seanavery

//libusb+ch340 data transfer demo
//gcc usb.c `pkg-config libusb-1.0 --libs --cflags` -o usb
#include <errno.h>
#include <signal.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/select.h>

seanavery

# https://stackoverflow.com/questions/28908319/how-to-clear-an-ipython-notebooks-output-in-all-cells-from-the-linux-terminal
jupyter nbconvert --ClearOutputPreprocessor.enabled=True --clear-output *.ipynb

seanavery

// source: https://stackoverflow.com/questions/57113226/how-to-prevent-google-colab-from-disconnecting
// author: Tanay Karve
function ConnectButton(){
    console.log("Connect pushed"); 
    document.querySelector("#top-toolbar > colab-connect-button").shadowRoot.querySelector("#connect").click() 
}
setInterval(ConnectButton,60000);

seanavery

xinput --set-prop $MOUSE_ID "Coordinate Transformation Matrix" 0.1 0 0 0 0.1 0 0 0 1

seanavery

import subprocess

# grab subnet address
ps = subprocess.Popen('ifconfig', stdout=subprocess.PIPE, shell=True)
output = subprocess.check_output(('grep', 'inet'), stdin=ps.stdout)
ps.wait()
elements = output.decode('utf8').split()
broadcast_ip = elements[elements.index('broadcast') + 1]
print('broadcast_ip: {}'.format(broadcast_ip))
subnet = broadcast_ip[:-4]

seanavery

import random
import time

class Simulation():
    def __init__(self):
        self.sigma = 2;
        self.score = random.randint(1, 100)
        print('### network score', self.score)

    def simulate(self):

seanavery

function contractExists(address adrs) internal returns (bool) {
    uint length;
    assembly {
      length := extcodesize(adrs)
    }
    if (length > 0) {
      return true;
    } else {
      return false;
    }

seanavery

pragma solidity ^0.4.11;

import "./Token.sol";

contract Settlement {
  bytes32 public permutationID;
  address public tokenA;
  address public tokenB;

  mapping(address => mapping(bytes32 => uint)) public orders;

seanavery

contract Exchange {
    
    struct Bid {
        address owner;
        uint price;
        uint amount;
        uint date;
    }
    
    struct Ask {

seanavery

 function submitBid(uint _price, uint _amount) bidInMarket(_price) external returns (bool) {
        Bid memory b;
        b.price = _price;
        b.amount = _amount;
        for(uint i = 0; i < Bids.length; i++) {
            if(Bids[i].price > _price) {
                Bid[] memory tempBids = new Bid[](Bids.length - i);
                for(uint j = i; j < Bids.length; j++) {
                    tempBids[j-i] = Bids[j];
                }