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import {
SynStart,
SynEnd,
wait,
notify,
SharedBoolean,
SharedString,
SharedNumber,
Syc,
isMainThread,
addFunc,
Runnable,
Thread,
} from './ThreadBridge';
export function sharedWash(runnable: Runnable) {
let archetype: Runnable;
if (runnable.className === 'Customer') {
archetype = new Customer(new Semaphores(), 0); // Example instantiation with default values
} else if (runnable.className === 'Server') {
archetype = new Server(new Semaphores()); // Example instantiation with default values
} else {
archetype = new Thread();
}
addFunc(runnable, archetype);
runnable.run();
}
class QueuingMachine {
public syn: Syc = new Syc();
public static staticSyn: Syc = new Syc();
public className: string = 'QueuingMachine';
public static main(args: string[]): void {
const semaphores = new Semaphores();
const server = new Thread(new Server(semaphores));
const customer1 = new Thread(new Customer(semaphores, 1));
const customer2 = new Thread(new Customer(semaphores, 2));
const customer3 = new Thread(new Customer(semaphores, 3));
const customer4 = new Thread(new Customer(semaphores, 4));
server.start();
customer1.start();
customer2.start();
customer3.start();
customer4.start();
}
}
class Semaphores {
public empty = new SharedNumber(10);
public mutex = new SharedBoolean(true);
public full = new SharedNumber(0);
public service = new SharedBoolean(false);
public syn: Syc = new Syc();
public static staticSyn: Syc = new Syc();
public className: string = 'Semaphores';
public pEmpty(): boolean {
SynStart(this.syn);
if (this.empty.getValue() > 0) {
this.empty.setValue(this.empty.getValue() - 1);
SynEnd(this.syn);
return true;
} else {
SynEnd(this.syn);
return false;
}
}
public pFull(): boolean {
SynStart(this.syn);
if (this.full.getValue() > 0) {
this.full.setValue(this.full.getValue() - 1);
SynEnd(this.syn);
return true;
} else {
SynEnd(this.syn);
return false;
}
}
public pMutex(): boolean {
SynStart(this.syn);
if (this.mutex.getValue()) {
this.mutex.setValue(false);
SynEnd(this.syn);
return true;
} else {
SynEnd(this.syn);
return false;
}
}
public pService(): boolean {
SynStart(this.syn);
if (this.service.getValue()) {
this.service.setValue(false);
SynEnd(this.syn);
return true;
} else {
SynEnd(this.syn);
return false;
}
}
public vEmpty(): void {
SynStart(this.syn);
this.empty.setValue(this.empty.getValue() + 1);
SynEnd(this.syn);
}
public vFull(): void {
SynStart(this.syn);
this.full.setValue(this.full.getValue() + 1);
SynEnd(this.syn);
}
public vMutex(): void {
SynStart(this.syn);
this.mutex.setValue(true);
SynEnd(this.syn);
}
public vService(): void {
SynStart(this.syn);
this.service.setValue(true);
SynEnd(this.syn);
}
}
class Customer implements Runnable {
public syn: Syc = new Syc();
public static staticSyn: Syc = new Syc();
public className: string = 'Customer';
public semaphores: Semaphores;
public rank = new SharedNumber();
constructor(semaphores: Semaphores, rank: number) {
this.semaphores = semaphores;
this.rank.setValue(rank);
}
run(): void {
while (!this.semaphores.pEmpty()) {}
while (!this.semaphores.pMutex()) {}
console.log(`Customer ${this.rank.getValue()} takes a number.`);
this.semaphores.vMutex();
this.semaphores.vFull();
while (!this.semaphores.pService()) {}
console.log(`Customer ${this.rank.getValue()} gets service.`);
}
}
class Server implements Runnable {
public syn: Syc = new Syc();
public static staticSyn: Syc = new Syc();
public className: string = 'Server';
public semaphores: Semaphores;
constructor(semaphores: Semaphores) {
this.semaphores = semaphores;
}
run(): void {
while (true) {
while (!this.semaphores.pFull()) {}
this.semaphores.vEmpty();
this.semaphores.vService();
console.log('Server serves.');
}
}
}
if (isMainThread()) {
// You can put the entry of your code here to test.
}