pipeproc
Version:
Multi-process log processing for nodejs
49 lines (48 loc) • 1.83 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const debug_1 = __importDefault(require("debug"));
const commitLog_1 = require("./commitLog");
const ack_1 = require("./ack");
const transaction_1 = require("./transaction");
const d = debug_1.default("pipeproc:node");
function ackCommitLog(db, activeTopics, activeProcs, procName, log, callback) {
d("ack for proc:", procName);
const myProc = activeProcs.find(p => p.name === procName);
if (!myProc) {
return callback(new Error("invalid_proc"), ["", ""]);
}
const creationTime = Date.now();
const tx = transaction_1.transaction(db);
tx.add(ack_1.prepareAck(db, myProc));
d("acking:", myProc.lastClaimedRange);
d("new log(s):\n%O", log);
if (Array.isArray(log)) {
log.forEach(l => tx.add(commitLog_1.preCommit(db, activeTopics, l, creationTime)));
}
else {
tx.add(commitLog_1.preCommit(db, activeTopics, log, creationTime));
}
tx.commitUpdate(function (err, lastAckedAt, commit) {
if (err) {
callback(err, ["", ""]);
}
else if (lastAckedAt && (typeof commit === "string" || (Array.isArray(commit) && commit.length > 0))) {
myProc.lastAckedRange = myProc.lastClaimedRange;
myProc.lastAckedAt = lastAckedAt;
myProc.reclaims = 0;
if (Array.isArray(log)) {
callback(null, [myProc.lastAckedRange, commit]);
}
else {
callback(null, [myProc.lastAckedRange, commit]);
}
}
else {
callback(null, ["", ""]);
}
});
}
exports.ackCommitLog = ackCommitLog;