David Krause enthus1ast

enthus1ast / gist:110121ca06bdc71f967c7406bac5ad9a

Created November 3, 2019 13:03

enthus1ast / gist:13f7efddce9ee192dfd21045056c6a2e

Created November 3, 2019 13:01

	import distros
	import macros

	macro whichOs(): untyped =
	result = newStmtList()
	for dist in Distribution:
	result.add newCall("echo", newLit dist , newLit " ", newCall("detectOs", newIdentNode($dist)))

	whichOs()

enthus1ast / gist:e487aec1d08b7c4822a48a3711f27cdf

Created November 3, 2019 12:46

	import distros
	for dist in Distribution:
	echo dist, detectOs(dist)

	distrost.nim(53, 22) template/generic instantiation of `detectOs` from here
	distros.nim(184, 28) Error: undeclared field: 'dist'
	found 'dist' of kind 'forvar'

enthus1ast / gist:19a472de473e1049ec954f9cc946068c

Created May 18, 2019 23:18

	import asyncdispatch, asyncnet
	type
	Server = ref object
	socket: AsyncSocket

	proc newServer(): Server =
	Server(socket: newAsyncSocket())

	proc loop(server: Server, port = 7920) {.async.} =
	server.socket.bindAddr(Port(port), "0.0.0.0")

enthus1ast / threadAsync.nim

Last active November 5, 2018 22:03

	# test with: `while true; do curl 127.0.0.1:8080; done`
	# import threadpool
	import locks
	import os
	import asyncdispatch
	import asynchttpserver, asyncdispatch

	var L: Lock

	type Context = ref object {.pure.}

enthus1ast / gist.nim

Last active October 19, 2018 19:47

	type ServiceMain = proc(gSvcStatus: SERVICE_STATUS)
	proc wrapServiceMain(mainProc: ServiceMain): LPSERVICE_MAIN_FUNCTION {.closure.} =
	## wraps a nim proc in a LPSERVICE_MAIN_FUNCTION
	return proc(dwArgc: DWORD, lpszArgv: LPTSTR) {.stdcall.} =
	gSvcStatusHandle = RegisterServiceCtrlHandler(
	SERVICE_NAME,
	svcCtrlHandler
	)
	gSvcStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS
	gSvcStatus.dwServiceSpecificExitCode = 0

enthus1ast / gist:0993a76ec8e6c22d09bc0030eac6a159

Last active October 14, 2018 19:22

	## Store multiple "bool" values in an integer
	# http://blog.millermedeiros.com/using-integers-to-store-multiple-boolean-values/
	type foos = enum
	foo = 1.shl 0, # 1
	baa = 1.shl 1, # 2
	baz = 1.shl 2 # 4

	echo foo.int
	echo baa.int
	echo baz.int

enthus1ast / gist:e25a52d768fcefb40b02070398607002

Created September 20, 2018 00:25

enthus1ast / gist:a052d8c4dbf487f0d9fb6f91ddf1dd77

Created April 25, 2018 13:15

	import httpclient, asyncdispatch

	var client = newAsyncHttpClient()
	proc onProgressChanged(total, progress, speed: BiggestInt) {.async.} =
	echo("Downloaded ", progress, " of ", total)
	echo("Current rate: ", speed div 1000, "kb/s")
	client.onProgressChanged = onProgressChanged
	echo waitFor client.getContent("http://speedtest-ams2.digitalocean.com/100mb.test")

enthus1ast / optionOfDateTime.nim

Created April 11, 2018 11:26

	import times
	import options

	type
	Entry = object of RootObj
	emergeDate: Option[DateTime]
	publishDate: Option[DateTime]

	proc newEntry(): Entry =
	# Gives: Error: fields not initialized: emergeDate, publishDate.