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@jhansche
jhansche / watch-fds.sh
Created October 28, 2016 20:39
Simple script to monitor the number open file descriptors for an Android application.
#!/bin/sh
# Usage: ./watch-fds.sh <application_id> [delay_secs = 5]
APP_ID=${1:?missing application id}
DELAY=$(( ${2:-5} ))
DEVICE_LIMIT=$(( $(adb shell ulimit -n) ))
WARN_THRESHOLD=$(( ${DEVICE_LIMIT} / 3 ))
echo "Will warn at ${WARN_THRESHOLD}"
/**
* 百度坐标(BD09)、国测局坐标(火星坐标,GCJ02)、和WGS84坐标系之间的转换的工具
*
* 参考 https://github.com/wandergis/coordtransform 实现的Java版本
* @author geosmart
*/
public class CoordinateTransformUtil {
static double x_pi = 3.14159265358979324 * 3000.0 / 180.0;
// π
static double pi = 3.1415926535897932384626;
@androidfred
androidfred / haskell_stack_and_intellij_idea_ide_setup_tutorial_how_to_get_started.md
Last active February 4, 2024 20:58
Haskell, Stack and Intellij IDEA IDE setup tutorial how to get started

Haskell, Stack and Intellij IDEA IDE setup tutorial how to get started

Upon completion you will have a sane, productive Haskell environment adhering to best practices.

Basics

  • Haskell is a programming language.
  • Stack is tool for Haskell projects. (similar tools for other languages include Maven, Gradle, npm, RubyGems etc)
  • Intellij IDEA IDE is a popular IDE.

Install required libraries

sudo apt-get install libtinfo-dev libghc-zlib-dev libghc-zlib-bindings-dev

@zjhiphop
zjhiphop / 分布式系统学习资料.md
Created July 23, 2015 06:13
分布式系统学习资料

##分布式系统(Distributed System)资料


#####希望转载的朋友,你可以不用联系我.但是一定要保留原文链接,因为这个项目还在继续也在不定期更新.希望看到文章的朋友能够学到更多.

介绍:这是一篇介绍在动态网络里面实现分布式系统重构的paper.论文的作者(导师)是MIT读博的时候是做分布式系统的研究的,现在在NUS带学生,不仅仅是分布式系统,还有无线网络.如果感兴趣可以去他的主页了解.

@zchee
zchee / actionlist.vim
Last active April 19, 2024 13:22
IdeaVim actionlist
--- Actions ---
$Copy <M-C>
$Cut <M-X> <S-Del>
$Delete <Del> <BS> <M-BS>
$LRU
$Paste <M-V>
$Redo <M-S-Z> <A-S-BS>
$SearchWeb <A-S-G>
$SelectAll <M-A>
$Undo <M-Z>
@jackywyz
jackywyz / hs.md
Created December 2, 2011 07:29
Haskell总结

###haskell 基本类型,bool(True/False),list[],tuple(),int,Integer,Double,char'' ,string"",function(\x->x+1)

  1. wiki