JSBool
JSHistogram_Snapshot(JSContext *cx, unsigned argc, jsval *vp)
{
JSObject *obj = JS_THIS_OBJECT(cx, vp);
if (!obj) {
return JS_FALSE;
}
Histogram *h = static_cast<Histogram*>(JS_GetPrivate(obj));
JSObject *snapshot = JS_NewObject(cx, nullptr, nullptr, nullptr);
if (!snapshot)
return JS_FALSE;
JS::AutoObjectRooter sroot(cx, snapshot);
switch (ReflectHistogramSnapshot(cx, snapshot, h)) {
case REFLECT_FAILURE:
return JS_FALSE;
case REFLECT_CORRUPT:
JS_ReportError(cx, "Histogram is corrupt");
return JS_FALSE;
case REFLECT_OK:
JS_SET_RVAL(cx, vp, OBJECT_TO_JSVAL(snapshot));
return JS_TRUE;
default:
MOZ_NOT_REACHED("unhandled reflection status");
return JS_FALSE;
}
}
NS_IMETHODIMP
TelemetryImpl::GetHistogramSnapshots(JSContext *cx, jsval *ret)
{
JSObject *root_obj = JS_NewObject(cx, NULL, NULL, NULL);
if (!root_obj)
return NS_ERROR_FAILURE;
*ret = OBJECT_TO_JSVAL(root_obj);
StatisticsRecorder::Histograms h;
StatisticsRecorder::GetHistograms(&h);
for (StatisticsRecorder::Histograms::iterator it = h.begin(); it != h.end();++it) {
Histogram *h = *it;
JSObject *hobj = JS_NewObject(cx, NULL, NULL, NULL);
if (!(hobj
&& JS_DefineProperty(cx, root_obj, h->histogram_name().c_str(),
OBJECT_TO_JSVAL(hobj), NULL, NULL, JSPROP_ENUMERATE)
&& ReflectHistogramSnapshot(cx, hobj, h))) {
return NS_ERROR_FAILURE;
}
}
MutexAutoLock hashMutex(mHashMutex);
// Add info about slow SQL queries on the main thread
if (!AddSlowSQLInfo(cx, root_obj, true))
return NS_ERROR_FAILURE;
// Add info about slow SQL queries on other threads
if (!AddSlowSQLInfo(cx, root_obj, false))
return NS_ERROR_FAILURE;
return NS_OK;
}
bool
TelemetryImpl::AddonHistogramReflector(AddonHistogramEntryType *entry,
JSContext *cx, JSObject *obj)
{
// Never even accessed the histogram.
if (!entry->mData.h) {
return true;
}
JSObject *snapshot = JS_NewObject(cx, NULL, NULL, NULL);
js::AutoObjectRooter r(cx, snapshot);
switch (ReflectHistogramSnapshot(cx, snapshot, entry->mData.h)) {
case REFLECT_FAILURE:
case REFLECT_CORRUPT:
return false;
case REFLECT_OK:
const nsACString &histogramName = entry->GetKey();
if (!JS_DefineProperty(cx, obj,
PromiseFlatCString(histogramName).get(),
OBJECT_TO_JSVAL(snapshot), NULL, NULL,
JSPROP_ENUMERATE)) {
return false;
}
break;
}
return true;
}
NS_IMETHODIMP
TelemetryImpl::GetHistogramSnapshots(JSContext *cx, jsval *ret)
{
JSObject *root_obj = JS_NewObject(cx, NULL, NULL, NULL);
if (!root_obj)
return NS_ERROR_FAILURE;
*ret = OBJECT_TO_JSVAL(root_obj);
// Ensure that all the HISTOGRAM_FLAG histograms have been created, so
// that their values are snapshotted.
for (size_t i = 0; i < Telemetry::HistogramCount; ++i) {
if (gHistograms[i].histogramType == nsITelemetry::HISTOGRAM_FLAG) {
Histogram *h;
DebugOnly<nsresult> rv = GetHistogramByEnumId(Telemetry::ID(i), &h);
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
};
StatisticsRecorder::Histograms hs;
StatisticsRecorder::GetHistograms(&hs);
// We identify corrupt histograms first, rather than interspersing it
// in the loop below, to ensure that our corruption statistics don't
// depend on histogram enumeration order.
//
// Of course, we hope that all of these corruption-statistics
// histograms are not themselves corrupt...
IdentifyCorruptHistograms(hs);
// OK, now we can actually reflect things.
for (HistogramIterator it = hs.begin(); it != hs.end(); ++it) {
Histogram *h = *it;
if (!ShouldReflectHistogram(h) || IsEmpty(h)) {
continue;
}
JSObject *hobj = JS_NewObject(cx, NULL, NULL, NULL);
if (!hobj) {
return NS_ERROR_FAILURE;
}
JS::AutoObjectRooter root(cx, hobj);
switch (ReflectHistogramSnapshot(cx, hobj, h)) {
case REFLECT_CORRUPT:
// We can still hit this case even if ShouldReflectHistograms
// returns true. The histogram lies outside of our control
// somehow; just skip it.
continue;
case REFLECT_FAILURE:
return NS_ERROR_FAILURE;
case REFLECT_OK:
if (!JS_DefineProperty(cx, root_obj, h->histogram_name().c_str(),
OBJECT_TO_JSVAL(hobj), NULL, NULL, JSPROP_ENUMERATE)) {
return NS_ERROR_FAILURE;
}
}
}
return NS_OK;
}
JSBool
JSHistogram_Snapshot(JSContext *cx, uintN argc, jsval *vp)
{
JSObject *obj = JS_THIS_OBJECT(cx, vp);
Histogram *h = static_cast<Histogram*>(JS_GetPrivate(cx, obj));
JSObject *snapshot = JS_NewObject(cx, NULL, NULL, NULL);
if (!snapshot)
return JS_FALSE;
JS_SET_RVAL(cx, vp, OBJECT_TO_JSVAL(snapshot));
return ReflectHistogramSnapshot(cx, snapshot, h);
}
NS_IMETHODIMP
TelemetryImpl::GetHistogramSnapshots(JSContext *cx, jsval *ret)
{
JSObject *root_obj = JS_NewObject(cx, NULL, NULL, NULL);
if (!root_obj)
return NS_ERROR_FAILURE;
*ret = OBJECT_TO_JSVAL(root_obj);
StatisticsRecorder::Histograms hs;
StatisticsRecorder::GetHistograms(&hs);
// We identify corrupt histograms first, rather than interspersing it
// in the loop below, to ensure that our corruption statistics don't
// depend on histogram enumeration order.
//
// Of course, we hope that all of these corruption-statistics
// histograms are not themselves corrupt...
IdentifyCorruptHistograms(hs);
// OK, now we can actually reflect things.
for (HistogramIterator it = hs.begin(); it != hs.end(); ++it) {
Histogram *h = *it;
if (!ShouldReflectHistogram(h)) {
continue;
}
JSObject *hobj = JS_NewObject(cx, NULL, NULL, NULL);
if (!hobj) {
return NS_ERROR_FAILURE;
}
switch (ReflectHistogramSnapshot(cx, hobj, h)) {
case REFLECT_CORRUPT:
// We can still hit this case even if ShouldReflectHistograms
// returns true. The histogram lies outside of our control
// somehow; just skip it.
continue;
case REFLECT_FAILURE:
return NS_ERROR_FAILURE;
case REFLECT_OK:
if (!JS_DefineProperty(cx, root_obj, h->histogram_name().c_str(),
OBJECT_TO_JSVAL(hobj), NULL, NULL, JSPROP_ENUMERATE)) {
return NS_ERROR_FAILURE;
}
}
}
return NS_OK;
}
bool
TelemetryImpl::AddonHistogramReflector(AddonHistogramEntryType *entry,
JSContext *cx, JSObject *obj)
{
AddonHistogramInfo &info = entry->mData;
// Never even accessed the histogram.
if (!info.h) {
// Have to force creation of HISTOGRAM_FLAG histograms.
if (info.histogramType != nsITelemetry::HISTOGRAM_FLAG)
return true;
if (!CreateHistogramForAddon(entry->GetKey(), info)) {
return false;
}
}
if (IsEmpty(info.h)) {
return true;
}
JSObject *snapshot = JS_NewObject(cx, NULL, NULL, NULL);
if (!snapshot) {
// Just consider this to be skippable.
return true;
}
JS::AutoObjectRooter r(cx, snapshot);
switch (ReflectHistogramSnapshot(cx, snapshot, info.h)) {
case REFLECT_FAILURE:
case REFLECT_CORRUPT:
return false;
case REFLECT_OK:
const nsACString &histogramName = entry->GetKey();
if (!JS_DefineProperty(cx, obj,
PromiseFlatCString(histogramName).get(),
OBJECT_TO_JSVAL(snapshot), NULL, NULL,
JSPROP_ENUMERATE)) {
return false;
}
break;
}
return true;
}
NS_IMETHODIMP
TelemetryImpl::GetHistogramSnapshots(JSContext *cx, jsval *ret)
{
JSObject *root_obj = JS_NewObject(cx, NULL, NULL, NULL);
if (!root_obj)
return NS_ERROR_FAILURE;
*ret = OBJECT_TO_JSVAL(root_obj);
StatisticsRecorder::Histograms h;
StatisticsRecorder::GetHistograms(&h);
for (StatisticsRecorder::Histograms::iterator it = h.begin(); it != h.end();++it) {
Histogram *h = *it;
JSObject *hobj = JS_NewObject(cx, NULL, NULL, NULL);
if (!(hobj
&& JS_DefineProperty(cx, root_obj, h->histogram_name().c_str(),
OBJECT_TO_JSVAL(hobj), NULL, NULL, JSPROP_ENUMERATE)
&& ReflectHistogramSnapshot(cx, hobj, h))) {
return NS_ERROR_FAILURE;
}
}
return NS_OK;
}