Move collectd daemon files to the src/daemon/ directory.

[collectd.git] / src / daemon / types_list.c

diff --git a/src/daemon/types_list.c b/src/daemon/types_list.c
new file mode 100644 (file)
index 0000000..b3cb8cf
--- /dev/null
+++ b/src/daemon/types_list.c
@@ -0,0 +1,207 @@
+/**
+ * collectd - src/types_list.c
+ * Copyright (C) 2007       Florian octo Forster
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *   Florian octo Forster <octo at collectd.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
+ */