genode/repos/base/include/rom_session/connection.h
Norman Feske a7f40b24ca Warn about the use of deprecated env() function
This patch enables warnings if one of the deprecate functions that rely
in the implicit use of the global Genode::env() accessor are called.

For the time being, some places within the base framework continue
to rely on the global function while omitting the warning by calling
'env_deprecated' instead of 'env'.

Issue #1987
2017-01-13 13:07:13 +01:00

102 lines
2.5 KiB
C++

/*
* \brief Connection to ROM file service
* \author Norman Feske
* \date 2008-08-22
*/
/*
* Copyright (C) 2008-2016 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _INCLUDE__ROM_SESSION__CONNECTION_H_
#define _INCLUDE__ROM_SESSION__CONNECTION_H_
#include <rom_session/client.h>
#include <base/connection.h>
#include <base/log.h>
namespace Genode { class Rom_connection; }
class Genode::Rom_connection : public Connection<Rom_session>,
public Rom_session_client
{
public:
class Rom_connection_failed : public Parent::Exception { };
enum { RAM_QUOTA = 4096UL };
private:
Rom_session_capability _session(Parent &parent, char const *label)
{
return session("ram_quota=%ld, label=\"%s\"", RAM_QUOTA, label);
}
public:
/**
* Constructor
*
* \param label request label and name of ROM module
*
* \throw Rom_connection_failed
*/
Rom_connection(Env &env, const char *label)
try :
Connection<Rom_session>(env, _session(env.parent(), label)),
Rom_session_client(cap())
{ }
catch (...) {
error("Could not open ROM session for \"", label, "\"");
throw Rom_connection_failed();
}
/**
* Constructor
*
* \noapi
* \deprecated Use the constructor with 'Env &' as first
* argument instead
*/
Rom_connection(const char *label) __attribute__((deprecated))
try :
Connection<Rom_session>(_session(*env_deprecated()->parent(), label)),
Rom_session_client(cap())
{ }
catch (...) {
error("Could not open ROM session for \"", label, "\"");
throw Rom_connection_failed();
}
/**
* Constructor
*
* \noapi
* \deprecated Use the constructor with 'Env &' as first
* argument instead
*
* This version is deliberately used by functions that are marked as
* deprecated. If such a function called directly the
* __attribute__((deprecate)) version, we would always get a warning,
* even if the outer deprecated function is not called.
*
* It will be removed as soon as they are gone.
*/
Rom_connection(bool, const char *label)
try :
Connection<Rom_session>(_session(*env_deprecated()->parent(), label)),
Rom_session_client(cap())
{ }
catch (...) {
error("Could not open ROM session for \"", label, "\"");
throw Rom_connection_failed();
}
};
#endif /* _INCLUDE__ROM_SESSION__CONNECTION_H_ */