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-rw-r--r--Source/WebCore/inspector/InspectorHeapProfilerAgent.cpp233
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diff --git a/Source/WebCore/inspector/InspectorHeapProfilerAgent.cpp b/Source/WebCore/inspector/InspectorHeapProfilerAgent.cpp
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--- a/Source/WebCore/inspector/InspectorHeapProfilerAgent.cpp
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-/*
- * Copyright (C) 2013 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "InspectorHeapProfilerAgent.h"
-
-#if ENABLE(INSPECTOR)
-
-#include "CommandLineAPIHost.h"
-#include "InstrumentingAgents.h"
-#include "PageInjectedScriptManager.h"
-#include "ScriptProfiler.h"
-#include <inspector/InjectedScript.h>
-
-using namespace Inspector;
-
-namespace WebCore {
-
-static const char* const UserInitiatedProfileNameHeap = "org.webkit.profiles.user-initiated";
-
-InspectorHeapProfilerAgent::InspectorHeapProfilerAgent(InstrumentingAgents* instrumentingAgents, PageInjectedScriptManager* injectedScriptManager)
- : InspectorAgentBase(ASCIILiteral("HeapProfiler"), instrumentingAgents)
- , m_injectedScriptManager(injectedScriptManager)
- , m_nextUserInitiatedHeapSnapshotNumber(1)
- , m_profileHeadersRequested(false)
-{
- m_instrumentingAgents->setInspectorHeapProfilerAgent(this);
-}
-
-InspectorHeapProfilerAgent::~InspectorHeapProfilerAgent()
-{
- m_instrumentingAgents->setInspectorHeapProfilerAgent(nullptr);
-}
-
-void InspectorHeapProfilerAgent::resetState()
-{
- m_snapshots.clear();
- m_nextUserInitiatedHeapSnapshotNumber = 1;
- resetFrontendProfiles();
-
- if (CommandLineAPIHost* commandLineAPIHost = m_injectedScriptManager->commandLineAPIHost())
- commandLineAPIHost->clearInspectedObjects();
-}
-
-void InspectorHeapProfilerAgent::resetFrontendProfiles()
-{
- if (!m_frontendDispatcher)
- return;
- if (!m_profileHeadersRequested)
- return;
- if (m_snapshots.isEmpty())
- m_frontendDispatcher->resetProfiles();
-}
-
-void InspectorHeapProfilerAgent::didCreateFrontendAndBackend(Inspector::InspectorFrontendChannel* frontendChannel, InspectorBackendDispatcher* backendDispatcher)
-{
- m_frontendDispatcher = std::make_unique<InspectorHeapProfilerFrontendDispatcher>(frontendChannel);
- m_backendDispatcher = InspectorHeapProfilerBackendDispatcher::create(backendDispatcher, this);
-}
-
-void InspectorHeapProfilerAgent::willDestroyFrontendAndBackend(InspectorDisconnectReason)
-{
- m_frontendDispatcher = nullptr;
- m_backendDispatcher.clear();
-
- m_profileHeadersRequested = false;
-}
-
-void InspectorHeapProfilerAgent::collectGarbage(WebCore::ErrorString*)
-{
- ScriptProfiler::collectGarbage();
-}
-
-PassRefPtr<Inspector::TypeBuilder::HeapProfiler::ProfileHeader> InspectorHeapProfilerAgent::createSnapshotHeader(const ScriptHeapSnapshot& snapshot)
-{
- RefPtr<Inspector::TypeBuilder::HeapProfiler::ProfileHeader> header = Inspector::TypeBuilder::HeapProfiler::ProfileHeader::create()
- .setUid(snapshot.uid())
- .setTitle(snapshot.title());
- header->setMaxJSObjectId(snapshot.maxSnapshotJSObjectId());
- return header.release();
-}
-
-void InspectorHeapProfilerAgent::hasHeapProfiler(ErrorString*, bool* result)
-{
- *result = ScriptProfiler::hasHeapProfiler();
-}
-
-void InspectorHeapProfilerAgent::getProfileHeaders(ErrorString*, RefPtr<Inspector::TypeBuilder::Array<Inspector::TypeBuilder::HeapProfiler::ProfileHeader>>& headers)
-{
- m_profileHeadersRequested = true;
- headers = Inspector::TypeBuilder::Array<Inspector::TypeBuilder::HeapProfiler::ProfileHeader>::create();
-
- IdToHeapSnapshotMap::iterator snapshotsEnd = m_snapshots.end();
- for (IdToHeapSnapshotMap::iterator it = m_snapshots.begin(); it != snapshotsEnd; ++it)
- headers->addItem(createSnapshotHeader(*it->value));
-}
-
-void InspectorHeapProfilerAgent::getHeapSnapshot(ErrorString* errorString, int rawUid)
-{
- class OutputStream : public ScriptHeapSnapshot::OutputStream {
- public:
- OutputStream(InspectorHeapProfilerFrontendDispatcher* frontend, unsigned uid)
- : m_frontendDispatcher(frontend), m_uid(uid) { }
- void Write(const String& chunk) override { m_frontendDispatcher->addHeapSnapshotChunk(m_uid, chunk); }
- void Close() override { m_frontendDispatcher->finishHeapSnapshot(m_uid); }
- private:
- InspectorHeapProfilerFrontendDispatcher* m_frontendDispatcher;
- int m_uid;
- };
-
- unsigned uid = static_cast<unsigned>(rawUid);
- IdToHeapSnapshotMap::iterator it = m_snapshots.find(uid);
- if (it == m_snapshots.end()) {
- *errorString = "Profile wasn't found";
- return;
- }
- RefPtr<ScriptHeapSnapshot> snapshot = it->value;
- if (m_frontendDispatcher) {
- OutputStream stream(m_frontendDispatcher.get(), uid);
- snapshot->writeJSON(&stream);
- }
-}
-
-void InspectorHeapProfilerAgent::removeProfile(ErrorString*, int rawUid)
-{
- unsigned uid = static_cast<unsigned>(rawUid);
- if (m_snapshots.contains(uid))
- m_snapshots.remove(uid);
-}
-
-void InspectorHeapProfilerAgent::takeHeapSnapshot(ErrorString*, const bool* reportProgress)
-{
- class HeapSnapshotProgress: public ScriptProfiler::HeapSnapshotProgress {
- public:
- explicit HeapSnapshotProgress(InspectorHeapProfilerFrontendDispatcher* frontend)
- : m_frontendDispatcher(frontend) { }
- void Start(int totalWork) override
- {
- m_totalWork = totalWork;
- }
- void Worked(int workDone) override
- {
- if (m_frontendDispatcher)
- m_frontendDispatcher->reportHeapSnapshotProgress(workDone, m_totalWork);
- }
- void Done() override { }
- bool isCanceled() { return false; }
- private:
- InspectorHeapProfilerFrontendDispatcher* m_frontendDispatcher;
- int m_totalWork;
- };
-
- String title = makeString(UserInitiatedProfileNameHeap, '.', String::number(m_nextUserInitiatedHeapSnapshotNumber));
- ++m_nextUserInitiatedHeapSnapshotNumber;
-
- HeapSnapshotProgress progress(reportProgress && *reportProgress ? m_frontendDispatcher.get() : nullptr);
- RefPtr<ScriptHeapSnapshot> snapshot = ScriptProfiler::takeHeapSnapshot(title, &progress);
- if (snapshot) {
- m_snapshots.add(snapshot->uid(), snapshot);
- if (m_frontendDispatcher)
- m_frontendDispatcher->addProfileHeader(createSnapshotHeader(*snapshot));
- }
-}
-
-void InspectorHeapProfilerAgent::getObjectByHeapObjectId(ErrorString* error, const String& heapSnapshotObjectId, const String* objectGroup, RefPtr<Inspector::TypeBuilder::Runtime::RemoteObject>& result)
-{
- bool ok;
- unsigned id = heapSnapshotObjectId.toUInt(&ok);
- if (!ok) {
- *error = "Invalid heap snapshot object id";
- return;
- }
- Deprecated::ScriptObject heapObject = ScriptProfiler::objectByHeapObjectId(id);
- if (heapObject.hasNoValue()) {
- *error = "Object is not available";
- return;
- }
- InjectedScript injectedScript = m_injectedScriptManager->injectedScriptFor(heapObject.scriptState());
- if (injectedScript.hasNoValue()) {
- *error = "Object is not available. Inspected context is gone";
- return;
- }
- result = injectedScript.wrapObject(heapObject, objectGroup ? *objectGroup : "");
- if (!result)
- *error = "Failed to wrap object";
-}
-
-void InspectorHeapProfilerAgent::getHeapObjectId(ErrorString* errorString, const String& objectId, String* heapSnapshotObjectId)
-{
- InjectedScript injectedScript = m_injectedScriptManager->injectedScriptForObjectId(objectId);
- if (injectedScript.hasNoValue()) {
- *errorString = "Inspected context has gone";
- return;
- }
- Deprecated::ScriptValue value = injectedScript.findObjectById(objectId);
- if (value.hasNoValue() || value.isUndefined()) {
- *errorString = "Object with given id not found";
- return;
- }
- unsigned id = ScriptProfiler::getHeapObjectId(value);
- *heapSnapshotObjectId = String::number(id);
-}
-
-} // namespace WebCore
-
-#endif // ENABLE(INSPECTOR)