diff options
Diffstat (limited to 'runtime/js/telemetry.js')
| -rw-r--r-- | runtime/js/telemetry.js | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/runtime/js/telemetry.js b/runtime/js/telemetry.js index e9eb51f7c..195839fb1 100644 --- a/runtime/js/telemetry.js +++ b/runtime/js/telemetry.js @@ -22,11 +22,14 @@ const { ReflectApply, SymbolFor, Error, + NumberPrototypeToString, + StringPrototypePadStart, } = primordials; const { AsyncVariable, setAsyncContext } = core; const CURRENT = new AsyncVariable(); let TRACING_ENABLED = false; +let DETERMINISTIC = false; const SPAN_ID_BYTES = 8; const TRACE_ID_BYTES = 16; @@ -45,7 +48,19 @@ const hexSliceLookupTable = (function () { return table; })(); +let counter = 1; + +const INVALID_SPAN_ID = "0000000000000000"; +const INVALID_TRACE_ID = "00000000000000000000000000000000"; + function generateId(bytes) { + if (DETERMINISTIC) { + return StringPrototypePadStart( + NumberPrototypeToString(counter++, 16), + bytes * 2, + "0", + ); + } let out = ""; for (let i = 0; i < bytes / 4; i += 1) { const r32 = (MathRandom() * 2 ** 32) >>> 0; @@ -112,8 +127,6 @@ function submit(span) { const now = () => (performance.timeOrigin + performance.now()) / 1000; -const INVALID_SPAN_ID = "0000000000000000"; -const INVALID_TRACE_ID = "00000000000000000000000000000000"; const NO_ASYNC_CONTEXT = {}; class Span { @@ -362,9 +375,10 @@ const otelConsoleConfig = { export function bootstrap(config) { if (config.length === 0) return; - const { 0: consoleConfig } = config; + const { 0: consoleConfig, 1: deterministic } = config; TRACING_ENABLED = true; + DETERMINISTIC = deterministic === 1; switch (consoleConfig) { case otelConsoleConfig.capture: |