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warmwaffles / defer.c
Created September 30, 2020 22:09 — forked from jart/defer.c
Go-like defer for C that works with most optimization flag combinations under GCC/Clang
#include "gc.h"
/**
* Adds destructor to garbage shadow stack.
*
* @param frame is passed automatically by wrapper macro
* @param fn takes one argument
* @param arg is passed to fn(arg)
* @return arg
*/
@warmwaffles
warmwaffles / sxhkdrc
Last active June 11, 2020 16:39
# WM {{{
# Focus node
# If no window exist, target monitor/desktop instead
super + k
bspc node -f north || bspc monitor -f north
super + j
bspc node -f south || bspc monitor -f south
super + h
bspc node -f west || bspc monitor -f west || bspc desktop -f prev
@warmwaffles
warmwaffles / xorshiftrng128.c
Created June 10, 2018 16:35
#include <stdint.h>
uint64_t s[2];
uint64_t
xorshiftrng128(void)
{
uint64_t s1 = s[0];
uint64_t s0 = s[1];
uint64_t result = s0 + s1;
@warmwaffles
warmwaffles / GeodesicSphere.js
Created April 18, 2018 04:14 — forked from Inscrutabilis/GeodesicSphere.js
Three.js geodesic sphere primitive class
/**
* @author Inscrutabilis / mailto:iinscrutabilis@gmail.com
*/
/*
* Generates a geodesic sphere geometry
* By default, it is 1x1x1 octahedron, as a first approximation to sphere
* It will return more sphere-like object if you specify iterations > 0
* But please keep in mind that it generates (4 ^ iterations) * 8 faces
* Radius argument overrides default sphere radius (1)
@warmwaffles
warmwaffles / sprite.frag
Created April 16, 2018 05:52
#version 330 core
in vec2 v_texcoord;
in vec4 v_color;
uniform sampler2D u_tex;
uniform mat4 u_combined;
out vec4 f_color;
@warmwaffles
warmwaffles / stopwatch.rb
Last active March 29, 2018 21:15
Quick stopwatch to do some basic timings in ruby
#
# A simple stop watch for a quick timer to check app performance
#
# @see https://blog.dnsimple.com/2018/03/elapsed-time-with-ruby-the-right-way/
#
# @example Basic Usage
# timer = Stopwatch.new
# timer.start #=> 59539.814152996
# timer.stop #=> 59544.700881683
# timer.elapsed #=> 4.886728687000868
@warmwaffles
warmwaffles / pgcat.c
Created February 12, 2018 18:01
Take a PGCOPY binary in via stdin and output via stdout
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <stdbool.h>
#include <arpa/inet.h>
typedef struct buffer
{
uint32_t length;
uint32_t capacity;
@warmwaffles
warmwaffles / mach_gettime.c
Created January 30, 2018 07:15 — forked from alfwatt/mach_gettime.c
#include "mach_gettime.h"
#include <mach/mach_time.h>
#define MT_NANO (+1.0E-9)
#define MT_GIGA UINT64_C(1000000000)
// TODO create a list of timers,
static double mt_timebase = 0.0;
static uint64_t mt_timestart = 0;
@warmwaffles
warmwaffles / postgres_queries_and_commands.sql
Created January 18, 2018 21:06 — forked from rgreenjr/postgres_queries_and_commands.sql
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(query_start, clock_timestamp()), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(query_start, clock_timestamp()), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
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warmwaffles / smartctl_prometheus_exporter.rb
Last active December 28, 2017 05:40
HOSTNAME = %x{hostname}.chomp
PROM_FILE = ARGV[0] != 'test' ? '/var/lib/node_exporter/textfile_collector/smartctl.prom' : '/tmp/smartctl.prom'
DEVICES = [
'/dev/sda',
'/dev/sdb',
'/dev/sdc',
'/dev/sdd',
'/dev/sde',