reply_cap_hooks

// vi:set ft=cpp: -*- Mode: C++ -*-
 
#pragma once
 
#include <l4/cxx/result>
#include <l4/re/util/cap_alloc>
 
namespace L4Re { namespace Util {
 
template<typename HOOKS>
class Reply_cap_hooks : public HOOKS
{
public:
  // Implement L4::Ipc_svr::Server_iface
  cxx::Result<L4::Reply_cap> take_reply_cap() noexcept override
  {
    auto next = reply_cap_alloc.alloc();
    if (!next)
      return cxx::Error(-L4_ENOMEM);
 
    auto ret = cxx::move(_reply_cap);
    _reply_cap = cxx::move(next);
    return ret;
  }
 
protected:
  // Required interface for L4::Ipc_svr::Server
  L4::Reply_cap_idx setup_reply_cap() const noexcept
  { return _reply_cap.get(); }
 
private:
  L4::Reply_cap _reply_cap{reply_cap_alloc.alloc()};
};
 
}}