do plugin_lookup() only when needed

network.c

@@ -30,13 +30,13 @@ static LIST_HEAD(fwd_list);
 static char *tx_buf, *rx_buf;
 static int tx_pos;
 
-int net_submit(const char *hostname, struct sammler_plugin *plugin, const char *filename, int ds_id, const char *data)
+int net_submit(const char *hostname, const char *pluginname, const char *filename, int ds_id, const char *data)
 {
 	if (list_empty(&fwd_list))
 		return 0;
 
 	int size = snprintf(tx_buf + tx_pos, BUFSIZE - tx_pos, "%s:%s:%s:%d %s\n",
-				hostname, plugin->name, filename, ds_id, data);
+				hostname, pluginname, filename, ds_id, data);
 
 	if (size < 0 || size >= BUFSIZE - tx_pos) {
 		log_print(LOG_ERROR, "net_submit(): arguments too long");
@@ -83,13 +83,7 @@ static int net_receive(int socket, void *privdata)
 			continue;
 		}
 
-		struct sammler_plugin *plugin = plugin_lookup(part[1]);
-		if (plugin == NULL) {
-			log_print(LOG_ERROR, "net_receive(): plugin not found (%s)", part[1]);
-			continue;
-		}
-
-		rrd_submit(part[0], plugin, part[2], atoi(part[3]), data[1]);
+		rrd_submit(part[0], part[1], part[2], atoi(part[3]), data[1]);
 
 		rx_pos = (delim - rx_buf) +1;
 	}

network.h

@@ -5,7 +5,7 @@
 
 int net_init(void);
 
-int net_submit(const char *hostname, struct sammler_plugin *plugin, const char *filename, int ds_id, const char *data);
+int net_submit(const char *hostname, const char *pluginname, const char *filename, int ds_id, const char *data);
 void net_submit_flush(void);
 
 #endif /* _NETWORK_H_ */

plugins.c

@@ -175,10 +175,10 @@ int probe_submit(struct sammler_plugin *plugin, const char *filename, int ds_id,
 		return -1;
 	}
 
-	net_submit(hostname, plugin, filename, ds_id, buffer);
+	net_submit(hostname, plugin->name, filename, ds_id, buffer);
 
 	if (!(submit_flags & SUBMIT_NET_ONLY))
-		rrd_submit(hostname, plugin, filename, ds_id, buffer);
+		rrd_submit(hostname, plugin->name, filename, ds_id, buffer);
 
 	free(buffer);
 	return 0;

rrdtool.c

@@ -81,8 +81,14 @@ static int do_rrd(int (*rrd_func)(int, char **), char *cmd)
 	return retval;
 }
 
-static int rrd_create_file(const char *filename, struct sammler_plugin *plugin, int ds_id)
+static int rrd_create_file(const char *filename, const char *pluginname, int ds_id)
 {
+	struct sammler_plugin *plugin = plugin_lookup(pluginname);
+	if (plugin == NULL) {
+		log_print(LOG_ERROR, "rrd_create_file: plugin not found (%s)", pluginname);
+		return -1;
+	}
+
 	const char *ds_def = plugin->get_ds(ds_id);
 	if (ds_def == NULL) {
 		log_print(LOG_ERROR, "No vaild DS found (%s:%d)", plugin->name, ds_id);
@@ -91,7 +97,7 @@ static int rrd_create_file(const char *filename, struct sammler_plugin *plugin,
 
 	char *buffer = malloc(ARGVSIZE);
 	if (buffer == NULL) {
-		log_print(LOG_ERROR, "append_ds_config: out of memory");
+		log_print(LOG_ERROR, "rrd_create_file: out of memory");
 		return -1;
 	}
 
@@ -193,7 +199,7 @@ static int create_parent_dirs(char *filename)
 	return 0;
 }
 
-int rrd_submit(const char *hostname, struct sammler_plugin *plugin, const char *filename, int ds_id, const char *data)
+int rrd_submit(const char *hostname, const char *pluginname, const char *filename, int ds_id, const char *data)
 {
 	static const char *rrd_dir = NULL;
 	if (rrd_dir == NULL)
@@ -222,7 +228,7 @@ int rrd_submit(const char *hostname, struct sammler_plugin *plugin, const char *
 				return -1;
 			}
 
-			if (rrd_create_file(fullfile, plugin, ds_id) == -1) {
+			if (rrd_create_file(fullfile, pluginname, ds_id) == -1) {
 				free(fullfile);
 				return -1;
 			}

rrdtool.h

@@ -2,7 +2,7 @@
 #define _RRDTOOL_H_
 
 #ifdef WITH_RRD
-int rrd_submit(const char *hostname, struct sammler_plugin *plugin, const char *filename, int ds_id, const char *data);
+int rrd_submit(const char *hostname, const char *pluginname, const char *filename, int ds_id, const char *data);
 #else
 #define rrd_submit(hostname, plugin, filename, ds_id, data)
 #endif