Gio.DBusConnection.flush_sync

### Method

# Gio DBusConnectionflush_sync

since: 2.26

#### Declaration

    gboolean
    g_dbus_connection_flush_sync (
      GDBusConnection* connection,
      GCancellable* cancellable,
      GError** error
    )

#### Description

Synchronously flushes `connection`. The calling thread is blocked until this is done. See `g_dbus_connection_flush()` for the asynchronous version of this method and more details about what it does.

Available since: 2.26

#### Parameters

`cancellable`

  Type: `GCancellable`

  A `GCancellable` or `NULL`.

  The argument can be `NULL`.
  The data is owned by the caller of the method.

`error`

  Type: `GError **`

  The return location for a recoverable error.

  The argument can be `NULL`.
  If the return location is not `NULL`, then you must initialize it to a `NULL` `GError*`.
  The argument will be left initialized to `NULL` by the method if there are no errors.
  In case of error, the argument will be set to a newly allocated `GError`; the caller will take ownership of the data, and be responsible for freeing it.

#### Return value

Type: `gboolean`

`TRUE` if the operation succeeded, `FALSE` if `error` is set.