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swarm/storage: Implement global timeout for fetcher (#17702)

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Balint Gabor 2018-09-19 16:59:10 +02:00 committed by Anton Evangelatov
parent 736b45a876
commit f5c7d1c8eb
1 changed files with 3 additions and 1 deletions
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4
swarm/storage/netstore.go
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@ -52,6 +52,8 @@ type NetStore struct {
closeC chan struct{}
}
var fetcherTimeout = 2 * time.Minute // timeout to cancel the fetcher even if requests are coming in
// NewNetStore creates a new NetStore object using the given local store. newFetchFunc is a
// constructor function that can create a fetch function for a specific chunk address.
func NewNetStore(store SyncChunkStore, nnf NewNetFetcherFunc) (*NetStore, error) {
@ -168,7 +170,7 @@ func (n *NetStore) getOrCreateFetcher(ref Address) *fetcher {
// no fetcher for the given address, we have to create a new one
key := hex.EncodeToString(ref)
// create the context during which fetching is kept alive
ctx, cancel := context.WithCancel(context.Background())
ctx, cancel := context.WithTimeout(context.Background(), fetcherTimeout)
// destroy is called when all requests finish
destroy := func() {
// remove fetcher from fetchers