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Nim/testament/lib/stdtest/netutils.nim
Timothee Cour 1648f1dd99 fix #14320 (tasyncawait.nim is recently very flaky) + avoid hardcoding service ports everywhere + flakyAssert (#14327)
* hotfix #14320 tasyncawait.nim is recently very flaky
* fix #14327
* add flakyAssert
2020-05-13 11:05:47 +02:00

13 lines
480 B
Nim

import std/[nativesockets, asyncdispatch, os]
proc bindAvailablePort*(handle: SocketHandle, port = Port(0)): Port =
block:
var name: Sockaddr_in
name.sin_family = typeof(name.sin_family)(toInt(AF_INET))
name.sin_port = htons(uint16(port))
name.sin_addr.s_addr = htonl(INADDR_ANY)
if bindAddr(handle, cast[ptr SockAddr](addr(name)),
sizeof(name).Socklen) < 0'i32:
raiseOSError(osLastError())
result = getLocalAddr(handle, AF_INET)[1]