treewide: replace memset to 0 with initializers

[collectd.git] / src / modbus.c

diff --git a/src/modbus.c b/src/modbus.c
index 97b98b7..809194b 100644 (file)
--- a/src/modbus.c
+++ b/src/modbus.c
@@ -80,7 +80,7 @@ enum mb_register_type_e /* {{{ */
   REG_TYPE_UINT32,
   REG_TYPE_FLOAT
 }; /* }}} */
-enum mb_mreg_type_e /* {{{ */ 
+enum mb_mreg_type_e /* {{{ */
 {
   MREG_HOLDING,
   MREG_INPUT
@@ -257,7 +257,7 @@ static int mb_submit (mb_host_t *host, mb_slave_t *slave, /* {{{ */
   if ((host == NULL) || (slave == NULL) || (data == NULL))
     return (EINVAL);
 
-  if (host->interval <= 0)
+  if (host->interval == 0)
     host->interval = plugin_get_interval ();
 
   if (slave->instance[0] == 0)
@@ -310,7 +310,9 @@ static int mb_init_connection (mb_host_t *host) /* {{{ */
   if (host == NULL)
     return (EINVAL);
 
+#if COLLECT_DEBUG
   modbus_set_debug (&host->connection, 1);
+#endif
 
   /* We'll do the error handling ourselves. */
   modbus_set_error_handling (&host->connection, NOP_ON_ERROR);
@@ -390,7 +392,9 @@ static int mb_init_connection (mb_host_t *host) /* {{{ */
     }
   }
 
+#if COLLECT_DEBUG
   modbus_set_debug (host->connection, 1);
+#endif
 
   /* We'll do the error handling ourselves. */
   modbus_set_error_recovery (host->connection, 0);
@@ -423,7 +427,7 @@ static int mb_init_connection (mb_host_t *host) /* {{{ */
 static int mb_read_data (mb_host_t *host, mb_slave_t *slave, /* {{{ */
     mb_data_t *data)
 {
-  uint16_t values[2];
+  uint16_t values[2] = { 0 };
   int values_num;
   const data_set_t *ds;
   int status = 0;
@@ -440,7 +444,7 @@ static int mb_read_data (mb_host_t *host, mb_slave_t *slave, /* {{{ */
 
   if (ds->ds_num != 1)
   {
-    ERROR ("Modbus plugin: The type \"%s\" has %i data sources. "
+    ERROR ("Modbus plugin: The type \"%s\" has %zu data sources. "
         "I can only handle data sets with only one data source.",
         data->type, ds->ds_num);
     return (-1);
@@ -455,7 +459,6 @@ static int mb_read_data (mb_host_t *host, mb_slave_t *slave, /* {{{ */
         "is not UINT32.", data->type, DS_TYPE_TO_STRING (ds->ds[0].type));
   }
 
-  memset (values, 0, sizeof (values));
   if ((data->register_type == REG_TYPE_INT32)
       || (data->register_type == REG_TYPE_UINT32)
       || (data->register_type == REG_TYPE_FLOAT))
@@ -499,7 +502,7 @@ static int mb_read_data (mb_host_t *host, mb_slave_t *slave, /* {{{ */
     modbus_free (host->connection);
 #endif
   }
- 
+
 #if LEGACY_LIBMODBUS
   /* Version 2.0.3: Pass the connection struct as a pointer and pass the slave
    * id to each call of "read_holding_registers". */
@@ -716,11 +719,10 @@ static void host_free (void *void_host) /* {{{ */
 
 static int mb_config_add_data (oconfig_item_t *ci) /* {{{ */
 {
-  mb_data_t data;
+  mb_data_t data = { 0 };
   int status;
   int i;
 
-  memset (&data, 0, sizeof (data));
   data.name = NULL;
   data.register_type = REG_TYPE_UINT16;
   data.next = NULL;
@@ -816,13 +818,12 @@ static int mb_config_set_host_address (mb_host_t *host, /* {{{ */
 {
   struct addrinfo *ai_list;
   struct addrinfo *ai_ptr;
-  struct addrinfo  ai_hints;
+  struct addrinfo  ai_hints = { 0 };
   int status;
 
   if ((host == NULL) || (address == NULL))
     return (EINVAL);
 
-  memset (&ai_hints, 0, sizeof (ai_hints));
 #if AI_ADDRCONFIG
   ai_hints.ai_flags |= AI_ADDRCONFIG;
 #endif
@@ -934,10 +935,9 @@ static int mb_config_add_host (oconfig_item_t *ci) /* {{{ */
   int status;
   int i;
 
-  host = malloc (sizeof (*host));
+  host = calloc (1, sizeof (*host));
   if (host == NULL)
     return (ENOMEM);
-  memset (host, 0, sizeof (*host));
   host->slaves = NULL;
 
   status = cf_util_get_string_buffer (ci, host->host, sizeof (host->host));
@@ -1020,18 +1020,15 @@ static int mb_config_add_host (oconfig_item_t *ci) /* {{{ */
   {
     user_data_t ud;
     char name[1024];
-    struct timespec interval = { 0, 0 };
 
     ud.data = host;
     ud.free_func = host_free;
 
     ssnprintf (name, sizeof (name), "modbus-%s", host->host);
 
-    CDTIME_T_TO_TIMESPEC (host->interval, &interval);
-
     plugin_register_complex_read (/* group = */ NULL, name,
         /* callback = */ mb_read,
-        /* interval = */ (host->interval > 0) ? &interval : NULL,
+        /* interval = */ host->interval,
         &ud);
   }
   else