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More complicated model with multiple server/client pairs - wip

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Nicholas Kariniemi 2015-08-15 14:58:59 +03:00
parent 30bbfff308
commit 14a8c340e0
1 changed files with 20 additions and 12 deletions
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32
csp/sync.csp
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@ -1,19 +1,27 @@
N = 3
channel input, render, up, down, save:{0..N-1}
N = 2
S = 3
STATES = {0..S-1}
CONN_NAMES = {0..N-1}
channel input, render, up, down:STATES
channel save:CONN_NAMES.STATES
apply(state, patch) = (state + patch) % N
diff(state1, state2) = (state2 - state1) % N
apply(state, patch) = (state + patch) % S
diff(state1, state2) = (state2 - state1) % S
CLIENT(state, shadow) =
input?new_state -> up!diff(shadow, new_state) -> CLIENT(new_state, shadow)
CLIENT(i, state, shadow) =
input?new_state -> up!diff(shadow, new_state) -> CLIENT(i, new_state, shadow)
[] down?patch -> if patch != 0
then render!apply(state, patch) -> CLIENT(apply(state, patch), apply(shadow, patch))
else CLIENT(state, state)
then render!apply(state, patch) -> CLIENT(i, apply(state, patch), apply(shadow, patch))
else CLIENT(i, state, state)
SERVER(state, shadow) =
up?patch -> save!apply(state, patch) -> down!diff(apply(shadow, patch), apply(state, patch))
-> SERVER(apply(state, patch), apply(shadow, patch))
SERVER(i, state, shadow) =
up?patch -> save!i!apply(state, patch)
-> down!diff(apply(shadow, patch), apply(state, patch))
-> SERVER(i, apply(state, patch), apply(shadow, patch))
[] save?save_i?new_state -> if (new_state == state) then SERVER(i, state, shadow) else
down!diff(apply(shadow, patch), apply(state, patch))
-> SERVER(i, apply(state, patch), apply(shadow, patch)
SYSTEM = CLIENT(0, 0) ||| SERVER(0, 0)
SYSTEM = CLIENT(0, 0, 0) ||| CLIENT(1, 0, 0) ||| SERVER(0, 0, 0) ||| SERVER(1, 0, 0)
assert SYSTEM :[deadlock free [F]]