Child.childWatchAddFull

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

If you obtain @pid from g_spawn_async() or g_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 g_spawn_check_exit_status() in the callback to determine whether or not the child exited successfully.

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

GLib supports only a single callback per process id.

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

struct Child
static
uint
childWatchAddFull

Parameters

priority int

the priority of the idle source. Typically this will be in the range between #G_PRIORITY_DEFAULT_IDLE and #G_PRIORITY_HIGH_IDLE.

pid GPid

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).

funct GChildWatchFunc

function to call

data void*

data to pass to @function

notify GDestroyNotify

function to call when the idle is removed, or %NULL

Return Value

Type: uint

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

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