signal handler information

["Clancy, Shane W." <SCLANCY northropgrumman com>]

all,
i would like to set up a signal handler for something like this:

void
on_button_foo_clicked       (GtkButton       *button,
                                        gpointer         user_data)
{
	declarations

	if (GTK_TOGGLE_BUTTON(bar_button)->active)
	{
		fork;
		child_does_task;
		child_writes_info_to_disk_file;
		child_dies;
	}
	if (GTK_TOGGLE_BUTTON(blah_button)->active)
	{
		fork;
		child_does_task;
		child_writes_info_to_disk_file;
		child_dies;
	}
	if (GTK_TOGGLE_BUTTON(blah_blah_button)->active)
	{
		fork;
		child_does_task;
		child_writes_info_to_disk_file;
		child_dies;
	}
	parent_notified_that_child_process_bar_died;
	parent_reads_disk_file;
	parent_displays_info_in_gnome_widget;
	parent_notified_that_child_process_blah_died;
	parent_reads_disk_file;
	parent_displays_info_in_gnome_widget;

}

i would need to know when each child died, and i would need to buffer this
handler so that i would
not miss blah's signal if i am still working on bar.

can someone tell me where i should be looking for examples or tutorials on
how to do this?

thank you,
shane