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*/

/*
hipMalloc3DArray API test scenarios
1. Basic Functionality
2. Negative Scenarios
3. Allocating Small and big chunk data
4. Multithreaded scenario
*/



#include <hip_test_common.hh>

static constexpr auto ARRAY_SIZE{4};
static constexpr auto BIG_ARRAY_SIZE{100};
static constexpr auto ARRAY_LOOP{100};

/*
 * This API verifies  memory allocations for small and
 * bigger chunks of data.
 * Two scenarios are verified in this API
 * 1. SmallArray: Allocates ARRAY_SIZE in a loop and
 *    releases the memory and verifies the meminfo.
 * 2. BigArray: Allocates BIG_ARRAY_SIZE in a loop and
 *    releases the memory and verifies the meminfo
 *
 * In both cases, the memory info before allocation and
 * after releasing the memory should be the same
 *
 */
static void Malloc3DArray_DiffSizes(int gpu) {
  HIP_CHECK(hipSetDevice(gpu));
  std::vector<int> array_size;
  array_size.push_back(ARRAY_SIZE);
  array_size.push_back(BIG_ARRAY_SIZE);
  for (auto &size : array_size) {
    int width{size}, height{size}, depth{size};
    hipChannelFormatDesc channelDesc = hipCreateChannelDesc(sizeof(float)*8, 0,
        0, 0, hipChannelFormatKindFloat);
    hipArray *arr[ARRAY_LOOP];
    size_t tot, avail, ptot, pavail;
    HIP_CHECK(hipMemGetInfo(&pavail, &ptot));
    for (int i = 0; i < ARRAY_LOOP; i++) {
      HIP_CHECK(hipMalloc3DArray(&arr[i], &channelDesc, make_hipExtent(width,
              height, depth), hipArrayDefault));
    }
    for (int i = 0; i < ARRAY_LOOP; i++) {
      HIP_CHECK(hipFreeArray(arr[i]));
    }
    HIP_CHECK(hipMemGetInfo(&avail, &tot));
    if ((pavail != avail)) {
      HIPASSERT(false);
    }
  }
}

/* Thread Function */
static void Malloc3DArrayThreadFunc(int gpu) {
  Malloc3DArray_DiffSizes(gpu);
}

/*
 * Verifies the negative scenarios of hipMalloc3DArray API
 */
TEST_CASE("Unit_hipMalloc3DArray_Negative") {
  constexpr int width{ARRAY_SIZE}, height{ARRAY_SIZE}, depth{ARRAY_SIZE};
  hipChannelFormatDesc channelDesc = hipCreateChannelDesc(sizeof(float)*8, 0,
                                     0, 0, hipChannelFormatKindFloat);
  hipArray *arr;
#if HT_NVIDIA
  SECTION("NullPointer to Array") {
    REQUIRE(hipMalloc3DArray(nullptr, &channelDesc, make_hipExtent(width,
            height, depth), hipArrayDefault) != hipSuccess);
  }

  SECTION("NullPointer to Channel Descriptor") {
    REQUIRE(hipMalloc3DArray(&arr, nullptr, make_hipExtent(width,
            height, depth), hipArrayDefault) != hipSuccess);
  }
#endif
  SECTION("Width 0 in hipExtent") {
    REQUIRE(hipMalloc3DArray(&arr, &channelDesc, make_hipExtent(0,
            height, width), hipArrayDefault) != hipSuccess);
  }

  SECTION("Height 0 in hipExtent") {
    REQUIRE(hipMalloc3DArray(&arr, &channelDesc, make_hipExtent(width,
            0, width), hipArrayDefault) != hipSuccess);
  }

  SECTION("Invalid Flag") {
    REQUIRE(hipMalloc3DArray(&arr, &channelDesc, make_hipExtent(width,
            height, depth), 100) != hipSuccess);
  }

  SECTION("Width,Height & Depth 0 in hipExtent") {
    REQUIRE(hipMalloc3DArray(&arr, &channelDesc, make_hipExtent(0,
            0, 0), hipArrayDefault) != hipSuccess);
  }

  SECTION("Max int values to extent") {
    REQUIRE(hipMalloc3DArray(&arr, &channelDesc,
            make_hipExtent(std::numeric_limits<int>::max(),
            std::numeric_limits<int>::max(),
            std::numeric_limits<int>::max()),
            hipArrayDefault) != hipSuccess);
  }
}
/*
 * Verifies the extent validation scenarios
 * 1. Passing depth as 0 would create 2D array
 * 2. Passing height and depth as 0 would create 1D array
 * from hipMalloc3DArray API
 */
TEST_CASE("Unit_hipMalloc3DArray_ExtentValidation") {
  constexpr int width{ARRAY_SIZE}, height{ARRAY_SIZE};
  hipChannelFormatDesc channelDesc = hipCreateChannelDesc(sizeof(float)*8, 0,
                                     0, 0, hipChannelFormatKindFloat);
  hipArray *arr;

  SECTION("Depth 0 in hipExtent") {
    REQUIRE(hipMalloc3DArray(&arr, &channelDesc, make_hipExtent(width,
            height, 0), hipArrayDefault) == hipSuccess);
    HIP_CHECK(hipFreeArray(arr));
  }

  SECTION("Height & Depth 0 in hipExtent") {
    REQUIRE(hipMalloc3DArray(&arr, &channelDesc, make_hipExtent(width,
            0, 0), hipArrayDefault) == hipSuccess);
    HIP_CHECK(hipFreeArray(arr));
  }
}

/*
 * Verifies hipMalloc3DArray API by passing width,height
 * and depth as 10
 */
TEST_CASE("Unit_hipMalloc3DArray_Basic") {
  constexpr int width{ARRAY_SIZE}, height{ARRAY_SIZE}, depth{ARRAY_SIZE};
  hipChannelFormatDesc channelDesc = hipCreateChannelDesc(sizeof(float)*8, 0,
                                     0, 0, hipChannelFormatKindFloat);
  hipArray *arr;

  REQUIRE(hipMalloc3DArray(&arr, &channelDesc, make_hipExtent(width,
          height, depth), hipArrayDefault) == hipSuccess);
  HIP_CHECK(hipFreeArray(arr));
}

TEST_CASE("Unit_hipMalloc3DArray_DiffSizes") {
  Malloc3DArray_DiffSizes(0);
}
/*
This testcase verifies the hipMalloc3DArray API in multithreaded
scenario by launching threads in parallel on multiple GPUs
and verifies the hipMalloc3DArray API with small and big chunks data
*/
TEST_CASE("Unit_hipMalloc3DArray_MultiThread") {
  std::vector<std::thread> threadlist;
  int devCnt = 0;
  devCnt = HipTest::getDeviceCount();
  size_t tot, avail, ptot, pavail;
  HIP_CHECK(hipMemGetInfo(&pavail, &ptot));
  for (int i = 0; i < devCnt; i++) {
    threadlist.push_back(std::thread(Malloc3DArrayThreadFunc, i));
  }

  for (auto &t : threadlist) {
    t.join();
  }
  HIP_CHECK(hipMemGetInfo(&avail, &tot));

  if (pavail != avail) {
    WARN("Memory leak of hipMalloc3D API in multithreaded scenario");
    REQUIRE(false);
  }
}