// Copyright 2023 the V8 project authors. All rights reserved.

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file.

#include "src/base/platform/platform.h"

namespace v8 {

namespace base {

namespace {

// A pointer to current thread's stack beginning.

thread_local void* thread_stack_start = nullptr;

} // namespace

// static

Stack::StackSlot Stack::GetStackStartUnchecked() {

if (!thread_stack_start) {

thread_stack_start = ObtainCurrentThreadStackStart();

}

return thread_stack_start;

}

// static

Stack::StackSlot Stack::GetStackStart() { return GetStackStartUnchecked(); }

// static

int OS::GetCurrentThreadId() {

static thread_local int id = GetCurrentThreadIdInternal();

return id;

}

} // namespace base

} // namespace v8