Combines Subprocess.waitAsync with Spawn.checkExitStatus.
This is the asynchronous version of Subprocess.waitCheck.
a gio.Cancellable, or NULL
a GAsyncReadyCallback to call when the operation is complete
user_data for callback
2.40
Combines Subprocess.waitAsync with Spawn.checkExitStatus.
This is the asynchronous version of Subprocess.waitCheck.