/**
 * Copyright 2019-2020 Huawei Technologies Co., Ltd
 *
 * 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.
 */

/**
 * @file base.h
 * @brief HCOM data type definition 
 * 
 */

#ifndef HCCL_BASE_H_
#define HCCL_BASE_H_

#define HCOM_GROUP_PREFIX "HCOM_GROUP_"

#ifdef __cplusplus
extern "C" {
#endif // __cplusplus

typedef signed char s8;
typedef signed short s16;
typedef signed int s32;
typedef signed long long s64;
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
typedef unsigned long long u64;

/**
 * @brief HCOM functions return value definition
 */
typedef enum tagHcclResult {
    HCCL_SUCCESS = 0,               /**< success */
    HCCL_E_PARA = 1,                /**< parameter error */
    HCCL_E_PTR = 2,                 /**< empty pointer */
    HCCL_E_MEMORY = 3,              /**< memory error */
    HCCL_E_INTERNAL = 4,            /**< internal error */
    HCCL_E_NOT_SUPPORT = 5,         /**< not support feature */
    HCCL_E_NOT_FOUND = 6,           /**< not found specific resource */
    HCCL_E_UNAVAIL = 7,             /**< resource unavailable */
    HCCL_E_SYSCALL = 8,             /**< call system interface error */
    HCCL_E_TIMEOUT = 9,             /**< timeout */
    HCCL_E_OPEN_FILE_FAILURE = 10,  /**< open file fail */
    HCCL_E_TCP_CONNECT = 11,        /**< tcp connect fail */
    HCCL_E_ROCE_CONNECT = 12,       /**< roce connect fail */
    HCCL_E_TCP_TRANSFER = 13,       /**< tcp transfer fail */
    HCCL_E_ROCE_TRANSFER = 14,      /**< roce transfer fail */
    HCCL_E_RUNTIME = 15,            /**< call runtime api fail */
    HCCL_E_DRV = 16,                /**< call driver api fail */
    HCCL_E_PROFILING = 17,          /**< call profiling api fail */
    HCCL_E_CCE = 18,                /**< call cce api fail */
    HCCL_E_NETWORK = 19,            /**< call network api fail */
    HCCL_E_RESERVED                 /**< reserved */
} hcclResult_t;

/* handle to communicator */
typedef void *hcclComm_t;

/**
 * @brief HCCL Reduction opperation
 */
typedef enum tagHcclRedOp {
    HCCL_REP_OP_SUM = 0,    /**< sum */
    HCCL_REP_OP_PROD = 1,   /**< prod */
    HCCL_REP_OP_MAX = 2,    /**< max */
    HCCL_REP_OP_MIN = 3,    /**< min */
    HCCL_REP_OP_RESERVED    /**< reserved */
} hcclRedOp_t;

/**
 * @brief HCCL data type
 */
typedef enum tagHcclDataType {
    HCCL_DATA_TYPE_INT8 = 0,  /**< int8 */
    HCCL_DATA_TYPE_INT16 = 1,  /**< int16 */
    HCCL_DATA_TYPE_INT32 = 2,   /**< int32 */
    HCCL_DATA_TYPE_FP16 = 3,  /**< fp16 */
    HCCL_DATA_TYPE_FP32 = 4, /**< fp32 */
    HCCL_DATA_TYPE_INT64 = 5, /**< fp32 */
    HCCL_DATA_TYPE_UINT64 = 6, /**< fp32 */
    HCCL_DATA_TYPE_RESERVED   /**< reserved */
} hcclDataType_t;

const u32 HCCL_MAX_SEGMENT_NUM = 8;   // The max number of gradient segments.

/**
 * @brief the feature of the model
 */
struct model_feature {
    const char *model_name;  /**< The model name */
    u32 gradient_num;        /**< The number of gradients */
    float *gradient_size;    /**< The size of each gradient */
    float *gradient_time;    /**< The BP compution time of each gradient */
};

enum GradSplitForceMode {
    FORCE_NONE,     /**< no force */
    FORCE_SIZE,     /**< force split gradient by size */
    FORCE_RESERVED  /**< reserved */
};

/**
* @brief stream handle.
*/
typedef void *rtStream_t;

/**
* @brief model handle.
*/
typedef void *rtModel_t;

#ifdef __cplusplus
}
#endif // __cplusplus
#endif // HCCL_BASE_H_