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Allow to use POSIX-compliant disk IO type

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This patch allows user to switch disk IO type between memory mapped files based type (default in libtorrent 2, and seems causing memory issues) and POSIX-compliant type which is more conservative on memory usage.

Co-authored-by: Chocobo1 <Chocobo1@users.noreply.github.com>
Co-authored-by: Vladimir Golovnev (Glassez) <glassez@yandex.ru>

PR #16895.
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Coda 2022-05-11 11:28:06 -07:00 • committed by GitHub
commit e698c09298
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8 changed files with 90 additions and 1 deletions
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27
src/base/bittorrent/session.cpp
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@ -381,6 +381,7 @@ Session::Session(QObject *parent)
, m_diskCacheSize(BITTORRENT_SESSION_KEY(u"DiskCacheSize"_qs), -1)
, m_diskCacheTTL(BITTORRENT_SESSION_KEY(u"DiskCacheTTL"_qs), 60)
, m_diskQueueSize(BITTORRENT_SESSION_KEY(u"DiskQueueSize"_qs), (1024 * 1024))
, m_diskIOType(BITTORRENT_SESSION_KEY(u"DiskIOType"_qs), DiskIOType::Default)
, m_useOSCache(BITTORRENT_SESSION_KEY(u"UseOSCache"_qs), true)
#ifdef Q_OS_WIN
, m_coalesceReadWriteEnabled(BITTORRENT_SESSION_KEY(u"CoalesceReadWrite"_qs), true)
@ -1149,7 +1150,18 @@ void Session::initializeNativeSession()
loadLTSettings(pack);
lt::session_params sessionParams {pack, {}};
#ifdef QBT_USES_LIBTORRENT2
sessionParams.disk_io_constructor = customDiskIOConstructor;
switch (diskIOType())
{
case DiskIOType::Posix:
sessionParams.disk_io_constructor = customPosixDiskIOConstructor;
break;
case DiskIOType::MMap:
sessionParams.disk_io_constructor = customMMapDiskIOConstructor;
break;
default:
sessionParams.disk_io_constructor = customDiskIOConstructor;
break;
}
#endif
m_nativeSession = new lt::session {sessionParams};
@ -3363,6 +3375,19 @@ void Session::setPeerTurnoverInterval(const int val)
configureDeferred();
}
DiskIOType Session::diskIOType() const
{
return m_diskIOType;
}
void Session::setDiskIOType(const DiskIOType type)
{
if (type != m_diskIOType)
{
m_diskIOType = type;
}
}
int Session::requestQueueSize() const
{
return m_requestQueueSize;