EDataCal.CalBackend.get_free_busy

### Method

# EDataCal CalBackendget_free_busy

since: 3.10

#### Declaration [src]

    void
    e_cal_backend_get_free_busy (
      ECalBackend* backend,
      time_t start,
      time_t end,
      const gchar* const* users,
      GCancellable* cancellable,
      GAsyncReadyCallback callback,
      gpointer user_data
    )

#### Description [src]

Asynchronously obtains a free/busy object for the list of `users` in the time interval between `start` and `end`.

When the operation is finished, `callback` will be called. You can then call `e_cal_backend_get_free_busy_finish()` to get the result of the operation.

Available since: 3.10

This method completes asynchronously. Use `e_cal_backend_get_free_busy_finish()` inside the `GAsyncReadyCallback` to obtain the result of the operation.

#### Parameters

`start`

  Type: `time_t`

  Start time.

`end`

  Type: `time_t`

  End time.

`users`

  Type: An array of `gchar*`

  A `NULL`-terminated array of user strings.

  The array must be `NULL`-terminated.
  The data is owned by the caller of the method.
  Each element is a NUL terminated UTF-8 string.

`cancellable`

  Type: `GCancellable`

  Optional `GCancellable` object, or `NULL`.

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

`callback`

  Type: `GAsyncReadyCallback`

  A `GAsyncReadyCallback` to call when the request is satisfied.

  The argument can be `NULL`.

`user_data`

  Type: `gpointer`

  Data to pass to the callback function.

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