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arvidn
123 lines
3.5 KiB
C++
123 lines
3.5 KiB
C++
/*
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Copyright (c) 2016, 2019-2020, Arvid Norberg
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Copyright (c) 2019, Steven Siloti
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All rights reserved.
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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
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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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 OWNER 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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#include "test.hpp"
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#include "libtorrent/aux_/mmap.hpp"
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#include <fstream>
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#include "libtorrent/aux_/disable_warnings_push.hpp"
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#include <boost/range/combine.hpp>
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#include "libtorrent/aux_/disable_warnings_pop.hpp"
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#if TORRENT_HAVE_MMAP || TORRENT_HAVE_MAP_VIEW_OF_FILE
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using namespace lt;
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using namespace lt::aux;
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namespace {
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std::vector<char> filled_buffer(std::ptrdiff_t const size)
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{
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std::vector<char> buf;
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buf.resize(static_cast<std::size_t>(size));
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std::uint8_t cnt = 0;
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std::generate(buf.begin(), buf.end()
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, [&cnt](){ return static_cast<char>(cnt++); });
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return buf;
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}
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}
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TORRENT_TEST(mmap_read)
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{
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std::vector<char> buf = filled_buffer(1024 * 1024);
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{
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std::ofstream file("test_file1", std::ios::binary);
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file.write(buf.data(), std::streamsize(buf.size()));
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}
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auto m = std::make_shared<file_mapping>(aux::file_handle("test_file1"
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, std::int64_t(buf.size()), open_mode::read_only)
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, open_mode::read_only, buf.size()
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#if TORRENT_HAVE_MAP_VIEW_OF_FILE
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, std::make_shared<std::mutex>()
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#endif
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);
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TORRENT_ASSERT(m->has_memory_map());
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for (auto const i : boost::combine(m->range(), buf))
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{
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if (boost::get<0>(i) != boost::get<1>(i)) TEST_ERROR("mmap view mismatching");
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}
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}
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TORRENT_TEST(mmap_write)
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{
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std::vector<char> buf = filled_buffer(1024 * 1024);
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{
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auto m = std::make_shared<file_mapping>(aux::file_handle("test_file2"
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, std::int64_t(buf.size())
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, open_mode::write | open_mode::truncate)
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, open_mode::write | open_mode::truncate, buf.size()
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#if TORRENT_HAVE_MAP_VIEW_OF_FILE
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, std::make_shared<std::mutex>()
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#endif
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);
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auto range = m->range();
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std::copy(buf.begin(), buf.end(), range.begin());
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}
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std::ifstream file("test_file2", std::ios_base::binary);
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std::vector<char> buf2;
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buf2.resize(buf.size());
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file.read(buf2.data(), std::streamsize(buf2.size()));
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TEST_EQUAL(file.gcount(), std::streamsize(buf.size()));
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for (auto const i : boost::combine(buf2, buf))
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{
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if (boost::get<0>(i) != boost::get<1>(i)) TEST_ERROR("mmap view mismatching");
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}
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}
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#else
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TORRENT_TEST(dummy) {}
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#endif
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