/**

 * Copyright (c) 2025 Huawei Technologies Co., Ltd.

 * This program is free software, you can redistribute it and/or modify it under the terms and conditions of

 * CANN Open Software License Agreement Version 2.0 (the "License").

 * Please refer to the License for details. You may not use this file except in compliance with the License.

 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,

 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.

 * See LICENSE in the root of the software repository for the full text of the License.

 */



#include <iostream>

#include "utils.h"

#include "acl/acl.h"

using namespace std;



// 核函数，让x自增1

extern void EasyOP(uint32_t coreDim, void *stream, uint32_t* x);

namespace {

    void CallBackFunc(void *arg)

    {

        INFO_LOG("Hostfunc callback!!!");

    }

}

int main()

{

    // 初始化

    int32_t deviceId = 0;

    uint32_t num = 0;

    uint32_t *numDevice = nullptr;

    size_t size = sizeof(uint32_t);

    uint32_t blockDim = 1;

    aclrtStream stream = nullptr;

    aclrtContext context;

    CHECK_ERROR(aclInit(nullptr));

    CHECK_ERROR(aclrtSetDevice(deviceId));

    CHECK_ERROR(aclrtCreateContext(&context, deviceId));

    // 默认流下发任务,默认流随着context创建而创建，给函数传入空即使用默认流

    CHECK_ERROR(aclrtMalloc((void **)&numDevice, size, ACL_MEM_MALLOC_HUGE_FIRST));

    CHECK_ERROR(aclrtMemcpy(&num, size, numDevice, size, ACL_MEMCPY_DEVICE_TO_HOST));

    CHECK_ERROR(aclrtCreateStream(&stream));

    // 默认为遇错继续执行，调用该函数设置为遇错即停，当一个任务执行遇到错误，后续任务将不进行

    CHECK_ERROR(aclrtSetStreamFailureMode(stream, ACL_STOP_ON_FAILURE));

    EasyOP(blockDim, stream, numDevice);

    // 调用该操作可以让程序自动创建线程来监听回调，无需主动创建

    CHECK_ERROR(aclrtLaunchHostFunc(stream, CallBackFunc, nullptr));

    CHECK_ERROR(aclrtSynchronizeStream(stream));

    CHECK_ERROR(aclrtMemcpy(&num, size, numDevice, size, ACL_MEMCPY_DEVICE_TO_HOST));

    INFO_LOG("After assigning the task through the created stream, the current result is: %d.", num);

    // 释放资源

    CHECK_ERROR(aclrtFree(numDevice));

    CHECK_ERROR(aclrtDestroyStreamForce(stream));

    CHECK_ERROR(aclrtDestroyContext(context));

    CHECK_ERROR(aclrtResetDeviceForce(deviceId));

    aclFinalize();

    INFO_LOG("Resource cleanup completed.");

}