1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/libfsserver/lib/pipes/pipe_accessor.cc Thu Apr 15 23:15:17 2021 +0200
1.3 @@ -0,0 +1,64 @@
1.4 +/*
1.5 + * A pipe accessor merely resetting allocated memory for use.
1.6 + *
1.7 + * Copyright (C) 2021 Paul Boddie <paul@boddie.org.uk>
1.8 + *
1.9 + * This program is free software; you can redistribute it and/or
1.10 + * modify it under the terms of the GNU General Public License as
1.11 + * published by the Free Software Foundation; either version 2 of
1.12 + * the License, or (at your option) any later version.
1.13 + *
1.14 + * This program is distributed in the hope that it will be useful,
1.15 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.16 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.17 + * GNU General Public License for more details.
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License
1.20 + * along with this program; if not, write to the Free Software
1.21 + * Foundation, Inc., 51 Franklin Street, Fifth Floor,
1.22 + * Boston, MA 02110-1301, USA
1.23 + */
1.24 +
1.25 +#include "pipe_accessor.h"
1.26 +
1.27 +#include <string.h>
1.28 +
1.29 +PipeAccessor::PipeAccessor()
1.30 +: Accessor(0)
1.31 +{
1.32 +}
1.33 +
1.34 +/* Perform any closing operation on the file. */
1.35 +
1.36 +void PipeAccessor::close()
1.37 +{
1.38 +}
1.39 +
1.40 +/* Perform any opening operation on the file. */
1.41 +
1.42 +void PipeAccessor::open()
1.43 +{
1.44 +}
1.45 +
1.46 +/* Data transfer helper methods. */
1.47 +
1.48 +void PipeAccessor::fill_populated(Flexpage *flexpage)
1.49 +{
1.50 + offset_t filepos = flexpage->base_offset;
1.51 + offset_t addr = flexpage->base_addr;
1.52 +
1.53 + /* Tag the region with file state. */
1.54 +
1.55 + flexpage->region->fill(fileid, filepos);
1.56 +
1.57 + /* File the flexpage with zero. */
1.58 +
1.59 + memset((void *) addr, 0, flexpage->size);
1.60 +}
1.61 +
1.62 +void PipeAccessor::flush_populated(Flexpage *flexpage)
1.63 +{
1.64 + flexpage->region->flush();
1.65 +}
1.66 +
1.67 +// vim: tabstop=4 expandtab shiftwidth=4