /* auxiliary functions */
 #include "utils_tail.h"
@@ -85,7 +86,7 @@ static int tcsv_submit (instance_definition_t *id,
 static cdtime_t parse_time (char const *tbuf)
 {
     double t;
-    char *endptr = 0;
+    char *endptr = NULL;
 
     errno = 0;
     t = strtod (tbuf, &endptr);
@@ -288,7 +289,6 @@ static int tcsv_config_get_index(oconfig_item_t *ci, ssize_t *ret_index) {
 static int tcsv_config_add_metric(oconfig_item_t *ci){
     metric_definition_t *md;
     int status;
-    int i;
 
     md = calloc(1, sizeof(*md));
     if (md == NULL)
@@ -306,7 +306,7 @@ static int tcsv_config_add_metric(oconfig_item_t *ci){
         return (-1);
     }
 
-    for (i = 0; i < ci->children_num; ++i){
+    for (int i = 0; i < ci->children_num; ++i){
         oconfig_item_t *option = ci->children + i;
 
         if (strcasecmp("Type", option->key) == 0)
@@ -376,7 +376,6 @@ static int tcsv_config_add_instance_collect(instance_definition_t *id, oconfig_i
     metric_definition_t *metric;
     metric_definition_t **metric_list;
     size_t metric_list_size;
-    int i;
 
     if (ci->values_num < 1) {
         WARNING("tail_csv plugin: The `Collect' config option needs at least one argument.");
@@ -389,7 +388,7 @@ static int tcsv_config_add_instance_collect(instance_definition_t *id, oconfig_i
         return (-1);
     id->metric_list = metric_list;
 
-    for (i = 0; i < ci->values_num; i++) {
+    for (int i = 0; i < ci->values_num; i++) {
         char *metric_name;
 
         if (ci->values[i].type != OCONFIG_TYPE_STRING) {
@@ -419,11 +418,10 @@ static int tcsv_config_add_file(oconfig_item_t *ci)
 {
     instance_definition_t* id;
     int status = 0;
-    int i;
 
     /* Registration variables */
     char cb_name[DATA_MAX_NAME_LEN];
-    user_data_t cb_data;
+    user_data_t cb_data = { 0 };
 
     id = calloc(1, sizeof(*id));
     if (id == NULL)
@@ -443,7 +441,7 @@ static int tcsv_config_add_file(oconfig_item_t *ci)
     /* Use default interval. */
     id->interval = plugin_get_interval();
 
-    for (i = 0; i < ci->children_num; ++i){
+    for (int i = 0; i < ci->children_num; ++i){
         oconfig_item_t *option = ci->children + i;
         status = 0;
 
@@ -484,7 +482,6 @@ static int tcsv_config_add_file(oconfig_item_t *ci)
     }
 
     ssnprintf (cb_name, sizeof (cb_name), "tail_csv/%s", id->path);
-    memset(&cb_data, 0, sizeof(cb_data));
     cb_data.data = id;
     cb_data.free_func = tcsv_instance_definition_destroy;
     status = plugin_register_complex_read(NULL, cb_name, tcsv_read, id->interval, &cb_data);
@@ -500,8 +497,7 @@ static int tcsv_config_add_file(oconfig_item_t *ci)
 
 /* Parse blocks */
 static int tcsv_config(oconfig_item_t *ci){
-    int i;
-    for (i = 0; i < ci->children_num; ++i){
+    for (int i = 0; i < ci->children_num; ++i){
         oconfig_item_t *child = ci->children + i;
         if (strcasecmp("Metric", child->key) == 0)
             tcsv_config_add_metric(child);