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binance: pre-allocate PriceVolumeSlice memory

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c9s 2021-06-29 14:59:51 +08:00 committed by c9s
parent 2ec01e3d28
commit f64b0e7a9f
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1 changed files with 2 additions and 0 deletions
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pkg/exchange/binance/parse.go
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@ -510,6 +510,8 @@ func parseDepthEvent(val *fastjson.Value) (*DepthEvent, error) {
Symbol: string(val.GetStringBytes("s")),
FirstUpdateID: val.GetInt64("U"),
FinalUpdateID: val.GetInt64("u"),
Bids: make(types.PriceVolumeSlice, 0, 50),
Asks: make(types.PriceVolumeSlice, 0, 50),
}
for _, ev := range val.GetArray("b") {