ytakano ytakano

statusがexitedなcontainerを削除

docker rm $(docker ps -a --filter 'status=exited' -q)

Ubuntu 15.10のコンテナを起動

sudo docker run -it --name ansible ubuntu:15.10 bash

-i: interactive
-t: allocate tty

Lunar IR

Lunar言語の中間表現であり、ここからLLVM IRへ変換。

構文

IR := TOP*
TOP := GLOBAL | THREADLOCAL | IMPORT | TOPSTATEMENT | DEFUN | EXPR
TOPSTATEMENT := LET | COND | WHILE | SELECT | BLOCK | STRUCT | CUNION | UNION
STATEMENT := LET | COND | WHILE | BREAK | SELECT | RETURN | STRUCT | CUNION | UNION | BLOCK | LEAP

$ systool -v -m netmap
Module = "netmap"

  Attributes:
    coresize            = "143360"
    initsize            = "0"
    initstate           = "live"
    refcnt              = "0"
    srcversion          = "5F4F49C43161A16E4F13BC0"

	#include <stdio.h>

	int main()
	{
	volatile int i = 0;
	while (i < 100000000) {
	asm ("xbegin ABORT");
	i++;
	asm ("xend");
	asm ("ABORT:");

	use Socket;

	my @sessions;

	# connect IF by UNIX domain socket
	my $path = "/tmp/sf-tap/tcp/http";
	my $s;

	socket($s, AF_UNIX, SOCK_STREAM, 0);
	connect($s, pack_sockaddr_un($path)) or die "cannot connect to $path";

	import System.Random
	import Data.Sequence (Seq)
	import Data.Sequence as Seq
	import Data.Word
	import Data.IORef
	import Control.Concurrent.STM.TVar
	import Control.Concurrent.STM
	import Control.Concurrent

	data Session = Session { ip1 :: Word32, port1 :: Word16,

	import socket
	import sys

	class fabs_skel:
	def openif(self, path):
	self._path = path
	self._session = {}

	self.__sock = socket.socket(socket.AF_UNIX)

	# command:
	# ansible-playbook -i /etc/ansible/hosts --ask-sudo-pass netmap.yaml

	- hosts: netmap
	sudo: yes
	vars:
	work_dir: /root/down
	netmap_dir: "{{work_dir}}/netmap"
	kernel_src_dir: /usr/src/linux-source
	kernel_headers_dir: /usr/src/linux-headers

	#include <stdio.h>
	#include <thread>
	#include <functional>

	class myclass {
	public:
	myclass() {
	auto th = std::thread(std::bind(&myclass::print, this));
	th.join();
	}