116 lines
2.7 KiB
C++
116 lines
2.7 KiB
C++
/*
|
|
* \brief Native types on L4/Fiasco
|
|
* \author Norman Feske
|
|
* \date 2008-07-26
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2008-2011 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__BASE__NATIVE_TYPES_H_
|
|
#define _INCLUDE__BASE__NATIVE_TYPES_H_
|
|
|
|
namespace Fiasco {
|
|
#include <l4/sys/types.h>
|
|
|
|
/**
|
|
* Return invalid L4 thread ID
|
|
*/
|
|
inline l4_threadid_t invalid_l4_threadid_t() { return L4_INVALID_ID; }
|
|
}
|
|
|
|
namespace Genode {
|
|
|
|
typedef volatile int Native_lock;
|
|
|
|
class Platform_thread;
|
|
|
|
typedef Fiasco::l4_threadid_t Native_thread_id;
|
|
|
|
struct Native_thread
|
|
{
|
|
Native_thread_id l4id;
|
|
|
|
/**
|
|
* Only used in core
|
|
*
|
|
* For 'Thread' objects created within core, 'pt' points to
|
|
* the physical thread object, which is going to be destroyed
|
|
* on destruction of the 'Thread'.
|
|
*/
|
|
Platform_thread *pt;
|
|
};
|
|
|
|
inline unsigned long convert_native_thread_id_to_badge(Native_thread_id tid)
|
|
{
|
|
/*
|
|
* Fiasco has no server-defined badges for page-fault messages.
|
|
* Therefore, we have to interpret the sender ID as badge.
|
|
*/
|
|
return tid.raw;
|
|
}
|
|
|
|
/**
|
|
* Empty UTCB type expected by the thread library
|
|
*
|
|
* On this kernel, UTCBs are not placed within the the context area. Each
|
|
* thread can request its own UTCB pointer using the kernel interface.
|
|
*/
|
|
typedef struct { } Native_utcb;
|
|
|
|
/*
|
|
* On Fiasco, the local_name member of a capability is global
|
|
* to the whole system. Therefore, capabilities are to be
|
|
* created at a central place that prevents id clashes.
|
|
*/
|
|
class Native_capability
|
|
{
|
|
protected:
|
|
|
|
Fiasco::l4_threadid_t _tid;
|
|
long _local_name;
|
|
|
|
public:
|
|
|
|
/**
|
|
* Default constructor
|
|
*/
|
|
Native_capability()
|
|
: _tid(Fiasco::invalid_l4_threadid_t()), _local_name(0) { }
|
|
|
|
long local_name() const { return _local_name; }
|
|
Fiasco::l4_threadid_t dst() const { return _tid; }
|
|
|
|
bool valid() const { return l4_is_invalid_id(_tid) == 0; }
|
|
|
|
|
|
/*****************************************************
|
|
** Functions to be used by the Fiasco backend only **
|
|
*****************************************************/
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* This constructor can be called to create a Fiasco
|
|
* capability by hand. It must never be used from
|
|
* generic code!
|
|
*/
|
|
Native_capability(Fiasco::l4_threadid_t tid,
|
|
Fiasco::l4_umword_t local_name)
|
|
: _tid(tid), _local_name(local_name) { }
|
|
|
|
/**
|
|
* Access raw capability data
|
|
*/
|
|
Fiasco::l4_threadid_t tid() const { return _tid; }
|
|
};
|
|
|
|
typedef Fiasco::l4_threadid_t Native_connection_state;
|
|
}
|
|
|
|
#endif /* _INCLUDE__BASE__NATIVE_TYPES_H_ */
|