gem5/src/sim/vptr.hh
Brandon Potter a928a438b8 style: [patch 3/22] reduce include dependencies in some headers
Used cppclean to help identify useless includes and removed them. This
involved erroneously included headers, but also cases where forward
declarations could have been used rather than a full include.
2016-11-09 14:27:40 -06:00

136 lines
3.1 KiB
C++

/*
* Copyright (c) 2004-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Nathan Binkert
*/
#ifndef __ARCH_ALPHA_VPTR_HH__
#define __ARCH_ALPHA_VPTR_HH__
#include "mem/fs_translating_port_proxy.hh"
class ThreadContext;
template <class T>
class VPtr
{
public:
typedef T Type;
protected:
ThreadContext *tc;
Addr ptr;
Addr buffer[(sizeof(T)-1)/sizeof(Addr) + 1];
public:
explicit VPtr(ThreadContext *_tc, Addr p = 0)
: tc(_tc), ptr(p)
{
refresh();
}
template <class U>
VPtr(const VPtr<U> &vp)
: tc(vp.tc), ptr(vp.ptr)
{
refresh();
}
~VPtr()
{}
void
refresh()
{
if (!ptr)
return;
FSTranslatingPortProxy &proxy = tc->getVirtProxy();
proxy.readBlob(ptr, buffer, sizeof(T));
}
bool
operator!() const
{
return ptr == 0;
}
VPtr<T>
operator+(int offset)
{
return VPtr<T>(tc, ptr + offset);
}
const VPtr<T> &
operator+=(int offset)
{
ptr += offset;
refresh();
return *this;
}
const VPtr<T> &
operator=(Addr p)
{
ptr = p;
refresh();
return *this;
}
template <class U>
const VPtr<T> &
operator=(const VPtr<U> &vp)
{
tc = vp.tc;
ptr = vp.ptr;
refresh();
return *this;
}
operator T *()
{
return (T *)buffer;
}
T *
operator->()
{
return (T *)buffer;
}
T &
operator*()
{
return *(T *)buffer;
}
};
#endif // __ARCH_ALPHA_VPTR_HH__