#include <stdlib.h>
#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
#include <string.h>
#include <time.h>
#include <errno.h>
-#include <assert.h>
#include "graph_list.h"
+#include "graph_ident.h"
+#include "graph_def.h"
+#include "graph_config.h"
#include "common.h"
+#include "filesystem.h"
+#include "utils_params.h"
+#include <fcgiapp.h>
+#include <fcgi_stdio.h>
+
+/*
+ * Defines
+ */
#define UPDATE_INTERVAL 10
-static graph_list_t *graph_list = NULL;
-static size_t graph_list_length = 0;
+/*
+ * Global variables
+ */
+static graph_config_t **gl_active = NULL;
+static size_t gl_active_num = 0;
+
+static graph_config_t **gl_staging = NULL;
+static size_t gl_staging_num = 0;
+
static time_t gl_last_update = 0;
-/* "Safe" version of strcmp(3): Either or both pointers may be NULL. */
-static int strcmp_s (const char *s1, const char *s2) /* {{{ */
+/*
+ * Private functions
+ */
+int gl_add_graph_internal (graph_config_t *cfg, /* {{{ */
+ graph_config_t ***gl_array, size_t *gl_array_num)
{
- if ((s1 == NULL) && (s2 == NULL))
- return (0);
- else if (s1 == NULL)
- return (1);
- else if (s2 == NULL)
- return (-1);
- assert ((s1 != NULL) && (s2 != NULL));
+ graph_config_t **tmp;
+
+#define ARRAY_PTR (*gl_array)
+#define ARRAY_SIZE (*gl_array_num)
- return (strcmp (s1, s2));
-} /* }}} int strcmp_s */
+ if (cfg == NULL)
+ return (EINVAL);
-static int gl_compare (const void *p0, const void *p1) /* {{{ */
+ tmp = realloc (ARRAY_PTR, sizeof (*ARRAY_PTR) * (ARRAY_SIZE + 1));
+ if (tmp == NULL)
+ return (ENOMEM);
+ ARRAY_PTR = tmp;
+
+ ARRAY_PTR[ARRAY_SIZE] = cfg;
+ ARRAY_SIZE++;
+
+#undef ARRAY_SIZE
+#undef ARRAY_PTR
+
+ return (0);
+} /* }}} int gl_add_graph_internal */
+
+static int gl_register_file (const graph_ident_t *file, /* {{{ */
+ __attribute__((unused)) void *user_data)
{
- const graph_list_t *gl0 = p0;
- const graph_list_t *gl1 = p1;
- int status;
+ graph_config_t *cfg;
+ int num_graphs = 0;
+ size_t i;
- status = strcmp (gl0->host, gl1->host);
- if (status != 0)
- return (status);
+ for (i = 0; i < gl_active_num; i++)
+ {
+ graph_config_t *cfg = gl_active[i];
+ int status;
- status = strcmp (gl0->plugin, gl1->plugin);
- if (status != 0)
- return (status);
+ if (!graph_matches (cfg, file))
+ continue;
- status = strcmp_s (gl0->plugin_instance, gl1->plugin_instance);
- if (status != 0)
- return (status);
+ status = graph_add_file (cfg, file);
+ if (status != 0)
+ {
+ /* report error */;
+ }
+ else
+ {
+ num_graphs++;
+ }
+ }
- status = strcmp (gl0->type, gl1->type);
- if (status != 0)
- return (status);
+ if (num_graphs == 0)
+ {
+ cfg = graph_create (file);
+ gl_add_graph_internal (cfg, &gl_active, &gl_active_num);
+ graph_add_file (cfg, file);
+ }
- return (strcmp_s (gl0->type_instance, gl1->type_instance));
-} /* }}} int gl_compare */
+ return (0);
+} /* }}} int gl_register_file */
-static void gl_clear_entry (graph_list_t *gl) /* {{{ */
+static const char *get_part_from_param (const char *prim_key, /* {{{ */
+ const char *sec_key)
{
- if (gl == NULL)
- return;
-
- free (gl->host);
- free (gl->plugin);
- free (gl->plugin_instance);
- free (gl->type);
- free (gl->type_instance);
-
- gl->host = NULL;
- gl->plugin = NULL;
- gl->plugin_instance = NULL;
- gl->type = NULL;
- gl->type_instance = NULL;
-} /* }}} void gl_clear_entry */
-
-static void gl_clear (void) /* {{{ */
+ const char *val;
+
+ val = param (prim_key);
+ if (val != NULL)
+ return (val);
+
+ return (param (sec_key));
+} /* }}} const char *get_part_from_param */
+
+static int gl_clear_instances (void) /* {{{ */
{
size_t i;
- for (i = 0; i < graph_list_length; i++)
- gl_clear_entry (graph_list + i);
+ for (i = 0; i < gl_active_num; i++)
+ graph_clear_instances (gl_active[i]);
- free (graph_list);
- graph_list = NULL;
- graph_list_length = 0;
- gl_last_update = 0;
-} /* }}} void gl_clear */
+ return (0);
+} /* }}} int gl_clear_instances */
-static int gl_add_copy (graph_list_t *gl) /* {{{ */
+
+/*
+ * Global functions
+ */
+int gl_add_graph (graph_config_t *cfg) /* {{{ */
{
- graph_list_t *ptr;
- int status;
+ return (gl_add_graph_internal (cfg, &gl_staging, &gl_staging_num));
+} /* }}} int gl_add_graph */
- if (gl == NULL)
- return (EINVAL);
+int gl_config_submit (void) /* {{{ */
+{
+ graph_config_t **old;
+ size_t old_num;
+ size_t i;
- ptr = realloc (graph_list, sizeof (*graph_list) * (graph_list_length + 1));
- if (ptr == NULL)
- return (ENOMEM);
- graph_list = ptr;
-
- ptr = graph_list + graph_list_length;
- memset (ptr, 0, sizeof (*ptr));
- ptr->host = NULL;
- ptr->plugin = NULL;
- ptr->plugin_instance = NULL;
- ptr->type = NULL;
- ptr->type_instance = NULL;
-
-#define DUP_OR_BREAK(member) do { \
- ptr->member = NULL; \
- if (gl->member != NULL) \
- { \
- ptr->member = strdup (gl->member); \
- if (ptr->member == NULL) \
- break; \
- } \
-} while (0)
-
- status = ENOMEM;
- do
- {
- DUP_OR_BREAK(host);
- DUP_OR_BREAK(plugin);
- DUP_OR_BREAK(plugin_instance);
- DUP_OR_BREAK(type);
- DUP_OR_BREAK(type_instance);
+ old = gl_active;
+ old_num = gl_active_num;
- status = 0;
- } while (0);
+ gl_active = gl_staging;
+ gl_active_num = gl_staging_num;
-#undef DUP_OR_BREAK
+ gl_staging = NULL;
+ gl_staging_num = 0;
- if (status != 0)
+ for (i = 0; i < old_num; i++)
{
- free (ptr->host);
- free (ptr->plugin);
- free (ptr->plugin_instance);
- free (ptr->type);
- free (ptr->type_instance);
- return (status);
+ graph_destroy (old[i]);
+ old[i] = NULL;
}
+ free (old);
- graph_list_length++;
return (0);
-} /* }}} int gl_add_copy */
+} /* }}} int graph_config_submit */
-static int callback_type (const char *type, void *user_data) /* {{{ */
+int gl_graph_get_all (gl_cfg_callback callback, /* {{{ */
+ void *user_data)
{
- graph_list_t *gl;
- int status;
-
- if ((type == NULL) || (user_data == NULL))
- return (EINVAL);
+ size_t i;
- gl = user_data;
- if ((gl->type != NULL) || (gl->type_instance != NULL))
+ if (callback == NULL)
return (EINVAL);
- gl->type = strdup (type);
- if (gl->type == NULL)
- return (ENOMEM);
+ gl_update ();
- gl->type_instance = strchr (gl->type, '-');
- if (gl->type_instance != NULL)
+ for (i = 0; i < gl_active_num; i++)
{
- *gl->type_instance = 0;
- gl->type_instance++;
- }
-
- status = gl_add_copy (gl);
+ int status;
- free (gl->type);
- gl->type = NULL;
- gl->type_instance = NULL;
+ status = (*callback) (gl_active[i], user_data);
+ if (status != 0)
+ return (status);
+ }
- return (status);
-} /* }}} int callback_type */
+ return (0);
+} /* }}} int gl_graph_get_all */
-static int callback_plugin (const char *plugin, void *user_data) /* {{{ */
+graph_config_t *gl_graph_get_selected (void) /* {{{ */
{
- graph_list_t *gl;
- int status;
+ const char *host = get_part_from_param ("graph_host", "host");
+ const char *plugin = get_part_from_param ("graph_plugin", "plugin");
+ const char *plugin_instance = get_part_from_param ("graph_plugin_instance", "plugin_instance");
+ const char *type = get_part_from_param ("graph_type", "type");
+ const char *type_instance = get_part_from_param ("graph_type_instance", "type_instance");
+ graph_ident_t *ident;
+ size_t i;
- if ((plugin == NULL) || (user_data == NULL))
- return (EINVAL);
+ if ((host == NULL)
+ || (plugin == NULL) || (plugin_instance == NULL)
+ || (type == NULL) || (type_instance == NULL))
+ return (NULL);
- gl = user_data;
- if ((gl->plugin != NULL) || (gl->plugin_instance != NULL))
- return (EINVAL);
+ ident = ident_create (host, plugin, plugin_instance, type, type_instance);
- gl->plugin = strdup (plugin);
- if (gl->plugin == NULL)
- return (ENOMEM);
+ gl_update ();
- gl->plugin_instance = strchr (gl->plugin, '-');
- if (gl->plugin_instance != NULL)
+ for (i = 0; i < gl_active_num; i++)
{
- *gl->plugin_instance = 0;
- gl->plugin_instance++;
+ if (graph_compare (gl_active[i], ident) != 0)
+ continue;
+
+ ident_destroy (ident);
+ return (gl_active[i]);
}
- status = foreach_type (gl->host, plugin, callback_type, gl);
+ ident_destroy (ident);
+ return (NULL);
+} /* }}} graph_config_t *gl_graph_get_selected */
- free (gl->plugin);
- gl->plugin = NULL;
- gl->plugin_instance = NULL;
+/* gl_instance_get_all, gl_graph_instance_get_all {{{ */
+struct gl_inst_callback_data /* {{{ */
+{
+ graph_config_t *cfg;
+ gl_inst_callback callback;
+ void *user_data;
+}; /* }}} struct gl_inst_callback_data */
- return (status);
-} /* }}} int callback_plugin */
+static int gl_inst_callback_handler (graph_instance_t *inst, /* {{{ */
+ void *user_data)
+{
+ struct gl_inst_callback_data *data = user_data;
+
+ return ((*data->callback) (data->cfg, inst, data->user_data));
+} /* }}} int gl_inst_callback_handler */
-static int callback_host (const char *host, void *user_data) /* {{{ */
+int gl_graph_instance_get_all (graph_config_t *cfg, /* {{{ */
+ gl_inst_callback callback, void *user_data)
{
- graph_list_t *gl;
- int status;
+ struct gl_inst_callback_data data =
+ {
+ cfg,
+ callback,
+ user_data
+ };
- if ((host == NULL) || (user_data == NULL))
+ if ((cfg == NULL) || (callback == NULL))
return (EINVAL);
- gl = user_data;
- if (gl->host != NULL)
- return (EINVAL);
+ return (inst_foreach (graph_get_instances (cfg),
+ gl_inst_callback_handler, &data));
+} /* }}} int gl_graph_instance_get_all */
- gl->host = strdup (host);
- if (gl->host == NULL)
- return (ENOMEM);
+int gl_instance_get_all (gl_inst_callback callback, /* {{{ */
+ void *user_data)
+{
+ size_t i;
- status = foreach_plugin (host, callback_plugin, gl);
+ gl_update ();
- free (gl->host);
- gl->host = NULL;
+ for (i = 0; i < gl_active_num; i++)
+ {
+ int status;
- return (status);
-} /* }}} int callback_host */
+ status = gl_graph_instance_get_all (gl_active[i], callback, user_data);
+ if (status != 0)
+ return (status);
+ }
+
+ return (0);
+} /* }}} int gl_instance_get_all */
+/* }}} gl_instance_get_all, gl_graph_instance_get_all */
int gl_update (void) /* {{{ */
{
time_t now;
- graph_list_t gl;
int status;
+ /*
+ printf ("Content-Type: text/plain\n\n");
+ */
+
now = time (NULL);
if ((gl_last_update + UPDATE_INTERVAL) >= now)
return (0);
- gl_clear ();
-
- memset (&gl, 0, sizeof (gl));
- gl.host = NULL;
- gl.plugin = NULL;
- gl.plugin_instance = NULL;
- gl.type = NULL;
- gl.type_instance = NULL;
+ graph_read_config ();
- status = foreach_host (callback_host, &gl);
+ gl_clear_instances ();
+ status = fs_scan (/* callback = */ gl_register_file, /* user data = */ NULL);
- if (graph_list_length > 1)
- qsort (graph_list, graph_list_length, sizeof (*graph_list), gl_compare);
+ gl_last_update = now;
return (status);
} /* }}} int gl_update */
-int gl_foreach (gl_callback callback, void *user_data) /* {{{ */
-{
- size_t i;
-
- for (i = 0; i < graph_list_length; i++)
- {
- int status;
-
- status = (*callback) (graph_list + i, user_data);
- if (status != 0)
- return (status);
- }
-
- return (0);
-} /* }}} int gl_foreach */
-
/* vim: set sw=2 sts=2 et fdm=marker : */
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