@maximai/maxim-js
Version:
Maxim AI JS SDK. Visit https://getmaxim.ai for more info.
52 lines • 1.75 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.Semaphore = void 0;
const platform_1 = require("../platform");
class Semaphore {
constructor(key, maxLocks) {
this.key = Semaphore.hash(key);
this.maxLocks = maxLocks;
this.currentLocks = 0;
this.queue = [];
// Store the semaphore instance in the static map
Semaphore.semaphores.set(this.key, this);
}
static hash(key) {
return platform_1.platform.crypto.createHash("md5").update(key).digest("hex");
}
async acquire() {
// If there are available locks, acquire immediately
if (this.currentLocks < this.maxLocks) {
this.currentLocks++;
return Promise.resolve();
}
// Otherwise, add to the queue and wait
return new Promise((resolve) => {
this.queue.push(resolve);
});
}
release() {
if (this.currentLocks > 0) {
this.currentLocks--;
// If there are waiting processes in the queue, resolve the next one
if (this.queue.length > 0) {
const nextResolver = this.queue.shift();
if (nextResolver) {
this.currentLocks++;
nextResolver();
}
}
}
}
// Static method to get or create a Semaphore instance
static get(key, maxLocks) {
const hashedKey = Semaphore.hash(key);
if (!Semaphore.semaphores.has(hashedKey)) {
return new Semaphore(key, maxLocks);
}
return Semaphore.semaphores.get(hashedKey);
}
}
exports.Semaphore = Semaphore;
Semaphore.semaphores = new Map();
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