#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 <fcgiapp.h>
-#include <fcgi_stdio.h>
+#include <limits.h> /* PATH_MAX */
#include "graph_list.h"
#include "common.h"
+#include "utils_params.h"
+
+#include <fcgiapp.h>
+#include <fcgi_stdio.h>
/*
* Defines
#define ANY_TOKEN "/any/"
#define ALL_TOKEN "/all/"
+#if 0
+# define GL_DEBUG(...) do { \
+ printf ("Content-Type: text/plain\n\n"); \
+ printf (__VA_ARGS__); \
+} while (0)
+#else
+# define GL_DEBUG(...) /**/
+#endif
+
/*
* Data types
*/
char *type_instance;
}; /* }}} struct graph_ident_s */
-struct graph_instance_s;
-typedef struct graph_instance_s graph_instance_t;
-struct graph_instance_s
+struct graph_instance_s /* {{{ */
{
graph_ident_t select;
size_t files_num;
graph_instance_t *next;
-};
+}; /* }}} struct graph_instance_s */
-struct graph_config_s;
-typedef struct graph_config_s graph_config_t;
-struct graph_config_s
+struct graph_config_s /* {{{ */
{
graph_ident_t select;
graph_instance_t *instances;
graph_config_t *next;
-};
+}; /* }}} struct graph_config_s */
/*
* Global variables
/*
* Private functions
*/
+/* FIXME: These "print_*" functions are used for debugging. They should be
+ * removed at some point. */
static int print_files (const graph_instance_t *inst) /* {{{ */
{
size_t i;
return (0);
} /* }}} int print_graphs */
-
/* "Safe" version of strcmp(3): Either or both pointers may be NULL. */
static int strcmp_s (const char *s1, const char *s2) /* {{{ */
{
return (1);
} /* }}} _Bool ident_compare */
+/* Free all the pointers contained in the graph_ident_t but don't free the
+ * graph_ident_t* itself. */
+static void ident_destroy (graph_ident_t *ident) /* {{{ */
+{
+ if (ident == NULL)
+ return;
+
+ free (ident->host);
+ ident->host = NULL;
+ free (ident->plugin);
+ ident->plugin = NULL;
+ free (ident->plugin_instance);
+ ident->plugin_instance = NULL;
+ free (ident->type);
+ ident->type = NULL;
+ free (ident->type_instance);
+ ident->type_instance = NULL;
+} /* }}} void ident_destroy */
+
+static void instance_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);
+
+ instance_destroy (next);
+} /* }}} void instance_destroy */
+
+static void graph_destroy (graph_config_t *cfg) /* {{{ */
+{
+ graph_config_t *next;
+
+ if (cfg == NULL)
+ return;
+
+ next = cfg->next;
+
+ ident_destroy (&cfg->select);
+
+ free (cfg->title);
+ free (cfg->vertical_label);
+
+ instance_destroy (cfg->instances);
+
+ graph_destroy (next);
+} /* }}} void graph_destroy */
+
/*
* Copy part of an identifier. If the "template" value is ANY_TOKEN, "value" is
* copied and returned. This function is used when creating graph_instance_t
return (0);
} /* }}} int register_file */
-static int FIXME_graph_create_from_file (const graph_ident_t *file) /* {{{ */
+static int FIXME_graph_create_from_file (const graph_ident_t *file, /* {{{ */
+ const char *title)
{
graph_config_t *cfg;
cfg->select.type_instance = strdup (file->type_instance);
cfg->title = NULL;
+ if (title != NULL)
+ cfg->title = strdup (title);
cfg->vertical_label = NULL;
cfg->instances = NULL;
cfg->next = NULL;
return (0);
} /* }}} int FIXME_graph_create_from_file */
+/* FIXME: Actually read the config file here. */
static int read_graph_config (void) /* {{{ */
{
if (graph_config_head != NULL)
ident.plugin_instance = ANY_TOKEN;
ident.type = "cpu";
ident.type_instance = ALL_TOKEN;
- FIXME_graph_create_from_file (&ident);
+ FIXME_graph_create_from_file (&ident, "CPU {instance} usage");
ident.plugin = "memory";
ident.plugin_instance = "";
ident.type = "memory";
- FIXME_graph_create_from_file (&ident);
+ FIXME_graph_create_from_file (&ident, "Memory usage");
ident.plugin = "swap";
ident.plugin_instance = "";
ident.type = "swap";
- FIXME_graph_create_from_file (&ident);
+ FIXME_graph_create_from_file (&ident, "Swap");
ident.plugin = ANY_TOKEN;
ident.plugin_instance = ANY_TOKEN;
ident.type = "ps_state";
- FIXME_graph_create_from_file (&ident);
+ FIXME_graph_create_from_file (&ident, "Processes");
ident.host = ALL_TOKEN;
ident.plugin = "cpu";
ident.plugin_instance = ALL_TOKEN;
ident.type = "cpu";
ident.type_instance = "idle";
- FIXME_graph_create_from_file (&ident);
+ FIXME_graph_create_from_file (&ident, "CPU idle overview");
return (0);
} /* }}} int read_graph_config */
-
-
static int gl_compare (const void *p0, const void *p1) /* {{{ */
{
const graph_ident_t *gl0 = p0;
static void gl_clear (void) /* {{{ */
{
size_t i;
+ graph_config_t *cfg;
+
+ cfg = graph_config_head;
+ graph_config_head = NULL;
+ graph_destroy (cfg);
for (i = 0; i < graph_list_length; i++)
gl_clear_entry (graph_list + i);
return (status);
} /* }}} int callback_host */
+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 */
+
+int gl_ident_get_rrdargs (graph_config_t *cfg, /* {{{ */
+ graph_instance_t *inst,
+ graph_ident_t *ident,
+ str_array_t *args)
+{
+ char *file;
+ char **dses = NULL;
+ size_t dses_num = 0;
+ int status;
+ size_t i;
+
+ if ((cfg == NULL) || (inst == NULL) || (ident == NULL) || (args == NULL))
+ return (EINVAL);
+
+ file = ident_to_file (ident);
+ if (file == NULL)
+ {
+ GL_DEBUG ("gl_ident_get_rrdargs: ident_to_file returned NULL.\n");
+ return (-1);
+ }
+
+ GL_DEBUG ("gl_ident_get_rrdargs: file = %s;\n", file);
+
+ status = ds_list_from_rrd_file (file, &dses_num, &dses);
+ if (status != 0)
+ {
+ free (file);
+ return (status);
+ }
+
+ for (i = 0; i < dses_num; i++)
+ {
+ int index;
+
+ GL_DEBUG ("gl_ident_get_rrdargs: ds[%lu] = %s;\n", (unsigned long) i, dses[i]);
+
+ index = array_argc (args);
+
+ /* CDEFs */
+ array_append_format (args, "DEF:def_%04i_min=%s:%s:MIN",
+ index, file, dses[i]);
+ array_append_format (args, "DEF:def_%04i_avg=%s:%s:AVERAGE",
+ index, file, dses[i]);
+ array_append_format (args, "DEF:def_%04i_max=%s:%s:MAX",
+ index, file, dses[i]);
+ /* VDEFs */
+ array_append_format (args, "VDEF:vdef_%04i_min=def_%04i_min,MINIMUM",
+ index, index);
+ array_append_format (args, "VDEF:vdef_%04i_avg=def_%04i_avg,AVERAGE",
+ index, index);
+ array_append_format (args, "VDEF:vdef_%04i_max=def_%04i_max,MAXIMUM",
+ index, index);
+ array_append_format (args, "VDEF:vdef_%04i_lst=def_%04i_avg,LAST",
+ index, index);
+
+ /* Graph part */
+ array_append_format (args, "LINE1:def_%04i_avg#%06"PRIx32":%s",
+ index, get_random_color (), dses[i]);
+ array_append_format (args, "GPRINT:vdef_%04i_min:%%lg min,", index);
+ array_append_format (args, "GPRINT:vdef_%04i_avg:%%lg avg,", index);
+ array_append_format (args, "GPRINT:vdef_%04i_max:%%lg max,", index);
+ array_append_format (args, "GPRINT:vdef_%04i_lst:%%lg last\\l", index);
+
+ free (dses[i]);
+ }
+ free (dses);
+
+ free (file);
+
+ return (0);
+} /* }}} int gl_ident_get_rrdargs */
+
/*
* Global functions
*/
+char *ident_to_file (const graph_ident_t *ident) /* {{{ */
+{
+ char buffer[PATH_MAX];
+
+ buffer[0] = 0;
+
+ strlcat (buffer, DATA_DIR, sizeof (buffer));
+ strlcat (buffer, "/", sizeof (buffer));
+
+ strlcat (buffer, ident->host, sizeof (buffer));
+ strlcat (buffer, "/", sizeof (buffer));
+ strlcat (buffer, ident->plugin, sizeof (buffer));
+ if (ident->plugin_instance[0] != 0)
+ {
+ strlcat (buffer, "-", sizeof (buffer));
+ strlcat (buffer, ident->plugin_instance, sizeof (buffer));
+ }
+ strlcat (buffer, "/", sizeof (buffer));
+ strlcat (buffer, ident->type, sizeof (buffer));
+ if (ident->type_instance[0] != 0)
+ {
+ strlcat (buffer, "-", sizeof (buffer));
+ strlcat (buffer, ident->type_instance, sizeof (buffer));
+ }
+
+ strlcat (buffer, ".rrd", sizeof (buffer));
+
+ return (strdup (buffer));
+} /* }}} char *ident_to_file */
+
+int gl_instance_get_params (graph_config_t *cfg, graph_instance_t *inst, /* {{{ */
+ char *buffer, size_t buffer_size)
+{
+ if ((inst == NULL) || (buffer == NULL) || (buffer_size < 1))
+ return (EINVAL);
+
+ buffer[0] = 0;
+
+#define COPY_FIELD(field) do { \
+ if (strcmp (cfg->select.field, inst->select.field) == 0) \
+ { \
+ strlcat (buffer, #field, buffer_size); \
+ strlcat (buffer, "=", buffer_size); \
+ strlcat (buffer, cfg->select.field, buffer_size); \
+ } \
+ else \
+ { \
+ strlcat (buffer, "graph_", buffer_size); \
+ strlcat (buffer, #field, buffer_size); \
+ strlcat (buffer, "=", buffer_size); \
+ strlcat (buffer, cfg->select.field, buffer_size); \
+ strlcat (buffer, ";", buffer_size); \
+ strlcat (buffer, "inst_", buffer_size); \
+ strlcat (buffer, #field, buffer_size); \
+ strlcat (buffer, "=", buffer_size); \
+ strlcat (buffer, inst->select.field, 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
+
+ return (0);
+} /* }}} int gl_instance_get_params */
+
+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_instance_t *inst;
+
+ if (cfg == NULL)
+ cfg = graph_get_selected ();
+
+ if (cfg == NULL)
+ {
+ GL_DEBUG ("inst_get_selected: cfg == NULL;\n");
+ return (NULL);
+ }
+
+ if ((host == NULL)
+ || (plugin == NULL) || (plugin_instance == NULL)
+ || (type == NULL) || (type_instance == NULL))
+ {
+ GL_DEBUG ("inst_get_selected: A parameter is NULL.\n");
+ return (NULL);
+ }
+
+ for (inst = cfg->instances; inst != NULL; inst = inst->next)
+ {
+ if ((strcmp (inst->select.host, host) != 0)
+ || (strcmp (inst->select.plugin, plugin) != 0)
+ || (strcmp (inst->select.plugin_instance, plugin_instance) != 0)
+ || (strcmp (inst->select.type, type) != 0)
+ || (strcmp (inst->select.type_instance, type_instance) != 0))
+ continue;
+
+ return (inst);
+ }
+
+ GL_DEBUG ("inst_get_selected: No match found.\n");
+ return (NULL);
+} /* }}} graph_instance_t *inst_get_selected */
+
+int gl_graph_get_all (gl_cfg_callback callback, /* {{{ */
+ void *user_data)
+{
+ graph_config_t *cfg;
+
+ if (callback == NULL)
+ return (EINVAL);
+
+ gl_update ();
+
+ for (cfg = graph_config_head; cfg != NULL; cfg = cfg->next)
+ {
+ int status;
+
+ status = (*callback) (cfg, user_data);
+ if (status != 0)
+ return (status);
+ }
+
+ return (0);
+} /* }}} int gl_graph_get_all */
+
+graph_config_t *graph_get_selected (void) /* {{{ */
+{
+ 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_config_t *cfg;
+
+ if ((host == NULL)
+ || (plugin == NULL) || (plugin_instance == NULL)
+ || (type == NULL) || (type_instance == NULL))
+ {
+ printf ("Content-Type: text/plain\n\n");
+ printf ("graph_get_selected(): A param is NULL.\n");
+ return (NULL);
+ }
+
+ gl_update ();
+
+ for (cfg = graph_config_head; cfg != NULL; cfg = cfg->next)
+ {
+ if ((strcmp (cfg->select.host, host) != 0)
+ || (strcmp (cfg->select.plugin, plugin) != 0)
+ || (strcmp (cfg->select.plugin_instance, plugin_instance) != 0)
+ || (strcmp (cfg->select.type, type) != 0)
+ || (strcmp (cfg->select.type_instance, type_instance) != 0))
+ continue;
+
+ return (cfg);
+ }
+
+ printf ("Content-Type: text/plain\n\n");
+ printf ("graph_get_selected(): No matching graph found.\n");
+
+ return (NULL);
+} /* }}} graph_config_t *graph_get_selected */
+
+int gl_graph_instance_get_all (graph_config_t *cfg, /* {{{ */
+ gl_inst_callback callback, void *user_data)
+{
+ graph_instance_t *inst;
+
+ if ((cfg == NULL) || (callback == NULL))
+ return (EINVAL);
+
+ for (inst = cfg->instances; inst != NULL; inst = inst->next)
+ {
+ int status;
+
+ status = (*callback) (cfg, inst, user_data);
+ if (status != 0)
+ return (status);
+ }
+
+ return (0);
+} /* }}} int gl_graph_instance_get_all */
+
+int gl_graph_get_title (graph_config_t *cfg, /* {{{ */
+ char *buffer, size_t buffer_size)
+{
+ if ((cfg == NULL) || (buffer == NULL) || (buffer_size < 1))
+ return (EINVAL);
+
+ buffer[0] = 0;
+ strlcat (buffer, cfg->select.host, buffer_size);
+ strlcat (buffer, "/", buffer_size);
+ strlcat (buffer, cfg->select.plugin, buffer_size);
+ if (cfg->select.plugin_instance[0] != 0)
+ {
+ strlcat (buffer, "-", buffer_size);
+ strlcat (buffer, cfg->select.plugin_instance, buffer_size);
+ }
+ strlcat (buffer, "/", buffer_size);
+ strlcat (buffer, cfg->select.type, buffer_size);
+ if (cfg->select.type_instance[0] != 0)
+ {
+ strlcat (buffer, "-", buffer_size);
+ strlcat (buffer, cfg->select.type_instance, buffer_size);
+ }
+
+ return (0);
+} /* }}} int gl_graph_get_title */
+
+int gl_instance_get_all (gl_inst_callback callback, /* {{{ */
+ void *user_data)
+{
+ graph_config_t *cfg;
+
+ gl_update ();
+
+ for (cfg = graph_config_head; cfg != NULL; cfg = cfg->next)
+ {
+ graph_instance_t *inst;
+
+ for (inst = cfg->instances; inst != NULL; inst = inst->next)
+ {
+ int status;
+
+ status = (*callback) (cfg, inst, user_data);
+ if (status != 0)
+ return (status);
+ }
+ }
+
+ return (0);
+} /* }}} int gl_instance_get_all */
+
+int gl_instance_get_rrdargs (graph_config_t *cfg, /* {{{ */
+ graph_instance_t *inst,
+ str_array_t *args)
+{
+ size_t i;
+
+ if ((cfg == NULL) || (inst == NULL) || (args == NULL))
+ return (EINVAL);
+
+ if (cfg->title != NULL)
+ {
+ array_append (args, "-t");
+ array_append (args, cfg->title);
+ }
+
+ for (i = 0; i < inst->files_num; i++)
+ {
+ int status;
+
+ status = gl_ident_get_rrdargs (cfg, inst, inst->files + i, args);
+ if (status != 0)
+ return (status);
+ }
+
+ return (0);
+} /* }}} int gl_instance_get_rrdargs */
+
+/* DELETEME */
+
int gl_update (void) /* {{{ */
{
time_t now;
graph_ident_t gl;
int status;
+ /*
printf ("Content-Type: text/plain\n\n");
-
- read_graph_config ();
+ */
now = time (NULL);
gl_clear ();
+ read_graph_config ();
+
memset (&gl, 0, sizeof (gl));
gl.host = NULL;
gl.plugin = NULL;
status = foreach_host (callback_host, &gl);
- print_graphs ();
+ /* print_graphs (); */
if (graph_list_length > 1)
qsort (graph_list, graph_list_length, sizeof (*graph_list), gl_compare);
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