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refactor: prealloc slices with known sizes (#8892)

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Often those are small slices and that cuts down the number
of (small) allocations from 2~7 to 1. 
This is consistent too, always only gets 1.
This commit is contained in:
Jorropo
2022-06-24 22:19:19 +02:00
committed by GitHub
parent a3a6a59dbb
commit 6602dd704e
5 changed files with 20 additions and 19 deletions
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13
cmd/ipfs/daemon.go
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@ -704,22 +704,23 @@ func printSwarmAddrs(node *core.IpfsNode) {
return
}
var lisAddrs []string
ifaceAddrs, err := node.PeerHost.Network().InterfaceListenAddresses()
if err != nil {
log.Errorf("failed to read listening addresses: %s", err)
}
for _, addr := range ifaceAddrs {
lisAddrs = append(lisAddrs, addr.String())
lisAddrs := make([]string, len(ifaceAddrs))
for i, addr := range ifaceAddrs {
lisAddrs[i] = addr.String()
}
sort.Strings(lisAddrs)
for _, addr := range lisAddrs {
fmt.Printf("Swarm listening on %s\n", addr)
}
var addrs []string
for _, addr := range node.PeerHost.Addrs() {
addrs = append(addrs, addr.String())
nodePhostAddrs := node.PeerHost.Addrs()
addrs := make([]string, len(nodePhostAddrs))
for i, addr := range nodePhostAddrs {
addrs[i] = addr.String()
}
sort.Strings(addrs)
for _, addr := range addrs {