94 lines
3.3 KiB
C++
94 lines
3.3 KiB
C++
// Copyright 2020 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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#include "gtest/gtest.h"
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#include "pw_sync/interrupt_spin_lock.h"
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namespace pw::sync {
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namespace {
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extern "C" {
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// Functions defined in interrupt_spin_lock_facade_test_c.c which call the API
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// from C.
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void pw_sync_InterruptSpinLock_CallLock(
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pw_sync_InterruptSpinLock* interrupt_spin_lock);
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bool pw_sync_InterruptSpinLock_CallTryLock(
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pw_sync_InterruptSpinLock* interrupt_spin_lock);
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void pw_sync_InterruptSpinLock_CallUnlock(
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pw_sync_InterruptSpinLock* interrupt_spin_lock);
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} // extern "C"
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TEST(InterruptSpinLock, LockUnlock) {
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pw::sync::InterruptSpinLock interrupt_spin_lock;
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interrupt_spin_lock.lock();
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interrupt_spin_lock.unlock();
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}
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// TODO(pwbug/291): Add real concurrency tests once we have pw::thread on SMP
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// systems given that uniprocessor systems cannot fail to acquire an ISL.
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InterruptSpinLock static_interrupt_spin_lock;
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TEST(InterruptSpinLock, LockUnlockStatic) {
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static_interrupt_spin_lock.lock();
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// TODO(pwbug/291): Ensure other cores fail to lock when its locked.
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// EXPECT_FALSE(static_interrupt_spin_lock.try_lock());
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static_interrupt_spin_lock.unlock();
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}
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TEST(InterruptSpinLock, TryLockUnlock) {
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pw::sync::InterruptSpinLock interrupt_spin_lock;
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const bool locked = interrupt_spin_lock.try_lock();
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EXPECT_TRUE(locked);
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if (locked) {
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// TODO(pwbug/291): Ensure other cores fail to lock when its locked.
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// EXPECT_FALSE(interrupt_spin_lock.try_lock());
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interrupt_spin_lock.unlock();
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}
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}
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TEST(VirtualInterruptSpinLock, LockUnlock) {
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pw::sync::VirtualInterruptSpinLock interrupt_spin_lock;
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interrupt_spin_lock.lock();
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// TODO(pwbug/291): Ensure other cores fail to lock when its locked.
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// EXPECT_FALSE(interrupt_spin_lock.try_lock());
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interrupt_spin_lock.unlock();
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}
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VirtualInterruptSpinLock static_virtual_interrupt_spin_lock;
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TEST(VirtualInterruptSpinLock, LockUnlockStatic) {
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static_virtual_interrupt_spin_lock.lock();
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// TODO(pwbug/291): Ensure other cores fail to lock when its locked.
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// EXPECT_FALSE(static_virtual_interrupt_spin_lock.try_lock());
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static_virtual_interrupt_spin_lock.unlock();
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}
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TEST(InterruptSpinLock, LockUnlockInC) {
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pw::sync::InterruptSpinLock interrupt_spin_lock;
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pw_sync_InterruptSpinLock_CallLock(&interrupt_spin_lock);
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pw_sync_InterruptSpinLock_CallUnlock(&interrupt_spin_lock);
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}
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TEST(InterruptSpinLock, TryLockUnlockInC) {
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pw::sync::InterruptSpinLock interrupt_spin_lock;
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ASSERT_TRUE(pw_sync_InterruptSpinLock_CallTryLock(&interrupt_spin_lock));
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// TODO(pwbug/291): Ensure other cores fail to lock when its locked.
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// EXPECT_FALSE(pw_sync_InterruptSpinLock_CallTryLock(&interrupt_spin_lock));
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pw_sync_InterruptSpinLock_CallUnlock(&interrupt_spin_lock);
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}
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} // namespace
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} // namespace pw::sync
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