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(This is a backup of https://samulinatri.com/blog/memory-management)

Memory Arena Tutorial in C

How to create a simple arena allocator in C.

Quick Start

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// From: https://cplusplus.com/forum/beginner/94946/
// By: https://cplusplus.com/user/Disch/


#define FPS 60

int frame_length = 1000 / FPS;    // Number of ms between frames. 17 gives you approx 60 FPS  (1000 / 60)
Uint32 next_frame;                // Timestamp that next frame is to occur
int skipped_frames;               // Number of frames we have skipped

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Source material:
  http://security.stackexchange.com/questions/24444/what-is-the-most-hardened-set-of-options-for-gcc-compiling-c-c
  https://wiki.gentoo.org/wiki/Hardened_Gentoo
  https://wiki.debian.org/Hardening

================================================================================================================>
GCC Security related flags and options:

CFLAGS="-fPIE -fstack-protector-all -D_FORTIFY_SOURCE=2" 
LDFLAGS="-Wl,-z,now -Wl,-z,relro"

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#!/usr/bin/env python

# A simple plugin for hiding/showing all layers.

from gimpfu import *

def hide_show_all_layers(origin, hide):
    layers = origin.layers

    pdb.gimp_undo_push_group_start(origin)

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Byobu (over SSH) Cheat Sheet

I often find myself using Byobu on a Linux machine when connected to it over SSH. In doing so, I've noticed that many of the documented keyboard shortcuts don't work. This can be due to the native PC's OS intercepting certain keys, or possibly other reasons.

Below is a cheatsheet with Byobu features I have found usually work when run over a SSH connection.

Action	Windows + Putty to Ubuntu	MacOS + Terminal to Ubuntu
Help menu	BASH: byobu-config	FN-F1
Create new window	CTRL-a c	CTRL-a c or FN-F2

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:lua vim.api.nvim_open_win(0, true, {relative='win', width=200, height=200, row=16, col=16})

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# Taking a few things from my fish cfg back to bash: vi keys, branch name in prompt, custom prompt, completion (with fzf)
# Custom prompt
# Vi keys
# History
# Completion (Using fzf & fzf-tab-completion)

# Tip: Install bashmarks and fasd for faster directory browsing

# Custom prompt: Add to .bashrc
# Helps reset prompt when tty crashes

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#!/usr/bin/env node
/* 
Usage: ./to-netscape-bookmarks.sh urls | tee bookmarks.html
urls is a simple textfile with urls separated by breakline
Titles are pulled with pup tool
*/

const { exec } = require('child_process'), fs = require('fs'), readline = require('readline')

const file = process.argv[2]

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#!/usr/bin/env python

# A simple plugin for copying layers.
# The layers can be copied in normal or reverse order,
# and can be placed at the top or bottom of the destination's layers,
# or above the selected layer in the destination.

from gimpfu import *

def copy_layers(origin, dest, order, position):

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#!/usr/bin/env python

# GIMP Python plug-in template.

# To run the plugin, place it in .config/GIMP/plug-ins/PLUG_DIR/PLUG_NAME.py
# Where PLUG_DIR and PLUG_NAME are the name of your script e.g. myscript/myscript.py
# Note for AppImage version replace GIMP with GIMP-AppImage
# make the script executable (chmod +x myscript.py)

from gimpfu import *