-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-
-#include "graph_instance.h"
-#include "graph_ident.h"
-#include "graph_list.h"
-#include "common.h"
-#include "utils_params.h"
-
-#include <fcgiapp.h>
-#include <fcgi_stdio.h>
-
-struct graph_instance_s /* {{{ */
-{
- graph_ident_t *select;
-
- graph_ident_t **files;
- size_t files_num;
-
- graph_instance_t *next;
-}; /* }}} struct graph_instance_s */
-
-struct def_callback_data_s
-{
- graph_instance_t *inst;
- str_array_t *args;
-};
-typedef struct def_callback_data_s def_callback_data_t;
-
-/*
- * Private functions
- */
-/* Create one DEF for each data source in the file. Called by
- * "inst_get_default_defs" for each file. */
-static graph_def_t *ident_get_default_defs (graph_config_t *cfg, /* {{{ */
- graph_ident_t *ident, graph_def_t *def_head)
-{
- graph_def_t *defs = NULL;
- char *file;
- char **dses = NULL;
- size_t dses_num = 0;
- int status;
- size_t i;
-
- if ((cfg == NULL) || (ident == NULL))
- return (def_head);
-
- file = ident_to_file (ident);
- if (file == NULL)
- {
- fprintf (stderr, "ident_get_default_defs: ident_to_file failed\n");
- return (def_head);
- }
-
- status = ds_list_from_rrd_file (file, &dses_num, &dses);
- if (status != 0)
- {
- free (file);
- return (def_head);
- }
-
- for (i = 0; i < dses_num; i++)
- {
- graph_def_t *def;
-
- def = def_search (def_head, ident, dses[i]);
- if (def != NULL)
- continue;
-
- def = def_create (cfg, ident, dses[i]);
- if (def == NULL)
- continue;
-
- if (defs == NULL)
- defs = def;
- else
- def_append (defs, def);
-
- free (dses[i]);
- }
-
- free (dses);
- free (file);
-
- return (defs);
-} /* }}} int ident_get_default_defs */
-
-/* Create one or more DEFs for each file in the graph instance. The number
- * depends on the number of data sources in each of the files. Called from
- * "inst_get_rrdargs" if no DEFs are available from the configuration.
- * */
-static graph_def_t *inst_get_default_defs (graph_config_t *cfg, /* {{{ */
- graph_instance_t *inst)
-{
- graph_def_t *defs = NULL;
- size_t i;
-
- if ((cfg == NULL) || (inst == NULL))
- return (NULL);
-
- for (i = 0; i < inst->files_num; i++)
- {
- graph_def_t *def;
-
- def = ident_get_default_defs (cfg, inst->files[i], defs);
- if (def == NULL)
- continue;
-
- if (defs == NULL)
- defs = def;
- else
- def_append (defs, def);
- }
-
- return (defs);
-} /* }}} graph_def_t *inst_get_default_defs */
-
-/* Called with each DEF in turn. Calls "def_get_rrdargs" with every appropriate
- * file / DEF pair. */
-static int gl_instance_get_rrdargs_cb (graph_def_t *def, void *user_data) /* {{{ */
-{
- def_callback_data_t *data = user_data;
- graph_instance_t *inst = data->inst;
- str_array_t *args = data->args;
-
- size_t i;
-
- for (i = 0; i < inst->files_num; i++)
- {
- if (!def_matches (def, inst->files[i]))
- continue;
-
- def_get_rrdargs (def, inst->files[i], args);
- }
-
- return (0);
-} /* }}} int gl_instance_get_rrdargs_cb */
-
-static const char *get_part_from_param (const char *prim_key, /* {{{ */
- const char *sec_key)
-{
- const char *val;
-
- val = param (prim_key);
- if (val != NULL)
- return (val);
-
- return (param (sec_key));
-} /* }}} const char *get_part_from_param */
-
-/*
- * Public functions
- */
-graph_instance_t *inst_create (graph_config_t *cfg, /* {{{ */
- const graph_ident_t *ident)
-{
- graph_instance_t *i;
- graph_ident_t *selector;
-
- if ((cfg == NULL) || (ident == NULL))
- return (NULL);
-
- i = malloc (sizeof (*i));
- if (i == NULL)
- return (NULL);
- memset (i, 0, sizeof (*i));
-
- selector = graph_get_selector (cfg);
- if (selector == NULL)
- {
- fprintf (stderr, "inst_create: graph_get_selector failed\n");
- free (i);
- return (NULL);
- }
-
- i->select = ident_copy_with_selector (selector, ident,
- IDENT_FLAG_REPLACE_ANY);
- if (i->select == NULL)
- {
- fprintf (stderr, "inst_create: ident_copy_with_selector failed\n");
- ident_destroy (selector);
- free (i);
- return (NULL);
- }
-
- ident_destroy (selector);
-
- i->files = NULL;
- i->files_num = 0;
-
- i->next = NULL;
-
- return (i);
-} /* }}} graph_instance_t *inst_create */
-
-void inst_destroy (graph_instance_t *inst) /* {{{ */
-{
- graph_instance_t *next;
- size_t i;
-
- if (inst == NULL)
- return;
-
- next = inst->next;
-
- ident_destroy (inst->select);
-
- for (i = 0; i < inst->files_num; i++)
- ident_destroy (inst->files[i]);
- free (inst->files);
-
- free (inst);
-
- inst_destroy (next);
-} /* }}} void inst_destroy */
-
-int inst_add_file (graph_instance_t *inst, /* {{{ */
- const graph_ident_t *file)
-{
- graph_ident_t **tmp;
-
- tmp = realloc (inst->files, sizeof (*inst->files) * (inst->files_num + 1));
- if (tmp == NULL)
- return (ENOMEM);
- inst->files = tmp;
-
- inst->files[inst->files_num] = ident_clone (file);
- if (inst->files[inst->files_num] == NULL)
- return (ENOMEM);
-
- inst->files_num++;
-
- return (0);
-} /* }}} int inst_add_file */
-
-graph_instance_t *inst_get_selected (graph_config_t *cfg) /* {{{ */
-{
- const char *host = get_part_from_param ("inst_host", "host");
- const char *plugin = get_part_from_param ("inst_plugin", "plugin");
- const char *plugin_instance = get_part_from_param ("inst_plugin_instance", "plugin_instance");
- const char *type = get_part_from_param ("inst_type", "type");
- const char *type_instance = get_part_from_param ("inst_type_instance", "type_instance");
- graph_ident_t *ident;
- graph_instance_t *inst;
-
- if (cfg == NULL)
- cfg = gl_graph_get_selected ();
-
- if (cfg == NULL)
- {
- DEBUG ("inst_get_selected: cfg == NULL;\n");
- return (NULL);
- }
-
- if ((host == NULL)
- || (plugin == NULL) || (plugin_instance == NULL)
- || (type == NULL) || (type_instance == NULL))
- {
- DEBUG ("inst_get_selected: A parameter is NULL.\n");
- return (NULL);
- }
-
- ident = ident_create (host, plugin, plugin_instance, type, type_instance);
-
- for (inst = graph_get_instances (cfg); inst != NULL; inst = inst->next)
- {
- if (ident_compare (ident, inst->select) != 0)
- continue;
-
- ident_destroy (ident);
- return (inst);
- }
-
- DEBUG ("inst_get_selected: No match found.\n");
- ident_destroy (ident);
- return (NULL);
-} /* }}} graph_instance_t *inst_get_selected */
-
-int inst_get_rrdargs (graph_config_t *cfg, /* {{{ */
- graph_instance_t *inst,
- str_array_t *args)
-{
- def_callback_data_t data = { inst, args };
- graph_def_t *defs;
- int status;
-
- if ((cfg == NULL) || (inst == NULL) || (args == NULL))
- return (EINVAL);
-
- status = graph_get_rrdargs (cfg, inst, args);
- if (status != 0)
- return (status);
-
- defs = graph_get_defs (cfg);
- if (defs == NULL)
- {
- defs = inst_get_default_defs (cfg, inst);
-
- if (defs == NULL)
- return (-1);
-
- status = def_foreach (defs, gl_instance_get_rrdargs_cb, &data);
-
- def_destroy (defs);
- }
- else
- {
- status = def_foreach (defs, gl_instance_get_rrdargs_cb, &data);
- }
-
- return (status);
-} /* }}} int inst_get_rrdargs */
-
-graph_ident_t *inst_get_selector (graph_instance_t *inst) /* {{{ */
-{
- if (inst == NULL)
- return (NULL);
-
- return (ident_clone (inst->select));
-} /* }}} graph_ident_t *inst_get_selector */
-
-int inst_get_params (graph_config_t *cfg, graph_instance_t *inst, /* {{{ */
- char *buffer, size_t buffer_size)
-{
- graph_ident_t *cfg_select;
-
- if ((cfg == NULL) || (inst == NULL)
- || (buffer == NULL) || (buffer_size < 1))
- return (EINVAL);
-
- cfg_select = graph_get_selector (cfg);
- if (cfg_select == NULL)
- {
- fprintf (stderr, "inst_get_params: graph_get_selector failed");
- return (-1);
- }
-
- buffer[0] = 0;
-
-#define COPY_FIELD(field) do { \
- const char *cfg_f = ident_get_##field (cfg_select); \
- const char *inst_f = ident_get_##field (inst->select); \
- if (strcmp (cfg_f, inst_f) == 0) \
- { \
- strlcat (buffer, #field, buffer_size); \
- strlcat (buffer, "=", buffer_size); \
- strlcat (buffer, cfg_f, buffer_size); \
- } \
- else \
- { \
- strlcat (buffer, "graph_", buffer_size); \
- strlcat (buffer, #field, buffer_size); \
- strlcat (buffer, "=", buffer_size); \
- strlcat (buffer, cfg_f, buffer_size); \
- strlcat (buffer, ";", buffer_size); \
- strlcat (buffer, "inst_", buffer_size); \
- strlcat (buffer, #field, buffer_size); \
- strlcat (buffer, "=", buffer_size); \
- strlcat (buffer, inst_f, buffer_size); \
- } \
-} while (0)
-
- COPY_FIELD(host);
- strlcat (buffer, ";", buffer_size);
- COPY_FIELD(plugin);
- strlcat (buffer, ";", buffer_size);
- COPY_FIELD(plugin_instance);
- strlcat (buffer, ";", buffer_size);
- COPY_FIELD(type);
- strlcat (buffer, ";", buffer_size);
- COPY_FIELD(type_instance);
-
-#undef COPY_FIELD
-
- ident_destroy (cfg_select);
-
- return (0);
-} /* }}} int inst_get_params */
-
-int inst_append (graph_instance_t *head, graph_instance_t *inst) /* {{{ */
-{
- graph_instance_t *ptr;
-
- if ((head == NULL) || (inst == NULL))
- return (EINVAL);
-
- ptr = head;
- while (ptr->next != NULL)
- ptr = ptr->next;
-
- ptr->next = inst;
-
- return (0);
-} /* }}} int inst_append */
-
-int inst_foreach (graph_instance_t *inst, /* {{{ */
- inst_callback_t cb, void *user_data)
-{
- graph_instance_t *ptr;
-
- if ((inst == NULL) || (cb == NULL))
- return (EINVAL);
-
- for (ptr = inst; ptr != NULL; ptr = ptr->next)
- {
- int status;
-
- status = (*cb) (ptr, user_data);
- if (status != 0)
- return (status);
- }
-
- return (0);
-} /* }}} int inst_foreach */
-
-graph_instance_t *inst_find_matching (graph_instance_t *inst, /* {{{ */
- const graph_ident_t *ident)
-{
- graph_instance_t *ptr;
-
- if ((inst == NULL) || (ident == NULL))
- return (NULL);
-
- for (ptr = inst; ptr != NULL; ptr = ptr->next)
- if (ident_matches (ptr->select, ident))
- return (ptr);
-
- return (NULL);
-} /* }}} graph_instance_t *inst_find_matching */
-
-int inst_describe (graph_config_t *cfg, graph_instance_t *inst, /* {{{ */
- char *buffer, size_t buffer_size)
-{
- graph_ident_t *cfg_select;
-
- if ((cfg == NULL) || (inst == NULL)
- || (buffer == NULL) || (buffer_size < 2))
- return (EINVAL);
-
- cfg_select = graph_get_selector (cfg);
- if (cfg_select == NULL)
- {
- fprintf (stderr, "inst_describe: graph_get_selector failed\n");
- return (-1);
- }
-
- buffer[0] = 0;
-
-#define CHECK_FIELD(field) do { \
- if (IS_ANY (ident_get_##field (cfg_select))) \
- { \
- if (buffer[0] != 0) \
- strlcat (buffer, "/", buffer_size); \
- strlcat (buffer, ident_get_##field (inst->select), buffer_size); \
- } \
-} while (0)
-
- CHECK_FIELD (host);
- CHECK_FIELD (plugin);
- CHECK_FIELD (plugin_instance);
- CHECK_FIELD (type);
- CHECK_FIELD (type_instance);
-
-#undef CHECK_FIELD
-
- if (buffer[0] == 0)
- strlcat (buffer, "default", buffer_size);
-
- ident_destroy (cfg_select);
-
- return (0);
-} /* }}} int inst_describe */
-
-/* vim: set sw=2 sts=2 et fdm=marker : */