singchia

package main

import (
	"encoding/json"
	"fmt"

	"github.com/jaypipes/ghw"
)

var (

singchia

#!/bin/bash
read -r -d '' license <<-"EOF"
/*    Copyright (c) 2010-2017, Delft University of Technology
 *    All rights reserved
 *
 *    This file is part of the Tudat. Redistribution and use in source and
 *    binary forms, with or without modification, are permitted exclusively
 *    under the terms of the Modified BSD license. You should have received
 *    a copy of the license with this file. If not, please or visit:
 *    http://tudat.tudelft.nl/LICENSE.

singchia

Setting up Qemu with a tap interface

There are two parts to networking within QEMU:

• The virtual network device that is provided to the guest (e.g. a PCI network card).
• The network backend that interacts with the emulated NIC (e.g. puts packets onto the host's network).

Example: User mode network

singchia

package main

import (
    "fmt"
    "math/rand"
    "os"
    "strconv"
    "sync"
    "time"
)

singchia

Using strace and lsof to debug blocked processes

You can use strace on a specific pid to figure out what a specific process is doing, e.g.:

strace -fp <pid>

You might see something like:

select(9, [3 5 8], [], [], {0, 999999}) = 0 (Timeout)

singchia

// https://banu.com/blog/2/how-to-use-epoll-a-complete-example-in-c/
// http://www.kegel.com/poller/

/** Todo
 * - [ ] Split i/o and logic
 * - [ ] Unit test logic
 * - [ ] Logging
 * - [ ] Continuous integration
 *   - [ ] Linux
 *   - [ ] Windows

singchia

# Borrowed from: 
# https://github.com/silven/go-example/blob/master/Makefile
# https://vic.demuzere.be/articles/golang-makefile-crosscompile/

BINARY = superdo
VET_REPORT = vet.report
TEST_REPORT = tests.xml
GOARCH = amd64

VERSION?=?

singchia

package main

import (
	"flag"
	"fmt"
	"net"
	"os"
	"sync"
	"time"
)

singchia

package main

import (
	"flag"
	"net"
	"os"
	"time"

	"github.com/singchia/go-hammer/circulinker"
)

singchia

package main

import (
    "flag"
    "net"
    "os"
)

func main() {
    var addr string