save type local. This allows the user's session to be saved
when the system is being shutdown. It can also be used to
perform a remote shutdown of a session.
_x_s_m will respond to a SIGUSR1 signal by performing a
checkpoint with the following options: no interaction, save
type local. This signal can be used to perform a remote
checkpoint of a session.
TTTTHHHHEEEE PPPPRRRROOOOXXXXYYYY
Since not all applications have been ported to support the X
Session Management Protocol, a proxy service exists to allow
"old" clients to work with the session manager. In order
for the proxy to detect an application joining a session,
one of the following must be true:
- The application maps a top level window containing the
WWWWMMMM____CCCCLLLLIIIIEEEENNNNTTTT____LLLLEEEEAAAADDDDEEEERRRR property. This property provides a pointer
to the client leader window which contains the WWWWMMMM____CCCCLLLLAAAASSSSSSSS,
WWWWMMMM____NNNNAAAAMMMMEEEE, WWWWMMMM____CCCCOOOOMMMMMMMMAAAANNNNDDDD, and WWWWMMMM____CCCCLLLLIIIIEEEENNNNTTTT____MMMMAAAACCCCHHHHIIIINNNNEEEE properties.
or ...
- The application maps a top level window which does not
contain the WWWWMMMM____CCCCLLLLIIIIEEEENNNNTTTT____LLLLEEEEAAAADDDDEEEERRRR property. However, this top
level window contains the WWWWMMMM____CCCCLLLLAAAASSSSSSSS, WWWWMMMM____NNNNAAAAMMMMEEEE, WWWWMMMM____CCCCOOOOMMMMMMMMAAAANNNNDDDD, and