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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.flushAllTraces = exports.trace = exports.SpanStatus = void 0;
var _indexCjs = require("next/dist/compiled/nanoid/index.cjs");
var _report = require("./report");
const NUM_OF_MICROSEC_IN_SEC = BigInt('1000');
const nanoid = (0, _indexCjs).customAlphabet('0123456789abcdefghijklmnopqrstuvwxyz', 8);
const getId = ()=>Buffer.from(nanoid(), 'utf8').toString('hex')
;
var SpanStatus;
exports.SpanStatus = SpanStatus;
(function(SpanStatus) {
SpanStatus[SpanStatus["Started"] = 0] = "Started";
SpanStatus[SpanStatus["Stopped"] = 1] = "Stopped";
})(SpanStatus || (exports.SpanStatus = SpanStatus = {
}));
class Span {
constructor({ name , parentId , attrs , startTime }){
this.name = name;
this.parentId = parentId;
this.duration = null;
this.attrs = attrs ? {
...attrs
} : {
};
this.status = SpanStatus.Started;
this.id = getId();
this._start = startTime || process.hrtime.bigint();
}
// Durations are reported as microseconds. This gives 1000x the precision
// of something like Date.now(), which reports in milliseconds.
// Additionally, ~285 years can be safely represented as microseconds as
// a float64 in both JSON and JavaScript.
stop(stopTime) {
const end = stopTime || process.hrtime.bigint();
const duration = (end - this._start) / NUM_OF_MICROSEC_IN_SEC;
this.status = SpanStatus.Stopped;
if (duration > Number.MAX_SAFE_INTEGER) {
throw new Error(`Duration is too long to express as float64: ${duration}`);
}
const timestamp = this._start / NUM_OF_MICROSEC_IN_SEC;
_report.reporter.report(this.name, Number(duration), Number(timestamp), this.id, this.parentId, this.attrs);
}
traceChild(name, attrs) {
return new Span({
name,
parentId: this.id,
attrs
});
}
manualTraceChild(name, startTime, stopTime, attrs) {
const span = new Span({
name,
parentId: this.id,
attrs,
startTime
});
span.stop(stopTime);
}
setAttribute(key, value) {
this.attrs[key] = String(value);
}
traceFn(fn) {
try {
return fn();
} finally{
this.stop();
}
}
async traceAsyncFn(fn) {
try {
return await fn();
} finally{
this.stop();
}
}
}
exports.Span = Span;
const trace = (name, parentId, attrs)=>{
return new Span({
name,
parentId,
attrs
});
};
exports.trace = trace;
const flushAllTraces = ()=>_report.reporter.flushAll()
;
exports.flushAllTraces = flushAllTraces;
//# sourceMappingURL=trace.js.map