Reduced prefix/disabled channel cache to 512, made API delete images if they haven't been requested after 5 minutes

This commit is contained in:
TheEssem 2021-04-14 18:02:03 -05:00
parent b3d3df2cb7
commit 7cc8ac7b6b
2 changed files with 33 additions and 20 deletions

View file

@ -11,7 +11,16 @@ const log = (msg, jobNum) => {
console.log(`[${process.hrtime(start)[1] / 1000000}${jobNum !== undefined ? `:${jobNum}` : ""}]\t ${msg}`);
};
const jobs = {};
class JobCache extends Map {
set(key, value) {
super.set(key, value);
setTimeout(() => {
if (super.has(key) && this.get(key) === value) super.delete(key);
}, 300000); // delete jobs if not requested after 5 minutes
}
}
const jobs = new JobCache();
// Should look like UUID : { addr : "someaddr", port: someport, msg: "request" }
const queue = [];
// Array of UUIDs
@ -25,15 +34,16 @@ const acceptJob = async (uuid, sock) => {
jobAmount++;
queue.shift();
try {
const job = jobs.get(uuid);
await runJob({
uuid: uuid,
msg: jobs[uuid].msg,
num: jobs[uuid].num
msg: job.msg,
num: job.num
}, sock);
log(`Job ${uuid} has finished`);
} catch (err) {
console.error(`Error on job ${uuid}:`, err);
delete jobs[uuid];
jobs.delete(uuid);
sock.write(Buffer.concat([Buffer.from([0x2]), Buffer.from(uuid), Buffer.from(err.message)]));
} finally {
jobAmount--;
@ -54,16 +64,16 @@ const httpServer = http.createServer((req, res) => {
return res.end(Buffer.from((MAX_JOBS - jobAmount).toString()));
} else if (reqUrl.pathname === "/running") {
log(`Sending currently running jobs to ${req.socket.remoteAddress}:${req.socket.remotePort} via HTTP`);
const keys = Object.keys(jobs);
const keys = jobs.keys();
const newObject = { queued: queue.length, runningJobs: jobAmount, max: MAX_JOBS };
for (const key of keys) {
const validKeys = Object.keys(jobs[key]).filter((value) => value !== "addr" && value !== "port" && value !== "data" && value !== "ext");
const validKeys = Object.keys(jobs.get(key)).filter((value) => value !== "addr" && value !== "port" && value !== "data" && value !== "ext");
newObject[key] = {};
for (const validKey of validKeys) {
if (validKey === "msg") {
newObject[key][validKey] = JSON.parse(jobs[key][validKey]);
newObject[key][validKey] = JSON.parse(jobs.get(key)[validKey]);
} else {
newObject[key][validKey] = jobs[key][validKey];
newObject[key][validKey] = jobs.get(key)[validKey];
}
}
}
@ -74,15 +84,15 @@ const httpServer = http.createServer((req, res) => {
return res.end("400 Bad Request");
}
const id = reqUrl.searchParams.get("id");
if (!jobs[id]) {
if (!jobs.has(id)) {
res.statusCode = 410;
return res.end("410 Gone");
}
log(`Sending image data for job ${id} to ${req.socket.remoteAddress}:${req.socket.remotePort} via HTTP`);
res.setHeader("ext", jobs[id].ext);
return res.end(jobs[id].data, (err) => {
res.setHeader("ext", jobs.get(id).ext);
return res.end(jobs.get(id).data, (err) => {
if (err) console.error(err);
delete jobs[id];
jobs.delete(id);
});
} else {
res.statusCode = 404;
@ -113,14 +123,14 @@ const server = net.createServer((sock) => { // Create a TCP socket/server to lis
// 0x01 == Queue job
if (opcode == 0x00) {
delete queue[queue.indexOf(req) - 1];
delete jobs[req];
jobs.delete(req);
} else if (opcode == 0x01) {
const length = parseInt(req.slice(0, 1));
const num = req.slice(1, length + 1);
const obj = req.slice(length + 1);
const job = { addr: sock.remoteAddress, port: sock.remotePort, msg: obj, num: jobAmount };
const uuid = uuidv4();
jobs[uuid] = job;
jobs.set(uuid, job);
queue.push(uuid);
const newBuffer = Buffer.concat([Buffer.from([0x00]), Buffer.from(uuid), Buffer.from(num)]);
@ -144,9 +154,10 @@ const server = net.createServer((sock) => { // Create a TCP socket/server to lis
// handle ctrl+c and pm2 stop
process.on("SIGINT", () => {
console.log("SIGINT detected, shutting down...");
for (const job of Object.keys(jobs)) {
if (jobs[job].addr === sock.remoteAddress && jobs[job].port === sock.remotePort) {
delete jobs[job];
for (const job of jobs.keys()) {
const jobObject = jobs.get(job);
if (jobObject.addr === sock.remoteAddress && jobObject.port === sock.remotePort) {
jobs.delete(job);
sock.write(Buffer.concat([Buffer.from([0x2]), Buffer.from(job), Buffer.from("Job ended prematurely (not really an error; just run your image job again)")]));
}
}
@ -174,8 +185,10 @@ const runJob = async (job, sock) => {
log(`Job ${job.uuid} started`, job.num);
const data = await run(object).catch(e => { throw e; });
log(`Sending result of job ${job.uuid} back to the bot`, job.num);
jobs[job.uuid].data = data.buffer;
jobs[job.uuid].ext = data.fileExtension;
const jobObject = jobs.get(job.uuid);
jobObject.data = data.buffer;
jobObject.ext = data.fileExtension;
jobs.set(job.uuid, jobObject);
sock.write(Buffer.concat([Buffer.from([0x1]), Buffer.from(job.uuid)]), (e) => {
if (e) throw e;
});

View file

@ -17,7 +17,7 @@ exports.runningCommands = new TimedMap();
class Cache extends Map {
constructor(values) {
super(values);
this.maxValues = 1024;
this.maxValues = 512;
}
set(key, value) {