startPingTimerByLanes() — react Function Reference

Architecture documentation for the startPingTimerByLanes() function in ReactProfilerTimer.js from the react codebase.

Function javascript BabelCompiler Validation calls 1

Entity Profile

BabelCompiler→ Validation→ startPingTimerByLanes() — react Function Reference

Dependency Diagram

graph TD
  3dd6006d_9393_3dfb_5e18_cdd26a35f66b["startPingTimerByLanes()"]
  e054b9c7_41f1_c7f7_97bb_98b6a445e94b["ReactProfilerTimer.js"]
  3dd6006d_9393_3dfb_5e18_cdd26a35f66b -->|defined in| e054b9c7_41f1_c7f7_97bb_98b6a445e94b
  185b9fca_89de_9f5e_3430_21909e9b039c["createTask()"]
  3dd6006d_9393_3dfb_5e18_cdd26a35f66b -->|calls| 185b9fca_89de_9f5e_3430_21909e9b039c
  style 3dd6006d_9393_3dfb_5e18_cdd26a35f66b fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/react-reconciler/src/ReactProfilerTimer.js lines 248–274

export function startPingTimerByLanes(lanes: Lanes): void {
  if (!enableProfilerTimer || !enableComponentPerformanceTrack) {
    return;
  }
  // Mark the update time and clamp anything before it because we don't want
  // to show the event time for pings but we also don't want to clear it
  // because we still need to track if this was a repeat.
  if (isGestureRender(lanes)) {
    if (gestureUpdateTime < 0) {
      gestureClampTime = gestureUpdateTime = now();
      gestureUpdateTask = createTask('Promise Resolved');
      gestureUpdateType = PINGED_UPDATE;
    }
  } else if (includesBlockingLane(lanes)) {
    if (blockingUpdateTime < 0) {
      blockingClampTime = blockingUpdateTime = now();
      blockingUpdateTask = createTask('Promise Resolved');
      blockingUpdateType = PINGED_UPDATE;
    }
  } else if (includesTransitionLane(lanes)) {
    if (transitionUpdateTime < 0) {
      transitionClampTime = transitionUpdateTime = now();
      transitionUpdateTask = createTask('Promise Resolved');
      transitionUpdateType = PINGED_UPDATE;
    }
  }
}