abcdabcd987

import os
import sys
import struct
import time
import select
import socket
import binascii

ICMP_ECHO_REQUEST = 8

abcdabcd987

#!/bin/bash
# save as /root/del_user.sh

USERNAME=$1
if [[ -z "$USERNAME" ]]; then
    echo "Please give me a username"
    exit 1
fi

echo "This script will"

abcdabcd987

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/* ******************************************************************
 ALTERNATING BIT AND GO-BACK-N NETWORK EMULATOR: VERSION 1.1  J.F.Kurose
   
   This code should be used for PA2, unidirectional or bidirectional
   data transfer protocols (from A to B. Bidirectional transfer of data
   is for extra credit and is not required).  Network properties:

abcdabcd987

// g++-7 sharding.cc -Wall -std=c++17 -g -pthread -O2 -ltbb

#include <cassert>
#include <cstdlib>
#include <cstring>
#include <string>
#include <mutex>
#include <shared_mutex>
#include <optional>
#include <random>

abcdabcd987

#if 0
set -e
binname=$(mktemp --suffix -delay-fs.bin)
g++ -o "$binname" -Wall -g -O2 "$0" -lfuse3 -lpthread
"$binname" $@
rm "$binname"
exit
#endif
// delay-fs:
//   A filesystem from which reading a file incurs 50ms delay for each byte.

abcdabcd987

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/* ******************************************************************
 ALTERNATING BIT AND GO-BACK-N NETWORK EMULATOR: VERSION 1.1  J.F.Kurose
   
   This code should be used for PA2, unidirectional or bidirectional
   data transfer protocols (from A to B. Bidirectional transfer of data
   is for extra credit and is not required).  Network properties:

abcdabcd987

#include <vector>

/**
 Given an non-decreasing ordered array `arr`, search the biggest `i` that makes `arr[i] == value`.
 If `i` doesn't exist, return -1
 */
int search_last_match(const std::vector<int>& arr, const int value)
{
    int lef = 0, rig = static_cast<int>(arr.size());
    while (rig-lef > 1)

abcdabcd987

#!/bin/bash
# thanks to http://stackoverflow.com/a/20743090
# thanks to https://github.com/diogovk/c2nasm
# install objconv: https://github.com/vertis/objconv
#
# $1: source code

set -e
C_FILE="$1"
BASE_NAME="${C_FILE%.*}"

abcdabcd987

// g++ cache-prefetching.cc -Wall -std=c++11 -g -pthread -O2

#include <string>
#include <vector>
#include <mutex>
#include <random>
#include <chrono>
#include <thread>
#include <iomanip>
#include <iostream>

abcdabcd987

diff -ruN orig/bootloader/Xargo.toml new/bootloader/Xargo.toml
--- orig/bootloader/Xargo.toml	2018-07-18 23:59:41.000000000 +0800
+++ new/bootloader/Xargo.toml	2018-07-19 22:31:03.000000000 +0800
@@ -2,10 +2,6 @@
 core = {}
 std_unicode = {}
 
-[dependencies.compiler_builtins]
-features = ["mem"]
-stage = 1