smallnest

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.

smallnest

package main

import (
	"crypto/tls"
	"fmt"
	"net/http"

	"golang.org/x/crypto/acme/autocert"
)

smallnest

1. GOCACHE=off ， go 1.11这个环境变量会被去除
2. -count=1
3. go clean -cache
4. -a 重编译
5. -gcflags="all=-a" 重编译

smallnest

#
# Wide-open CORS config for nginx
#
location / {
     if ($request_method = 'OPTIONS') {
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        #
        # Custom headers and headers various browsers *should* be OK with but aren't
        #

smallnest

package main

//
// Starting point is from http://gcmurphy.wordpress.com/2012/11/30/using-epoll-in-go/
// 
 
import (
	"fmt"
	"os"
	"syscall"

smallnest

package main

import (
	"log"
	"os"
	"syscall"
)

func main() {
	f, err := os.Open("/tmp/pipe")

smallnest

package main

import (
	"fmt"
	"math/rand"
	"sort"
	"time"

	"github.com/psilva261/timsort"
)

smallnest

import (
	"bytes"
	"io/ioutil"
	"golang.org/x/text/encoding/traditionalchinese"
	"golang.org/x/text/encoding/simplifiedchinese"
	"golang.org/x/text/transform"
)
//convert GBK to UTF-8
func Decodegbk(s []byte) ([]byte, error) {
	I := bytes.NewReader(s)

smallnest

import (
	"bytes"
	"io/ioutil"
	"golang.org/x/text/encoding/traditionalchinese"
	"golang.org/x/text/encoding/simplifiedchinese"
	"golang.org/x/text/transform"
)
//convert GBK to UTF-8
func Decodegbk(s []byte) ([]byte, error) {
	I := bytes.NewReader(s)

smallnest

package main



import (
  iconv "github.com/djimenez/iconv-go"
	"io/ioutil"
	"log"
	"net/http"