FM / util

/srv/osrm/osrm-backend/include/util

Name	Size	Mode	Actions
guidance/	-	0755	rm
alias.hpp	6870	0644	edit dl rm
assert.hpp	1964	0644	edit dl rm
attributes.hpp	357	0644	edit dl rm
bearing.hpp	3964	0644	edit dl rm
bit_range.hpp	2950	0644	edit dl rm
cheap_ruler.hpp	2124	0644	edit dl rm
concurrent_id_map.hpp	2148	0644	edit dl rm
conditional_restrictions.hpp	627	0644	edit dl rm
connectivity_checksum.hpp	1931	0644	edit dl rm
coordinate.hpp	9244	0644	edit dl rm
coordinate_calculation.hpp	16297	0644	edit dl rm
deallocating_vector.hpp	11205	0644	edit dl rm
debug.hpp	5958	0644	edit dl rm
dist_table_wrapper.hpp	2299	0644	edit dl rm
dynamic_graph.hpp	15951	0644	edit dl rm
exception.hpp	5126	0644	edit dl rm
exception_utils.hpp	609	0644	edit dl rm
exclude_flag.hpp	975	0644	edit dl rm
filtered_graph.hpp	5402	0644	edit dl rm
filtered_integer_range.hpp	3097	0644	edit dl rm
fingerprint.hpp	1166	0644	edit dl rm
for_each_indexed.hpp	634	0644	edit dl rm
for_each_pair.hpp	990	0644	edit dl rm
for_each_range.hpp	477	0644	edit dl rm
geojson_debug_logger.hpp	6330	0644	edit dl rm
geojson_debug_policies.hpp	1810	0644	edit dl rm
geojson_debug_policy_toolkit.hpp	3258	0644	edit dl rm
geojson_validation.hpp	2899	0644	edit dl rm
graph_traits.hpp	1245	0644	edit dl rm
graph_utils.hpp	3141	0644	edit dl rm
group_by.hpp	722	0644	edit dl rm
hilbert_value.hpp	3010	0644	edit dl rm
indexed_data.hpp	15039	0644	edit dl rm
integer_range.hpp	3286	0644	edit dl rm
isatty.hpp	610	0644	edit dl rm
json_container.hpp	3181	0644	edit dl rm
json_deep_compare.hpp	4732	0644	edit dl rm
json_renderer.hpp	4160	0644	edit dl rm
json_util.hpp	544	0644	edit dl rm
log.hpp	2187	0644	edit dl rm
lua_util.hpp	891	0644	edit dl rm
matrix_graph_wrapper.hpp	1294	0644	edit dl rm
meminfo.hpp	660	0644	edit dl rm
mmap_file.hpp	2776	0644	edit dl rm
mmap_tar.hpp	1007	0644	edit dl rm
msb.hpp	1178	0644	edit dl rm
node_based_graph.hpp	3530	0644	edit dl rm
opening_hours.hpp	8338	0644	edit dl rm
packed_vector.hpp	21691	0644	edit dl rm
percent.hpp	2106	0644	edit dl rm
permutation.hpp	1991	0644	edit dl rm
query_heap.hpp	10205	0644	edit dl rm
range_table.hpp	7119	0644	edit dl rm
rectangle.hpp	5900	0644	edit dl rm
serialization.hpp	5902	0644	edit dl rm
static_assert.hpp	640	0644	edit dl rm
static_graph.hpp	10702	0644	edit dl rm
static_rtree.hpp	34147	0644	edit dl rm
std_hash.hpp	1035	0644	edit dl rm
string_util.hpp	3400	0644	edit dl rm
tarjan_scc.hpp	6646	0644	edit dl rm
timed_histogram.hpp	2576	0644	edit dl rm
timezones.hpp	1417	0644	edit dl rm
timing_util.hpp	1485	0644	edit dl rm
to_osm_link.hpp	694	0644	edit dl rm
trigonometry_table.hpp	35906	0644	edit dl rm
typedefs.hpp	7627	0644	edit dl rm
vector_tile.hpp	303	0644	edit dl rm
vector_view.hpp	8000	0644	edit dl rm
version.hpp.in	406	0644	edit dl rm
viewport.hpp	1579	0644	edit dl rm
web_mercator.hpp	6480	0644	edit dl rm
xor_fast_hash.hpp	1797	0644	edit dl rm
xor_fast_hash_storage.hpp	2195	0644	edit dl rm

Edit: /srv/osrm/osrm-backend/include/util/mmap_file.hpp (2776B)

#ifndef OSRM_UTIL_MMAP_FILE_HPP
#define OSRM_UTIL_MMAP_FILE_HPP

#include "util/exception.hpp"
#include "util/exception_utils.hpp"
#include "util/vector_view.hpp"

#include <boost/filesystem/path.hpp>
#include <boost/iostreams/device/mapped_file.hpp>

namespace osrm::util
{

namespace detail
{
template <typename T, typename MmapContainerT>
util::vector_view<T> mmapFile(const boost::filesystem::path &file, MmapContainerT &mmap_container)
{
    try
    {
        mmap_container.open(file);
        std::size_t num_objects = mmap_container.size() / sizeof(T);
        auto data_ptr = mmap_container.data();
        BOOST_ASSERT(reinterpret_cast<uintptr_t>(data_ptr) % alignof(T) == 0);
        return util::vector_view<T>(reinterpret_cast<T *>(data_ptr), num_objects);
    }
    catch (const std::exception &exc)
    {
        throw exception(
            boost::str(boost::format("File %1% mapping failed: %2%") % file % exc.what()) +
            SOURCE_REF);
    }
}

template <typename T, typename MmapContainerT>
util::vector_view<T> mmapFile(const boost::filesystem::path &file,
                              MmapContainerT &mmap_container,
                              const std::size_t size)
{
    try
    {
        // Create a new file with the given size in bytes
        boost::iostreams::mapped_file_params params;
        params.path = file.string();
        params.flags = boost::iostreams::mapped_file::readwrite;
        params.new_file_size = size;
        mmap_container.open(params);

std::size_t num_objects = size / sizeof(T);
        auto data_ptr = mmap_container.data();
        BOOST_ASSERT(reinterpret_cast<uintptr_t>(data_ptr) % alignof(T) == 0);
        return util::vector_view<T>(reinterpret_cast<T *>(data_ptr), num_objects);
    }
    catch (const std::exception &exc)
    {
        throw exception(
            boost::str(boost::format("File %1% mapping failed: %2%") % file % exc.what()) +
            SOURCE_REF);
    }
}
} // namespace detail

template <typename T>
util::vector_view<const T> mmapFile(const boost::filesystem::path &file,
                                    boost::iostreams::mapped_file_source &mmap_container)
{
    return detail::mmapFile<const T>(file, mmap_container);
}

template <typename T>
util::vector_view<T> mmapFile(const boost::filesystem::path &file,
                              boost::iostreams::mapped_file &mmap_container)
{
    return detail::mmapFile<T>(file, mmap_container);
}

template <typename T>
util::vector_view<T> mmapFile(const boost::filesystem::path &file,
                              boost::iostreams::mapped_file &mmap_container,
                              std::size_t size)
{
    return detail::mmapFile<T>(file, mmap_container, size);
}
} // namespace osrm::util

#endif

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