void InspectorTimelineAgent::internalStart(const int* maxCallStackDepth)
{
if (m_enabled)
return;
if (maxCallStackDepth && *maxCallStackDepth > 0)
m_maxCallStackDepth = *maxCallStackDepth;
else
m_maxCallStackDepth = 5;
m_instrumentingAgents.setInspectorTimelineAgent(this);
if (m_scriptDebugServer)
m_scriptDebugServer->addListener(this);
m_enabled = true;
// FIXME: Abstract away platform-specific code once https://bugs.webkit.org/show_bug.cgi?id=142748 is fixed.
#if PLATFORM(COCOA)
m_frameStartObserver = RunLoopObserver::create(0, [this]() {
if (!m_enabled || m_scriptDebugServer->isPaused())
return;
if (!m_runLoopNestingLevel)
pushCurrentRecord(InspectorObject::create(), TimelineRecordType::RenderingFrame, false, nullptr);
m_runLoopNestingLevel++;
});
m_frameStopObserver = RunLoopObserver::create(frameStopRunLoopOrder, [this]() {
if (!m_enabled || m_scriptDebugServer->isPaused())
return;
ASSERT(m_runLoopNestingLevel > 0);
m_runLoopNestingLevel--;
if (m_runLoopNestingLevel)
return;
if (m_startedComposite)
didComposite();
didCompleteCurrentRecord(TimelineRecordType::RenderingFrame);
});
m_frameStartObserver->schedule(currentRunLoop(), kCFRunLoopEntry | kCFRunLoopAfterWaiting);
m_frameStopObserver->schedule(currentRunLoop(), kCFRunLoopExit | kCFRunLoopBeforeWaiting);
// Create a runloop record and increment the runloop nesting level, to capture the current turn of the main runloop
// (which is the outer runloop if recording started while paused in the debugger).
pushCurrentRecord(InspectorObject::create(), TimelineRecordType::RenderingFrame, false, nullptr);
m_runLoopNestingLevel = 1;
#endif
m_frontendDispatcher->recordingStarted(timestamp());
}
void LayerFlushScheduler::schedule()
{
if (m_isSuspended)
return;
m_runLoopObserver->schedule(currentRunLoop());
}
