genode/repos/os/include/terminal_session/connection.h
Norman Feske c1b981ede4 Annotate session interfaces with CAP_QUOTA
The new 'CAP_QUOTA' enum value denotes the capability quota to be
transferred from the client to the server at session-creation time.

Issue #2398
2017-05-31 13:16:04 +02:00

78 lines
1.9 KiB
C++

/*
* \brief Connection to Terminal service
* \author Norman Feske
* \date 2011-08-12
*/
/*
* Copyright (C) 2011-2017 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__TERMINAL_SESSION__CONNECTION_H_
#define _INCLUDE__TERMINAL_SESSION__CONNECTION_H_
#include <terminal_session/client.h>
#include <base/connection.h>
namespace Terminal { struct Connection; }
struct Terminal::Connection : Genode::Connection<Session>, Session_client
{
/**
* Wait for connection-established signal
*
* \noapi
*/
static void wait_for_connection(Genode::Capability<Session> cap)
{
using namespace Genode;
/* create signal receiver, just for the single signal */
Signal_context sig_ctx;
Signal_receiver sig_rec;
Signal_context_capability sig_cap = sig_rec.manage(&sig_ctx);
/* register signal handler */
cap.call<Rpc_connected_sigh>(sig_cap);
/* wati for signal */
sig_rec.wait_for_signal();
sig_rec.dissolve(&sig_ctx);
}
/**
* Constructor
*/
Connection(Genode::Env &env, char const *label = "")
:
Genode::Connection<Session>(env, session(env.parent(),
"ram_quota=%ld, cap_quota=%ld, label=\"%s\"",
10*1024, CAP_QUOTA, label)),
Session_client(env.rm(), cap())
{
wait_for_connection(cap());
}
/**
* Constructor
*
* \noapi
* \deprecated Use the constructor with 'Env &' as first
* argument instead
*/
Connection(char const *label = "") __attribute__((deprecated))
:
Genode::Connection<Session>(session("ram_quota=%zd, label=\"%s\"",
2*4096, label)),
Session_client(*Genode::env_deprecated()->rm_session(), cap())
{
wait_for_connection(cap());
}
};
#endif /* _INCLUDE__TERMINAL_SESSION__CONNECTION_H_ */