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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
const kPrefName = "logging.prof";
const kPrefValue = 5;
add_task(async () => {
Services.prefs.setIntPref(kPrefName, kPrefValue);
registerCleanupFunction(() => {
Services.prefs.clearUserPref(kPrefName);
});
const entries = 10000;
const interval = 1;
const threads = ["GeckoMain"];
const features = ["nostacksampling"];
await Services.profiler.StartProfiler(entries, interval, features, threads);
// We need to pause the profiler here, otherwise we get crashes.
// This seems to be a combination of json streaming + markers from Rust.
// See Bug 1920704 for more details.
await Services.profiler.Pause();
const profileData = await Services.profiler.getProfileDataAsync();
await Services.profiler.StopProfiler();
const { markers, stringTable } = profileData.threads[0];
const stringIndexForLogMessages = stringTable.indexOf("LogMessages");
Assert.greaterOrEqual(
stringIndexForLogMessages,
0,
"A string index for the string LogMessages have been found."
);
// At least one log for the profiler json streaming operation should exist.
// See https://searchfox.org/mozilla-central/rev/445a6e86233c733c5557ef44e1d33444adaddefc/mozglue/baseprofiler/core/platform.cpp#2015
const logMessageMarkers = markers.data.filter(
tuple => tuple[markers.schema.name] === stringIndexForLogMessages
);
Assert.greaterOrEqual(
logMessageMarkers.length,
0,
"At least one log message have been found."
);
});
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