/*
 * Copyright (c) 2017 - 2018, Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#include "runtime/mem_obj/mem_obj.h"
#include "unit_tests/mocks/mock_context.h"
#include "unit_tests/mocks/mock_device.h"
#include "unit_tests/mocks/mock_memory_manager.h"
#include "unit_tests/libult/ult_command_stream_receiver.h"
#include "test.h"

using namespace OCLRT;

template <typename Family>
class MyCsr : public UltCommandStreamReceiver<Family> {
  public:
    MyCsr(const HardwareInfo &hwInfo) : UltCommandStreamReceiver<Family>(hwInfo) {}
    MOCK_METHOD1(waitForFlushStamp, bool(FlushStamp &flushStampToWait));
    MOCK_METHOD3(waitForCompletionWithTimeout, bool(bool enableTimeout, int64_t timeoutMs, uint32_t taskCountToWait));
};

void CL_CALLBACK emptyDestructorCallback(cl_mem memObj, void *userData) {
}

class MemObjDestructionTest : public ::testing::TestWithParam<bool> {
  public:
    void SetUp() override {
        context.reset(new MockContext());
        memoryManager = new MockMemoryManager;
        device = static_cast<MockDevice *>(context->getDevice(0));
        device->injectMemoryManager(memoryManager);
        context->setMemoryManager(memoryManager);
        allocation = memoryManager->allocateGraphicsMemory(size, MemoryConstants::pageSize);
        memObj = new MemObj(context.get(), CL_MEM_OBJECT_BUFFER,
                            CL_MEM_READ_WRITE,
                            size,
                            nullptr, nullptr, allocation, true, false, false);
        *context->getDevice(0)->getTagAddress() = 0;
    }

    void TearDown() override {
        context.reset();
    }

    void makeMemObjUsed() {
        memObj->getGraphicsAllocation()->taskCount = 3;
    }

    void makeMemObjNotReady() {
        makeMemObjUsed();
        *context->getDevice(0)->getTagAddress() = memObj->getGraphicsAllocation()->taskCount - 1;
    }

    void makeMemObjReady() {
        makeMemObjUsed();
        *context->getDevice(0)->getTagAddress() = memObj->getGraphicsAllocation()->taskCount;
    }

    MockDevice *device;
    MockMemoryManager *memoryManager;
    std::unique_ptr<MockContext> context;
    GraphicsAllocation *allocation;
    MemObj *memObj;
    size_t size = MemoryConstants::pageSize;
};

class MemObjAsyncDestructionTest : public MemObjDestructionTest {
  public:
    void SetUp() override {
        DebugManager.flags.EnableAsyncDestroyAllocations.set(true);
        MemObjDestructionTest::SetUp();
    }
    void TearDown() override {
        MemObjDestructionTest::TearDown();
        DebugManager.flags.EnableAsyncDestroyAllocations.set(defaultFlag);
    }
    bool defaultFlag = DebugManager.flags.EnableAsyncDestroyAllocations.get();
};

class MemObjSyncDestructionTest : public MemObjDestructionTest {
  public:
    void SetUp() override {
        DebugManager.flags.EnableAsyncDestroyAllocations.set(false);
        MemObjDestructionTest::SetUp();
    }
    void TearDown() override {
        MemObjDestructionTest::TearDown();
        DebugManager.flags.EnableAsyncDestroyAllocations.set(defaultFlag);
    }
    bool defaultFlag = DebugManager.flags.EnableAsyncDestroyAllocations.get();
};

TEST_P(MemObjAsyncDestructionTest, givenMemObjWithDestructableAllocationWhenAsyncDestructionsAreEnabledAndAllocationIsNotReadyAndMemObjectIsDestructedThenAllocationIsDeferred) {
    bool isMemObjReady;
    bool expectedDeferration;
    isMemObjReady = GetParam();
    expectedDeferration = !isMemObjReady;

    if (isMemObjReady) {
        makeMemObjReady();
    } else {
        makeMemObjNotReady();
    }
    EXPECT_TRUE(memoryManager->isAllocationListEmpty());

    delete memObj;

    EXPECT_EQ(!expectedDeferration, memoryManager->isAllocationListEmpty());
    if (expectedDeferration) {
        EXPECT_EQ(allocation, memoryManager->peekAllocationListHead());
    }
}

HWTEST_P(MemObjAsyncDestructionTest, givenUsedMemObjWithAsyncDestructionsEnabledThatHasDestructorCallbacksWhenItIsDestroyedThenDestructorWaitsOnTaskCount) {
    makeMemObjUsed();

    bool hasCallbacks = GetParam();

    if (hasCallbacks) {
        memObj->setDestructorCallback(emptyDestructorCallback, nullptr);
    }

    auto mockCsr = new ::testing::NiceMock<MyCsr<FamilyType>>(device->getHardwareInfo());
    device->resetCommandStreamReceiver(mockCsr);

    bool desired = true;

    auto waitForCompletionWithTimeoutMock = [=](bool enableTimeout, int64_t timeoutMs, uint32_t taskCountToWait) -> bool { return desired; };

    ON_CALL(*mockCsr, waitForCompletionWithTimeout(::testing::_, ::testing::_, ::testing::_))
        .WillByDefault(::testing::Invoke(waitForCompletionWithTimeoutMock));

    if (hasCallbacks) {
        EXPECT_CALL(*mockCsr, waitForCompletionWithTimeout(::testing::_, TimeoutControls::maxTimeout, allocation->taskCount))
            .Times(1);
    } else {
        EXPECT_CALL(*mockCsr, waitForCompletionWithTimeout(::testing::_, ::testing::_, ::testing::_))
            .Times(0);
    }
    delete memObj;
}

HWTEST_P(MemObjAsyncDestructionTest, givenUsedMemObjWithAsyncDestructionsEnabledThatHasAllocatedMappedPtrWhenItIsDestroyedThenDestructorWaitsOnTaskCount) {
    makeMemObjUsed();

    bool hasAllocatedMappedPtr = GetParam();

    if (hasAllocatedMappedPtr) {
        auto allocatedPtr = alignedMalloc(size, MemoryConstants::pageSize);
        memObj->setAllocatedMapPtr(allocatedPtr);
    }

    auto mockCsr = new ::testing::NiceMock<MyCsr<FamilyType>>(device->getHardwareInfo());
    device->resetCommandStreamReceiver(mockCsr);

    bool desired = true;

    auto waitForCompletionWithTimeoutMock = [=](bool enableTimeout, int64_t timeoutMs, uint32_t taskCountToWait) -> bool { return desired; };

    ON_CALL(*mockCsr, waitForCompletionWithTimeout(::testing::_, ::testing::_, ::testing::_))
        .WillByDefault(::testing::Invoke(waitForCompletionWithTimeoutMock));

    if (hasAllocatedMappedPtr) {
        EXPECT_CALL(*mockCsr, waitForCompletionWithTimeout(::testing::_, TimeoutControls::maxTimeout, allocation->taskCount))
            .Times(1);
    } else {
        EXPECT_CALL(*mockCsr, waitForCompletionWithTimeout(::testing::_, ::testing::_, ::testing::_))
            .Times(0);
    }
    delete memObj;
}

HWTEST_P(MemObjAsyncDestructionTest, givenUsedMemObjWithAsyncDestructionsEnabledThatHasDestructableMappedPtrWhenItIsDestroyedThenDestructorWaitsOnTaskCount) {
    auto storage = alignedMalloc(size, MemoryConstants::pageSize);

    bool hasAllocatedMappedPtr = GetParam();

    if (!hasAllocatedMappedPtr) {
        delete memObj;
        allocation = memoryManager->allocateGraphicsMemory(size, MemoryConstants::pageSize);
        MemObjOffsetArray origin = {{0, 0, 0}};
        MemObjSizeArray region = {{1, 1, 1}};
        cl_map_flags mapFlags = CL_MAP_READ;
        memObj = new MemObj(context.get(), CL_MEM_OBJECT_BUFFER,
                            CL_MEM_READ_WRITE,
                            size,
                            storage, nullptr, allocation, true, false, false);
        memObj->addMappedPtr(storage, 1, mapFlags, region, origin, 0);
    } else {
        memObj->setAllocatedMapPtr(storage);
    }

    makeMemObjUsed();
    auto mockCsr = new ::testing::NiceMock<MyCsr<FamilyType>>(device->getHardwareInfo());
    device->resetCommandStreamReceiver(mockCsr);

    bool desired = true;

    auto waitForCompletionWithTimeoutMock = [=](bool enableTimeout, int64_t timeoutMs, uint32_t taskCountToWait) -> bool { return desired; };

    ON_CALL(*mockCsr, waitForCompletionWithTimeout(::testing::_, ::testing::_, ::testing::_))
        .WillByDefault(::testing::Invoke(waitForCompletionWithTimeoutMock));

    if (hasAllocatedMappedPtr) {
        EXPECT_CALL(*mockCsr, waitForCompletionWithTimeout(::testing::_, TimeoutControls::maxTimeout, allocation->taskCount))
            .Times(1);
    } else {
        EXPECT_CALL(*mockCsr, waitForCompletionWithTimeout(::testing::_, ::testing::_, ::testing::_))
            .Times(0);
    }
    delete memObj;

    if (!hasAllocatedMappedPtr) {
        alignedFree(storage);
    }
}

HWTEST_P(MemObjSyncDestructionTest, givenMemObjWithDestructableAllocationWhenAsyncDestructionsAreDisabledThenDestructorWaitsOnTaskCount) {
    bool isMemObjReady;
    isMemObjReady = GetParam();

    if (isMemObjReady) {
        makeMemObjReady();
    } else {
        makeMemObjNotReady();
    }
    auto mockCsr = new ::testing::NiceMock<MyCsr<FamilyType>>(device->getHardwareInfo());
    device->resetCommandStreamReceiver(mockCsr);

    bool desired = true;

    auto waitForCompletionWithTimeoutMock = [=](bool enableTimeout, int64_t timeoutMs, uint32_t taskCountToWait) -> bool { return desired; };

    ON_CALL(*mockCsr, waitForCompletionWithTimeout(::testing::_, ::testing::_, ::testing::_))
        .WillByDefault(::testing::Invoke(waitForCompletionWithTimeoutMock));

    EXPECT_CALL(*mockCsr, waitForCompletionWithTimeout(::testing::_, TimeoutControls::maxTimeout, allocation->taskCount))
        .Times(1);

    delete memObj;
}

HWTEST_P(MemObjSyncDestructionTest, givenMemObjWithDestructableAllocationWhenAsyncDestructionsAreDisabledThenAllocationIsNotDeferred) {
    bool isMemObjReady;
    isMemObjReady = GetParam();

    if (isMemObjReady) {
        makeMemObjReady();
    } else {
        makeMemObjNotReady();
    }
    auto mockCsr = new ::testing::NiceMock<MyCsr<FamilyType>>(device->getHardwareInfo());
    device->resetCommandStreamReceiver(mockCsr);

    bool desired = true;

    auto waitForCompletionWithTimeoutMock = [=](bool enableTimeout, int64_t timeoutMs, uint32_t taskCountToWait) -> bool { return desired; };

    ON_CALL(*mockCsr, waitForCompletionWithTimeout(::testing::_, ::testing::_, ::testing::_))
        .WillByDefault(::testing::Invoke(waitForCompletionWithTimeoutMock));

    delete memObj;
    EXPECT_TRUE(memoryManager->isAllocationListEmpty());
}

INSTANTIATE_TEST_CASE_P(
    MemObjTests,
    MemObjAsyncDestructionTest,
    testing::Bool());

INSTANTIATE_TEST_CASE_P(
    MemObjTests,
    MemObjSyncDestructionTest,
    testing::Bool());