Channel.hpp

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#ifndef DW_FRAMEWORK_CHANNEL_HPP_
#define DW_FRAMEWORK_CHANNEL_HPP_
 
#include "ChannelParameters.hpp"
#include "IChannelPacket.hpp"
 
#include <dw/core/context/Context.h>
#include <dwcgf/Exception.hpp>
#include <dw/core/language/Function.hpp>
#include <dw/core/container/BaseString.hpp>
 
#include <memory>
#include <mutex>
#include <string>
 
namespace dw
{
namespace framework
{
 
static constexpr dwTime_t CHN_WAIT_TIMEOUT_US = 50'000'000;
 
class ChannelObject
{
public:
    virtual ~ChannelObject() = default;
 
    class SyncClient
    {
    public:
        virtual void getSyncObjs(dw::core::span<NvSciSyncObj>& syncObjs) = 0;
    };
 
    class SyncWaiter : public SyncClient
    {
    public:
        virtual void getWaitFences(void* data, dw::core::span<NvSciSyncFence>& waitFences) = 0;
    };
 
    class SyncSignaler : public SyncClient
    {
    public:
        virtual void setSignalFences(void* data, dw::core::span<const NvSciSyncFence> postFences) = 0;
    };
 
    class PacketPool
    {
    public:
        SyncWaiter& getSyncWaiter()
        {
            auto* waiter = dynamic_cast<SyncWaiter*>(this);
            if (waiter == nullptr)
            {
                throw Exception(DW_BAD_CAST, "ChannelObject::PacketPool: not a SyncWaiter");
            }
            return *waiter;
        }
 
        SyncSignaler& getSyncSignaler()
        {
            auto* signaler = dynamic_cast<SyncSignaler*>(this);
            if (signaler == nullptr)
            {
                throw Exception(DW_BAD_CAST, "ChannelObject::PacketPool: not a SyncSignaler");
            }
            return *signaler;
        }
 
        virtual dwStatus wait(dwTime_t timeout) = 0;
 
        using OnDataReady = dw::core::Function<void()>;
 
        virtual void setOnDataReady(void* opaque, OnDataReady onDataReady) = 0;
    };
 
    class Producer : public PacketPool
    {
    public:
        virtual dwStatus get(GenericData* data) = 0;
        virtual dwStatus send(void* data) = 0;
    };
 
    class Consumer : public PacketPool
    {
    public:
        virtual dwStatus recv(GenericData* data) = 0;
        virtual dwStatus release(void* data) = 0;
    };
 
    virtual Producer* getProducer(GenericDataReference ref) = 0;
 
    virtual Consumer* getConsumer(GenericDataReference ref) = 0;
 
    virtual bool hasClients() const = 0;
 
    virtual bool isConnected() const = 0;
 
    virtual dwStatus connect(dwTime_t timeout) = 0;
 
    virtual const ChannelParams& getParams() const = 0;
};
 
} // namespace framework
} // namespace dw
 
#endif // DW_FRAMEWORK_CHANNEL_HPP_