ugovaretto

use std::{
    fs::File,
    io::{Read, Write},
    time::Instant,
};
use tokio::task::{self, JoinHandle};

async fn compute() {
    let handles: Vec<JoinHandle<_>> = (0..1000)
        .map(|_| {

ugovaretto

[package]
name = "yourpackage"
version = "0.1.0"
authors = ["John Doe"]
edition = "2018"

[[bin]]
name = "example"
path = "stream-a-file-using-rust-hyper.rs"

ugovaretto

Rust-Analyzer Customization Tips

Customize mutable style

Video - Rust Tip - Customize Mutable Colors in VSCode

In the settings.json add the following:

    "editor.semanticTokenColorCustomizations": {

ugovaretto

Features

• Automatically bump SemVer
• Update a personal homebrew tap
• Keep that pesky version in the Cargo.toml up to date
• (From dependabot) Get new versions out as soon as possible

Assumptions

• You don't want a changelog

ugovaretto

// Here is an extremely simple version of work scheduling for multiple
// processors.
//
// The Problem: 
//  We have a lot of numbers that need to be math'ed. Doing this on one 
//  CPU core is slow. We have 4 CPU cores. We would thus like to use those
//  cores to do math, because it will be a little less slow (ideally
//  4 times faster actually).
//
// The Solution:

ugovaretto

#![feature(unique)]

use std::thread::spawn;

// operating on a vector in parallel
fn main() {
  let mut data:Vec<u32> = vec![1u32, 2, 3];
  println!("{:?}", data);
  let head = data.as_mut_ptr();
  let mut guards = (0..3).map(|i|

ugovaretto

let offset = 20000;
let chunk_size = 10000;

// File handle:
let mut handle = BufReader::new(File::open("data.bin").await?);

// Set cursor to needed chunk:
let mut chunk_stream = handle
    .bytes()
    .skip(offset)

ugovaretto

CL_SUCCESS                                  0
CL_DEVICE_NOT_FOUND                         -1
CL_DEVICE_NOT_AVAILABLE                     -2
CL_COMPILER_NOT_AVAILABLE                   -3
CL_MEM_OBJECT_ALLOCATION_FAILURE            -4
CL_OUT_OF_RESOURCES                         -5
CL_OUT_OF_HOST_MEMORY                       -6
CL_PROFILING_INFO_NOT_AVAILABLE             -7
CL_MEM_COPY_OVERLAP                         -8
CL_IMAGE_FORMAT_MISMATCH                    -9

ugovaretto

/*
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 */

#include <arpa/inet.h>
#include <linux/if_packet.h>
#include <stdio.h>

ugovaretto

/*
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 */

#include <arpa/inet.h>
#include <linux/if_packet.h>
#include <linux/ip.h>