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diff --git a/tools/profiler/public/ProfilerThreadState.h b/tools/profiler/public/ProfilerThreadState.h
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+++ b/tools/profiler/public/ProfilerThreadState.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// This header contains functions that give information about the Profiler state
+// with regards to the current thread.
+
+#ifndef ProfilerThreadState_h
+#define ProfilerThreadState_h
+
+#include "mozilla/ProfilerState.h"
+#include "mozilla/ProfilerThreadRegistration.h"
+#include "mozilla/ProfilerThreadRegistry.h"
+#include "mozilla/ProfilerThreadSleep.h"
+
+// During profiling, if the current thread is registered, return true
+// (regardless of whether it is actively being profiled).
+// (Same caveats and recommended usage as profiler_is_active().)
+[[nodiscard]] inline bool profiler_is_active_and_thread_is_registered() {
+  return profiler_is_active() &&
+         mozilla::profiler::ThreadRegistration::IsRegistered();
+}
+
+// Is the profiler active and unpaused, and is the current thread being
+// profiled for any of the given features? (Same caveats and recommended usage
+// as profiler_is_active().)
+[[nodiscard]] inline bool profiler_thread_is_being_profiled(
+    ThreadProfilingFeatures aThreadProfilingFeatures) {
+  return profiler_is_active_and_unpaused() &&
+         mozilla::profiler::ThreadRegistration::WithOnThreadRefOr(
+             [aThreadProfilingFeatures](
+                 mozilla::profiler::ThreadRegistration::OnThreadRef aTR) {
+               return DoFeaturesIntersect(
+                   aTR.UnlockedConstReaderAndAtomicRWCRef().ProfilingFeatures(),
+                   aThreadProfilingFeatures);
+             },
+             false);
+}
+
+// Is the profiler active and unpaused, and is the given thread being profiled?
+// (Same caveats and recommended usage as profiler_is_active().)
+// Safe to use with the current thread id, or unspecified ProfilerThreadId (same
+// as current thread id).
+[[nodiscard]] inline bool profiler_thread_is_being_profiled(
+    const ProfilerThreadId& aThreadId,
+    ThreadProfilingFeatures aThreadProfilingFeatures) {
+  if (!profiler_is_active_and_unpaused()) {
+    return false;
+  }
+
+  if (!aThreadId.IsSpecified() || aThreadId == profiler_current_thread_id()) {
+    // For the current thread id, use the ThreadRegistration directly, it is
+    // more efficient.
+    return mozilla::profiler::ThreadRegistration::WithOnThreadRefOr(
+        [aThreadProfilingFeatures](
+            mozilla::profiler::ThreadRegistration::OnThreadRef aTR) {
+          return DoFeaturesIntersect(
+              aTR.UnlockedConstReaderAndAtomicRWCRef().ProfilingFeatures(),
+              aThreadProfilingFeatures);
+        },
+        false);
+  }
+
+  // For other threads, go through the ThreadRegistry.
+  return mozilla::profiler::ThreadRegistry::WithOffThreadRefOr(
+      aThreadId,
+      [aThreadProfilingFeatures](
+          mozilla::profiler::ThreadRegistry::OffThreadRef aTR) {
+        return DoFeaturesIntersect(
+            aTR.UnlockedConstReaderAndAtomicRWCRef().ProfilingFeatures(),
+            aThreadProfilingFeatures);
+      },
+      false);
+}
+
+// Is the current thread registered and sleeping?
+[[nodiscard]] inline bool profiler_thread_is_sleeping() {
+  return profiler_is_active() &&
+         mozilla::profiler::ThreadRegistration::WithOnThreadRefOr(
+             [](mozilla::profiler::ThreadRegistration::OnThreadRef aTR) {
+               return aTR.UnlockedConstReaderAndAtomicRWCRef().IsSleeping();
+             },
+             false);
+}
+
+#ifndef MOZ_GECKO_PROFILER
+
+#  define AUTO_PROFILER_THREAD_WAKE
+
+#else  // !MOZ_GECKO_PROFILER
+
+// Mark a thread as awake within a scope.
+// (See also AUTO_PROFILER_THREAD_SLEEP in mozilla/ProfilerThreadSleep.h)
+#  define AUTO_PROFILER_THREAD_WAKE \
+    mozilla::AutoProfilerThreadWake PROFILER_RAII
+
+namespace mozilla {
+
+// Temporarily wake up the profiling of a thread while servicing events such as
+// Asynchronous Procedure Calls (APCs).
+// (See also AutoProfilerThreadSleep in ProfilerThreadSleep.h)
+class MOZ_RAII AutoProfilerThreadWake {
+ public:
+  explicit AutoProfilerThreadWake()
+      : mIssuedWake(profiler_thread_is_sleeping()) {
+    if (mIssuedWake) {
+      profiler_thread_wake();
+    }
+  }
+
+  ~AutoProfilerThreadWake() {
+    if (mIssuedWake) {
+      MOZ_ASSERT(!profiler_thread_is_sleeping());
+      profiler_thread_sleep();
+    }
+  }
+
+ private:
+  bool mIssuedWake;
+};
+
+}  // namespace mozilla
+
+#endif  // !MOZ_GECKO_PROFILER
+
+#endif  // ProfilerThreadState_h