C++ (Cpp) bson_cursor_get_boolean Beispiele

Beispiel #1

Datei: tut_mongo_sync_cmd_create.c Projekt: algernon/libmongo-client

static void
print_coll_info (bson *info)
{
  bson_cursor *c = NULL;
  bson *options = NULL;

  const gchar *name;
  gboolean capped = FALSE;
  gint64 size = -1;
  gint64 max = -1;

  c = bson_find (info, "name");
  bson_cursor_get_string (c, &name);
  bson_cursor_find (c, "options");

  bson_cursor_get_document (c, &options);

  printf ("Options for %s:\n", name);

  bson_cursor_free (c);
  bson_free (info);

  c = bson_find (options, "capped");
  bson_cursor_get_boolean (c, &capped);
  bson_cursor_free (c);

  c = bson_find (options, "size");
  bson_cursor_get_int64 (c, &size);
  bson_cursor_free (c);

  c = bson_find (options, "max");
  bson_cursor_get_int64 (c, &max);
  bson_cursor_free (c);

  bson_free (options);

  printf ("\tCapped: %s\n", (capped) ? "yes" : "no");
  if (size > 0)
    printf ("\tSize  : %lu\n", size);
  if (max > 0)
    printf ("\tMax   : %lu\n", max);
  printf ("\n");
}

Beispiel #2

Datei: tut_mongo_sync.c Projekt: 3d0c/libmongo-client

void
tut_sync_query_complex (void)
{
  mongo_sync_connection *conn;
  mongo_packet *p;
  mongo_sync_cursor *cursor;
  bson *query, *select;
  gint i = 0;

  conn = mongo_sync_connect ("localhost", 27017, FALSE);
  if (!conn)
    {
      perror ("mongo_sync_connect()");
      exit (1);
    }

  query = bson_build_full (BSON_TYPE_DOCUMENT, "$query", TRUE,
			   bson_build (BSON_TYPE_BOOLEAN, "yes?", FALSE,
				       BSON_TYPE_NONE),
			   BSON_TYPE_DOCUMENT, "$orderby", TRUE,
			   bson_build (BSON_TYPE_INT32, "n", 1,
				       BSON_TYPE_NONE),
			   BSON_TYPE_NONE);
  bson_finish (query);

  select = bson_build (BSON_TYPE_INT32, "hello", 1,
		       BSON_TYPE_INT32, "n", 1,
		       BSON_TYPE_INT32, "yes?", 1,
		       BSON_TYPE_NONE);
  bson_finish (select);

  p = mongo_sync_cmd_query (conn, "tutorial.docs", 0,
			    0, 10, query, select);
  if (!p)
    {
      perror ("mongo_sync_cmd_query()");
      exit (1);
    }
  bson_free (query);
  bson_free (select);

  cursor = mongo_sync_cursor_new (conn, "tutorial.docs", p);
  if (!cursor)
    {
      perror ("mongo_sync_cursor_new()");
      exit (1);
    }

  while (mongo_sync_cursor_next (cursor))
    {
      const char *hello;
      gint32 n;
      gboolean yes;

      bson *result;
      bson_cursor *c;

      result = mongo_sync_cursor_get_data (cursor);
      if (!result)
	{
	  perror ("mongo_sync_cursor_get_data()");
	  exit (1);
	}

      c = bson_find (result, "hello");
      if (!bson_cursor_get_string (c, &hello))
	{
	  perror ("bson_cursor_get_string()");
	  exit (1);
	}
      bson_cursor_free (c);

      c = bson_find (result, "n");
      if (!bson_cursor_get_int32 (c, &n))
	{
	  perror ("bson_cursor_get_int32()");
	  exit (1);
	}
      bson_cursor_free (c);

      c = bson_find (result, "yes?");
      if (!bson_cursor_get_boolean (c, &yes))
	{
	  perror ("bson_cursor_get_boolean()");
	  exit (1);
	}
      bson_cursor_free (c);

      printf ("Document #%d: hello=%s; n=%d; yes?=%s\n",
	      i, hello, n, (yes) ? "TRUE" : "FALSE");

      bson_free (result);
      i++;
    }

  mongo_sync_cursor_free (cursor);
  mongo_sync_disconnect (conn);
}