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some modifications to support shadow simulation #12

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some modifications to support shadow simulation #12

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31 changes: 24 additions & 7 deletions main.nim
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Original file line number Diff line number Diff line change
Expand Up @@ -67,13 +67,30 @@ proc createSwitch(id, port: int, isMix: bool, filePath: string): Switch =
warn "Failed to set up node", nodeId = id
return

var externalAddr: string = ""
let addresses = getInterfaces().filterIt(it.name == "eth0").mapIt(it.addresses)
if addresses.len < 1 or addresses[0].len < 1:
error "Can't find local ip!"
echo "Can't find local ip!, trying alternate method"

if fileExists("/etc/hosts"):
let
content = readFile("/etc/hosts")
hostname = gethostname()
for line in content.splitLines():
if line.contains(hostname) and not line.startsWith("#"):
let
parts = line.strip().split()
ip = parts[0]
if not (ip.startsWith("127") or ip.contains("::1")):
externalAddr = ip
break
else:
externalAddr = ($addresses[0][0].host).split(":")[0]

if externalAddr == "":
return

let
externalAddr = ($addresses[0][0].host).split(":")[0]
peerId = switch.peerInfo.peerId
externalMultiAddr = fmt"/ip4/{externalAddr}/tcp/{port}/p2p/{peerId}"

Expand Down Expand Up @@ -132,23 +149,23 @@ proc main() {.async.} =

let
hostname = getHostname()
node_count = parseInt(getEnv("NODES"))
messages = parseInt(getEnv("MESSAGES"))
node_count = parseInt(getEnv("PEERS"))
messages = parseInt(getEnv("PUBLISHERS"))
msg_rate = parseInt(getEnv("MSGRATE"))
msg_size = parseInt(getEnv("MSGSIZE"))
publisherCount = parseInt(getEnv("PUBLISHERS"))
publisherCount = messages #parseInt(getEnv("PUBLISHERS"))
mixCount = node_count
# Ensures all nodes run Mix so that any GossipSub peer can act as an exit node
connectTo = parseInt(getEnv("CONNECTTO"))
filePath = getEnv("FILEPATH", "./")
filePath = getEnv("FILEPATH", "../")
rng = libp2p.newRng()

if publisherCount > node_count:
error "Publisher count is greater than total node count"
return

info "Hostname", host = hostname
let myId = getHostname().split('-')[^1].parseInt()
let myId = parseInt(hostname[4..^1]) - 1 #getHostname().split('-')[^1].parseInt()
info "ID", id = myId

let
Expand Down