khajavi

Applied Functional Programming with Scala - Notes

Copyright © 2016-2018 Fantasyland Institute of Learning. All rights reserved.

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x

khajavi

#include<stdio.h>
#include<stdlib.h>
#include<sys/socket.h>
#include<features.h>
#include<linux/if_packet.h>
#include<linux/if_ether.h>
#include<errno.h>
#include<sys/ioctl.h>
#include<net/if.h>
#include<net/ethernet.h>

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#include <linux/module.h>
#include <linux/init.h>
#include <linux/kthread.h>

struct task_struct* ts;

static int thread_func(void)
{
    while (1)
    {

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/**
 * Make sure you include the following in your build.sbt
    "org.json4s"          %% "json4s-core"       % "3.2.10",
    "org.json4s"          %% "json4s-jackson"    % "3.2.10"
 */
import org.json4s._
import org.json4s.jackson.JsonMethods._
import org.json4s.JsonDSL._

case class Candidate(name:Option[String], age:Option[Int], party:Option[String])

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package org.scribe.builder.api;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.scribe.exceptions.OAuthException;
import org.scribe.extractors.AccessTokenExtractor;
import org.scribe.model.OAuthConfig;
import org.scribe.model.OAuthConstants;
import org.scribe.model.OAuthRequest;

khajavi

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>

#include <sys/io.h>

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#include <stdio.h>
#include <unistd.h>
#include <stdint.h>
#include <linux/fd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <fcntl.h>

#define BLKSSZGET  _IO(0x12,104)/* get block device sector size */

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// weibo上有人说到https://github.com/joewalnes/websocketd，我想其原理大致如此（process-wrapper.c）:

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

int wrap_process(const char* exefile) {

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#include <stdio.h>
#include <stdint.h>
#include <unistd.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/utsname.h>

khajavi

// Written by Pioz.
// Compile with: gcc -o autoclick autoclick.c -lX11

#include <stdio.h>
#include <string.h>
#include <X11/Xlib.h>

// Simulate mouse click
void
click (Display *display, int button)