d0zingcat/gocryptotrader
1
0
Fork 0
mirror of https://github.com/d0zingcat/gocryptotrader.git synced 2026-05-13 23:16:45 +00:00
Code Issues Packages Projects Releases Wiki Activity

Orderbook/RPCServer: Fix GetOrderbook/Retrieve race condition (refactored and sped up) (#555)

Browse Source 
* Kraken - wsProcessOrderBook, the method was returning wrong bids data

* additional  map check to prevent panic

* linter issue fix

* The RPC method GetOrderbook has a race condition and causes panic - refactored and speed up

* The method Retrieve (package orderbook) now return pointer of a copy of s.Books[exchange][p.Base.Item][p.Quote.Item][a].b

* using extra var to optomize code

* bids and asks slices filling optimisation

Co-authored-by: Vazha Bezhanishvili <vazha.bezhanishvili@elegro.eu>
This commit is contained in:
Vazha
2020-09-18 08:09:41 +03:00
committed by GitHub
parent b9aa2bcc2c
commit 73ac8b90dc
2 changed files with 39 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
engine/rpcserver.go
View File

@@ -400,21 +400,27 @@ func (s *RPCServer) GetOrderbook(_ context.Context, r *gctrpc.GetOrderbookReques
return nil, err
}
var bids []*gctrpc.OrderbookItem
for x := range ob.Bids {
bids = append(bids, &gctrpc.OrderbookItem{
Amount: ob.Bids[x].Amount,
Price: ob.Bids[x].Price,
})
}
bids := make([]*gctrpc.OrderbookItem, 0, len(ob.Bids))
asks := make([]*gctrpc.OrderbookItem, 0, len(ob.Asks))
ch := make(chan bool)
var asks []*gctrpc.OrderbookItem
for x := range ob.Asks {
go func() {
for _, b := range ob.Bids {
bids = append(bids, &gctrpc.OrderbookItem{
Amount: b.Amount,
Price: b.Price,
})
}
ch <- true
}()
for _, a := range ob.Asks {
asks = append(asks, &gctrpc.OrderbookItem{
Amount: ob.Asks[x].Amount,
Price: ob.Asks[x].Price,
Amount: a.Amount,
Price: a.Price,
})
}
<-ch
resp := &gctrpc.OrderbookResponse{
Pair: r.Pair,