VteReaper

VteReaper — A singleton object which catches SIGCHLD signals and converts them into GObject-style "child-exited" signals.

Synopsis




            VteReaper;
VteReaper*  vte_reaper_get                  (void);
int         vte_reaper_add_child            (GPid pid);

Object Hierarchy


  GObject
   +----VteReaper

Signals


"child-exited"
            void        user_function      (VteReaper *vtereaper,
                                            gint       arg1,
                                            gint       arg2,
                                            gpointer   user_data)      : Run last

Description

Because an application may need to be notified when child processes exit, and because there is only one SIGCHLD handler, the VteTerminal widget relies on a VteReaper to watch for SIGCHLD notifications and retrieve the exit status of child processes which have exited. When glib provides child_watch functionality, the VteReaper merely acts as a proxy for glib's own functionality.

Details

VteReaper

typedef struct _VteReaper VteReaper;

This should not be accessed directly.

vte_reaper_get ()

VteReaper*  vte_reaper_get                  (void);

Finds the address of the global VteReaper object, creating the object if necessary.

Returns : the global VteReaper object, which should not be unreffed.

vte_reaper_add_child ()

int         vte_reaper_add_child            (GPid pid);

Ensures that child-exited signals will be emitted when pid exits. This is necessary for correct operation when running with glib versions >= 2.4.

pid : the ID of a child process which will be monitored
Returns : the new source ID Since 0.11.11

Signal Details

The "child-exited" signal

void        user_function                  (VteReaper *vtereaper,
                                            gint       arg1,
                                            gint       arg2,
                                            gpointer   user_data)      : Run last

Emitted when the VteReaper object detects that a child of the current process has exited.

vtereaper : the object which received the signal.
arg1 : the process ID of the exited child.
arg2 : the status of the exited child, as returned by waitpid().
user_data : user data set when the signal handler was connected.