stefanJi

import java.net.Inet4Address
import java.net.InetSocketAddress
import java.net.Socket
import java.nio.ByteBuffer
import kotlin.random.Random

fun main() {
    tlsHandshake()
}

stefanJi

/**
 * <pre>
 * ClassFile {
 *     u4             magic;
 *     u2             minor_version;
 *     u2             major_version;
 *     u2             constant_pool_count;
 *     cp_info        constant_pool[constant_pool_count-1];
 *     u2             access_flags;
 *     u2             this_class;

stefanJi

~/.gitconfig

[includeIf "gitdir:/"]
  path = .gitconfig_person


[includeIf "gitdir:~/work-a/"]
  path = .gitconfig_work_a

stefanJi

#!/bin/sh

echo "Push source to repo"
echo "Cur: `pwd`"
cd ../source/_posts
git add .
git commit -m "feat: update or create post"
git push
cd ../../.deploy_git

stefanJi

# coding=utf-8
#
# Usage: result = Differ(old_apk_path, new_apk_path).diff()
#

import os
from argparse import ArgumentParser
from zipfile import ZipFile

KB = 1024.0

stefanJi

acme.sh --issue -d blog.jiyang.site --webroot  /home/jy/stefanji.github.io/

acme.sh  --installcert  -d  blog.jiyang.site   \
        --key-file   /home/jy/ssl/blog.jiyang.site.key \
        --fullchain-file /home/jy/ssl/fullchain.cer

## nginx config
server {
	listen 443 ssl http2;
	listen [::]:443 ssl http2;

stefanJi

ADB=${ANDROID_HOME}/platform-tools/adb
HPROF_CONV=${ANDROID_HOME}/platform-tools/hprof-conv

# customized functions
# dump droid heap
function droid_hd() {
    PACKAGE_NAME=$1

    TIME=$(date +"%Y%m%d_%H%M%S")
    FILE_NAME="${PACKAGE_NAME}-${TIME}-heap.hprof"

stefanJi

Reset mysql root password in Mac OS:

First Stop MySQL:

1. Go to: 'System Preferences' >> 'MySQL' and stop MySQL

OR,

1. sudo /usr/local/mysql/support-files/mysql.server start
2. sudo /usr/local/mysql/support-files/mysql.server stop

stefanJi

import kotlinx.coroutines.*
import java.util.concurrent.LinkedBlockingQueue
import java.util.concurrent.atomic.AtomicInteger
import kotlin.coroutines.CoroutineContext

fun main() {
    val dispatcherMgr = PauseDispatcherMgr()

    GlobalScope.launch {
        withContext(dispatcherMgr.pausableDispatcher(Dispatchers.IO)) {

stefanJi

abstract class IntervalProgressPainter extends CustomPainter {
  final int max;
  final int progress;
  final int intervalSize;
  final Color highlightColor;
  final Color defaultColor;
  final Color intervalColor;
  final Color intervalHighlightColor;
  final double radius;