pg_on_connection_loss

PG_ON_CONNECTION_LOSS()PostgreSQL 7.4.19 DocumentationPG_ON_CONNECTION_LOSS()



NAME
       pg_on_connection_loss  -	 set or change a callback for unexpected con-
       nection loss


SYNOPSIS
       pg_on_connection_loss conn [callbackCommand]


DESCRIPTION
       pg_on_connection_loss creates, changes, or cancels a request  to	 exe-
       cute  a	callback  command  if an unexpected loss of connection to the
       database occurs. With a	callbackCommand	 parameter,  the  request  is
       established,  or	 the command string of an already existing request is
       replaced. With no callbackCommand parameter, a prior request  is	 can-
       celed.

       The  callback command string is executed from the Tcl idle loop.	 That
       is the normal idle state of an application written with Tk.  In non-Tk
       Tcl  shells, you can execute update or vwait to cause the idle loop to
       be entered.

ARGUMENTS
       conn   The handle to watch for connection losses.

       callbackCommand
	      If present, provides the command string to execute when connec-
	      tion loss is detected.

RETURN VALUE
       None



				  2008-01-03	      PG_ON_CONNECTION_LOSS()