Arnold deVos arnolddevos
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| // take() blocks until next* offer() | |
| // (similar but not the conventional meaning of barrier) | |
| def barrier() = new Gate[Unit, Long] { | |
| private val state = new Transactor(0l) | |
| val take = | |
| for { | |
| v0 <- state.transact(v => Observed(succeed(v))) | |
| v1 <- state.transact { v => | |
| if(v > v0) Observed(succeed(v)) |
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