mirror of
https://fuchsia.googlesource.com/third_party/pigweed.googlesource.com/pigweed/pigweed
synced 2024-09-20 13:51:05 +00:00
cc9ef83673
Adds clang thread safety annotations to the interrupt spin lock for C++ usage. Note that this is only checked when compiling with clang. C APIs explicitly escape the thread safety annotations. Change-Id: Ic829afd41b3978c507ebe294d34e1e0dc03865b4 Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/40241 Reviewed-by: Keir Mierle <keir@google.com> Reviewed-by: Wyatt Hepler <hepler@google.com> Pigweed-Auto-Submit: Ewout van Bekkum <ewout@google.com> Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
// 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
|
|
//
|
|
// https://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// 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.
|
|
|
|
#include "gtest/gtest.h"
|
|
#include "pw_sync/interrupt_spin_lock.h"
|
|
|
|
namespace pw::sync {
|
|
namespace {
|
|
|
|
extern "C" {
|
|
|
|
// Functions defined in interrupt_spin_lock_facade_test_c.c which call the API
|
|
// from C.
|
|
void pw_sync_InterruptSpinLock_CallLock(
|
|
pw_sync_InterruptSpinLock* interrupt_spin_lock);
|
|
bool pw_sync_InterruptSpinLock_CallTryLock(
|
|
pw_sync_InterruptSpinLock* interrupt_spin_lock);
|
|
void pw_sync_InterruptSpinLock_CallUnlock(
|
|
pw_sync_InterruptSpinLock* interrupt_spin_lock);
|
|
|
|
} // extern "C"
|
|
|
|
TEST(InterruptSpinLock, LockUnlock) {
|
|
pw::sync::InterruptSpinLock interrupt_spin_lock;
|
|
interrupt_spin_lock.lock();
|
|
interrupt_spin_lock.unlock();
|
|
}
|
|
|
|
// TODO(pwbug/291): Add real concurrency tests once we have pw::thread.
|
|
|
|
InterruptSpinLock static_interrupt_spin_lock;
|
|
TEST(InterruptSpinLock, LockUnlockStatic) {
|
|
static_interrupt_spin_lock.lock();
|
|
// Ensure it fails to lock when already held.
|
|
EXPECT_FALSE(static_interrupt_spin_lock.try_lock());
|
|
static_interrupt_spin_lock.unlock();
|
|
}
|
|
|
|
TEST(InterruptSpinLock, TryLockUnlock) {
|
|
pw::sync::InterruptSpinLock interrupt_spin_lock;
|
|
const bool locked = interrupt_spin_lock.try_lock();
|
|
EXPECT_TRUE(locked);
|
|
if (locked) {
|
|
// Ensure it fails to lock when already held.
|
|
EXPECT_FALSE(interrupt_spin_lock.try_lock());
|
|
interrupt_spin_lock.unlock();
|
|
}
|
|
}
|
|
|
|
TEST(InterruptSpinLock, LockUnlockInC) {
|
|
pw::sync::InterruptSpinLock interrupt_spin_lock;
|
|
pw_sync_InterruptSpinLock_CallLock(&interrupt_spin_lock);
|
|
pw_sync_InterruptSpinLock_CallUnlock(&interrupt_spin_lock);
|
|
}
|
|
|
|
TEST(InterruptSpinLock, TryLockUnlockInC) {
|
|
pw::sync::InterruptSpinLock interrupt_spin_lock;
|
|
ASSERT_TRUE(pw_sync_InterruptSpinLock_CallTryLock(&interrupt_spin_lock));
|
|
// Ensure it fails to lock when already held.
|
|
EXPECT_FALSE(pw_sync_InterruptSpinLock_CallTryLock(&interrupt_spin_lock));
|
|
pw_sync_InterruptSpinLock_CallUnlock(&interrupt_spin_lock);
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace pw::sync
|