zchee

See also, http://libraryofalexandria.io/cgo/

Using Go cgo

cgo has a lot of trap.
but Not "C" pkg also directory in $GOROOT/src. IDE's(vim) Goto command not works.

So, Here collect materials.

teknoraver

package main

import (
	"context"
	"flag"
	"fmt"
	"io"
	"net"
	"net/http"
	"os"

helinwang

Here is the gist for showing how to send string from c to go without a copy, for sending an float32 array from c to go without copy, please see here

Below is the documentation for converting between a c string and a go string:

// From https://golang.org/cmd/cgo/
// A few special functions convert between Go and C types by making copies of the data. 
// Go string to C string
// The C string is allocated in the C heap using malloc.
// It is the caller's responsibility to arrange for it to be
// freed, such as by calling C.free (be sure to include stdlib.h

sbernard31

#define KBUILD_MODNAME "foo"
#include <uapi/linux/bpf.h>
#include <linux/bpf.h>
#include <linux/icmp.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/udp.h>

aojea

GODEBUG=netdns=cgo+2 go run listen.go 
GOOS: linux
go package net: using cgo DNS resolver
go package net: hostLookupOrder(localhost) = cgo
net.LookupHost addrs: [::1 127.0.0.1] err: <nil>
go package net: hostLookupOrder(localhost) = cgo
Listener address:  127.0.0.1:8080
go package net: hostLookupOrder(localhost) = cgo
Dial remote address:  127.0.0.1:8080

NoReNoLife

#!/usr/bin/env python3
import base64
import subprocess
from json import dumps
from hashlib import md5
from Crypto.Cipher import AES
from Crypto.Util.Padding import pad


def get_id_and_sn():