5 commits

Author	SHA1	Message	Date
Charles Lowell	fe90ba39b7	implement weak reference callbacks in handles.	2011-04-13 08:45:07 -05:00
Charles Lowell	314817fbea	Context isa Handle	2011-04-13 08:45:07 -05:00
Charles Lowell	f6a618aecc	substitute generic handle struct for everywhere that was using refs	2011-04-13 08:45:07 -05:00
Charles Lowell	54be41c883	basic skeleton for more uniform treatment of handles.	2011-04-13 08:45:07 -05:00
Charles Lowell	0ffce72fe1	handle checkpoint.	2011-04-13 08:45:07 -05:00