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/**
* collectd - src/types_list.c
* Copyright (C) 2007 Florian octo Forster
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; only version 2 of the License is applicable.
*
* 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors:
* Florian octo Forster <octo at verplant.org>
**/
#include "collectd.h"
#include "common.h"
#include "plugin.h"
#include "configfile.h"
static int parse_ds (data_source_t *dsrc, char *buf, size_t buf_len)
{
char *dummy;
char *saveptr;
char *fields[8];
int fields_num;
if (buf_len < 11)
{
ERROR ("parse_ds: (buf_len = %zu) < 11", buf_len);
return (-1);
}
if (buf[buf_len - 1] == ',')
{
buf_len--;
buf[buf_len] = '\0';
}
dummy = buf;
saveptr = NULL;
fields_num = 0;
while (fields_num < 8)
{
if ((fields[fields_num] = strtok_r (dummy, ":", &saveptr)) == NULL)
break;
dummy = NULL;
fields_num++;
}
if (fields_num != 4)
{
ERROR ("parse_ds: (fields_num = %i) != 4", fields_num);
return (-1);
}
sstrncpy (dsrc->name, fields[0], sizeof (dsrc->name));
if (strcasecmp (fields[1], "GAUGE") == 0)
dsrc->type = DS_TYPE_GAUGE;
else if (strcasecmp (fields[1], "COUNTER") == 0)
dsrc->type = DS_TYPE_COUNTER;
else if (strcasecmp (fields[1], "DERIVE") == 0)
dsrc->type = DS_TYPE_DERIVE;
else if (strcasecmp (fields[1], "ABSOLUTE") == 0)
dsrc->type = DS_TYPE_ABSOLUTE;
else
{
ERROR ("(fields[1] = %s) != (GAUGE || COUNTER || DERIVE || ABSOLUTE)", fields[1]);
return (-1);
}
if (strcasecmp (fields[2], "U") == 0)
dsrc->min = NAN;
else
dsrc->min = atof (fields[2]);
if (strcasecmp (fields[3], "U") == 0)
dsrc->max = NAN;
else
dsrc->max = atof (fields[3]);
return (0);
} /* int parse_ds */
static void parse_line (char *buf)
{
char *fields[64];
size_t fields_num;
data_set_t *ds;
int i;
fields_num = strsplit (buf, fields, 64);
if (fields_num < 2)
return;
/* Ignore lines which begin with a hash sign. */
if (fields[0][0] == '#')
return;
ds = (data_set_t *) malloc (sizeof (data_set_t));
if (ds == NULL)
return;
memset (ds, '\0', sizeof (data_set_t));
sstrncpy (ds->type, fields[0], sizeof (ds->type));
ds->ds_num = fields_num - 1;
ds->ds = (data_source_t *) calloc (ds->ds_num, sizeof (data_source_t));
if (ds->ds == NULL)
return;
for (i = 0; i < ds->ds_num; i++)
if (parse_ds (ds->ds + i, fields[i + 1], strlen (fields[i + 1])) != 0)
{
sfree (ds->ds);
ERROR ("types_list: parse_line: Cannot parse data source #%i "
"of data set %s", i, ds->type);
return;
}
plugin_register_data_set (ds);
sfree (ds->ds);
sfree (ds);
} /* void parse_line */
static void parse_file (FILE *fh)
{
char buf[4096];
size_t buf_len;
while (fgets (buf, sizeof (buf), fh) != NULL)
{
buf_len = strlen (buf);
if (buf_len >= 4095)
{
NOTICE ("Skipping line with more than 4095 characters.");
do
{
if (fgets (buf, sizeof (buf), fh) == NULL)
break;
buf_len = strlen (buf);
} while (buf_len >= 4095);
continue;
} /* if (buf_len >= 4095) */
if ((buf_len == 0) || (buf[0] == '#'))
continue;
while ((buf_len > 0) && ((buf[buf_len - 1] == '\n')
|| (buf[buf_len - 1] == '\n')))
buf[--buf_len] = '\0';
if (buf_len == 0)
continue;
parse_line (buf);
} /* while (fgets) */
} /* void parse_file */
int read_types_list (const char *file)
{
FILE *fh;
if (file == NULL)
return (-1);
fh = fopen (file, "r");
if (fh == NULL)
{
char errbuf[1024];
fprintf (stderr, "Failed to open types database `%s': %s.\n",
file, sstrerror (errno, errbuf, sizeof (errbuf)));
ERROR ("Failed to open types database `%s': %s",
file, sstrerror (errno, errbuf, sizeof (errbuf)));
return (-1);
}
parse_file (fh);
fclose (fh);
fh = NULL;
DEBUG ("Done parsing `%s'", file);
return (0);
} /* int read_types_list */
/*
* vim: shiftwidth=2:softtabstop=2:tabstop=8
*/
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