| // Copyright 2015 The Cobalt Authors. All Rights Reserved. |
| // |
| // 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 |
| // |
| // http://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 "starboard/configuration.h" |
| #include "starboard/mutex.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| #include "starboard/nplb/thread_helpers.h" |
| #include "starboard/thread.h" |
| |
| namespace starboard { |
| namespace nplb { |
| namespace { |
| |
| struct TestContext { |
| explicit TestContext(SbMutex* mutex) : was_locked_(false), mutex_(mutex) {} |
| bool was_locked_; |
| SbMutex* mutex_; |
| }; |
| |
| void* EntryPoint(void* parameter) { |
| TestContext* context = static_cast<TestContext*>(parameter); |
| context->was_locked_ = |
| (SbMutexAcquireTry(context->mutex_) == kSbMutexAcquired); |
| return NULL; |
| } |
| |
| TEST(SbMutexAcquireTryTest, SunnyDayUncontended) { |
| SbMutex mutex; |
| EXPECT_TRUE(SbMutexCreate(&mutex)); |
| |
| SbMutexResult result = SbMutexAcquireTry(&mutex); |
| EXPECT_EQ(result, kSbMutexAcquired); |
| EXPECT_TRUE(SbMutexIsSuccess(result)); |
| EXPECT_TRUE(SbMutexRelease(&mutex)); |
| EXPECT_TRUE(SbMutexDestroy(&mutex)); |
| } |
| |
| TEST(SbMutexAcquireTest, SunnyDayAutoInit) { |
| SbMutex mutex = SB_MUTEX_INITIALIZER; |
| SbMutexResult result = SbMutexAcquireTry(&mutex); |
| EXPECT_TRUE(SbMutexRelease(&mutex)); |
| EXPECT_TRUE(SbMutexDestroy(&mutex)); |
| } |
| |
| TEST(SbMutexAcquireTryTest, RainyDayReentrant) { |
| SbMutex mutex; |
| EXPECT_TRUE(SbMutexCreate(&mutex)); |
| |
| SbMutexResult result = SbMutexAcquireTry(&mutex); |
| EXPECT_EQ(result, kSbMutexAcquired); |
| EXPECT_TRUE(SbMutexIsSuccess(result)); |
| |
| TestContext context(&mutex); |
| SbThread thread = |
| SbThreadCreate(0, kSbThreadNoPriority, kSbThreadNoAffinity, true, |
| nplb::kThreadName, &EntryPoint, &context); |
| |
| EXPECT_TRUE(SbThreadIsValid(thread)); |
| EXPECT_TRUE(SbThreadJoin(thread, NULL)); |
| EXPECT_FALSE(context.was_locked_); |
| EXPECT_TRUE(SbMutexRelease(&mutex)); |
| EXPECT_TRUE(SbMutexDestroy(&mutex)); |
| } |
| |
| } // namespace |
| } // namespace nplb |
| } // namespace starboard |