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@davidnunez
davidnunez / gist:1404789
Created November 29, 2011 13:20
list all installed packages in android adb shell
pm list packages -f
@kanru
kanru / Android.mk
Created January 6, 2012 04:16
Android GPS using libhardware
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_SRC_FILES:= \
gps_test.cpp
LOCAL_SHARED_LIBRARIES := \
libcutils libhardware
LOCAL_MODULE:= test-gps
@mobius
mobius / libzip_simple.c
Last active May 19, 2024 10:47
using libzip to extract files
/* Copyright (C) 2011 rocenting#gmail.com */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/resource.h>
@jboner
jboner / latency.txt
Last active November 17, 2024 11:32
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@AliMD
AliMD / gist:3344523
Created August 13, 2012 22:28
All github Emoji (Smiles)

All github Emoji (Smiles)

ali.md/emoji

:bowtie: | 😄 | 😆 | 😊 | 😃 | ☺️ | 😏 | 😍 | 😘 | :kissing_face: | 😳 | 😌 | 😆 | 😁 | 😉 | :wink2: | 👅 | 😒 | 😅 | 😓

😩 | 😔 | 😞 | 😖 | 😨 | 😰 | 😣 | 😢 | 😭 | 😂 | 😲 | 😱 | :neckbeard: | 😫 | 😠 | 😡 | 😤 | 😪 | 😋 | 😷

😎 | 😵 | 👿 | 😈 | 😐 | 😶 | 😇 | 👽 | 💛 | 💙 | 💜 | ❤️ | 💚 | 💔 | 💓 | 💗 | 💕 | 💞 | 💘 | ✨

@valadan
valadan / latency.markdown
Created September 14, 2012 11:41 — forked from hellerbarde/latency.markdown
Latency numbers every programmer should know

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

@BigglesZX
BigglesZX / gifextract.py
Created November 5, 2012 10:31
Extract frames from an animated GIF, correctly handling palettes and frame update modes
import os
from PIL import Image
'''
I searched high and low for solutions to the "extract animated GIF frames in Python"
problem, and after much trial and error came up with the following solution based
on several partial examples around the web (mostly Stack Overflow).
There are two pitfalls that aren't often mentioned when dealing with animated GIFs -
@dabrahams
dabrahams / launchd.org
Last active July 7, 2024 12:10
Notes on Apple's under-documented launchd

Notes on Apple’s Under-Documented LaunchD

Start triggers fire regardless of other conditions

For example, StartOnMount=true will cause the job to start when anything is mounted even if other conditions, e.g. QueueDirectories, say the job should not run

Rhythm of repeating jobs

The StartInterval timer begins ticking at the moment the plist is loaded. If something like QueueDirectories is preventing the job from

@amyreese
amyreese / gist:6207161
Created August 11, 2013 22:25
Travis CI config to build against Qt5.0 on Ubuntu 12.04. Requires installing a PPA and certain packages for qt5 support.
before_install:
- sudo add-apt-repository --yes ppa:ubuntu-sdk-team/ppa
- sudo apt-get update -qq
- sudo apt-get install -qq qt5-qmake qtbase5-dev qtdeclarative5-dev libqt5webkit5-dev libsqlite3-dev
script:
- qmake -qt=qt5 -v
- qmake -qt=qt5
- make
@aras-p
aras-p / preprocessor_fun.h
Last active November 15, 2024 09:22
Things to commit just before leaving your job
// Just before switching jobs:
// Add one of these.
// Preferably into the same commit where you do a large merge.
//
// This started as a tweet with a joke of "C++ pro-tip: #define private public",
// and then it quickly escalated into more and more evil suggestions.
// I've tried to capture interesting suggestions here.
//
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,