+/**
+ * collection4 - graph_instance.c
+ * Copyright (C) 2010 Florian octo Forster
+ *
+ * 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 the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ *
+ * Authors:
+ * Florian octo Forster <ff at octo.it>
+ **/
+
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <time.h>
+#include <assert.h>
#include "graph_instance.h"
+#include "graph.h"
+#include "graph_def.h"
#include "graph_ident.h"
#include "graph_list.h"
#include "common.h"
-#include "utils_params.h"
+#include "utils_cgi.h"
#include <fcgiapp.h>
#include <fcgi_stdio.h>
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;
+ rrd_args_t *args;
};
typedef struct def_callback_data_s def_callback_data_t;
{
def_callback_data_t *data = user_data;
graph_instance_t *inst = data->inst;
- str_array_t *args = data->args;
+ rrd_args_t *args = data->args;
size_t i;
return (param (sec_key));
} /* }}} const char *get_part_from_param */
+static graph_ident_t *inst_get_selector_from_params (void) /* {{{ */
+{
+ 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;
+
+ if ((host == NULL)
+ || (plugin == NULL) || (plugin_instance == NULL)
+ || (type == NULL) || (type_instance == NULL))
+ {
+ fprintf (stderr, "inst_get_selected: A parameter is NULL\n");
+ return (NULL);
+ }
+
+ ident = ident_create (host, plugin, plugin_instance, type, type_instance);
+ if (ident == NULL)
+ {
+ fprintf (stderr, "inst_get_selected: ident_create failed\n");
+ return (NULL);
+ }
+
+ return (ident);
+} /* }}} graph_ident_t *inst_get_selector_from_params */
+
/*
* Public functions
*/
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++)
free (inst->files);
free (inst);
-
- inst_destroy (next);
} /* }}} void inst_destroy */
int inst_add_file (graph_instance_t *inst, /* {{{ */
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;
return (NULL);
}
- if ((host == NULL)
- || (plugin == NULL) || (plugin_instance == NULL)
- || (type == NULL) || (type_instance == NULL))
+ ident = inst_get_selector_from_params ();
+ if (ident == NULL)
{
- DEBUG ("inst_get_selected: A parameter is NULL.\n");
+ fprintf (stderr, "inst_get_selected: ident_create failed\n");
return (NULL);
}
- ident = ident_create (host, plugin, plugin_instance, type, type_instance);
+ inst = graph_inst_find_exact (cfg, ident);
- for (inst = graph_get_instances (cfg); inst != NULL; inst = inst->next)
- {
- if (ident_compare (ident, inst->select) != 0)
- continue;
+ ident_destroy (ident);
+ return (inst);
+} /* }}} graph_instance_t *inst_get_selected */
+
+int inst_get_all_selected (graph_config_t *cfg, /* {{{ */
+ graph_inst_callback_t callback, void *user_data)
+{
+ graph_ident_t *ident;
+ int status;
- ident_destroy (ident);
- return (inst);
+ if ((cfg == NULL) || (callback == NULL))
+ return (EINVAL);
+
+ ident = inst_get_selector_from_params ();
+ if (ident == NULL)
+ {
+ fprintf (stderr, "inst_get_all_selected: "
+ "inst_get_selector_from_params failed\n");
+ return (EINVAL);
}
- DEBUG ("inst_get_selected: No match found.\n");
+ status = graph_inst_find_all_matching (cfg, ident, callback, user_data);
+
ident_destroy (ident);
- return (NULL);
-} /* }}} graph_instance_t *inst_get_selected */
+ return (status);
+} /* }}} int inst_get_all_selected */
int inst_get_rrdargs (graph_config_t *cfg, /* {{{ */
graph_instance_t *inst,
- str_array_t *args)
+ rrd_args_t *args)
{
def_callback_data_t data = { inst, args };
graph_def_t *defs;
buffer[0] = 0;
+#define COPY_ESCAPE(str) do { \
+ char tmp[1024]; \
+ uri_escape_copy (tmp, (str), sizeof (tmp)); \
+ strlcat (buffer, tmp, buffer_size); \
+} while (0) \
+
#define COPY_FIELD(field) do { \
const char *cfg_f = ident_get_##field (cfg_select); \
const char *inst_f = ident_get_##field (inst->select); \
{ \
strlcat (buffer, #field, buffer_size); \
strlcat (buffer, "=", buffer_size); \
- strlcat (buffer, cfg_f, buffer_size); \
+ COPY_ESCAPE (cfg_f); \
} \
else \
{ \
strlcat (buffer, "graph_", buffer_size); \
strlcat (buffer, #field, buffer_size); \
strlcat (buffer, "=", buffer_size); \
- strlcat (buffer, cfg_f, buffer_size); \
+ COPY_ESCAPE (cfg_f); \
strlcat (buffer, ";", buffer_size); \
strlcat (buffer, "inst_", buffer_size); \
strlcat (buffer, #field, buffer_size); \
strlcat (buffer, "=", buffer_size); \
- strlcat (buffer, inst_f, buffer_size); \
+ COPY_ESCAPE (inst_f); \
} \
} while (0)
COPY_FIELD(type_instance);
#undef COPY_FIELD
+#undef COPY_ESCAPE
ident_destroy (cfg_select);
return (0);
} /* }}} int inst_get_params */
-int inst_append (graph_instance_t *head, graph_instance_t *inst) /* {{{ */
+int inst_compare (const graph_instance_t *i0, /* {{{ */
+ const graph_instance_t *i1)
{
- graph_instance_t *ptr;
+ return (ident_compare (i0->select, i1->select));
+} /* }}} int inst_compare */
- if ((head == NULL) || (inst == NULL))
- return (EINVAL);
+int inst_compare_ident (graph_instance_t *inst, /* {{{ */
+ const graph_ident_t *ident)
+{
+ if ((inst == NULL) || (ident == NULL))
+ return (0);
- ptr = head;
- while (ptr->next != NULL)
- ptr = ptr->next;
+ return (ident_compare (inst->select, ident));
+} /* }}} int inst_compare_ident */
- ptr->next = inst;
+_Bool inst_ident_matches (graph_instance_t *inst, /* {{{ */
+ const graph_ident_t *ident)
+{
+#if C4_DEBUG
+ if ((inst == NULL) || (ident == NULL))
+ return (0);
+#endif
- return (0);
-} /* }}} int inst_append */
+ return (ident_matches (inst->select, ident));
+} /* }}} _Bool inst_ident_matches */
-int inst_foreach (graph_instance_t *inst, /* {{{ */
- inst_callback_t cb, void *user_data)
+_Bool inst_matches_ident (graph_instance_t *inst, /* {{{ */
+ const graph_ident_t *ident)
{
- graph_instance_t *ptr;
+ if ((inst == NULL) || (ident == NULL))
+ return (0);
- if ((inst == NULL) || (cb == NULL))
- return (EINVAL);
+ return (ident_matches (ident, inst->select));
+} /* }}} _Bool inst_matches_ident */
- for (ptr = inst; ptr != NULL; ptr = ptr->next)
+_Bool inst_matches_string (graph_config_t *cfg, /* {{{ */
+ graph_instance_t *inst,
+ const char *term)
+{
+ char buffer[1024];
+ int status;
+
+ if ((cfg == NULL) || (inst == NULL) || (term == NULL))
+ return (0);
+
+ status = inst_describe (cfg, inst, buffer, sizeof (buffer));
+ if (status != 0)
{
- int status;
+ fprintf (stderr, "inst_matches_string: inst_describe failed\n");
+ return (status);
+ }
+
+ strtolower (buffer);
+
+ /* no match */
+ if (strstr (buffer, term) == NULL)
+ return (0);
+
+ return (1);
+} /* }}} _Bool inst_matches_string */
+
+_Bool inst_matches_field (graph_instance_t *inst, /* {{{ */
+ graph_ident_field_t field, const char *field_value)
+{
+ const char *selector_field;
+ size_t i;
+
+ if ((inst == NULL) || (field_value == NULL))
+ return (0);
- status = (*cb) (ptr, user_data);
- if (status != 0)
- return (status);
+ selector_field = ident_get_field (inst->select, field);
+ if (selector_field == NULL)
+ return (0);
+
+ assert (!IS_ANY (selector_field));
+ if (!IS_ALL (selector_field))
+ {
+ if (strcasecmp (selector_field, field_value) == 0)
+ return (1);
+ else
+ return (0);
}
+ /* The selector field is an ALL selector
+ * => we need to check the files to see if the instance matches. */
+ for (i = 0; i < inst->files_num; i++)
+ {
+ selector_field = ident_get_field (inst->files[i], field);
+ if (selector_field == NULL)
+ continue;
+
+ assert (!IS_ANY (selector_field));
+ assert (!IS_ALL (selector_field));
+
+ if (strcasecmp (selector_field, field_value) == 0)
+ return (1);
+ } /* for files */
+
return (0);
-} /* }}} int inst_foreach */
+} /* }}} _Bool inst_matches_field */
-graph_instance_t *inst_find_matching (graph_instance_t *inst, /* {{{ */
- const graph_ident_t *ident)
+int inst_to_json (const graph_instance_t *inst, /* {{{ */
+ yajl_gen handler)
{
- graph_instance_t *ptr;
+ size_t i;
- if ((inst == NULL) || (ident == NULL))
- return (NULL);
+ if ((inst == NULL) || (handler == NULL))
+ return (EINVAL);
- for (ptr = inst; ptr != NULL; ptr = ptr->next)
- if (ident_matches (ptr->select, ident))
- return (ptr);
+ /* TODO: error handling */
+ yajl_gen_map_open (handler);
+ yajl_gen_string (handler,
+ (unsigned char *) "select",
+ (unsigned int) strlen ("select"));
+ ident_to_json (inst->select, handler);
+ yajl_gen_string (handler,
+ (unsigned char *) "files",
+ (unsigned int) strlen ("files"));
+ yajl_gen_array_open (handler);
+ for (i = 0; i < inst->files_num; i++)
+ ident_to_json (inst->files[i], handler);
+ yajl_gen_array_close (handler);
+ yajl_gen_map_close (handler);
- return (NULL);
-} /* }}} graph_instance_t *inst_find_matching */
+ return (0);
+} /* }}} int inst_to_json */
int inst_describe (graph_config_t *cfg, graph_instance_t *inst, /* {{{ */
char *buffer, size_t buffer_size)
{
graph_ident_t *cfg_select;
+ int status;
if ((cfg == NULL) || (inst == NULL)
|| (buffer == NULL) || (buffer_size < 2))
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);
+ status = ident_describe (inst->select, cfg_select,
+ buffer, buffer_size);
ident_destroy (cfg_select);
- return (0);
+ return (status);
} /* }}} int inst_describe */
time_t inst_get_mtime (graph_instance_t *inst) /* {{{ */
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