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fix deadlock in on_demand

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This commit is contained in:
Robert Habermeier 2017-03-23 02:55:25 +01:00
parent 23a6b19985
commit a55001ad1d
1 changed files with 9 additions and 7 deletions
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16
ethcore/light/src/on_demand/mod.rs
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@ -210,7 +210,7 @@ impl OnDemand {
/// it as easily.
pub fn header_by_hash(&self, ctx: &BasicContext, req: request::HeaderByHash) -> Receiver<encoded::Header> {
let (sender, receiver) = oneshot::channel();
match self.cache.lock().block_header(&req.0) {
match { self.cache.lock().block_header(&req.0) } {
Some(hdr) => sender.send(hdr).expect(RECEIVER_IN_SCOPE),
None => self.dispatch(ctx, Pending::HeaderByHash(req, sender)),
}
@ -232,7 +232,7 @@ impl OnDemand {
sender.send(encoded::Block::new(stream.out())).expect(RECEIVER_IN_SCOPE);
} else {
match self.cache.lock().block_body(&req.hash) {
match { self.cache.lock().block_body(&req.hash) } {
Some(body) => {
let mut stream = RlpStream::new_list(3);
stream.append_raw(&req.header.into_inner(), 1);
@ -255,7 +255,7 @@ impl OnDemand {
if req.0.receipts_root() == SHA3_NULL_RLP {
sender.send(Vec::new()).expect(RECEIVER_IN_SCOPE);
} else {
match self.cache.lock().block_receipts(&req.0.hash()) {
match { self.cache.lock().block_receipts(&req.0.hash()) } {
Some(receipts) => sender.send(receipts).expect(RECEIVER_IN_SCOPE),
None => self.dispatch(ctx, Pending::BlockReceipts(req, sender)),
}
@ -397,10 +397,12 @@ impl Handler for OnDemand {
}
fn on_announcement(&self, ctx: &EventContext, announcement: &Announcement) {
let mut peers = self.peers.write();
if let Some(ref mut peer) = peers.get_mut(&ctx.peer()) {
peer.status.update_from(&announcement);
peer.capabilities.update_from(&announcement);
{
let mut peers = self.peers.write();
if let Some(ref mut peer) = peers.get_mut(&ctx.peer()) {
peer.status.update_from(&announcement);
peer.capabilities.update_from(&announcement);
}
}
self.dispatch_orphaned(ctx.as_basic());