C++ (Cpp) udb_result_prepare_result Examples

Example #1

File: utils_db_query.c Project: haojunyu/collectd

int udb_query_prepare_result (udb_query_t *q, /* {{{ */
    const char *host, const char *plugin, const char *db_name,
    char **column_names, size_t column_num)
{
  udb_result_t *r;
  int status;

  if (q == NULL)
    return (-EINVAL);

  udb_query_finish_result (q);

  q->column_num = column_num;
  q->host = strdup (host);
  q->plugin = strdup (plugin);
  q->db_name = strdup (db_name);

  if ((q->host == NULL) || (q->plugin == NULL) || (q->db_name == NULL))
  {
    ERROR ("db query utils: Query `%s': Prepare failed: Out of memory.", q->name);
    udb_query_finish_result (q);
    return (-ENOMEM);
  }

#if defined(COLLECT_DEBUG) && COLLECT_DEBUG
  do
  {
    size_t i;

    for (i = 0; i < column_num; i++)
    {
      DEBUG ("db query utils: udb_query_prepare_result: "
          "query = %s; column[%zu] = %s;",
          q->name, i, column_names[i]);
    }
  } while (0);
#endif

  for (r = q->results; r != NULL; r = r->next)
  {
    status = udb_result_prepare_result (r, column_names, column_num);
    if (status != 0)
    {
      udb_query_finish_result (q);
      return (status);
    }
  }

  return (0);
} /* }}} int udb_query_prepare_result */

Example #2

File: utils_db_query.c Project: strizhechenko/collectd

int udb_query_prepare_result (udb_query_t const *q, /* {{{ */
    udb_query_preparation_area_t *prep_area,
    const char *host, const char *plugin, const char *db_name,
    char **column_names, size_t column_num, cdtime_t interval)
{
  udb_result_preparation_area_t *r_area;
  udb_result_t *r;
  int status;

  if ((q == NULL) || (prep_area == NULL))
    return (-EINVAL);

  udb_query_finish_result (q, prep_area);

  prep_area->column_num = column_num;
  prep_area->host = strdup (host);
  prep_area->plugin = strdup (plugin);
  prep_area->db_name = strdup (db_name);

  prep_area->interval = interval;

  if ((prep_area->host == NULL) || (prep_area->plugin == NULL)
      || (prep_area->db_name == NULL))
  {
    ERROR ("db query utils: Query `%s': Prepare failed: Out of memory.", q->name);
    udb_query_finish_result (q, prep_area);
    return (-ENOMEM);
  }

#if defined(COLLECT_DEBUG) && COLLECT_DEBUG
  do
  {
    size_t i;

    for (i = 0; i < column_num; i++)
    {
      DEBUG ("db query utils: udb_query_prepare_result: "
          "query = %s; column[%zu] = %s;",
          q->name, i, column_names[i]);
    }
  } while (0);
#endif

  /* Determine the position of the PluginInstance column {{{ */
  if (q->plugin_instance_from != NULL)
  {
    size_t i;

    for (i = 0; i < column_num; i++)
    {
      if (strcasecmp (q->plugin_instance_from, column_names[i]) == 0)
      {
        prep_area->plugin_instance_pos = i;
        break;
      }
    }

    if (i >= column_num)
    {
      ERROR ("db query utils: udb_query_prepare_result: "
          "Column `%s' from `PluginInstanceFrom' could not be found.",
          q->plugin_instance_from);
      udb_query_finish_result (q, prep_area);
      return (-ENOENT);
    }
  }
  /* }}} */

  for (r = q->results, r_area = prep_area->result_prep_areas;
      r != NULL; r = r->next, r_area = r_area->next)
  {
    if (! r_area)
    {
      ERROR ("db query utils: Query `%s': Invalid number of result "
          "preparation areas.", q->name);
      udb_query_finish_result (q, prep_area);
      return (-EINVAL);
    }

    status = udb_result_prepare_result (r, r_area, column_names, column_num);
    if (status != 0)
    {
      udb_query_finish_result (q, prep_area);
      return (status);
    }
  }

  return (0);
} /* }}} int udb_query_prepare_result */

Example #3

File: utils_db_query.c Project: asangpet/collectd

int udb_query_prepare_result (const udb_query_t const *q, /* {{{ */
    udb_query_preparation_area_t *prep_area,
    const char *host, const char *plugin, const char *db_name,
    char **column_names, size_t column_num, int interval)
{
  udb_result_preparation_area_t *r_area;
  udb_result_t *r;
  int status;

  if ((q == NULL) || (prep_area == NULL))
    return (-EINVAL);

  udb_query_finish_result (q, prep_area);

  prep_area->column_num = column_num;
  prep_area->host = strdup (host);
  prep_area->plugin = strdup (plugin);
  prep_area->db_name = strdup (db_name);

  prep_area->interval = interval;

  if ((prep_area->host == NULL) || (prep_area->plugin == NULL)
      || (prep_area->db_name == NULL))
  {
    ERROR ("db query utils: Query `%s': Prepare failed: Out of memory.", q->name);
    udb_query_finish_result (q, prep_area);
    return (-ENOMEM);
  }

#if defined(COLLECT_DEBUG) && COLLECT_DEBUG
  do
  {
    size_t i;

    for (i = 0; i < column_num; i++)
    {
      DEBUG ("db query utils: udb_query_prepare_result: "
          "query = %s; column[%zu] = %s;",
          q->name, i, column_names[i]);
    }
  } while (0);
#endif

  for (r = q->results, r_area = prep_area->result_prep_areas;
      r != NULL; r = r->next, r_area = r_area->next)
  {
    if (! r_area)
    {
      ERROR ("db query utils: Query `%s': Invalid number of result "
          "preparation areas.", q->name);
      udb_query_finish_result (q, prep_area);
      return (-EINVAL);
    }

    status = udb_result_prepare_result (r, r_area, column_names, column_num);
    if (status != 0)
    {
      udb_query_finish_result (q, prep_area);
      return (status);
    }
  }

  return (0);
} /* }}} int udb_query_prepare_result */