116 lines
2.7 KiB
C++
116 lines
2.7 KiB
C++
/*
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* \brief Native types on L4/Fiasco
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* \author Norman Feske
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* \date 2008-07-26
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*/
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/*
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* Copyright (C) 2008-2012 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _INCLUDE__BASE__NATIVE_TYPES_H_
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#define _INCLUDE__BASE__NATIVE_TYPES_H_
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namespace Fiasco {
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#include <l4/sys/types.h>
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/**
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* Return invalid L4 thread ID
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*/
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inline l4_threadid_t invalid_l4_threadid_t() { return L4_INVALID_ID; }
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}
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namespace Genode {
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typedef volatile int Native_lock;
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class Platform_thread;
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typedef Fiasco::l4_threadid_t Native_thread_id;
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struct Native_thread
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{
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Native_thread_id l4id;
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/**
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* Only used in core
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*
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* For 'Thread' objects created within core, 'pt' points to
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* the physical thread object, which is going to be destroyed
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* on destruction of the 'Thread'.
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*/
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Platform_thread *pt;
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};
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inline unsigned long convert_native_thread_id_to_badge(Native_thread_id tid)
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{
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/*
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* Fiasco has no server-defined badges for page-fault messages.
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* Therefore, we have to interpret the sender ID as badge.
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*/
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return tid.raw;
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}
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/**
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* Empty UTCB type expected by the thread library
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*
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* On this kernel, UTCBs are not placed within the the context area. Each
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* thread can request its own UTCB pointer using the kernel interface.
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*/
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typedef struct { } Native_utcb;
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/*
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* On Fiasco, the local_name member of a capability is global
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* to the whole system. Therefore, capabilities are to be
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* created at a central place that prevents id clashes.
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*/
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class Native_capability
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{
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protected:
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Fiasco::l4_threadid_t _tid;
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long _local_name;
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public:
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/**
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* Default constructor
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*/
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Native_capability()
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: _tid(Fiasco::invalid_l4_threadid_t()), _local_name(0) { }
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long local_name() const { return _local_name; }
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Fiasco::l4_threadid_t dst() const { return _tid; }
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bool valid() const { return l4_is_invalid_id(_tid) == 0; }
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/*****************************************************
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** Functions to be used by the Fiasco backend only **
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*****************************************************/
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/**
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* Constructor
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*
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* This constructor can be called to create a Fiasco
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* capability by hand. It must never be used from
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* generic code!
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*/
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Native_capability(Fiasco::l4_threadid_t tid,
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Fiasco::l4_umword_t local_name)
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: _tid(tid), _local_name(local_name) { }
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/**
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* Access raw capability data
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*/
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Fiasco::l4_threadid_t tid() const { return _tid; }
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};
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typedef Fiasco::l4_threadid_t Native_connection_state;
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}
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#endif /* _INCLUDE__BASE__NATIVE_TYPES_H_ */
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