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@Plecra
Plecra / proxy.rs
Created May 3, 2020 17:00
A smol proxy server
use anyhow::*;
use futures::io::{copy, AsyncReadExt, AsyncWriteExt};
use futures::stream::StreamExt;
use log::*;
use smol::Async;
use std::net;
const PORT: u16 = 5000;
@fragsalat
fragsalat / proxy.rs
Created November 28, 2019 15:24
A simple and lightweight multi threaded TCP proxy written in Rust language. Not using any 3rd-party libraries but just standard libraries.
use std::net::{TcpListener, SocketAddr, TcpStream, Shutdown, SocketAddrV4, Ipv4Addr};
use std::str::FromStr;
use std::thread::{spawn, JoinHandle};
use std::io::{BufReader, BufWriter, Read, Write};
fn pipe(incoming: &mut TcpStream, outgoing: &mut TcpStream) -> Result<(), String> {
let mut buffer = [0; 1024];
loop {
match incoming.read(&mut buffer) {
Ok(bytes_read) => {
@iamralch
iamralch / compress.go
Last active April 16, 2023 03:04
ZIP archives in Golang
import (
"archive/zip"
"io"
"os"
"path/filepath"
"strings"
)
func zipit(source, target string) error {
zipfile, err := os.Create(target)
@fphilipe
fphilipe / exclude.sql
Last active April 25, 2024 23:17
PostgreSQL EXCLUDE constraint
CREATE EXTENSION btree_gist;
CREATE TABLE room_reservations (
room_id integer,
reserved_at timestamptz,
reserved_until timestamptz,
canceled boolean DEFAULT false,
EXCLUDE USING gist (
room_id WITH =, tstzrange(reserved_at, reserved_until) WITH &&
) WHERE (not canceled)
@staltz
staltz / introrx.md
Last active May 24, 2024 07:56
The introduction to Reactive Programming you've been missing
@soheilhy
soheilhy / nginxproxy.md
Last active May 16, 2024 08:59
How to proxy web apps using nginx?

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

@hgmnz
hgmnz / query_planner.markdown
Created March 23, 2011 14:14
PostgreSQL query plan and SQL performance notes

Types of index scans

Indexes

Sequential Scan:

  • Read every row in the table
  • No reading of index. Reading from indexes is also expensive.