blob: 70b286bc25ab010acadf4db92ac0680e061bce2e [file] [log] [blame]
// Copyright 2021 The Pigweed Authors
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#pragma once
#include "pw_assert/assert.h"
#include "pw_sync/interrupt_spin_lock.h"
#include "pw_sync/yield_core.h"
namespace pw::sync {
constexpr InterruptSpinLock::InterruptSpinLock() : native_type_() {}
inline void InterruptSpinLock::lock() { PW_ASSERT(try_lock()); }
inline bool InterruptSpinLock::try_lock() {
// TODO(b/235352722): Use the pw_interrupt API here to disable interrupts.
return !native_type_.test_and_set(std::memory_order_acquire);
inline void InterruptSpinLock::unlock() {
inline InterruptSpinLock::native_handle_type
InterruptSpinLock::native_handle() {
return native_type_;
} // namespace pw::sync