lotus/extern/sector-storage/worker_calltracker.go

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package sectorstorage
import (
"github.com/filecoin-project/go-statestore"
"github.com/filecoin-project/lotus/extern/sector-storage/storiface"
)
type workerCallTracker struct {
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st *statestore.StateStore // by CallID
}
type CallState uint64
const (
CallStarted CallState = iota
CallDone
// returned -> remove
)
type Call struct {
ID storiface.CallID
RetType ReturnType
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State CallState
Result []byte // json bytes
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}
func (wt *workerCallTracker) onStart(ci storiface.CallID, rt ReturnType) error {
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return wt.st.Begin(ci, &Call{
ID: ci,
RetType: rt,
State: CallStarted,
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})
}
func (wt *workerCallTracker) onDone(ci storiface.CallID, ret []byte) error {
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st := wt.st.Get(ci)
return st.Mutate(func(cs *Call) error {
cs.State = CallDone
cs.Result = ret
return nil
})
}
func (wt *workerCallTracker) onReturned(ci storiface.CallID) error {
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st := wt.st.Get(ci)
return st.End()
}
func (wt *workerCallTracker) unfinished() ([]Call, error) {
var out []Call
return out, wt.st.List(&out)
}