abi_obj.h

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2021-2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: LicenseRef-NvidiaProprietary
 *
 * NVIDIA CORPORATION, its affiliates and licensors retain all intellectual
 * property and proprietary rights in and to this material, related
 * documentation and any modifications thereto. Any use, reproduction,
 * disclosure or distribution of this material and related documentation
 * without an express license agreement from NVIDIA CORPORATION or
 * its affiliates is strictly prohibited.
 */
 
 
#ifndef _DS3D_COMMON_ABI_DATA_OBJ__H
#define _DS3D_COMMON_ABI_DATA_OBJ__H
 
#include <ds3d/common/common.h>
#include <ds3d/common/idatatype.h>
#include <ds3d/common/type_trait.h>
 
namespace ds3d {
 
struct abiRefObj {
    virtual void destroy() = 0;
    virtual abiRefObj* refCopy_i() const = 0;
    virtual ~abiRefObj() = default;
};
 
enum class DataMapPolicy : int {
    kCopyPolicyNone = 0,
    kCopyWithIntegerId = 1,
};
 
template <class T>
struct abiRefT : public abiRefObj {
    virtual T* data() const = 0;
    abiRefT* refCopy() const { return dynamic_cast<abiRefT*>(refCopy_i()); }
};
 
typedef abiRefT<void> abiRefAny;
 
class abiDataMap {
public:
    abiDataMap() = default;
    virtual ~abiDataMap() = default;
    virtual ErrCode setBuf_i(const char* key, TIdType tid, abiRefAny* data) = 0;
    virtual ErrCode getBuf_i(const char* key, TIdType tid, const abiRefAny*& data) const = 0;
    virtual ErrCode removeBuf_i(const char* key) = 0;
    virtual bool has_i(const char* key) const = 0;
    virtual ErrCode clear_i() = 0;
    // clone input datamap into this datamap
    // existing keys' values in this datamap will be updated with values from input
    virtual ErrCode copy_i(abiDataMap* input, DataMapPolicy policy, char* policyData) = 0;
    // key provided will be used to selectively copy just that entry from input
    virtual ErrCode copy_i(abiDataMap* input, const char* key, DataMapPolicy policy, char* policyData) = 0;
    //list all entries in a datamap
    virtual int32_t getSize_i() = 0;
    // print list of keys in the map
    virtual void printDebug_i() const = 0;
    DS3D_DISABLE_CLASS_COPY(abiDataMap);
};
 
typedef abiRefT<abiDataMap> abiRefDataMap;
 
// define Callback abi interfaces
template <typename... Args>
struct abiCallBackT : public abiRefObj {
    using CppFunc = std::function<void(Args...)>;
    virtual void notify(Args... args) = 0;
    abiCallBackT* refCopy() const { return dynamic_cast<abiCallBackT*>(refCopy_i()); }
};
 
typedef abiCallBackT<ErrCode, const char*> abiErrorCB;
typedef abiCallBackT<ErrCode, const abiRefDataMap*> abiOnDataCB;
typedef abiCallBackT<ErrCode, const struct VideoBridge2dInput*> abiOnBridgeDataCB;
 
}  // namespace ds3d
 
#endif  // _DS3D_COMMON_ABI_DATA_OBJ__H