shared_memory_server.hh

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#ifndef __MEM_SHARED_MEMORY_SERVER_HH__
#define __MEM_SHARED_MEMORY_SERVER_HH__
 
#include <memory>
#include <string>
#include <unordered_map>
 
#include "base/pollevent.hh"
#include "base/socket.hh"
#include "params/SharedMemoryServer.hh"
#include "sim/sim_object.hh"
#include "sim/system.hh"
 
namespace gem5
{
namespace memory
{
 
class SharedMemoryServer : public SimObject
{
  public:
    enum class RequestType : int
    {
        kGetPhysRange = 0,
    };
 
    explicit SharedMemoryServer(const SharedMemoryServerParams& params);
    ~SharedMemoryServer();
 
  private:
    class BaseShmPollEvent : public PollEvent
    {
      public:
        BaseShmPollEvent(int fd, SharedMemoryServer* shm_server);
 
        const std::string& name() const;
 
      protected:
        bool tryReadAll(void* buffer, size_t size);
 
        SharedMemoryServer* shmServer;
        std::string eventName;
    };
 
    class ListenSocketEvent : public BaseShmPollEvent
    {
      public:
        using BaseShmPollEvent::BaseShmPollEvent;
        void process(int revent) override;
    };
 
    class ClientSocketEvent : public BaseShmPollEvent
    {
      public:
        using BaseShmPollEvent::BaseShmPollEvent;
        void process(int revent) override;
    };
 
    System* system;
 
    ListenSocketPtr listener;
 
    std::unique_ptr<ListenSocketEvent> listenSocketEvent;
    std::unordered_map<int, std::unique_ptr<ClientSocketEvent>>
        clientSocketEvents;
};
 
} // namespace memory
} // namespace gem5
 
#endif  // __MEM_SHARED_MEMORY_SERVER_HH__