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Bug 814704 - Move the creation of a js object from combinedStacks into

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a static function. r=vladan.
This commit is contained in:
Rafael Ávila de Espíndola 2012-11-27 08:52:25 -05:00
parent 8ed79688df
commit 18a701927e
1 changed files with 66 additions and 64 deletions
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130
toolkit/components/telemetry/Telemetry.cpp
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@ -106,6 +106,9 @@ private:
std::vector<Stack> mStacks;
};
static JSObject *
CreateJSStackObject(JSContext *cx, const CombinedStacks &stacks);
size_t
CombinedStacks::GetModuleCount() const {
return mModules.size();
@ -177,11 +180,8 @@ class HangReports {
public:
size_t SizeOfExcludingThis() const;
void AddHang(const Telemetry::ProcessedStack& aStack, uint32_t aDuration);
size_t GetStackCount() const;
const CombinedStacks::Stack& GetStack(unsigned aIndex) const;
uint32_t GetDuration(unsigned aIndex) const;
size_t GetModuleCount() const;
const Telemetry::ProcessedStack::Module& GetModule(unsigned aIndex) const;
const CombinedStacks& GetStacks() const;
private:
CombinedStacks mStacks;
std::vector<uint32_t> mDurations;
@ -203,14 +203,9 @@ HangReports::SizeOfExcludingThis() const {
return n;
}
size_t
HangReports::GetModuleCount() const {
return mStacks.GetModuleCount();
}
const Telemetry::ProcessedStack::Module&
HangReports::GetModule(unsigned aIndex) const {
return mStacks.GetModule(aIndex);
const CombinedStacks&
HangReports::GetStacks() const {
return mStacks;
}
uint32_t
@ -218,17 +213,6 @@ HangReports::GetDuration(unsigned aIndex) const {
return mDurations[aIndex];
}
const CombinedStacks::Stack&
HangReports::GetStack(unsigned aIndex) const {
return mStacks.GetStack(aIndex);
}
size_t
HangReports::GetStackCount() const {
MOZ_ASSERT(mDurations.size() == mStacks.GetStackCount());
return mStacks.GetStackCount();
}
class TelemetryImpl MOZ_FINAL : public nsITelemetry
{
NS_DECL_ISUPPORTS
@ -1222,37 +1206,67 @@ TelemetryImpl::GetChromeHangs(JSContext *cx, jsval *ret)
{
MutexAutoLock hangReportMutex(mHangReportsMutex);
JSObject *fullReportObj = JS_NewObject(cx, nullptr, nullptr, nullptr);
const CombinedStacks& stacks = mHangReports.GetStacks();
JSObject *fullReportObj = CreateJSStackObject(cx, stacks);
if (!fullReportObj) {
return NS_ERROR_FAILURE;
}
*ret = OBJECT_TO_JSVAL(fullReportObj);
JSObject *moduleArray = JS_NewArrayObject(cx, 0, nullptr);
if (!moduleArray) {
JSObject *durationArray = JS_NewArrayObject(cx, 0, nullptr);
if (!durationArray) {
return NS_ERROR_FAILURE;
}
JSBool ok = JS_DefineProperty(cx, fullReportObj, "memoryMap",
OBJECT_TO_JSVAL(moduleArray),
JSBool ok = JS_DefineProperty(cx, fullReportObj, "durations",
OBJECT_TO_JSVAL(durationArray),
NULL, NULL, JSPROP_ENUMERATE);
if (!ok) {
return NS_ERROR_FAILURE;
}
const uint32_t moduleCount = mHangReports.GetModuleCount();
const size_t length = stacks.GetStackCount();
for (size_t i = 0; i < length; ++i) {
jsval duration = INT_TO_JSVAL(mHangReports.GetDuration(i));
if (!JS_SetElement(cx, durationArray, i, &duration)) {
return NS_ERROR_FAILURE;
}
}
return NS_OK;
}
static JSObject *
CreateJSStackObject(JSContext *cx, const CombinedStacks &stacks) {
JSObject *ret = JS_NewObject(cx, nullptr, nullptr, nullptr);
if (!ret) {
return nullptr;
}
JSObject *moduleArray = JS_NewArrayObject(cx, 0, nullptr);
if (!moduleArray) {
return nullptr;
}
JSBool ok = JS_DefineProperty(cx, ret, "memoryMap",
OBJECT_TO_JSVAL(moduleArray),
NULL, NULL, JSPROP_ENUMERATE);
if (!ok) {
return nullptr;
}
const size_t moduleCount = stacks.GetModuleCount();
for (size_t moduleIndex = 0; moduleIndex < moduleCount; ++moduleIndex) {
// Current module
const Telemetry::ProcessedStack::Module& module =
mHangReports.GetModule(moduleIndex);
stacks.GetModule(moduleIndex);
JSObject *moduleInfoArray = JS_NewArrayObject(cx, 0, nullptr);
if (!moduleInfoArray) {
return NS_ERROR_FAILURE;
return nullptr;
}
jsval val = OBJECT_TO_JSVAL(moduleInfoArray);
if (!JS_SetElement(cx, moduleArray, moduleIndex, &val)) {
return NS_ERROR_FAILURE;
return nullptr;
}
unsigned index = 0;
@ -1260,102 +1274,90 @@ TelemetryImpl::GetChromeHangs(JSContext *cx, jsval *ret)
// Module name
JSString *str = JS_NewStringCopyZ(cx, module.mName.c_str());
if (!str) {
return NS_ERROR_FAILURE;
return nullptr;
}
val = STRING_TO_JSVAL(str);
if (!JS_SetElement(cx, moduleInfoArray, index++, &val)) {
return NS_ERROR_FAILURE;
return nullptr;
}
// "PDB Age" identifier
val = INT_TO_JSVAL(module.mPdbAge);
if (!JS_SetElement(cx, moduleInfoArray, index++, &val)) {
return NS_ERROR_FAILURE;
return nullptr;
}
// "PDB Signature" GUID
str = JS_NewStringCopyZ(cx, module.mPdbSignature.c_str());
if (!str) {
return NS_ERROR_FAILURE;
return nullptr;
}
val = STRING_TO_JSVAL(str);
if (!JS_SetElement(cx, moduleInfoArray, index++, &val)) {
return NS_ERROR_FAILURE;
return nullptr;
}
// Name of associated PDB file
str = JS_NewStringCopyZ(cx, module.mPdbName.c_str());
if (!str) {
return NS_ERROR_FAILURE;
return nullptr;
}
val = STRING_TO_JSVAL(str);
if (!JS_SetElement(cx, moduleInfoArray, index++, &val)) {
return NS_ERROR_FAILURE;
return nullptr;
}
}
JSObject *reportArray = JS_NewArrayObject(cx, 0, nullptr);
if (!reportArray) {
return NS_ERROR_FAILURE;
return nullptr;
}
ok = JS_DefineProperty(cx, fullReportObj, "stacks",
ok = JS_DefineProperty(cx, ret, "stacks",
OBJECT_TO_JSVAL(reportArray),
NULL, NULL, JSPROP_ENUMERATE);
if (!ok) {
return NS_ERROR_FAILURE;
return nullptr;
}
JSObject *durationArray = JS_NewArrayObject(cx, 0, nullptr);
ok = JS_DefineProperty(cx, fullReportObj, "durations",
OBJECT_TO_JSVAL(durationArray),
NULL, NULL, JSPROP_ENUMERATE);
if (!ok) {
return NS_ERROR_FAILURE;
}
for (size_t i = 0, n = mHangReports.GetStackCount(); i < n; ++i) {
jsval duration = INT_TO_JSVAL(mHangReports.GetDuration(i));
if (!JS_SetElement(cx, durationArray, i, &duration)) {
return NS_ERROR_FAILURE;
}
const size_t length = stacks.GetStackCount();
for (size_t i = 0; i < length; ++i) {
// Represent call stack PCs as (module index, offset) pairs.
JSObject *pcArray = JS_NewArrayObject(cx, 0, nullptr);
if (!pcArray) {
return NS_ERROR_FAILURE;
return nullptr;
}
jsval pcArrayVal = OBJECT_TO_JSVAL(pcArray);
if (!JS_SetElement(cx, reportArray, i, &pcArrayVal)) {
return NS_ERROR_FAILURE;
return nullptr;
}
const CombinedStacks::Stack& stack = mHangReports.GetStack(i);
const CombinedStacks::Stack& stack = stacks.GetStack(i);
const uint32_t pcCount = stack.size();
for (size_t pcIndex = 0; pcIndex < pcCount; ++pcIndex) {
const Telemetry::ProcessedStack::Frame& frame = stack[pcIndex];
JSObject *framePair = JS_NewArrayObject(cx, 0, nullptr);
if (!framePair) {
return NS_ERROR_FAILURE;
return nullptr;
}
int modIndex = (std::numeric_limits<uint16_t>::max() == frame.mModIndex) ?
-1 : frame.mModIndex;
jsval modIndexVal = INT_TO_JSVAL(modIndex);
if (!JS_SetElement(cx, framePair, 0, &modIndexVal)) {
return NS_ERROR_FAILURE;
return nullptr;
}
jsval mOffsetVal = INT_TO_JSVAL(frame.mOffset);
if (!JS_SetElement(cx, framePair, 1, &mOffsetVal)) {
return NS_ERROR_FAILURE;
return nullptr;
}
jsval framePairVal = OBJECT_TO_JSVAL(framePair);
if (!JS_SetElement(cx, pcArray, pcIndex, &framePairVal)) {
return NS_ERROR_FAILURE;
return nullptr;
}
}
}
return NS_OK;
return ret;
}
NS_IMETHODIMP