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The Dining Philosophers Code

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This code implements a solution to the Dining Philosophers Problem, a classic synchronization problem in computer science. The problem describes a scenario where a group of philosophers sits around a circular table. Each philosopher alternates between thinking and eating, and they require two chopsticks (shared resources) to eat. The challenge is to prevent deadlock and ensure that all philosophers can eat eventually.

Modules Overview

1. Chopstick

The Chopstick module simulates a single chopstick. It keeps track of whether the chopstick is in use and handles requests from philosophers to either pick up or release the chopstick.

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#!/bin/bash

EXT_DRIVE="/Volumes/Untitled/important"
MAIN_DRIVE="/Users/tanjimhossain/Pictures"

# Ensure fd is installed
if ! command -v fd &>/dev/null; then
  echo "Error: 'fd' is not installed. Please install it before running this script."
  exit 1
fi

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/etc/systemd/system/ssh_watchdog.service
/usr/local/bin/ssh_watchdog.sh

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x-postgres-environment: &postgres-environment
  POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-postgres}
  POSTGRES_USER: ${POSTGRES_USER:-postgres}
  # POSTGRES_DB: ${POSTGRES_DB:-postgres}
  POSTGRESQL_REPLICATION_USER: ${POSTGRESQL_REPLICATION_USER:-replicator}
  POSTGRESQL_REPLICATION_PASSWORD: ${POSTGRESQL_REPLICATION_PASSWORD:-replicator}
  POSTGRESQL_LOG_HOSTNAME: ${POSTGRESQL_LOG_HOSTNAME:-true}
x-postgres-healthcheck: &postgres-healthcheck
  test: [ "CMD", "pg_isready", "-U", "postgres" ]
  interval: 5s

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#!/bin/bash

cd /tmp
wget https://amazoncloudwatch-agent.s3.amazonaws.com/ubuntu/amd64/latest/amazon-cloudwatch-agent.deb
sudo dpkg -i -E ./amazon-cloudwatch-agent.deb
echo '{
  "agent": {
    "metrics_collection_interval": 60,
    "run_as_user": "cwagent"
  },

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#!/bin/bash

# Function to create swap files
create_swap_files() {
    local count=$1
    local swap_directory=${2:-/var/}
    local swap_file_prefix="swapfile"

    for ((i=1; i<=count; i++)); do
        swap_file="${swap_directory}/${swap_file_prefix}${i}"

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git diff --word-diff

git config --global rerere.enabled true
git config --global rerere.autoUpdate true

git config --global branch.sort -committerdate

git config --global column.ui auto

git push --force-with-lease

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apiVersion: cert-manager.io/v1
kind: Issuer
metadata:
  name: self-signed
spec:
  selfSigned: {}
---
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:

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use std::{any::Any, collections::HashMap, net::SocketAddr, ops::Range, sync::Arc, time::Duration};

use anyhow::{anyhow, bail, Error, Result};
use axum::{
    // debug_handler,
    extract::{FromRef, Path, State},
    http::{header::HeaderMap, StatusCode},
    routing::{get, post},
    Json,
    Router,

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version: "3"

tasks:
  default: task --list-all
  # provision
  prod:up: INFRA=prod bin/up.sh
  dev:up: bin/up.sh
  # access
  argo:password: echo "Bearer $(kubectl get secret -n argo default.service-account-token -o=jsonpath='{.data.token}' | base64 --decode)"
  argo:port-forward: kubectl port-forward -n argo svc/argo-server 2746