c++

1.store == prcontext
2.content == prcontext
3.args = prevent
4.single thread while loop
stack of frame
each frame queue of doublet (store,prevent)
loop:
from top
get first doublet
execute ->move_data(prevent)

move_data:
get protolayer context
get buffer
get state
create new arg
find next instruction
enqueue at tail of current frame