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Add "Simple pread/pwrite" disk IO type

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PR #21300.
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Hanabishi 2024-10-01 21:58:35 +05:00 • committed by GitHub
parent 7b45566efc
commit b5b34c9ff4
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4 changed files with 12 additions and 1 deletions
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8
src/base/bittorrent/sessionimpl.cpp
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@ -1638,6 +1638,13 @@ void SessionImpl::initializeNativeSession()
#ifdef QBT_USES_LIBTORRENT2
// preserve the same behavior as in earlier libtorrent versions
pack.set_bool(lt::settings_pack::enable_set_file_valid_data, true);
// This is a special case. We use MMap disk IO but tweak it to always fallback to pread/pwrite.
if (diskIOType() == DiskIOType::SimplePreadPwrite)
{
pack.set_int(lt::settings_pack::mmap_file_size_cutoff, std::numeric_limits<int>::max());
pack.set_int(lt::settings_pack::disk_write_mode, lt::settings_pack::mmap_write_mode_t::always_pwrite);
}
#endif
lt::session_params sessionParams {std::move(pack), {}};
@ -1648,6 +1655,7 @@ void SessionImpl::initializeNativeSession()
sessionParams.disk_io_constructor = customPosixDiskIOConstructor;
break;
case DiskIOType::MMap:
case DiskIOType::SimplePreadPwrite:
sessionParams.disk_io_constructor = customMMapDiskIOConstructor;
break;
default: