[ Version ( since = "2.4" ) ]
public uint add_full (int priority, Pid pid, owned ChildWatchFunc function)

Sets a function to be called when the child indicated by pid exits, at the priority priority.

If you obtain pid from spawn_async or spawn_async_with_pipes you will need to pass g_spawn_do_not_reap_child as flag to the spawn function for the child watching to work.

In many programs, you will want to call check_wait_status in the callback to determine whether or not the child exited successfully.

Also, note that on platforms where Pid must be explicitly closed (see close_pid) pid must not be closed while the source is still active. Typically, you should invoke close_pid in the callback function for the source.

GLib supports only a single callback per process id. On POSIX platforms, the same restrictions mentioned for ChildWatchSource apply to this function.

This internally creates a main loop source using ChildWatchSource and attaches it to the main loop context using attach. You can do these steps manually if you need greater control.



the priority of the idle source. Typically this will be in the range between g_priority_default_idle and g_priority_high_idle.


process to watch. On POSIX the positive pid of a child process. On Windows a handle for a process (which doesn't have to be a child).


function to call


data to pass to function


function to call when the idle is removed, or null


the ID (greater than 0) of the event source.

Namespace: GLib.ChildWatch
Package: glib-2.0