d3d983caf9
Several large changes happen in this patch. The FDEntry class is rewritten so that file descriptors now correspond to types: 'File' which is normal file-backed file with the file open on the host machine, 'Pipe' which is a pipe that has been opened on the host machine, and 'Device' which does not have an open file on the host yet acts as a pseudo device with which to issue ioctls. Other types which might be added in the future are directory entries and sockets (off the top of my head). The FDArray class was create to hold most of the file descriptor handling that was stuffed into the Process class. It uses shared pointers and the std::array type to hold the FDEntries mentioned above. The changes to these two classes needed to be propagated out to the rest of the code so there were quite a few changes for that. Also, comments were added where I thought they were needed to help others and extend our DOxygen coverage.
101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
/*
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* Copyright (c) 2016 Advanced Micro Devices, Inc.
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* All rights reserved.
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*
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* For use for simulation and test purposes only
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* Author: Brandon Potter
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*/
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#include "sim/fd_entry.hh"
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#include "sim/serialize.hh"
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void
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FDEntry::serialize(CheckpointOut &cp) const
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{
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SERIALIZE_SCALAR(_closeOnExec);
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}
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void
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FDEntry::unserialize(CheckpointIn &cp)
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{
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UNSERIALIZE_SCALAR(_closeOnExec);
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}
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void
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FileFDEntry::serialize(CheckpointOut &cp) const
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{
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SERIALIZE_SCALAR(_closeOnExec);
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SERIALIZE_SCALAR(_flags);
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SERIALIZE_SCALAR(_fileName);
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SERIALIZE_SCALAR(_fileOffset);
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}
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void
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FileFDEntry::unserialize(CheckpointIn &cp)
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{
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UNSERIALIZE_SCALAR(_closeOnExec);
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UNSERIALIZE_SCALAR(_flags);
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UNSERIALIZE_SCALAR(_fileName);
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UNSERIALIZE_SCALAR(_fileOffset);
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}
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void
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PipeFDEntry::serialize(CheckpointOut &cp) const
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{
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SERIALIZE_SCALAR(_closeOnExec);
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SERIALIZE_SCALAR(_flags);
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//SERIALIZE_SCALAR(_pipeEndType);
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}
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void
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PipeFDEntry::unserialize(CheckpointIn &cp)
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{
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UNSERIALIZE_SCALAR(_closeOnExec);
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UNSERIALIZE_SCALAR(_flags);
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//UNSERIALIZE_SCALAR(_pipeEndType);
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}
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void
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DeviceFDEntry::serialize(CheckpointOut &cp) const
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{
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SERIALIZE_SCALAR(_closeOnExec);
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//SERIALIZE_SCALAR(_driver);
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SERIALIZE_SCALAR(_fileName);
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}
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void
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DeviceFDEntry::unserialize(CheckpointIn &cp)
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{
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UNSERIALIZE_SCALAR(_closeOnExec);
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//UNSERIALIZE_SCALAR(_driver);
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UNSERIALIZE_SCALAR(_fileName);
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}
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