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cmd/faucet: update state in background, skip when busy

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Péter Szilágyi 2018-03-02 11:57:11 +02:00
parent a76e46e3d7
commit 6f13e515f4
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GPG key ID: E9AE538CEDF8293D
1 changed files with 16 additions and 3 deletions
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19
cmd/faucet/faucet.go
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@ -533,9 +533,11 @@ func (f *faucet) loop() {
} }
defer sub.Unsubscribe() defer sub.Unsubscribe()
for { // Start a goroutine to update the state from head notifications in the background
select { update := make(chan *types.Header)
case head := <-heads:
go func() {
for head := range update {
// New chain head arrived, query the current stats and stream to clients // New chain head arrived, query the current stats and stream to clients
var ( var (
balance *big.Int balance *big.Int
@ -588,6 +590,17 @@ func (f *faucet) loop() {
} }
} }
f.lock.RUnlock() f.lock.RUnlock()
}
}()
// Wait for various events and assing to the appropriate background threads
for {
select {
case head := <-heads:
// New head arrived, send if for state update if there's none running
select {
case update <- head:
default:
}
case <-f.update: case <-f.update:
// Pending requests updated, stream to clients // Pending requests updated, stream to clients