leohacker’s gists

leohacker / PerformanceRelated.txt

Created October 18, 2016 14:01 — forked from neomatrix369/PerformanceRelated.md

Interesting links in the areas of HPC, low latency, mechanical harmony/sympathy, garbage collection

	Everything I Ever Learned About JVM Performance Tuning @Twitter- by Attila Szegedi
	http://www.infoq.com/presentations/JVM-Performance-Tuning-twitter (video & slides)

	9 Fallacies of Java Performance - by Ben Evans
	http://www.infoq.com/articles/9_Fallacies_Java_Performance (video & slides)

	Visualizing Java GC - by Ben Evans
	http://www.infoq.com/presentations/Visualizing-Java-GC (video & slides)

leohacker / ABS_Snippet.md

Last active July 20, 2016 16:19

Bash Snippet

Advanced Bash Scripting Guide

Code snippet from ABS.

leohacker / init.coffee

Last active August 9, 2016 15:11

automatic update by http://atom.io/packages/sync-settings

# initialization file (not found)

leohacker / gist:e701ff3d00c0e52035bbed96d86af1f7

Created June 12, 2016 05:51

Indirect reference in bash ( check a variable if its value as variable is set )

	# varname=USER or PROFILE_PATH
	# $varname == USER
	# $$ pid of current process
	# \$$varname == $USER in literal
	# eval variable=..... evaluate and assign to variable

	eval variable=\$$varname

leohacker / AFHTTPRequestOperationManager2.m

Last active August 29, 2015 14:16

AFNetworking Official Code Snippets

	AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
	NSDictionary *parameters = @{@"foo": @"bar"};
	[manager POST:@"http://example.com/resources.json" parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
	NSLog(@"JSON: %@", responseObject);
	} failure:^(AFHTTPRequestOperation operation, NSError error) {
	NSLog(@"Error: %@", error);
	}];

leohacker / AFNetworking

Last active August 29, 2015 14:14

AFNetworking Snippets

list AFNetworking Snippets here.

leohacker / gist:e9b7adf66370cb9fae50

Last active August 29, 2015 14:14 — forked from fgarcia/gist:3968236

Podfile Sample

	# vim:ft=Ruby
	#
	# Base Podfile template for projects targeting OSX and iOS
	#
	# Author: Francisco Garcia <[email protected]>
	# https://github.com/fgarcia
	#
	# Last Update: 2012-11-28

leohacker / OC_sqlite3_open.m

Last active August 29, 2015 14:14

Find the path for resource, open the sqlite3 database.

	- (id)init {
	if ((self = [super init])) {
	NSString *sqLiteDb = [[NSBundle mainBundle] pathForResource:@"banklist"
	ofType:@"sqlite3"];

	if (sqlite3_open([sqLiteDb UTF8String], &_database) != SQLITE_OK) {
	NSLog(@"Failed to open database!");
	}
	}
	return self;

leohacker / 1_ruby_quicksort.rb

Last active August 29, 2015 14:14

Here are some things you can do with Gists in GistBox.

	# Use Gists to store entire functions
	class QuickSort

	def self.sort!(keys)
	quick(keys,0,keys.size-1)
	end

	private

	def self.quick(keys, left, right)