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first step to remove recursion in bandwidth channel

This commit is contained in:
Arvid Norberg 2011-04-21 03:13:53 +00:00
parent 86d52bbe13
commit 573a291495
4 changed files with 33 additions and 19 deletions
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4
include/libtorrent/bandwidth_manager.hpp
View File

@ -74,7 +74,9 @@ struct TORRENT_EXPORT bandwidth_manager
// non prioritized means that, if there's a line for bandwidth,
// others will cut in front of the non-prioritized peers.
// this is used by web seeds
void request_bandwidth(intrusive_ptr<bandwidth_socket> const& peer
// returns the number of bytes to assign to the peer, or 0
// if the peer's 'assign_bandwidth' callback will be called later
int request_bandwidth(intrusive_ptr<bandwidth_socket> const& peer
, int blk, int priority
, bandwidth_channel* chan1 = 0
, bandwidth_channel* chan2 = 0

4
include/libtorrent/peer_connection.hpp
View File

@ -732,12 +732,12 @@ namespace libtorrent
void on_disk_read_complete(int ret, disk_io_job const& j, peer_request r);
void on_disk_write_complete(int ret, disk_io_job const& j
, peer_request r, boost::shared_ptr<torrent> t);
void request_upload_bandwidth(
int request_upload_bandwidth(
bandwidth_channel* bwc1
, bandwidth_channel* bwc2 = 0
, bandwidth_channel* bwc3 = 0
, bandwidth_channel* bwc4 = 0);
void request_download_bandwidth(
int request_download_bandwidth(
bandwidth_channel* bwc1
, bandwidth_channel* bwc2 = 0
, bandwidth_channel* bwc3 = 0

8
src/bandwidth_manager.cpp
View File

@ -84,7 +84,7 @@ namespace libtorrent
// non prioritized means that, if there's a line for bandwidth,
// others will cut in front of the non-prioritized peers.
// this is used by web seeds
void bandwidth_manager::request_bandwidth(boost::intrusive_ptr<bandwidth_socket> const& peer
int bandwidth_manager::request_bandwidth(boost::intrusive_ptr<bandwidth_socket> const& peer
, int blk, int priority
, bandwidth_channel* chan1
, bandwidth_channel* chan2
@ -94,7 +94,7 @@ namespace libtorrent
)
{
INVARIANT_CHECK;
if (m_abort) return;
if (m_abort) return 0;
TORRENT_ASSERT(blk > 0);
TORRENT_ASSERT(priority > 0);
@ -113,11 +113,11 @@ namespace libtorrent
// bandwidth channels, or it doesn't belong to any
// channels. There's no point in adding it to
// the queue, just satisfy the request immediately
bwr.peer->assign_bandwidth(m_channel, blk);
return;
return blk;
}
m_queued_bytes += blk;
m_queue.push_back(bwr);
return 0;
}
#ifdef TORRENT_DEBUG

36
src/peer_connection.cpp
View File

@ -2472,7 +2472,7 @@ namespace libtorrent
#endif
// in case the outstanding bytes just dropped down
// to allow to receive more data
setup_receive();
setup_receive(read_async);
piece_block block_finished(p.piece, p.start / t->block_size());
@ -4377,7 +4377,7 @@ namespace libtorrent
}
}
void peer_connection::request_upload_bandwidth(
int peer_connection::request_upload_bandwidth(
bandwidth_channel* bwc1
, bandwidth_channel* bwc2
, bandwidth_channel* bwc3
@ -4424,14 +4424,14 @@ namespace libtorrent
, (bwc4?bwc4->throttle():0)
, m_ignore_bandwidth_limits);
#endif
m_ses.m_upload_rate.request_bandwidth(self()
return m_ses.m_upload_rate.request_bandwidth(self()
, (std::max)(m_send_buffer.size(), m_statistics.upload_rate() * 2
/ (1000 / m_ses.m_settings.tick_interval))
, priority
, bwc1, bwc2, bwc3, bwc4);
}
void peer_connection::request_download_bandwidth(
int peer_connection::request_download_bandwidth(
bandwidth_channel* bwc1
, bandwidth_channel* bwc2
, bandwidth_channel* bwc3
@ -4459,7 +4459,7 @@ namespace libtorrent
TORRENT_ASSERT(m_outstanding_bytes >= 0);
TORRENT_ASSERT(m_channel_state[download_channel] != peer_info::bw_disk);
m_channel_state[download_channel] = peer_info::bw_limit;
m_ses.m_download_rate.request_bandwidth(self()
return m_ses.m_download_rate.request_bandwidth(self()
, (std::max)((std::max)(m_outstanding_bytes, m_packet_size - m_recv_pos) + 30
, m_statistics.download_rate() * 2
/ (1000 / m_ses.m_settings.tick_interval))
@ -4478,6 +4478,7 @@ namespace libtorrent
&& !m_connecting
&& t)
{
int ret = 0;
if (!m_ignore_bandwidth_limits)
{
bool utp = m_socket->get<utp_stream>() != 0;
@ -4485,7 +4486,7 @@ namespace libtorrent
// in this case, we have data to send, but no
// bandwidth. So, we simply request bandwidth
// from the bandwidth manager
request_upload_bandwidth(
ret = request_upload_bandwidth(
(m_ses.m_settings.rate_limit_utp || !utp) ? &m_ses.m_upload_channel : 0
, &t->m_bandwidth_channel[upload_channel]
, &m_bandwidth_channel[upload_channel]
@ -4498,10 +4499,15 @@ namespace libtorrent
// instead we rate limit ourself against the special
// global bandwidth channel for local peers, which defaults
// to unthrottled
request_upload_bandwidth(&m_ses.m_local_upload_channel
ret = request_upload_bandwidth(&m_ses.m_local_upload_channel
, &m_bandwidth_channel[upload_channel]);
}
return;
if (ret == 0) return;
// we were just assigned 'ret' quota
TORRENT_ASSERT(ret > 0);
m_quota[upload_channel] += ret;
m_channel_state[upload_channel] = peer_info::bw_idle;
}
int quota_left = m_quota[upload_channel];
@ -4589,7 +4595,7 @@ namespace libtorrent
m_ses.dec_disk_queue(download_channel);
m_channel_state[download_channel] = peer_info::bw_idle;
setup_receive();
setup_receive(read_async);
}
void peer_connection::setup_receive(sync_t sync)
@ -4604,6 +4610,7 @@ namespace libtorrent
&& !m_connecting
&& t)
{
int ret = 0;
if (!m_ignore_bandwidth_limits)
{
bool utp = m_socket->get<utp_stream>() != 0;
@ -4611,7 +4618,7 @@ namespace libtorrent
// in this case, we have outstanding data to
// receive, but no bandwidth quota. So, we simply
// request bandwidth from the bandwidth manager
request_download_bandwidth(
ret = request_download_bandwidth(
(m_ses.m_settings.rate_limit_utp || !utp) ? &m_ses.m_download_channel : 0
, &t->m_bandwidth_channel[download_channel]
, &m_bandwidth_channel[download_channel]
@ -4624,10 +4631,15 @@ namespace libtorrent
// instead we rate limit ourself against the special
// global bandwidth channel for local peers, which defaults
// to unthrottled
request_download_bandwidth(&m_ses.m_local_download_channel
ret = request_download_bandwidth(&m_ses.m_local_download_channel
, &m_bandwidth_channel[download_channel]);
}
return;
if (ret == 0) return;
// we were just assigned 'ret' quota
TORRENT_ASSERT(ret > 0);
m_quota[download_channel] += ret;
m_channel_state[download_channel] = peer_info::bw_idle;
}
if (!can_read(&m_channel_state[download_channel]))