blob: d2d888930ccafdda241e6f181cd0c63efdc7ea68 [file] [log] [blame]
// Copyright 2020 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_sync/interrupt_spin_lock.h"
namespace pw::sync {
constexpr InterruptSpinLock::InterruptSpinLock()
: native_type_{.state = backend::NativeInterruptSpinLock::State::kUnlocked,
.saved_interrupt_mask = 0,
.saved_preemption_threshold = 0} {}
inline InterruptSpinLock::native_handle_type
InterruptSpinLock::native_handle() {
return native_type_;
inline bool InterruptSpinLock::try_lock() {
// This backend does not support SMP and on a uniprocesor we cannot actually
// fail to acquire the lock. Recursive locking is already detected by lock().
return true;
} // namespace pw::sync