#include "graph_types.h"
#include "graph_ident.h"
-#include "graph_list.h"
#include "data_provider.h"
#include "filesystem.h"
#include "oconfig.h"
+#include "common.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <errno.h>
+#include <assert.h>
+
+#include <rrd.h>
struct dp_rrdtool_s
{
return (fs_foreach_dir (abs_dir, scan_plugin_cb, data));
} /* }}} int scan_host_cb */
+static int ident_to_rrdfile (const graph_ident_t *ident, /* {{{ */
+ dp_rrdtool_t *config,
+ char *buffer, size_t buffer_size)
+{
+ const char *plugin_instance;
+ const char *type_instance;
+
+ plugin_instance = ident_get_plugin_instance (ident);
+ if ((plugin_instance != NULL) && (plugin_instance[0] == 0))
+ plugin_instance = NULL;
+
+ type_instance = ident_get_type_instance (ident);
+ if ((type_instance != NULL) && (type_instance[0] == 0))
+ type_instance = NULL;
+
+ buffer[0] = 0;
+
+ strlcat (buffer, config->data_dir, buffer_size);
+ strlcat (buffer, "/", buffer_size);
+
+ strlcat (buffer, ident_get_host (ident), buffer_size);
+ strlcat (buffer, "/", buffer_size);
+ strlcat (buffer, ident_get_plugin (ident), buffer_size);
+ if (plugin_instance != NULL)
+ {
+ strlcat (buffer, "-", buffer_size);
+ strlcat (buffer, plugin_instance, buffer_size);
+ }
+ strlcat (buffer, "/", buffer_size);
+ strlcat (buffer, ident_get_type (ident), buffer_size);
+ if (type_instance != NULL)
+ {
+ strlcat (buffer, "-", buffer_size);
+ strlcat (buffer, type_instance, buffer_size);
+ }
+
+ strlcat (buffer, ".rrd", buffer_size);
+
+ return (0);
+} /* }}} int ident_to_rrdfile */
+
+/*
+ * Callback functions
+ */
static int get_idents (void *priv,
dp_get_idents_callback cb, void *ud)
{ /* {{{ */
static int get_ident_ds_names (void *priv, graph_ident_t *ident,
dp_list_get_ident_ds_names_callback cb, void *ud)
{ /* {{{ */
- priv = NULL;
- ident = NULL;
- cb = NULL;
- ud = NULL;
- return (0);
+ dp_rrdtool_t *config = priv;
+ char file[PATH_MAX + 1];
+ int status;
+
+ char *rrd_argv[] = { "info", file, NULL };
+ int rrd_argc = (sizeof (rrd_argv) / sizeof (rrd_argv[0])) - 1;
+
+ rrd_info_t *info;
+ rrd_info_t *ptr;
+
+ memset (file, 0, sizeof (file));
+ status = ident_to_rrdfile (ident, config, file, sizeof (file));
+ if (status != 0)
+ return (status);
+
+ info = rrd_info (rrd_argc, rrd_argv);
+ if (info == NULL)
+ {
+ printf ("%s: rrd_info (%s) failed.\n", __func__, file);
+ return (-1);
+ }
+
+ for (ptr = info; ptr != NULL; ptr = ptr->next)
+ {
+ size_t keylen;
+ size_t dslen;
+ char *ds;
+
+ if (ptr->key[0] != 'd')
+ continue;
+
+ if (strncmp ("ds[", ptr->key, strlen ("ds[")) != 0)
+ continue;
+
+ keylen = strlen (ptr->key);
+ if (keylen < strlen ("ds[?].index"))
+ continue;
+
+ dslen = keylen - strlen ("ds[].index");
+ assert (dslen >= 1);
+
+ if (strcmp ("].index", ptr->key + (strlen ("ds[") + dslen)) != 0)
+ continue;
+
+ ds = malloc (dslen + 1);
+ if (ds == NULL)
+ continue;
+
+ memcpy (ds, ptr->key + strlen ("ds["), dslen);
+ ds[dslen] = 0;
+
+ status = (*cb) (ident, ds, ud);
+
+ free (ds);
+
+ if (status != 0)
+ break;
+ }
+
+ rrd_info_free (info);
+
+ return (status);
} /* }}} int get_ident_ds_names */
static int get_ident_data (void *priv,
{ /* {{{ */
dp_rrdtool_t *config = priv;
- ident = NULL;
- ds_name = NULL;
- begin.tv_sec = 0;
- end.tv_sec = 0;
- cb = NULL;
- ud = NULL;
+ char filename[PATH_MAX + 1];
+ const char *cf = "AVERAGE"; /* FIXME */
+ time_t rrd_start;
+ time_t rrd_end;
+ unsigned long step;
+ unsigned long ds_count;
+ char **ds_namv;
+ rrd_value_t *data;
+ int status;
+
+ unsigned long ds_index;
+ unsigned long data_index;
+ unsigned long data_length;
+
+ dp_data_point_t *dp = NULL;
+ size_t dp_num = 0;
+
+ status = ident_to_rrdfile (ident, config, filename, sizeof (filename));
+ if (status != 0)
+ return (status);
+
+ rrd_start = (time_t) begin.tv_sec;
+ rrd_end = (time_t) end.tv_sec;
+ step = 0;
+ ds_count = 0;
+ ds_namv = NULL;
+ data = NULL;
+
+ status = rrd_fetch_r (filename, cf,
+ &rrd_start, &rrd_end,
+ &step, &ds_count, &ds_namv,
+ &data);
+ if (status != 0)
+ return (status);
+
+#define BAIL_OUT(ret_status) do { \
+ unsigned long i; \
+ for (i = 0; i < ds_count; i++) \
+ free (ds_namv[i]); \
+ free (ds_namv); \
+ free (data); \
+ free (dp); \
+ return (ret_status); \
+} while (0)
+
+ for (ds_index = 0; ds_index < ds_count; ds_index++)
+ if (strcmp (ds_name, ds_namv[ds_index]) == 0)
+ break;
+
+ if (ds_index >= ds_count)
+ BAIL_OUT (ENOENT);
+
+ /* Number of data points returned. */
+ data_length = (rrd_end - rrd_start) / step;
+
+ dp_num = (size_t) data_length;
+ dp = calloc (dp_num, sizeof (*dp));
+ if (dp == NULL)
+ BAIL_OUT (ENOMEM);
+
+ for (data_index = 0; data_index < data_length; data_index++)
+ {
+ unsigned long index = (ds_count * data_index) + ds_index;
+
+ dp[data_index].time.tv_sec = rrd_start + (data_index * step);
+ dp[data_index].time.tv_nsec = 0;
+ dp[data_index].value = (double) data[index];
+ }
- config = NULL;
+ status = (*cb) (ident, ds_name, dp, dp_num, ud);
+ if (status != 0)
+ BAIL_OUT (status);
- return (EINVAL);
+ BAIL_OUT (0);
+#undef BAIL_OUT
} /* }}} int get_ident_data */
static int print_graph (void *priv,
return (-1);
} /* }}} int print_graph */
-int dp_rrdtool_config (oconfig_item_t *ci)
+int dp_rrdtool_config (const oconfig_item_t *ci)
{ /* {{{ */
dp_rrdtool_t *conf;
dp.private_data = conf;
- gl_register_data_provider ("rrdtool", &dp);
+ data_provider_register ("rrdtool", &dp);
return (0);
} /* }}} int dp_rrdtool_config */
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