mirror of
https://github.com/genodelabs/genode.git
synced 2024-12-26 17:01:07 +00:00
c18bee3d5b
Quietly insert forward declaration of a Input::Binding class, and make it a friend of Input::Event and Input::Session_client. This is to allow non-C++ language bindings (Nim) to access private members by providing their own implementation of the Binding class. Fix #2889
86 lines
2.0 KiB
C++
86 lines
2.0 KiB
C++
/*
|
|
* \brief Client-side input session interface
|
|
* \author Norman Feske
|
|
* \date 2006-08-16
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2006-2017 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU Affero General Public License version 3.
|
|
*/
|
|
|
|
#ifndef _INCLUDE__INPUT_SESSION__CLIENT_H_
|
|
#define _INCLUDE__INPUT_SESSION__CLIENT_H_
|
|
|
|
#include <input_session/capability.h>
|
|
#include <input/event.h>
|
|
#include <base/attached_dataspace.h>
|
|
#include <base/rpc_client.h>
|
|
|
|
namespace Input { struct Session_client; }
|
|
|
|
|
|
class Input::Session_client : public Genode::Rpc_client<Session>
|
|
{
|
|
private:
|
|
|
|
Genode::Attached_dataspace _event_ds;
|
|
|
|
Genode::size_t const _max_events =
|
|
_event_ds.size() / sizeof(Input::Event);
|
|
|
|
friend class Input::Binding;
|
|
|
|
public:
|
|
|
|
Session_client(Genode::Region_map &local_rm, Session_capability session)
|
|
:
|
|
Genode::Rpc_client<Session>(session),
|
|
_event_ds(local_rm, call<Rpc_dataspace>())
|
|
{ }
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* \deprecated
|
|
* \noapi
|
|
*/
|
|
explicit Session_client(Session_capability session) __attribute__((deprecated))
|
|
:
|
|
Genode::Rpc_client<Session>(session),
|
|
_event_ds(*Genode::env_deprecated()->rm_session(), call<Rpc_dataspace>())
|
|
{ }
|
|
|
|
Genode::Dataspace_capability dataspace() override {
|
|
return call<Rpc_dataspace>(); }
|
|
|
|
bool pending() const override {
|
|
return call<Rpc_pending>(); }
|
|
|
|
int flush() override {
|
|
return call<Rpc_flush>(); }
|
|
|
|
void sigh(Genode::Signal_context_capability sigh) override {
|
|
call<Rpc_sigh>(sigh); }
|
|
|
|
/**
|
|
* Flush and apply functor to pending events
|
|
*
|
|
* \param func functor in the form of f(Event const &e)
|
|
* \return number of events processed
|
|
*/
|
|
template <typename FUNC>
|
|
void for_each_event(FUNC const &func)
|
|
{
|
|
Genode::size_t const n = Genode::min((Genode::size_t)call<Rpc_flush>(), _max_events);
|
|
|
|
Event const *ev_buf = _event_ds.local_addr<const Event>();
|
|
for (Genode::size_t i = 0; i < n; ++i)
|
|
func(ev_buf[i]);
|
|
}
|
|
};
|
|
|
|
#endif /* _INCLUDE__INPUT_SESSION__CLIENT_H_ */
|