76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
/*
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* \brief Platform-specific type definitions
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* \author Norman Feske
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* \date 2009-10-02
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*/
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/*
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* Copyright (C) 2009-2012 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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#include <base/native_capability.h>
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#include <base/stdint.h>
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namespace Genode {
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typedef volatile int Native_lock;
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struct Native_thread
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{
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addr_t ec_sel; /* NOVA cap selector for execution context */
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addr_t sc_sel; /* NOVA cap selector for scheduling context */
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addr_t rs_sel; /* NOVA cap selector for running semaphore */
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addr_t pd_sel; /* NOVA cap selector of protection domain */
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addr_t exc_pt_sel; /* base of event portal window */
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};
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typedef Native_thread Native_thread_id;
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inline bool operator == (Native_thread_id t1, Native_thread_id t2)
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{
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return (t1.ec_sel == t2.ec_sel) && (t1.rs_sel == t2.rs_sel);
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}
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inline bool operator != (Native_thread_id t1, Native_thread_id t2)
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{
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return (t1.ec_sel != t2.ec_sel) && (t1.rs_sel != t2.rs_sel);
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}
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class Native_utcb
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{
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private:
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/**
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* Size of the NOVA-specific user-level thread-control block
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*/
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enum { UTCB_SIZE = 4096 };
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/**
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* User-level thread control block
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*
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* The UTCB is one 4K page, shared between the kernel and the
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* user process. It is not backed by a dataspace but provided
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* by the kernel.
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*/
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long _utcb[UTCB_SIZE/sizeof(long)];
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};
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struct Cap_dst_policy
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{
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typedef addr_t Dst;
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static bool valid(Dst pt) { return pt != 0; }
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static Dst invalid() { return 0; }
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static void copy(void* dst, Native_capability_tpl<Cap_dst_policy>* src);
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};
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typedef Native_capability_tpl<Cap_dst_policy> Native_capability;
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typedef int Native_connection_state;
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}
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#endif /* _INCLUDE__BASE__NATIVE_TYPES_H_ */
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