From: Ruben Kerkhof <ruben@rubenkerkhof.com>
Date: Sun, 24 Jul 2016 16:43:38 +0000 (+0200)
Subject: treewide: fix invocation of c_avl_create
X-Git-Tag: collectd-5.6.0~156
X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=1a0d2707d5fb73cd778831acf8af4980225b0bbc;p=collectd.git

treewide: fix invocation of c_avl_create

Fixes the following warning on Solaris:

|c_avl_tree_t *c_avl_create (int (*compare) (const void *, const
void *));
|              ^  line 54, utils_avltree.h
|                 included in line 34, utils_vl_lookup.c
|
|  obj->by_type_tree = c_avl_create ((void *) strcmp);
|                                     ^  line 567,
utils_vl_lookup.c
E_ARG_INCOMPATIBLE_WITH_ARG_L, argument #1 is incompatible with
prototype:
        prototype: pointer to function(pointer to const void, pointer to
const void) returning int : "src/daemon/utils_avltree.h", line 54
        argument : pointer to void

I'll look into writing a generic function to compare avl keys so
we don't need to do all the casting.
---

diff --git a/src/daemon/plugin.c b/src/daemon/plugin.c
index 3a2e2878..9258b885 100644
--- a/src/daemon/plugin.c
+++ b/src/daemon/plugin.c
@@ -976,7 +976,7 @@ static _Bool plugin_is_loaded (char const *name)
 	int status;
 
 	if (plugins_loaded == NULL)
-		plugins_loaded = c_avl_create ((void *) strcasecmp);
+		plugins_loaded = c_avl_create ((int (*) (const void *, const void *)) strcasecmp);
 	assert (plugins_loaded != NULL);
 
 	status = c_avl_get (plugins_loaded, name, /* ret_value = */ NULL);
diff --git a/src/ethstat.c b/src/ethstat.c
index e10021c5..959737a3 100644
--- a/src/ethstat.c
+++ b/src/ethstat.c
@@ -119,7 +119,7 @@ static int ethstat_add_map (const oconfig_item_t *ci) /* {{{ */
 
   if (value_map == NULL)
   {
-    value_map = c_avl_create ((void *) strcmp);
+    value_map = c_avl_create ((int (*) (const void *, const void *)) strcmp);
     if (value_map == NULL)
     {
       sfree (map);
diff --git a/src/gmond.c b/src/gmond.c
index 70436d72..728162ec 100644
--- a/src/gmond.c
+++ b/src/gmond.c
@@ -1107,7 +1107,7 @@ static int gmond_init (void) /* {{{ */
       (mc_receive_port != NULL) ? mc_receive_port : MC_RECEIVE_PORT_DEFAULT,
       /* listen = */ 0);
 
-  staging_tree = c_avl_create ((void *) strcmp);
+  staging_tree = c_avl_create ((int (*) (const void *, const void *)) strcmp);
   if (staging_tree == NULL)
   {
     ERROR ("gmond plugin: c_avl_create failed.");
diff --git a/src/statsd.c b/src/statsd.c
index 57cdbc55..a0c6e4f3 100644
--- a/src/statsd.c
+++ b/src/statsd.c
@@ -355,7 +355,7 @@ static int statsd_handle_set (char const *name, /* {{{ */
 
   /* Make sure metric->set exists. */
   if (metric->set == NULL)
-    metric->set = c_avl_create ((void *) strcmp);
+    metric->set = c_avl_create ((int (*) (const void *, const void *)) strcmp);
 
   if (metric->set == NULL)
   {
@@ -709,7 +709,7 @@ static int statsd_init (void) /* {{{ */
 {
   pthread_mutex_lock (&metrics_lock);
   if (metrics_tree == NULL)
-    metrics_tree = c_avl_create ((void *) strcmp);
+    metrics_tree = c_avl_create ((int (*) (const void *, const void *)) strcmp);
 
   if (!network_thread_running)
   {
diff --git a/src/threshold.c b/src/threshold.c
index d9d7f9e2..77ba3f32 100644
--- a/src/threshold.c
+++ b/src/threshold.c
@@ -874,7 +874,7 @@ static int ut_config (oconfig_item_t *ci)
 
   if (threshold_tree == NULL)
   {
-    threshold_tree = c_avl_create ((void *) strcmp);
+    threshold_tree = c_avl_create ((int (*) (const void *, const void *)) strcmp);
     if (threshold_tree == NULL)
     {
       ERROR ("ut_config: c_avl_create failed.");
diff --git a/src/utils_fbhash.c b/src/utils_fbhash.c
index 41f640af..d1a580cd 100644
--- a/src/utils_fbhash.c
+++ b/src/utils_fbhash.c
@@ -91,7 +91,7 @@ static int fbh_read_file (fbhash_t *h) /* {{{ */
     return (-1);
   }
 
-  tree = c_avl_create ((void *) strcmp);
+  tree = c_avl_create ((int (*) (const void *, const void *)) strcmp);
   if (tree == NULL)
   {
     fclose (fh);
diff --git a/src/utils_vl_lookup.c b/src/utils_vl_lookup.c
index 8a2e5671..6081c90e 100644
--- a/src/utils_vl_lookup.c
+++ b/src/utils_vl_lookup.c
@@ -381,7 +381,7 @@ static by_type_entry_t *lu_search_by_type (lookup_t *obj, /* {{{ */
   }
   by_type->wildcard_plugin_list = NULL;
 
-  by_type->by_plugin_tree = c_avl_create ((void *) strcmp);
+  by_type->by_plugin_tree = c_avl_create ((int (*) (const void *, const void *)) strcmp);
   if (by_type->by_plugin_tree == NULL)
   {
     ERROR ("utils_vl_lookup: c_avl_create failed.");
@@ -564,7 +564,7 @@ lookup_t *lookup_create (lookup_class_callback_t cb_user_class, /* {{{ */
     return (NULL);
   }
 
-  obj->by_type_tree = c_avl_create ((void *) strcmp);
+  obj->by_type_tree = c_avl_create ((int (*) (const void *, const void *)) strcmp);
   if (obj->by_type_tree == NULL)
   {
     ERROR ("utils_vl_lookup: c_avl_create failed.");
diff --git a/src/zone.c b/src/zone.c
index 40c4d2ee..87c65172 100644
--- a/src/zone.c
+++ b/src/zone.c
@@ -48,11 +48,11 @@ typedef struct zone_stats {
 } zone_stats_t;
 
 static int
-zone_compare(const zoneid_t *a, const zoneid_t *b)
+zone_compare(const void *a, const void *b)
 {
-	if (*a == *b)
+	if (*(const zoneid_t *)a == *(const zoneid_t *)b)
 		return(0);
-	if (*a < *b)
+	if (*(const zoneid_t *)a < *(const zoneid_t *)b)
 		return(-1);
 	return(1);
 }
@@ -152,7 +152,7 @@ zone_scandir(DIR *procdir)
 	c_avl_tree_t *tree;
 	zone_stats_t *stats;
 
-	if (!(tree=c_avl_create((void *) zone_compare))) {
+	if (!(tree=c_avl_create(zone_compare))) {
 		WARNING("zone plugin: Failed to create tree");
 		return(NULL);
 	}