diff options
Diffstat (limited to 'src/sim/fd_entry.cc')
-rw-r--r-- | src/sim/fd_entry.cc | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/sim/fd_entry.cc b/src/sim/fd_entry.cc new file mode 100644 index 000000000..72975a7a6 --- /dev/null +++ b/src/sim/fd_entry.cc @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2015 Advanced Micro Devices, Inc. + * Copyright (c) 2001-2005 The Regents of The University of Michigan + * + * 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 + * Steve Reinhardt + */ + +#include "base/misc.hh" +#include "fd_entry.hh" + +using namespace std; + +void +FDEntry::serialize(CheckpointOut &cp) const +{ + SERIALIZE_SCALAR(fd); + if (fd != -1) { + SERIALIZE_SCALAR(mode); + SERIALIZE_SCALAR(flags); + SERIALIZE_SCALAR(isPipe); + SERIALIZE_SCALAR(readPipeSource); + SERIALIZE_SCALAR(fileOffset); + SERIALIZE_SCALAR(filename); + } + if (driver) + warn("EmulatedDriver objects do not currently support checkpoints"); +} + +void +FDEntry::unserialize(CheckpointIn &cp) +{ + UNSERIALIZE_SCALAR(fd); + if (fd != -1) { + UNSERIALIZE_SCALAR(mode); + UNSERIALIZE_SCALAR(flags); + UNSERIALIZE_SCALAR(isPipe); + UNSERIALIZE_SCALAR(readPipeSource); + UNSERIALIZE_SCALAR(fileOffset); + UNSERIALIZE_SCALAR(filename); + } + driver = NULL; +} + +bool +FDEntry::isFree() +{ + return (fd == -1 && driver == NULL); +} + +void +FDEntry::set(int sim_fd, const string name, int flags, int mode, bool pipe) +{ + fd = sim_fd; + filename = name; + this->flags = flags; + this->mode = mode; + isPipe = pipe; + fileOffset = 0; + readPipeSource = 0; + driver = NULL; +} + +void +FDEntry::reset() +{ + set(-1, "", 0, 0, false); +} |