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Add Component Mount QPL event
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Summary: Add Component Mount QPL event

Reviewed By: Katalune

Differential Revision: D55163293

fbshipit-source-id: ac5a704a9631ed6b4e55df25b00a82af8a02f03d
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@adityasharat @facebook-github-bot
adityasharat authored and facebook-github-bot committed Mar 22, 2024
1 parent 34fc1c2 commit 50779ea
Showing 1 changed file with 84 additions and 85 deletions.
169 changes: 84 additions & 85 deletions litho-rendercore/src/main/java/com/facebook/rendercore/MountState.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ import com.facebook.rendercore.debug.DebugEventAttribute.Bounds
import com.facebook.rendercore.debug.DebugEventAttribute.Description
import com.facebook.rendercore.debug.DebugEventAttribute.HashCode
import com.facebook.rendercore.debug.DebugEventAttribute.Key
import com.facebook.rendercore.debug.DebugEventAttribute.Name
import com.facebook.rendercore.debug.DebugEventAttribute.NumMountableOutputs
import com.facebook.rendercore.debug.DebugEventAttribute.RenderUnitId
import com.facebook.rendercore.debug.DebugEventAttribute.RootHostHashCode
Expand Down Expand Up @@ -512,100 +513,98 @@ constructor(
mountRootItem(renderTreeNode)
return
}
val traceIdentifier = DebugEventDispatcher.generateTraceIdentifier(DebugEvent.RenderUnitMounted)
if (traceIdentifier != null) {
val attributes = HashMap<String, Any?>()
attributes[RenderUnitId] = renderTreeNode.renderUnit.id
attributes[Description] = renderTreeNode.renderUnit.description
attributes[Bounds] = renderTreeNode.bounds
attributes[RootHostHashCode] = _rootHost.hashCode()
attributes[Key] = renderTreeNode.renderUnit.debugKey
DebugEventDispatcher.beginTrace(
traceIdentifier,
DebugEvent.RenderUnitMounted,
checkNotNull(renderTree).renderStateId.toString(),
attributes)
}
val isTracing = tracer.isTracing()
if (isTracing) {
tracer.beginSection("MountItem: ${renderTreeNode.renderUnit.description}")
}

// 1. Resolve the correct host to mount our content to.
val hostTreeNode = checkNotNull(renderTreeNode.parent)
val parentRenderUnit = hostTreeNode.renderUnit
val renderUnit: RenderUnit<Any> = renderTreeNode.renderUnit as RenderUnit<Any>
DebugEventDispatcher.trace(
type = DebugEvent.RenderUnitMounted,
renderStateId = { checkNotNull(renderTree).renderStateId.toString() },
attributesAccumulator = { attributes ->
attributes[RenderUnitId] = renderTreeNode.renderUnit.id
attributes[Name] = renderTreeNode.renderUnit.description
attributes[Bounds] = renderTreeNode.bounds
attributes[RootHostHashCode] = _rootHost.hashCode()
attributes[Key] = renderTreeNode.renderUnit.debugKey
},
) {
val isTracing = tracer.isTracing()
if (isTracing) {
tracer.beginSection("MountItem: ${renderTreeNode.renderUnit.description}")
}

// 2. Ensure render tree node's parent is mounted or throw exception depending on the
// ensure-parent-mounted flag.
if (isTracing) {
tracer.beginSection("MountItem:mount-parent ${parentRenderUnit.description}")
}
maybeEnsureParentIsMounted(hostTreeNode, parentRenderUnit)
if (isTracing) {
tracer.endSection()
}
val mountItem = checkNotNull(idToMountedItemMap[parentRenderUnit.id])
val parentContent = mountItem.content
assertParentContentType(parentContent, renderUnit, parentRenderUnit)
val host = parentContent as Host
// 1. Resolve the correct host to mount our content to.
val hostTreeNode = checkNotNull(renderTreeNode.parent)
val parentRenderUnit = hostTreeNode.renderUnit
val renderUnit: RenderUnit<Any> = renderTreeNode.renderUnit as RenderUnit<Any>

// 3. call the RenderUnit's Mount bindings.
if (isTracing) {
tracer.beginSection("MountItem:acquire-content ${renderUnit.description}")
}
val content = MountItemsPool.acquireMountContent(context, renderUnit.contentAllocator)
if (isTracing) {
tracer.endSection()
}
_mountDelegate?.startNotifyVisibleBoundsChangedSection()
if (isTracing) {
tracer.beginSection("MountItem:mount ${renderTreeNode.renderUnit.description}")
}
val item = MountItem(renderTreeNode, content)
mountRenderUnitToContent(renderTreeNode, renderUnit, content, item.bindData)
// 2. Ensure render tree node's parent is mounted or throw exception depending on the
// ensure-parent-mounted flag.
if (isTracing) {
tracer.beginSection("MountItem:mount-parent ${parentRenderUnit.description}")
}
maybeEnsureParentIsMounted(hostTreeNode, parentRenderUnit)
if (isTracing) {
tracer.endSection()
}
val mountItem = checkNotNull(idToMountedItemMap[parentRenderUnit.id])
val parentContent = mountItem.content
assertParentContentType(parentContent, renderUnit, parentRenderUnit)
val host = parentContent as Host

// 4. Mount the content into the selected host.
mountContentInHost(item, host, renderTreeNode)
if (isTracing) {
tracer.endSection()
tracer.beginSection("MountItem:bind ${renderTreeNode.renderUnit.description}")
}
// 3. call the RenderUnit's Mount bindings.
if (isTracing) {
tracer.beginSection("MountItem:acquire-content ${renderUnit.description}")
}
val content = MountItemsPool.acquireMountContent(context, renderUnit.contentAllocator)
if (isTracing) {
tracer.endSection()
}
_mountDelegate?.startNotifyVisibleBoundsChangedSection()
if (isTracing) {
tracer.beginSection("MountItem:mount ${renderTreeNode.renderUnit.description}")
}
val item = MountItem(renderTreeNode, content)
mountRenderUnitToContent(renderTreeNode, renderUnit, content, item.bindData)

// 5. Call attach binding functions
bindRenderUnitToContent(item)
if (isTracing) {
tracer.endSection()
tracer.beginSection("MountItem:applyBounds ${renderTreeNode.renderUnit.description}")
}
// 4. Mount the content into the selected host.
mountContentInHost(item, host, renderTreeNode)
if (isTracing) {
tracer.endSection()
tracer.beginSection("MountItem:bind ${renderTreeNode.renderUnit.description}")
}

// 6. Apply the bounds to the Mount content now. It's important to do so after bind as calling
// bind might have triggered a layout request within a View.
val changed =
BoundsUtils.applyBoundsToMountContent(
renderTreeNode,
item.content,
true /* force */,
tracer,
)
if (isTracing) {
tracer.endSection()
tracer.beginSection("MountItem:after ${renderTreeNode.renderUnit.description}")
}
// 5. Call attach binding functions
bindRenderUnitToContent(item)
if (isTracing) {
tracer.endSection()
tracer.beginSection("MountItem:applyBounds ${renderTreeNode.renderUnit.description}")
}

// 6. Apply the bounds to the Mount content now. It's important to do so after bind as calling
// bind might have triggered a layout request within a View.
val changed =
BoundsUtils.applyBoundsToMountContent(
renderTreeNode,
item.content,
true /* force */,
tracer,
)
if (isTracing) {
tracer.endSection()
tracer.beginSection("MountItem:after ${renderTreeNode.renderUnit.description}")
}

_mountDelegate?.onBoundsAppliedToItem(
renderTreeNode,
item.content,
changed,
tracer,
)
_mountDelegate?.endNotifyVisibleBoundsChangedSection()
_mountDelegate?.onBoundsAppliedToItem(
renderTreeNode,
item.content,
changed,
tracer,
)
_mountDelegate?.endNotifyVisibleBoundsChangedSection()

if (isTracing) {
tracer.endSection()
tracer.endSection()
if (isTracing) {
tracer.endSection()
tracer.endSection()
}
}
traceIdentifier?.let { DebugEventDispatcher.endTrace(it) }
}

private fun unmountItemRecursively(id: Long) {
Expand Down

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