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@stuartcarnie
stuartcarnie / main.m
Created March 4, 2011 19:59
Demonstrates we can now support limited JIT compilation on recent versions of iOS (assuming Apple approves entitlements at some future point)
//
// main.m
// ProtectTest
// Demonstrates newer versions of iOS now support PROT_EXEC pages, for just-in-time compilation.
//
// Must be compiled with Thumb disabled
//
// Created by Stuart Carnie on 3/4/11.
// Copyright 2011 Manomio LLC. All rights reserved.
//
@ghedo
ghedo / sound_playback.c
Last active June 19, 2024 02:00
Simple sound playback using ALSA API and libasound
/*
* Simple sound playback using ALSA API and libasound.
*
* Compile:
* $ cc -o play sound_playback.c -lasound
*
* Usage:
* $ ./play <sample_rate> <channels> <seconds> < <file>
*
* Examples:
@jboner
jboner / latency.txt
Last active July 31, 2024 12:33
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
@andphe
andphe / gist:3232343
Created August 2, 2012 01:41
Export your links from Safari reading list
/usr/bin/plutil -convert xml1 -o - ~/Library/Safari/Bookmarks.plist | grep -E -o '<string>http[s]{0,1}://.*</string>' | grep -v icloud | sed -E 's/<\/{0,1}string>//g'
@felipec
felipec / asus_fan.c
Created August 6, 2013 21:51
ASUS fan control
/*
*
* obj-m := fan.o
* KDIR := /lib/modules/$(shell uname -r)/build
* PWD := $(shell pwd)
*
* all:
* $(MAKE) -C $(KDIR) M=$(PWD) modules
*
* clean:
@scy
scy / opening-and-closing-an-ssh-tunnel-in-a-shell-script-the-smart-way.md
Last active July 18, 2024 07:57
Opening and closing an SSH tunnel in a shell script the smart way

Opening and closing an SSH tunnel in a shell script the smart way

I recently had the following problem:

  • From an unattended shell script (called by Jenkins), run a command-line tool that accesses the MySQL database on another host.
  • That tool doesn't know that the database is on another host, plus the MySQL port on that host is firewalled and not accessible from other machines.

We didn't want to open the MySQL port to the network, but it's possible to SSH from the Jenkins machine to the MySQL machine. So, basically you would do something like

ssh -L 3306:localhost:3306 remotehost

#!/usr/bin/ruby
# Create display override file to force Mac OS X to use RGB mode for Display
# see http://embdev.net/topic/284710
require 'base64'
data=`ioreg -l -d0 -w 0 -r -c AppleDisplay`
edids=data.scan(/IODisplayEDID.*?<([a-z0-9]+)>/i).flatten
vendorids=data.scan(/DisplayVendorID.*?([0-9]+)/i).flatten
@joefitzgerald
joefitzgerald / win-updates.ps1
Created December 31, 2013 23:18
Install All Windows Updates, Rebooting As Many Times As Required
param($global:RestartRequired=0,
$global:MoreUpdates=0,
$global:MaxCycles=10)
function Check-ContinueRestartOrEnd() {
$RegistryKey = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run"
$RegistryEntry = "InstallWindowsUpdates"
switch ($global:RestartRequired) {
0 {
$prop = (Get-ItemProperty $RegistryKey).$RegistryEntry
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import json
from oauthlib.oauth2 import (
FatalClientError, OAuth2Error, TokenExpiredError, MobileApplicationClient
)
from requests_oauthlib import OAuth2Session, TokenUpdated
@masahirompp
masahirompp / User.ts
Last active May 5, 2021 20:04
mongoose + typescript
/// <reference path="../tsd/tsd.d.ts" />
import mongoose = require('mongoose');
import passport = require('passport');
interface IUser extends mongoose.Document {
provider: string;
id: string;
authorId: string;
displayName: string;