/**
* collectd - src/modbus.c
* Copyright (C) 2010 noris network AG
+ * Copyright (C) 2011 Universiteit Gent
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
*
* Authors:
* Florian Forster <octo at noris.net>
+ * Ivo De Decker <ivo.dedecker at ugent.be>
**/
#include "collectd.h"
mb_data_t *next;
}; /* }}} */
+struct mb_datagroup_s;
+typedef struct mb_datagroup_s mb_datagroup_t;
+struct mb_datagroup_s /* {{{ */
+{
+ char *name;
+ mb_data_t *collect;
+
+ mb_datagroup_t *next;
+}; /* }}} */
+
struct mb_slave_s /* {{{ */
{
int id;
* Global variables
*/
static mb_data_t *data_definitions = NULL;
+static mb_datagroup_t *data_groups = NULL;
/*
* Functions
return (data_copy (dst, ptr));
} /* }}} int data_copy_by_name */
+static mb_datagroup_t *datagroup_get_by_name (mb_datagroup_t *src, /* {{{ */
+ const char *name)
+{
+ mb_datagroup_t *ptr;
+
+ if (name == NULL)
+ return (NULL);
+
+ for (ptr = src; ptr != NULL; ptr = ptr->next)
+ if (strcasecmp (ptr->name, name) == 0)
+ return (ptr);
+
+ return (NULL);
+} /* }}} mb_datagroup_t *datagroup_get_by_name */
+
+static int datagroup_append (mb_datagroup_t **dst, mb_datagroup_t *src) /* {{{ */
+{
+ mb_datagroup_t *ptr;
+
+ if ((dst == NULL) || (src == NULL))
+ return (EINVAL);
+
+ ptr = *dst;
+
+ if (ptr == NULL)
+ {
+ *dst = src;
+ return (0);
+ }
+
+ while (ptr->next != NULL)
+ ptr = ptr->next;
+
+ ptr->next = src;
+
+ return (0);
+} /* }}} int datagroup_append */
+
+/* Copy a single mb_datagroup_t and append it to another list. */
+static int datagroup_copy (mb_datagroup_t **dst, const mb_datagroup_t *src) /* {{{ */
+{
+ mb_datagroup_t *tmp;
+ int status;
+
+ if ((dst == NULL) || (src == NULL))
+ return (EINVAL);
+
+ tmp = malloc (sizeof (*tmp));
+ if (tmp == NULL)
+ return (ENOMEM);
+ memcpy (tmp, src, sizeof (*tmp));
+ tmp->name = NULL;
+ tmp->next = NULL;
+
+ tmp->name = strdup (src->name);
+ if (tmp->name == NULL)
+ {
+ sfree (tmp);
+ return (ENOMEM);
+ }
+
+ status = datagroup_append (dst, tmp);
+ if (status != 0)
+ {
+ sfree (tmp->name);
+ sfree (tmp);
+ return (status);
+ }
+
+ return (0);
+} /* }}} int datagroup_copy */
+
/* Read functions */
static int mb_submit (mb_host_t *host, mb_slave_t *slave, /* {{{ */
data_copy_by_name (&slave->collect, data_definitions, buffer);
status = 0; /* continue after failure. */
}
+ else if (strcasecmp ("Datagroup", child->key) == 0)
+ {
+ char buffer[1024];
+ mb_datagroup_t *ds;
+
+ status = cf_util_get_string_buffer (child, buffer, sizeof (buffer));
+ if (status == 0) {
+ ds = datagroup_get_by_name (data_groups, buffer);
+ if (ds) {
+ mb_data_t *data;
+ for (data = ds->collect; data != NULL; data = data->next)
+ {
+ data_copy (&slave->collect, data);
+ }
+ }
+ }
+ status = 0; /* continue after failure. */
+ }
else
{
ERROR ("Modbus plugin: Unknown configuration option: %s", child->key);
return (status);
} /* }}} int mb_config_add_host */
+
+static int mb_config_add_datagroup (oconfig_item_t *ci) /* {{{ */
+{
+ mb_datagroup_t datagroup;
+ int status;
+ int i;
+
+ memset (&datagroup, 0, sizeof (datagroup));
+ datagroup.name = NULL;
+ datagroup.collect = NULL;
+ datagroup.next = NULL;
+
+ status = cf_util_get_string (ci, &datagroup.name);
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+ status = 0;
+
+ if (strcasecmp ("Collect", child->key) == 0)
+ {
+ char buffer[1024];
+ status = cf_util_get_string_buffer (child, buffer, sizeof (buffer));
+ if (status == 0) {
+ data_copy_by_name (&datagroup.collect, data_definitions, buffer);
+ }
+ status = 0; /* continue after failure. */
+ }
+ else
+ {
+ ERROR ("Modbus plugin: Unknown configuration option: %s", child->key);
+ status = -1;
+ }
+
+ if (status != 0)
+ break;
+ } /* for (i = 0; i < ci->children_num; i++) */
+
+ if ((status == 0) && (datagroup.collect == NULL))
+ status = EINVAL;
+
+ if (status == 0)
+ datagroup_copy (&data_groups, &datagroup);
+
+ return (status);
+} /* }}} int mb_config_add_datagroup */
+
static int mb_config (oconfig_item_t *ci) /* {{{ */
{
int i;
mb_config_add_data (child);
else if (strcasecmp ("Host", child->key) == 0)
mb_config_add_host (child);
+ else if (strcasecmp ("Datagroup", child->key) == 0)
+ mb_config_add_datagroup (child);
else
ERROR ("Modbus plugin: Unknown configuration option: %s", child->key);
}