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1127 lines
28 KiB
C++
1127 lines
28 KiB
C++
#include <util/thread/queue_manager.hpp>
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#include <optional>
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#include <vector>
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#include <gtest/gtest.h>
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using namespace llarp::thread;
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void
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generation(QueueManager& manager, uint32_t pushIndex, uint32_t popIndex)
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{
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ASSERT_GE(pushIndex, popIndex);
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ASSERT_LE(pushIndex - popIndex, manager.capacity());
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for(uint32_t i = 0; i < popIndex; ++i)
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{
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uint32_t gen = 0;
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uint32_t index = 0;
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(void)manager.reservePushIndex(gen, index);
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manager.commitPushIndex(gen, index);
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auto result = manager.reservePopIndex(gen, index);
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ASSERT_EQ(result, QueueReturn::Success);
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ASSERT_EQ(index, i % manager.capacity());
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manager.commitPopIndex(gen, index);
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}
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for(uint32_t i = popIndex; i < pushIndex; ++i)
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{
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uint32_t gen = 0;
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uint32_t index = 0;
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auto result = manager.reservePushIndex(gen, index);
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ASSERT_EQ(result, QueueReturn::Success);
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ASSERT_EQ(index, i % manager.capacity());
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manager.commitPushIndex(gen, index);
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}
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}
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class IntQueue
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{
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private:
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QueueManager manager;
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std::vector< int > data;
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public:
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IntQueue(const IntQueue&) = delete;
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explicit IntQueue(size_t capacity) : manager(capacity), data(capacity, 0)
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{
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}
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~IntQueue() = default;
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bool
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tryPushBack(int value)
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{
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uint32_t gen = 0;
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uint32_t index = 0;
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if(manager.reservePushIndex(gen, index) == QueueReturn::Success)
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{
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data[index] = value;
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manager.commitPushIndex(gen, index);
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return true;
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}
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else
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{
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return false;
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}
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}
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std::optional< int >
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tryPopFront()
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{
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uint32_t gen = 0;
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uint32_t index = 0;
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if(manager.reservePopIndex(gen, index) == QueueReturn::Success)
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{
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int result = data[index];
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manager.commitPopIndex(gen, index);
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return result;
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}
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else
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{
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return std::nullopt;
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}
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}
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size_t
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size() const
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{
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return manager.size();
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}
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size_t
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capacity() const
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{
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return manager.capacity();
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}
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};
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// This class exactly mirrors the data of the QueueManager, and is used for
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// both debugging and whitebox testing.
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struct QueueData
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{
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public:
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QueueManager::AtomicIndex m_pushIndex; // Index in the buffer that the next
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// element will be added to.
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char m_pushPadding[QueueManager::Alignment
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- sizeof(QueueManager::AtomicIndex)];
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QueueManager::AtomicIndex m_popIndex; // Index in the buffer that the next
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// element will be removed from.
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char
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m_popPadding[QueueManager::Alignment - sizeof(QueueManager::AtomicIndex)];
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const size_t m_capacity; // max size of the manager.
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const uint32_t m_maxGeneration; // Maximum generation for this object.
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const uint32_t m_maxCombinedIndex; // Maximum combined value of index and
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// generation for this object.
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std::uint32_t* m_states; // Array of index states.
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};
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static_assert(sizeof(QueueData) == sizeof(QueueManager),
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"QueueData not updated");
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static constexpr uint32_t GENERATION_COUNT_SHIFT = 0x2;
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static constexpr uint32_t ELEMENT_STATE_MASK = 0x3;
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struct QueueIntrospection
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{
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private:
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const QueueData* data;
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public:
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QueueIntrospection(const QueueManager& manager)
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: data(reinterpret_cast< const QueueData* >(&manager))
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{
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}
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uint32_t
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pushIndex() const
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{
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return data->m_pushIndex % capacity();
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}
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uint32_t
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pushGeneration() const
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{
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return data->m_pushIndex / capacity();
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}
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uint32_t
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popIndex() const
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{
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return data->m_popIndex % capacity();
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}
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uint32_t
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popGeneration() const
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{
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return data->m_popIndex / capacity();
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}
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uint32_t
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elementGen(uint32_t index) const
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{
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return data->m_states[index] >> GENERATION_COUNT_SHIFT;
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}
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ElementState
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elementState(uint32_t index) const
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{
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return static_cast< ElementState >(data->m_states[index]
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& ELEMENT_STATE_MASK);
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}
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uint32_t
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maxGen() const
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{
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return data->m_maxGeneration;
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}
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uint32_t
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maxCombinedIndex() const
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{
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return data->m_maxCombinedIndex;
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}
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uint32_t
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capacity() const
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{
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return data->m_capacity;
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}
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};
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void
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adjustGeneration(QueueManager& manager, uint32_t gen)
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{
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QueueData* data = reinterpret_cast< QueueData* >(&manager);
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auto capacity = manager.capacity();
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for(size_t i = 0; i < capacity; ++i)
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{
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data->m_states[i] = gen << GENERATION_COUNT_SHIFT;
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}
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*reinterpret_cast< QueueManager::AtomicIndex* >(&data->m_pushIndex) =
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(gen * capacity);
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*reinterpret_cast< QueueManager::AtomicIndex* >(&data->m_popIndex) =
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(gen * capacity);
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}
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void
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dirtyGenerate(QueueManager& manager, uint32_t pushCombinedIndex,
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uint32_t popCombinedIndex)
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{
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ASSERT_GE(pushCombinedIndex, popCombinedIndex);
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ASSERT_LE(pushCombinedIndex - popCombinedIndex, manager.capacity());
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uint32_t capacity = manager.capacity();
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uint32_t start =
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static_cast< uint32_t >(popCombinedIndex / manager.capacity());
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adjustGeneration(manager, start);
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generation(manager, pushCombinedIndex - (start * capacity),
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popCombinedIndex - (start * capacity));
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}
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TEST(TestQueueManager, SimpleUsage)
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{
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IntQueue queue(2);
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bool rc = queue.tryPushBack(1);
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ASSERT_TRUE(rc);
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rc = queue.tryPushBack(2);
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ASSERT_TRUE(rc);
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rc = queue.tryPushBack(3);
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ASSERT_FALSE(rc);
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ASSERT_EQ(2u, queue.size());
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auto result = queue.tryPopFront();
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ASSERT_TRUE(result);
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ASSERT_EQ(1, *result);
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}
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class BasicFunctionality : public ::testing::TestWithParam< uint32_t >
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{
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};
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TEST_P(BasicFunctionality, Push)
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{
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uint32_t val = GetParam();
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QueueManager manager(val);
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ASSERT_EQ(0u, manager.size());
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uint32_t gen = 0;
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uint32_t index = 0;
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for(uint32_t i = 0; i < val; ++i)
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{
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ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
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ASSERT_EQ(i, index);
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ASSERT_EQ(0u, gen);
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ASSERT_EQ(i, manager.size() - 1);
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manager.commitPushIndex(gen, index);
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}
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ASSERT_EQ(QueueReturn::QueueFull, manager.reservePushIndex(gen, index));
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ASSERT_EQ(val, manager.size());
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}
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TEST_P(BasicFunctionality, AcquiringPopIndex)
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{
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uint32_t capacity = GetParam();
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QueueManager manager(capacity);
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ASSERT_EQ(0u, manager.size());
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uint32_t gen = 0;
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uint32_t index = 0;
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for(uint32_t g = 0; g < 3; ++g)
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{
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for(uint32_t idx = 0; idx < capacity; ++idx)
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{
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ASSERT_EQ(QueueReturn::QueueEmpty, manager.reservePopIndex(gen, index));
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ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
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ASSERT_EQ(g, gen);
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ASSERT_EQ(index, idx);
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ASSERT_EQ(1u, manager.size());
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manager.commitPushIndex(gen, index);
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ASSERT_EQ(1u, manager.size());
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ASSERT_EQ(QueueReturn::Success, manager.reservePopIndex(gen, index));
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ASSERT_EQ(g, gen);
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ASSERT_EQ(index, idx);
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ASSERT_EQ(0u, manager.size());
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manager.commitPopIndex(gen, index);
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ASSERT_EQ(0u, manager.size());
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}
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}
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}
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TEST_P(BasicFunctionality, pushIndex)
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{
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uint32_t capacity = GetParam();
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QueueManager manager(capacity);
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ASSERT_EQ(0u, manager.size());
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uint32_t generation = 0;
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uint32_t index = 0;
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// Fill the queue
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for(uint32_t idx = 0; idx < capacity; ++idx)
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{
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manager.reservePushIndex(generation, index);
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manager.commitPushIndex(generation, index);
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}
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ASSERT_EQ(capacity, manager.size());
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for(uint32_t gen = 0; gen < 3; ++gen)
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{
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for(uint32_t idx = 0; idx < capacity; ++idx)
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{
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ASSERT_EQ(QueueReturn::QueueFull,
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manager.reservePushIndex(generation, index));
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ASSERT_EQ(QueueReturn::Success,
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manager.reservePopIndex(generation, index));
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ASSERT_EQ(generation, gen);
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ASSERT_EQ(index, idx);
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ASSERT_EQ(capacity - 1, manager.size());
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manager.commitPopIndex(generation, index);
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ASSERT_EQ(capacity - 1, manager.size());
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ASSERT_EQ(QueueReturn::Success,
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manager.reservePushIndex(generation, index));
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ASSERT_EQ(generation, gen + 1);
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ASSERT_EQ(index, idx);
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ASSERT_EQ(manager.size(), capacity);
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manager.commitPushIndex(generation, index);
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ASSERT_EQ(manager.size(), capacity);
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}
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}
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}
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INSTANTIATE_TEST_SUITE_P(TestQueueManagerBasic, BasicFunctionality,
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::testing::Range(1u, 100u));
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// Potential issues:
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// - That pushing an element at the max combined index will push the next
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// element at index 0
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// - That popping an element at the max combined index will pop the next
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// element at index 0
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// - That size returns the correct size when the push index has gone past the
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// max combined index
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// - That reservePopIndexForClear and abortPushIndexReservation clear the
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// correct element and increment push/pop
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TEST(TestQueueManagerMaxCombinedIndex, PushAtMax)
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{
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QueueManager manager(1);
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QueueIntrospection state{manager};
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const uint32_t MAX_COMBINED_INDEX =
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std::numeric_limits< uint32_t >::max() >> 2;
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const uint32_t MAX_GENERATION = std::numeric_limits< uint32_t >::max() >> 2;
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const uint32_t maxGeneration = QueueIntrospection(manager).maxGen();
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const uint32_t maxCombinedIndex =
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QueueIntrospection(manager).maxCombinedIndex();
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ASSERT_EQ(maxGeneration, MAX_GENERATION);
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ASSERT_EQ(maxCombinedIndex, MAX_COMBINED_INDEX);
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dirtyGenerate(manager, MAX_COMBINED_INDEX, MAX_COMBINED_INDEX);
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uint32_t gen = 0;
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uint32_t index = 0;
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ASSERT_EQ(0u, manager.size());
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ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
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ASSERT_EQ(MAX_GENERATION, gen);
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ASSERT_EQ(0u, index);
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manager.commitPushIndex(gen, index);
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ASSERT_EQ(QueueReturn::Success, manager.reservePopIndex(gen, index));
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ASSERT_EQ(MAX_GENERATION, gen);
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ASSERT_EQ(0u, index);
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manager.commitPopIndex(gen, index);
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ASSERT_EQ(0u, manager.size());
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ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
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ASSERT_EQ(0u, gen);
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ASSERT_EQ(0u, index);
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manager.commitPushIndex(gen, index);
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ASSERT_EQ(1u, manager.size());
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ASSERT_EQ(QueueReturn::Success, manager.reservePopIndex(gen, index));
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ASSERT_EQ(0u, gen);
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ASSERT_EQ(0u, index);
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manager.commitPopIndex(gen, index);
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ASSERT_EQ(0u, manager.size());
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}
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struct CombinedIndexData
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{
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uint32_t capacity;
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uint32_t pushIndex;
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uint32_t popIndex;
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};
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std::ostream&
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operator<<(std::ostream& os, CombinedIndexData d)
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{
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os << "[ capacity = " << d.capacity << " pushIndex = " << d.pushIndex
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<< " popIndex = " << d.popIndex << " ]";
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return os;
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}
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class PopAtMax : public ::testing::TestWithParam< CombinedIndexData >
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{
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};
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TEST_P(PopAtMax, PopAtMax)
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{
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const auto& d = GetParam();
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QueueManager manager(d.capacity);
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const uint32_t NUM_GEN = QueueManager::numGenerations(d.capacity);
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const uint32_t MAX_GEN = NUM_GEN - 1;
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adjustGeneration(manager, MAX_GEN);
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uint32_t gen = 0;
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uint32_t index = 0;
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// Push and pop elements up until the pop-index.
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for(size_t j = 0; j < d.popIndex; ++j)
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{
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uint32_t INDEX = j % d.capacity;
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uint32_t GEN = (MAX_GEN + j / d.capacity) % NUM_GEN;
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ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
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ASSERT_EQ(INDEX, index);
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ASSERT_EQ(GEN, gen);
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manager.commitPushIndex(gen, index);
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ASSERT_EQ(1u, manager.size());
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ASSERT_EQ(QueueReturn::Success, manager.reservePopIndex(gen, index));
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ASSERT_EQ(INDEX, index);
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ASSERT_EQ(GEN, gen);
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manager.commitPopIndex(gen, index);
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ASSERT_EQ(0u, manager.size());
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}
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// Push elements up to the push index
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for(size_t j = d.popIndex; j < d.pushIndex; ++j)
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{
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uint32_t INDEX = j % d.capacity;
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uint32_t GEN = (MAX_GEN + j / d.capacity) % NUM_GEN;
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ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
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ASSERT_EQ(INDEX, index);
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ASSERT_EQ(GEN, gen);
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manager.commitPushIndex(gen, index);
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ASSERT_EQ(j - d.popIndex + 1, manager.size());
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}
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// Pop elements until the queue is empty.
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for(size_t j = d.popIndex; j < d.pushIndex; ++j)
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{
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uint32_t INDEX = j % d.capacity;
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uint32_t GEN = (MAX_GEN + j / d.capacity) % NUM_GEN;
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ASSERT_EQ(QueueReturn::Success, manager.reservePopIndex(gen, index));
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ASSERT_EQ(INDEX, index);
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ASSERT_EQ(GEN, gen);
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manager.commitPopIndex(gen, index);
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ASSERT_EQ(d.pushIndex - j - 1, manager.size());
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}
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}
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CombinedIndexData PopAtMaxData[] =
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{ // Capacity 2 queues for a couple generations
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{2, 1, 0},
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{2, 2, 0},
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{2, 2, 1},
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{2, 2, 2},
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{2, 3, 1},
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{2, 3, 2},
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{2, 3, 3},
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{2, 4, 2},
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{2, 4, 3},
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{2, 4, 4},
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// Capacity 3 queues for a couple generations
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{3, 2, 0},
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{3, 3, 0},
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{3, 3, 1},
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{3, 3, 2},
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{3, 3, 3},
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{3, 4, 1},
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{3, 4, 2},
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{3, 4, 3},
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{3, 4, 4},
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{3, 5, 2},
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{3, 5, 3},
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{3, 5, 4},
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{3, 5, 5},
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// Capacity 7 queue
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{7, 6, 0},
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{7, 7, 0},
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{7, 7, 6},
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{7, 13, 7},
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{7, 14, 7}};
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INSTANTIATE_TEST_SUITE_P(TestQueueManagerMaxCombinedIndex, PopAtMax,
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::testing::ValuesIn(PopAtMaxData));
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class ReservePop : public ::testing::TestWithParam< CombinedIndexData >
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{
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};
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TEST_P(ReservePop, ReservePopIndexForClear)
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{
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const auto& d = GetParam();
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QueueManager manager(d.capacity);
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const uint32_t NUM_GEN = QueueManager::numGenerations(d.capacity);
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const uint32_t MAX_GEN = NUM_GEN - 1;
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adjustGeneration(manager, MAX_GEN);
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generation(manager, d.pushIndex, d.popIndex);
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// Pop elements until the queue is empty
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uint32_t endGeneration = 0;
|
|
uint32_t endIndex = 0;
|
|
uint32_t gen = 0;
|
|
uint32_t index = 0;
|
|
|
|
ASSERT_EQ(QueueReturn::Success,
|
|
manager.reservePushIndex(endGeneration, endIndex));
|
|
|
|
for(uint32_t j = d.popIndex; j < d.pushIndex; ++j)
|
|
{
|
|
uint32_t INDEX = j % d.capacity;
|
|
uint32_t GEN = (MAX_GEN + j / d.capacity) % NUM_GEN;
|
|
|
|
ASSERT_TRUE(
|
|
manager.reservePopForClear(gen, index, endGeneration, endIndex));
|
|
|
|
ASSERT_EQ(INDEX, index);
|
|
ASSERT_EQ(GEN, gen);
|
|
manager.commitPopIndex(gen, index);
|
|
}
|
|
|
|
ASSERT_FALSE(manager.reservePopForClear(gen, index, endGeneration, endIndex));
|
|
manager.abortPushIndexReservation(endGeneration, endIndex);
|
|
ASSERT_EQ(0u, manager.size());
|
|
}
|
|
|
|
CombinedIndexData ReservePopIndexForClearData[] = {
|
|
// Capacity 2 queues for a couple generations
|
|
{2, 1, 0},
|
|
{2, 2, 1},
|
|
{2, 2, 2},
|
|
{2, 3, 2},
|
|
{2, 3, 3},
|
|
{2, 4, 3},
|
|
{2, 4, 4},
|
|
|
|
// Capacity 3 queues for a couple generations
|
|
{3, 2, 0},
|
|
{3, 3, 1},
|
|
{3, 3, 2},
|
|
{3, 3, 3},
|
|
{3, 4, 2},
|
|
{3, 4, 3},
|
|
{3, 4, 4},
|
|
{3, 5, 3},
|
|
{3, 5, 4},
|
|
{3, 5, 5},
|
|
|
|
// Capacity 7 queue
|
|
{7, 6, 0},
|
|
{7, 7, 6},
|
|
{7, 13, 7},
|
|
};
|
|
|
|
INSTANTIATE_TEST_SUITE_P(TestQueueManagerMaxCombinedIndex, ReservePop,
|
|
::testing::ValuesIn(ReservePopIndexForClearData));
|
|
|
|
struct CircularDifferenceData
|
|
{
|
|
uint32_t minuend;
|
|
uint32_t subtrahend;
|
|
uint32_t maxSize;
|
|
int32_t expectedValue;
|
|
};
|
|
|
|
std::ostream&
|
|
operator<<(std::ostream& os, CircularDifferenceData d)
|
|
{
|
|
os << "[ minuend = " << d.minuend << " subtrahend = " << d.subtrahend
|
|
<< " maxSize = " << d.maxSize << " expectedValue = " << d.expectedValue
|
|
<< " ]";
|
|
return os;
|
|
}
|
|
|
|
class CircularDifference
|
|
: public ::testing::TestWithParam< CircularDifferenceData >
|
|
{
|
|
};
|
|
|
|
TEST_P(CircularDifference, difference)
|
|
{
|
|
const auto& data = GetParam();
|
|
|
|
ASSERT_EQ(data.expectedValue,
|
|
QueueManager::circularDifference(data.minuend, data.subtrahend,
|
|
data.maxSize));
|
|
}
|
|
|
|
constexpr uint32_t OUR_INT32_MAX = std::numeric_limits< int32_t >::max();
|
|
constexpr uint32_t OUR_INT32_MAX_1 = OUR_INT32_MAX + 1;
|
|
constexpr int32_t OUR_INT32_MAX_DIV = OUR_INT32_MAX_1 / 2;
|
|
|
|
CircularDifferenceData circularDifferenceData[] = {
|
|
// capacity 1
|
|
{0, 0, 1, 0},
|
|
|
|
// capacity 2
|
|
{1, 1, 2, 0},
|
|
{1, 0, 2, 1},
|
|
{0, 1, 2, -1},
|
|
|
|
// capacity 3
|
|
{2, 0, 3, -1},
|
|
{2, 1, 3, 1},
|
|
{2, 2, 3, 0},
|
|
{1, 0, 3, 1},
|
|
{1, 1, 3, 0},
|
|
{1, 2, 3, -1},
|
|
{0, 0, 3, 0},
|
|
{0, 1, 3, -1},
|
|
{0, 2, 3, 1},
|
|
|
|
// capacity 4
|
|
{3, 0, 4, -1},
|
|
{3, 1, 4, 2},
|
|
{3, 2, 4, 1},
|
|
{3, 3, 4, 0},
|
|
{0, 3, 4, 1},
|
|
{1, 3, 4, -2},
|
|
{2, 3, 4, -1},
|
|
{3, 3, 4, 0},
|
|
|
|
// capacity INT_MAX
|
|
{OUR_INT32_MAX, 0, OUR_INT32_MAX_1, -1},
|
|
{0, OUR_INT32_MAX, OUR_INT32_MAX_1, 1},
|
|
{OUR_INT32_MAX_DIV, 0, OUR_INT32_MAX_1, OUR_INT32_MAX_DIV},
|
|
{0, OUR_INT32_MAX_DIV, OUR_INT32_MAX_1, -OUR_INT32_MAX_DIV},
|
|
|
|
// Examples circularDifference( 0, 359, 360) == 1
|
|
// circularDifference( 359, 0, 360) == -1 circularDifference(
|
|
// 180, 0, 360) == 180 circularDifference( 0, 180, 360) == -180
|
|
|
|
{0, 359, 360, 1},
|
|
{359, 0, 360, -1},
|
|
{180, 0, 360, 180},
|
|
{0, 180, 360, -180},
|
|
};
|
|
|
|
INSTANTIATE_TEST_SUITE_P(TestQueueManagerMaxCombinedIndex, CircularDifference,
|
|
::testing::ValuesIn(circularDifferenceData));
|
|
|
|
class NumGenerations : public ::testing::TestWithParam< uint32_t >
|
|
{
|
|
};
|
|
|
|
TEST_P(NumGenerations, generations)
|
|
{
|
|
uint32_t capacity = GetParam();
|
|
uint32_t numGen = QueueManager::numGenerations(capacity);
|
|
|
|
static const uint32_t MAX_ELEMENT_STATE_GEN =
|
|
std::numeric_limits< uint32_t >::max() >> 2;
|
|
|
|
static const uint32_t MAX_COMBINED_INDEX =
|
|
std::numeric_limits< uint32_t >::max() >> 1;
|
|
|
|
ASSERT_GE(numGen, 2u);
|
|
ASSERT_TRUE(MAX_ELEMENT_STATE_GEN == numGen - 1
|
|
|| ((numGen * capacity - 1 <= MAX_COMBINED_INDEX)
|
|
&& ((numGen + 1) * capacity - 1 > MAX_COMBINED_INDEX)));
|
|
}
|
|
|
|
uint32_t GenerationData[] = {1,
|
|
2,
|
|
3,
|
|
4,
|
|
15,
|
|
16,
|
|
17,
|
|
QueueManager::MAX_CAPACITY - 1,
|
|
QueueManager::MAX_CAPACITY};
|
|
|
|
INSTANTIATE_TEST_SUITE_P(TestQueueManagerMaxCombinedIndex, NumGenerations,
|
|
::testing::ValuesIn(GenerationData));
|
|
|
|
TEST(TestQueueManager, abortPushIndexReservation)
|
|
{
|
|
uint32_t genA = 0;
|
|
uint32_t genB = 0;
|
|
uint32_t indexA = 0;
|
|
uint32_t indexB = 0;
|
|
|
|
QueueManager manager(1);
|
|
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(genA, indexA));
|
|
ASSERT_NE(QueueReturn::Success, manager.reservePushIndex(genA, indexA));
|
|
|
|
manager.abortPushIndexReservation(genA, indexA);
|
|
|
|
ASSERT_EQ(0u, manager.size());
|
|
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(genB, indexB));
|
|
ASSERT_EQ(genA + 1, genB);
|
|
ASSERT_EQ(indexA, indexB);
|
|
}
|
|
|
|
struct AbortData
|
|
{
|
|
uint32_t capacity;
|
|
uint32_t pushIndex;
|
|
uint32_t popIndex;
|
|
uint32_t expectedClears;
|
|
};
|
|
|
|
std::ostream&
|
|
operator<<(std::ostream& os, AbortData d)
|
|
{
|
|
os << "[ capacity = " << d.capacity << " pushIndex = " << d.pushIndex
|
|
<< " popIndex = " << d.popIndex << " expectedClears = " << d.expectedClears
|
|
<< " ]";
|
|
return os;
|
|
}
|
|
|
|
class AbortPush : public ::testing::TestWithParam< AbortData >
|
|
{
|
|
};
|
|
|
|
TEST_P(AbortPush, abortPush)
|
|
{
|
|
const auto& data = GetParam();
|
|
|
|
QueueManager manager(data.capacity);
|
|
|
|
generation(manager, data.pushIndex, data.popIndex);
|
|
|
|
const uint32_t END_GENERATION = data.pushIndex / data.capacity;
|
|
const uint32_t END_INDEX = data.pushIndex % data.capacity;
|
|
|
|
uint32_t gen = 0;
|
|
uint32_t index = 0;
|
|
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
ASSERT_EQ(END_GENERATION, gen);
|
|
ASSERT_EQ(END_INDEX, index);
|
|
|
|
for(uint32_t i = 0; i < data.expectedClears; ++i)
|
|
{
|
|
ASSERT_TRUE(
|
|
manager.reservePopForClear(gen, index, END_GENERATION, END_INDEX));
|
|
|
|
ASSERT_EQ((data.popIndex + i) / data.capacity, gen);
|
|
ASSERT_EQ((data.popIndex + i) % data.capacity, index);
|
|
|
|
manager.commitPopIndex(gen, index);
|
|
}
|
|
|
|
ASSERT_FALSE(
|
|
manager.reservePopForClear(gen, index, END_GENERATION, END_INDEX));
|
|
|
|
manager.abortPushIndexReservation(END_GENERATION, END_INDEX);
|
|
|
|
// Verify the queue is now empty, and the current push index has changed
|
|
|
|
ASSERT_EQ(0u, manager.size());
|
|
for(uint32_t i = 0; i < data.capacity; ++i)
|
|
{
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
ASSERT_EQ(i + 1, manager.size());
|
|
|
|
ASSERT_EQ(END_GENERATION * data.capacity + END_INDEX + i + 1,
|
|
gen * data.capacity + index);
|
|
}
|
|
|
|
ASSERT_NE(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
ASSERT_EQ(data.capacity, manager.size());
|
|
}
|
|
|
|
AbortData abortData[] = {
|
|
{1, 0, 0, 0},
|
|
|
|
// Capacity 2 queues for a couple generations
|
|
{2, 0, 0, 0},
|
|
{2, 1, 0, 1},
|
|
{2, 1, 1, 0},
|
|
{2, 2, 1, 1},
|
|
{2, 2, 2, 0},
|
|
{2, 3, 2, 1},
|
|
{2, 3, 3, 0},
|
|
|
|
// Capacity 3 queues for a couple generations
|
|
{3, 0, 0, 0},
|
|
{3, 1, 0, 1},
|
|
{3, 1, 1, 0},
|
|
{3, 2, 0, 2},
|
|
{3, 2, 1, 1},
|
|
{3, 2, 2, 0},
|
|
{3, 3, 1, 2},
|
|
{3, 3, 2, 1},
|
|
{3, 3, 3, 0},
|
|
{3, 4, 2, 2},
|
|
{3, 4, 3, 1},
|
|
{3, 4, 4, 0},
|
|
|
|
// Capacity 7 queue
|
|
{7, 14, 14, 0},
|
|
{7, 15, 14, 1},
|
|
{7, 20, 14, 6},
|
|
{7, 18, 18, 0},
|
|
{7, 19, 18, 1},
|
|
{7, 24, 18, 6},
|
|
};
|
|
|
|
INSTANTIATE_TEST_SUITE_P(TestQueueManagerMaxCombinedIndex, AbortPush,
|
|
::testing::ValuesIn(abortData));
|
|
|
|
// Testing reservePopForClear
|
|
// - Failure is returned when the head of the queue is the same as the given end
|
|
// generation and index
|
|
// - Success is returned and clears the queue head when the current pop index is
|
|
// not the given end generation and index
|
|
// - We do not clear an index reserved for popping
|
|
|
|
TEST(TestQueueManagerReserve, Capacity1)
|
|
{
|
|
// It is not possible to clear a pop index when the capacity is 1.
|
|
|
|
uint32_t gen = 0;
|
|
uint32_t index = 0;
|
|
|
|
// Random values to verify we didn't change them.
|
|
uint32_t resultGen = 1024;
|
|
uint32_t resultIndex = 1023;
|
|
|
|
QueueManager manager(1);
|
|
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
|
|
ASSERT_FALSE(manager.reservePopForClear(resultGen, resultIndex, gen, index));
|
|
|
|
ASSERT_EQ(1024u, resultGen);
|
|
ASSERT_EQ(1023u, resultIndex);
|
|
|
|
ASSERT_EQ(1u, manager.size());
|
|
}
|
|
|
|
TEST(TestQueueManagerReserve, Capacity2)
|
|
{
|
|
uint32_t gen = 0;
|
|
uint32_t index = 0;
|
|
|
|
// Random values to verify we didn't change them.
|
|
uint32_t resultGen = 1024;
|
|
uint32_t resultIndex = 1023;
|
|
|
|
QueueManager manager(2);
|
|
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
|
|
ASSERT_FALSE(manager.reservePopForClear(resultGen, resultIndex, gen, index));
|
|
|
|
ASSERT_EQ(1024u, resultGen);
|
|
ASSERT_EQ(1023u, resultIndex);
|
|
manager.commitPushIndex(gen, index);
|
|
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
|
|
ASSERT_TRUE(manager.reservePopForClear(resultGen, resultIndex, gen, index));
|
|
ASSERT_EQ(0u, resultGen);
|
|
ASSERT_EQ(0u, resultIndex);
|
|
manager.commitPopIndex(resultGen, resultIndex);
|
|
|
|
manager.commitPushIndex(gen, index);
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
|
|
ASSERT_TRUE(manager.reservePopForClear(resultGen, resultIndex, gen, index));
|
|
ASSERT_EQ(0u, resultGen);
|
|
ASSERT_EQ(1u, resultIndex);
|
|
manager.commitPopIndex(resultGen, resultIndex);
|
|
manager.commitPushIndex(gen, index);
|
|
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
|
|
ASSERT_TRUE(manager.reservePopForClear(resultGen, resultIndex, gen, index));
|
|
ASSERT_EQ(1u, resultGen);
|
|
ASSERT_EQ(0u, resultIndex);
|
|
manager.commitPopIndex(resultGen, resultIndex);
|
|
manager.commitPushIndex(gen, index);
|
|
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
|
|
ASSERT_TRUE(manager.reservePopForClear(resultGen, resultIndex, gen, index));
|
|
ASSERT_EQ(1u, resultGen);
|
|
ASSERT_EQ(1u, resultIndex);
|
|
manager.commitPopIndex(resultGen, resultIndex);
|
|
manager.commitPushIndex(gen, index);
|
|
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
|
|
ASSERT_TRUE(manager.reservePopForClear(resultGen, resultIndex, gen, index));
|
|
ASSERT_EQ(2u, resultGen);
|
|
ASSERT_EQ(0u, resultIndex);
|
|
manager.commitPopIndex(resultGen, resultIndex);
|
|
manager.commitPushIndex(gen, index);
|
|
}
|
|
|
|
struct ReserveData
|
|
{
|
|
uint32_t capacity;
|
|
uint32_t pushIndex;
|
|
uint32_t popIndex;
|
|
uint32_t expectedClears;
|
|
};
|
|
|
|
std::ostream&
|
|
operator<<(std::ostream& os, ReserveData d)
|
|
{
|
|
os << "[ capacity = " << d.capacity << " pushIndex = " << d.pushIndex
|
|
<< " popIndex = " << d.popIndex << " expectedClears = " << d.expectedClears
|
|
<< " ]";
|
|
return os;
|
|
}
|
|
class Reserve : public ::testing::TestWithParam< ReserveData >
|
|
{
|
|
};
|
|
|
|
TEST_P(Reserve, clear)
|
|
{
|
|
const auto& data = GetParam();
|
|
QueueManager manager(data.capacity);
|
|
|
|
generation(manager, data.pushIndex, data.popIndex);
|
|
|
|
const uint32_t endGen = data.pushIndex / data.capacity;
|
|
const uint32_t endIdx = data.pushIndex % data.capacity;
|
|
|
|
uint32_t gen = 0;
|
|
uint32_t index = 0;
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
ASSERT_EQ(endGen, gen);
|
|
ASSERT_EQ(endIdx, index);
|
|
|
|
for(unsigned int j = 0; j < data.expectedClears; ++j)
|
|
{
|
|
ASSERT_TRUE(manager.reservePopForClear(gen, index, endGen, endIdx));
|
|
ASSERT_EQ((data.popIndex + j) / data.capacity, gen);
|
|
ASSERT_EQ((data.popIndex + j) % data.capacity, index);
|
|
manager.commitPopIndex(gen, index);
|
|
}
|
|
ASSERT_FALSE(manager.reservePopForClear(gen, index, endGen, endIdx));
|
|
manager.commitPushIndex(endGen, endIdx);
|
|
ASSERT_EQ(1u, manager.size());
|
|
}
|
|
|
|
ReserveData reserveData[] = {
|
|
{1, 0, 0, 0},
|
|
|
|
// Capacity 2 queues for a couple generations
|
|
{2, 0, 0, 0},
|
|
{2, 1, 0, 1},
|
|
{2, 1, 1, 0},
|
|
{2, 2, 1, 1},
|
|
{2, 2, 2, 0},
|
|
{2, 3, 2, 1},
|
|
{2, 3, 3, 0},
|
|
|
|
// Capacity 3 queues for a couple generations
|
|
{3, 0, 0, 0},
|
|
{3, 1, 0, 1},
|
|
{3, 1, 1, 0},
|
|
{3, 2, 0, 2},
|
|
{3, 2, 1, 1},
|
|
{3, 2, 2, 0},
|
|
{3, 3, 1, 2},
|
|
{3, 3, 2, 1},
|
|
{3, 3, 3, 0},
|
|
{3, 4, 2, 2},
|
|
{3, 4, 3, 1},
|
|
{3, 4, 4, 0},
|
|
|
|
// Capacity 7 queue
|
|
{7, 14, 14, 0},
|
|
{7, 15, 14, 1},
|
|
{7, 20, 14, 6},
|
|
{7, 18, 18, 0},
|
|
{7, 19, 18, 1},
|
|
{7, 24, 18, 6},
|
|
};
|
|
|
|
INSTANTIATE_TEST_SUITE_P(TestQueueManagerReserve, Reserve,
|
|
::testing::ValuesIn(reserveData));
|
|
|
|
TEST(TestQueueManager, Enabled)
|
|
{
|
|
QueueManager manager(3);
|
|
|
|
ASSERT_TRUE(manager.enabled());
|
|
|
|
uint32_t gen = 0;
|
|
uint32_t index = 0;
|
|
|
|
// Insert 2 elements.
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
manager.commitPushIndex(gen, index);
|
|
ASSERT_EQ(1u, manager.size());
|
|
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
manager.commitPushIndex(gen, index);
|
|
ASSERT_EQ(2u, manager.size());
|
|
|
|
// Disable the queue.
|
|
manager.disable();
|
|
ASSERT_FALSE(manager.enabled());
|
|
|
|
// Test that attempting to push fails.
|
|
ASSERT_EQ(QueueReturn::QueueDisabled, manager.reservePushIndex(gen, index));
|
|
ASSERT_EQ(2u, manager.size());
|
|
|
|
// Test that attempting to pop succeeds.
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePopIndex(gen, index));
|
|
manager.commitPopIndex(gen, index);
|
|
ASSERT_EQ(1u, manager.size());
|
|
|
|
// Test that attempting to push still fails.
|
|
ASSERT_EQ(QueueReturn::QueueDisabled, manager.reservePushIndex(gen, index));
|
|
ASSERT_EQ(1u, manager.size());
|
|
|
|
// Disable the queue a second time, and verify that has no effect.
|
|
manager.disable();
|
|
ASSERT_FALSE(manager.enabled());
|
|
|
|
// Test that attempting to push still fails.
|
|
ASSERT_EQ(QueueReturn::QueueDisabled, manager.reservePushIndex(gen, index));
|
|
ASSERT_EQ(1u, manager.size());
|
|
|
|
// Enable the queue.
|
|
manager.enable();
|
|
ASSERT_TRUE(manager.enabled());
|
|
|
|
// Test that attempting to push succeeds.
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
manager.commitPushIndex(gen, index);
|
|
ASSERT_EQ(2u, manager.size());
|
|
|
|
// Test that attempting to pop succeeds.
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePopIndex(gen, index));
|
|
manager.commitPopIndex(gen, index);
|
|
ASSERT_EQ(1u, manager.size());
|
|
|
|
// Enable the queue a second time, and verify that has no effect.
|
|
manager.enable();
|
|
ASSERT_TRUE(manager.enabled());
|
|
|
|
// Test that attempting to push succeeds.
|
|
ASSERT_EQ(QueueReturn::Success, manager.reservePushIndex(gen, index));
|
|
manager.commitPushIndex(gen, index);
|
|
ASSERT_EQ(2u, manager.size());
|
|
}
|