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support sending suggest messages based on what's in the read cache. support 'explicit read cache'

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This commit is contained in:
Arvid Norberg
2010-01-15 16:45:42 +00:00
parent ef41d38c34
commit c9b594fde1
21 changed files with 460 additions and 64 deletions
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39
src/session_impl.cpp
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@@ -219,6 +219,7 @@ namespace aux {
TORRENT_SETTING(integer, num_want)
TORRENT_SETTING(integer, initial_picker_threshold)
TORRENT_SETTING(integer, allowed_fast_set_size)
TORRENT_SETTING(integer, suggest_mode)
TORRENT_SETTING(integer, max_queued_disk_bytes)
TORRENT_SETTING(integer, handshake_timeout)
#ifndef TORRENT_DISABLE_DHT
@@ -234,6 +235,7 @@ namespace aux {
TORRENT_SETTING(integer, cache_buffer_chunk_size)
TORRENT_SETTING(integer, cache_expiry)
TORRENT_SETTING(boolean, use_read_cache)
TORRENT_SETTING(boolean, explicit_read_cache)
TORRENT_SETTING(integer, disk_io_write_mode)
TORRENT_SETTING(integer, disk_io_read_mode)
TORRENT_SETTING(boolean, coalesce_reads)
@@ -425,6 +427,8 @@ namespace aux {
, m_optimistic_unchoke_time_scaler(0)
, m_disconnect_time_scaler(90)
, m_auto_scrape_time_scaler(180)
, m_next_explicit_cache_torrent(0)
, m_cache_rotation_timer(0)
, m_incoming_connection(false)
, m_created(time_now_hires())
, m_last_tick(m_created)
@@ -1008,6 +1012,7 @@ namespace aux {
|| m_settings.coalesce_reads != s.coalesce_reads
|| m_settings.max_queued_disk_bytes != s.max_queued_disk_bytes
|| m_settings.disable_hash_checks != s.disable_hash_checks
|| m_settings.explicit_read_cache != s.explicit_read_cache
#ifndef TORRENT_DISABLE_MLOCK
|| m_settings.lock_disk_cache != s.lock_disk_cache
#endif
@@ -1873,6 +1878,40 @@ namespace aux {
}
}
// --------------------------------------------------------------
// refresh explicit disk read cache
// --------------------------------------------------------------
--m_cache_rotation_timer;
if (m_settings.explicit_read_cache
&& m_cache_rotation_timer <= 0)
{
m_cache_rotation_timer = m_settings.explicit_cache_interval;
torrent_map::iterator least_recently_refreshed = m_torrents.begin();
if (m_next_explicit_cache_torrent >= m_torrents.size())
m_next_explicit_cache_torrent = 0;
std::advance(least_recently_refreshed, m_next_explicit_cache_torrent);
// how many blocks does this torrent get?
int cache_size = (std::max)(0, m_settings.cache_size * 9 / 10);
if (m_connections.empty())
{
// if we don't have any connections at all, split the
// cache evenly across all torrents
cache_size = cache_size / m_torrents.size();
}
else
{
cache_size = cache_size * least_recently_refreshed->second->num_peers()
/ m_connections.size();
}
least_recently_refreshed->second->refresh_explicit_cache(cache_size);
++m_next_explicit_cache_torrent;
}
// --------------------------------------------------------------
// connect new peers
// --------------------------------------------------------------