ISharedBuffer.h

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 *
 * Copyright (C) 2022 NETINT Technologies
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/*!*****************************************************************************
 *  \file   ISharedBuffer.h
 *
 *  \brief  Public definitions related to resource management of NETINT video
 *          processing devices on Android
 *******************************************************************************/
 
#ifndef ISHAREDBUFFER_H_
#define ISHAREDBUFFER_H_
 
#include <utils/RefBase.h>
#include <binder/IInterface.h>
#include <binder/Parcel.h>
#include <utils/String8.h>
 
#define SHARED_BUFFER_SERVICE "net.int.SharedBuffer"
#define STR_BUFFER_LEN 32
 
using namespace android;
using namespace std;
 
class ISharedBuffer : public IInterface {
  public:
    DECLARE_META_INTERFACE(SharedBuffer);
    /*!*************************************************************************
     *  \brief   Get file descripter by using android net.int.SharedBuffer service.
     *
     *  \param[in] name    The name of the share mem
     *
     *  \return      Get fd (> 0) , < 0 otherwise
     *
     **************************************************************************/
    virtual int getFd(String8 &name) = 0;
    /*!*************************************************************************
     *  \brief  Set file descripter with the name of the share mem by using android net.int.SharedBuffer service.
     *
     *  \param[in] name    The name of the share mem
     *
     *  \return Get fd (> 0) , < 0 otherwise
     *
     **************************************************************************/
    virtual int setFd(String8 &param, int32_t fd) = 0;
};
 
class BnSharedBuffer : public BnInterface<ISharedBuffer> {
  public:
    /*!*************************************************************************
     *  \brief  transmit the data between binder clint and server.
     *
     *  \param[in] code    The funtion identify
     *  \param[in] data    The parcel take the data of the shm
     *  \param[in] reply   The parcel take the return data of the shm
     *  \param[in] flags   always 0
     *
     *  \return success status_t (> 0) , < 0 otherwise
     *
     **************************************************************************/
    virtual status_t onTransact(uint32_t code, const Parcel &data,
                                Parcel *reply, uint32_t flags = 0);
};
 
#endif   // ISHAREDBUFFER_H_