patches/rtorrent-02-event-ports.diff
changeset 1152 24f4e428f2d0
child 1248 9f6e7108cd7f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/patches/rtorrent-02-event-ports.diff	Sat May 24 09:11:53 2008 +0000
@@ -0,0 +1,820 @@
+diff -urN rtorrent-0.8.2.orig/src/core/Makefile.am rtorrent-0.8.2/src/core/Makefile.am
+--- rtorrent-0.8.2.orig/src/core/Makefile.am	2008-05-07 08:19:11.000000000 -0400
++++ rtorrent-0.8.2/src/core/Makefile.am	2008-05-24 04:58:48.995508910 -0400
+@@ -26,6 +26,8 @@
+ 	poll_manager.h \
+ 	poll_manager_epoll.cc \
+ 	poll_manager_epoll.h \
++	poll_manager_ports.cc \
++	poll_manager_ports.h \
+ 	poll_manager_kqueue.cc \
+ 	poll_manager_kqueue.h \
+ 	poll_manager_select.cc \
+diff -urN rtorrent-0.8.2.orig/src/core/Makefile.am.orig rtorrent-0.8.2/src/core/Makefile.am.orig
+--- rtorrent-0.8.2.orig/src/core/Makefile.am.orig	1969-12-31 19:00:00.000000000 -0500
++++ rtorrent-0.8.2/src/core/Makefile.am.orig	2008-05-07 08:19:11.000000000 -0400
+@@ -0,0 +1,40 @@
++noinst_LIBRARIES = libsub_core.a
++
++libsub_core_a_SOURCES = \
++	curl_get.cc \
++	curl_get.h \
++	curl_stack.cc \
++	curl_stack.h \
++	dht_manager.cc \
++	dht_manager.h \
++	download.cc \
++	download.h \
++	download_factory.cc \
++	download_factory.h \
++	download_list.cc \
++	download_list.h \
++	download_slot_map.h \
++	download_store.cc \
++	download_store.h \
++	http_queue.cc \
++	http_queue.h \
++	log.cc \
++	log.h \
++	manager.cc \
++	manager.h \
++	poll_manager.cc \
++	poll_manager.h \
++	poll_manager_epoll.cc \
++	poll_manager_epoll.h \
++	poll_manager_kqueue.cc \
++	poll_manager_kqueue.h \
++	poll_manager_select.cc \
++	poll_manager_select.h \
++	scheduler.cc \
++	scheduler.h \
++	view.cc \
++	view.h \
++	view_manager.cc \
++	view_manager.h
++
++INCLUDES = -I$(srcdir) -I$(srcdir)/.. -I$(top_srcdir)
+diff -urN rtorrent-0.8.2.orig/src/core/manager.cc rtorrent-0.8.2/src/core/manager.cc
+--- rtorrent-0.8.2.orig/src/core/manager.cc	2008-05-07 08:19:11.000000000 -0400
++++ rtorrent-0.8.2/src/core/manager.cc	2008-05-24 04:58:48.996596707 -0400
+@@ -69,6 +69,7 @@
+ #include "manager.h"
+ #include "poll_manager_epoll.h"
+ #include "poll_manager_kqueue.h"
++#include "poll_manager_ports.h"
+ #include "poll_manager_select.h"
+ #include "view.h"
+ 
+@@ -189,6 +190,9 @@
+   if ((m_pollManager = PollManagerEPoll::create(sysconf(_SC_OPEN_MAX))) != NULL)
+     m_logImportant.push_front("Using 'epoll' based polling.");
+ 
++  else if ((m_pollManager = PollManagerPorts::create(sysconf(_SC_OPEN_MAX))) != NULL)
++    m_logImportant.push_front("Using 'ports' based polling.");
++
+   else if ((m_pollManager = PollManagerKQueue::create(sysconf(_SC_OPEN_MAX))) != NULL)
+     m_logImportant.push_front("Using 'kqueue' based polling.");
+ 
+diff -urN rtorrent-0.8.2.orig/src/core/manager.cc.orig rtorrent-0.8.2/src/core/manager.cc.orig
+--- rtorrent-0.8.2.orig/src/core/manager.cc.orig	1969-12-31 19:00:00.000000000 -0500
++++ rtorrent-0.8.2/src/core/manager.cc.orig	2008-05-07 08:19:11.000000000 -0400
+@@ -0,0 +1,550 @@
++// rTorrent - BitTorrent client
++// Copyright (C) 2005-2007, Jari Sundell
++//
++// This program is free software; you can redistribute it and/or modify
++// it under the terms of the GNU General Public License as published by
++// the Free Software Foundation; either version 2 of the License, or
++// (at your option) any later version.
++// 
++// This program is distributed in the hope that it will be useful,
++// but WITHOUT ANY WARRANTY; without even the implied warranty of
++// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++// GNU General Public License for more details.
++// 
++// You should have received a copy of the GNU General Public License
++// along with this program; if not, write to the Free Software
++// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
++//
++// In addition, as a special exception, the copyright holders give
++// permission to link the code of portions of this program with the
++// OpenSSL library under certain conditions as described in each
++// individual source file, and distribute linked combinations
++// including the two.
++//
++// You must obey the GNU General Public License in all respects for
++// all of the code used other than OpenSSL.  If you modify file(s)
++// with this exception, you may extend this exception to your version
++// of the file(s), but you are not obligated to do so.  If you do not
++// wish to do so, delete this exception statement from your version.
++// If you delete this exception statement from all source files in the
++// program, then also delete it here.
++//
++// Contact:  Jari Sundell <[email protected]>
++//
++//           Skomakerveien 33
++//           3185 Skoppum, NORWAY
++
++#include "config.h"
++
++#include <cstdio>
++#include <cstring>
++#include <fstream>
++#include <unistd.h>
++#include <sys/select.h>
++#include <rak/address_info.h>
++#include <rak/error_number.h>
++#include <rak/regex.h>
++#include <rak/path.h>
++#include <rak/string_manip.h>
++#include <sigc++/adaptors/bind.h>
++#include <sigc++/adaptors/hide.h>
++#include <torrent/object.h>
++#include <torrent/connection_manager.h>
++#include <torrent/error.h>
++#include <torrent/exceptions.h>
++#include <torrent/resume.h>
++#include <torrent/tracker_list.h>
++
++#include "rpc/parse_commands.h"
++#include "utils/directory.h"
++#include "utils/file_status_cache.h"
++
++#include "globals.h"
++#include "curl_get.h"
++#include "control.h"
++#include "download.h"
++#include "download_factory.h"
++#include "download_store.h"
++#include "http_queue.h"
++#include "manager.h"
++#include "poll_manager_epoll.h"
++#include "poll_manager_kqueue.h"
++#include "poll_manager_select.h"
++#include "view.h"
++
++namespace core {
++
++void
++receive_tracker_dump(const std::string& url, const char* data, size_t size) {
++  const std::string& filename = rpc::call_command_string("get_tracker_dump");
++
++  if (filename.empty())
++    return;
++
++  std::fstream fstr(filename.c_str(), std::ios::out | std::ios::app);
++
++  if (!fstr.is_open())
++    return;
++
++  fstr << "url: " << url << std::endl << "---" << std::endl;
++  fstr.write(data, size);
++  fstr << std::endl <<"---" << std::endl;
++}
++
++void
++Manager::handshake_log(const sockaddr* sa, int msg, int err, const torrent::HashString* hash) {
++  if (!rpc::call_command_value("get_handshake_log"))
++    return;
++  
++  std::string peer;
++  std::string download;
++
++  const rak::socket_address* socketAddress = rak::socket_address::cast_from(sa);
++
++  if (socketAddress->is_valid()) {
++    char port[6];
++    snprintf(port, sizeof(port), "%d", socketAddress->port());
++    peer = socketAddress->address_str() + ":" + port;
++  } else {
++    peer = "(unknown)";
++  }
++
++//   torrent::Download d = torrent::download_find(hash);
++
++//   if (d.is_valid())
++//     download = ": " + d.name();
++//   else
++    download = "";
++
++  switch (msg) {
++  case torrent::ConnectionManager::handshake_incoming:
++    m_logComplete.push_front("Incoming connection from " + peer + download);
++    break;
++  case torrent::ConnectionManager::handshake_outgoing:
++    m_logComplete.push_front("Outgoing connection to " + peer + download);
++    break;
++  case torrent::ConnectionManager::handshake_outgoing_encrypted:
++    m_logComplete.push_front("Outgoing encrypted connection to " + peer + download);
++    break;
++  case torrent::ConnectionManager::handshake_outgoing_proxy:
++    m_logComplete.push_front("Outgoing proxy connection to " + peer + download);
++    break;
++  case torrent::ConnectionManager::handshake_success:
++    m_logComplete.push_front("Successful handshake: " + peer + download);
++    break;
++  case torrent::ConnectionManager::handshake_dropped:
++    m_logComplete.push_front("Dropped handshake: " + peer + " - " + torrent::strerror(err) + download);
++    break;
++  case torrent::ConnectionManager::handshake_failed:
++    m_logComplete.push_front("Handshake failed: " + peer + " - " + torrent::strerror(err) + download);
++    break;
++  case torrent::ConnectionManager::handshake_retry_plaintext:
++    m_logComplete.push_front("Trying again without encryption: " + peer + download);
++    break;
++  case torrent::ConnectionManager::handshake_retry_encrypted:
++    m_logComplete.push_front("Trying again encrypted: " + peer + download);
++    break;
++  default:
++    m_logComplete.push_front("Unknown handshake message for " + peer + download);
++    break;
++  }
++}
++
++void
++Manager::push_log(const char* msg) {
++  m_logImportant.push_front(msg);
++  m_logComplete.push_front(msg);
++}
++
++Manager::Manager() :
++  m_hashingView(NULL),
++
++  m_pollManager(NULL) {
++
++  m_downloadStore   = new DownloadStore();
++  m_downloadList    = new DownloadList();
++  m_fileStatusCache = new FileStatusCache();
++  m_httpQueue       = new HttpQueue();
++}
++
++Manager::~Manager() {
++  delete m_downloadList;
++
++  delete m_downloadStore;
++  delete m_httpQueue;
++  delete m_fileStatusCache;
++}
++
++void
++Manager::set_hashing_view(View* v) {
++  if (v == NULL || m_hashingView != NULL)
++    throw torrent::internal_error("Manager::set_hashing_view(...) received NULL or is already set.");
++
++  m_hashingView = v;
++  v->signal_changed().connect(sigc::mem_fun(this, &Manager::receive_hashing_changed));
++}
++
++void
++Manager::initialize_first() {
++  if ((m_pollManager = PollManagerEPoll::create(sysconf(_SC_OPEN_MAX))) != NULL)
++    m_logImportant.push_front("Using 'epoll' based polling.");
++
++  else if ((m_pollManager = PollManagerKQueue::create(sysconf(_SC_OPEN_MAX))) != NULL)
++    m_logImportant.push_front("Using 'kqueue' based polling.");
++
++  else if ((m_pollManager = PollManagerSelect::create(sysconf(_SC_OPEN_MAX))) != NULL)
++    m_logImportant.push_front("Using 'select' based polling.");
++
++  else
++    throw std::runtime_error("Could not create any PollManager.");
++
++  // Need to initialize this before parseing options.
++  torrent::initialize(m_pollManager->get_torrent_poll());
++}
++
++// Most of this should be possible to move out.
++void
++Manager::initialize_second() {
++  torrent::Http::set_factory(sigc::mem_fun(m_pollManager->get_http_stack(), &CurlStack::new_object));
++  m_httpQueue->slot_factory(sigc::mem_fun(m_pollManager->get_http_stack(), &CurlStack::new_object));
++
++  CurlStack::global_init();
++
++  // Register slots to be called when a download is inserted/erased,
++  // opened or closed.
++  m_downloadList->slot_map_insert()["1_connect_logs"] = "d.initialize_logs=";
++  m_downloadList->slot_map_erase()["9_delete_tied"]   = "d.delete_tied=";
++
++  torrent::connection_manager()->set_signal_handshake_log(sigc::mem_fun(this, &Manager::handshake_log));
++}
++
++void
++Manager::cleanup() {
++  // Need to disconnect log signals? Not really since we won't receive
++  // any more.
++
++  m_downloadList->clear();
++
++  // When we implement asynchronous DNS lookups, we need to cancel them
++  // here before the torrent::* objects are deleted.
++
++  torrent::cleanup();
++  CurlStack::global_cleanup();
++
++  delete m_pollManager;
++}
++
++void
++Manager::shutdown(bool force) {
++  if (!force)
++    std::for_each(m_downloadList->begin(), m_downloadList->end(), std::bind1st(std::mem_fun(&DownloadList::pause_default), m_downloadList));
++  else
++    std::for_each(m_downloadList->begin(), m_downloadList->end(), std::bind1st(std::mem_fun(&DownloadList::close_quick), m_downloadList));
++}
++
++void
++Manager::listen_open() {
++  // This stuff really should be moved outside of manager, make it
++  // part of the init script.
++  if (!rpc::call_command_value("get_port_open"))
++    return;
++
++  int portFirst, portLast;
++  torrent::Object portRange = rpc::call_command_void("get_port_range");
++
++  if (portRange.is_string()) {
++    if (std::sscanf(portRange.as_string().c_str(), "%i-%i", &portFirst, &portLast) != 2)
++      throw torrent::input_error("Invalid port_range argument.");
++    
++//   } else if (portRange.is_list()) {
++
++  } else {
++    throw torrent::input_error("Invalid port_range argument.");
++  }
++
++  if (portFirst > portLast || portLast >= (1 << 16))
++    throw torrent::input_error("Invalid port range.");
++
++  if (rpc::call_command_value("get_port_random")) {
++    int boundary = portFirst + random() % (portLast - portFirst + 1);
++
++    if (torrent::connection_manager()->listen_open(boundary, portLast) ||
++        torrent::connection_manager()->listen_open(portFirst, boundary))
++      return;
++
++  } else {
++    if (torrent::connection_manager()->listen_open(portFirst, portLast))
++      return;
++  }
++
++  throw torrent::input_error("Could not open/bind port for listening: " + std::string(rak::error_number::current().c_str()));
++}
++
++std::string
++Manager::bind_address() const {
++  return rak::socket_address::cast_from(torrent::connection_manager()->bind_address())->address_str();
++}
++
++void
++Manager::set_bind_address(const std::string& addr) {
++  int err;
++  rak::address_info* ai;
++
++  if ((err = rak::address_info::get_address_info(addr.c_str(), PF_INET, SOCK_STREAM, &ai)) != 0)
++    throw torrent::input_error("Could not set bind address: " + std::string(rak::address_info::strerror(err)) + ".");
++  
++  try {
++
++    if (torrent::connection_manager()->listen_port() != 0) {
++      torrent::connection_manager()->listen_close();
++      torrent::connection_manager()->set_bind_address(ai->address()->c_sockaddr());
++      listen_open();
++
++    } else {
++      torrent::connection_manager()->set_bind_address(ai->address()->c_sockaddr());
++    }
++
++    m_pollManager->get_http_stack()->set_bind_address(!ai->address()->is_address_any() ? ai->address()->address_str() : std::string());
++
++    rak::address_info::free_address_info(ai);
++
++  } catch (torrent::input_error& e) {
++    rak::address_info::free_address_info(ai);
++    throw e;
++  }
++}
++
++std::string
++Manager::local_address() const {
++  return rak::socket_address::cast_from(torrent::connection_manager()->local_address())->address_str();
++}
++
++void
++Manager::set_local_address(const std::string& addr) {
++  int err;
++  rak::address_info* ai;
++
++  if ((err = rak::address_info::get_address_info(addr.c_str(), PF_INET, SOCK_STREAM, &ai)) != 0)
++    throw torrent::input_error("Could not set local address: " + std::string(rak::address_info::strerror(err)) + ".");
++  
++  try {
++
++    torrent::connection_manager()->set_local_address(ai->address()->c_sockaddr());
++    rak::address_info::free_address_info(ai);
++
++  } catch (torrent::input_error& e) {
++    rak::address_info::free_address_info(ai);
++    throw e;
++  }
++}
++
++std::string
++Manager::proxy_address() const {
++  return rak::socket_address::cast_from(torrent::connection_manager()->proxy_address())->address_str();
++}
++
++void
++Manager::set_proxy_address(const std::string& addr) {
++  int port;
++  rak::address_info* ai;
++
++  char buf[addr.length() + 1];
++
++  int err = std::sscanf(addr.c_str(), "%[^:]:%i", buf, &port);
++
++  if (err <= 0)
++    throw torrent::input_error("Could not parse proxy address.");
++
++  if (err == 1)
++    port = 80;
++
++  if ((err = rak::address_info::get_address_info(buf, PF_INET, SOCK_STREAM, &ai)) != 0)
++    throw torrent::input_error("Could not set proxy address: " + std::string(rak::address_info::strerror(err)) + ".");
++  
++  try {
++
++    ai->address()->set_port(port);
++    torrent::connection_manager()->set_proxy_address(ai->address()->c_sockaddr());
++    
++    rak::address_info::free_address_info(ai);
++
++  } catch (torrent::input_error& e) {
++    rak::address_info::free_address_info(ai);
++    throw e;
++  }
++}
++
++void
++Manager::receive_http_failed(std::string msg) {
++  m_logImportant.push_front("Http download error: \"" + msg + "\"");
++  m_logComplete.push_front("Http download error: \"" + msg + "\"");
++}
++
++void
++Manager::try_create_download(const std::string& uri, int flags, const command_list_type& commands) {
++  // If the path was attempted loaded before, skip it.
++  if (!(flags & create_raw_data) &&
++      !is_network_uri(uri) &&
++      !file_status_cache()->insert(uri, 0))
++    return;
++
++  // Adding download.
++  DownloadFactory* f = new DownloadFactory(this);
++
++  f->variables()["tied_to_file"] = (int64_t)(bool)(flags & create_tied);
++  f->commands().insert(f->commands().end(), commands.begin(), commands.end());
++
++  f->set_start(flags & create_start);
++  f->set_print_log(!(flags & create_quiet));
++  f->slot_finished(sigc::bind(sigc::ptr_fun(&rak::call_delete_func<core::DownloadFactory>), f));
++
++  if (flags & create_raw_data)
++    f->load_raw_data(uri);
++  else
++    f->load(uri);
++
++  f->commit();
++}
++
++utils::Directory
++path_expand_transform(std::string path, const utils::directory_entry& entry) {
++  return path + entry.d_name;
++}
++
++// Move this somewhere better.
++void
++path_expand(std::vector<std::string>* paths, const std::string& pattern) {
++  std::vector<utils::Directory> currentCache;
++  std::vector<utils::Directory> nextCache;
++
++  rak::split_iterator_t<std::string> first = rak::split_iterator(pattern, '/');
++  rak::split_iterator_t<std::string> last  = rak::split_iterator(pattern);
++    
++  if (first == last)
++    return;
++
++  // Check for initial '/' that indicates the root.
++  if ((*first).empty()) {
++    currentCache.push_back(utils::Directory("/"));
++    ++first;
++  } else if (rak::trim(*first) == "~") {
++    currentCache.push_back(utils::Directory("~"));
++    ++first;
++  } else {
++    currentCache.push_back(utils::Directory("."));
++  }
++
++  // Might be an idea to use depth-first search instead.
++
++  for (; first != last; ++first) {
++    rak::regex r(*first);
++
++    if (r.pattern().empty())
++      continue;
++
++    // Special case for ".."?
++
++    for (std::vector<utils::Directory>::iterator itr = currentCache.begin(); itr != currentCache.end(); ++itr) {
++      // Only include filenames starting with '.' if the pattern
++      // starts with the same.
++      itr->update((r.pattern()[0] != '.') ? utils::Directory::update_hide_dot : 0);
++      itr->erase(std::remove_if(itr->begin(), itr->end(), rak::on(rak::mem_ref(&utils::directory_entry::d_name), std::not1(r))), itr->end());
++
++      std::transform(itr->begin(), itr->end(), std::back_inserter(nextCache), rak::bind1st(std::ptr_fun(&path_expand_transform), itr->path() + "/"));
++    }
++
++    currentCache.clear();
++    currentCache.swap(nextCache);
++  }
++
++  std::transform(currentCache.begin(), currentCache.end(), std::back_inserter(*paths), std::mem_fun_ref(&utils::Directory::path));
++}
++
++bool
++manager_equal_tied(const std::string& path, Download* download) {
++  return path == rpc::call_command_string("d.get_tied_to_file", rpc::make_target(download));
++}
++
++void
++Manager::try_create_download_expand(const std::string& uri, int flags, command_list_type commands) {
++  if (flags & create_raw_data) {
++    try_create_download(uri, flags, commands);
++    return;
++  }
++
++  std::vector<std::string> paths;
++  paths.reserve(256);
++
++  path_expand(&paths, uri);
++
++  if (!paths.empty())
++    for (std::vector<std::string>::iterator itr = paths.begin(); itr != paths.end(); ++itr)
++      try_create_download(*itr, flags, commands);
++
++  else
++    try_create_download(uri, flags, commands);
++}
++
++// DownloadList's hashing related functions don't actually start the
++// hashing, it only reacts to events. This functions checks the
++// hashing view and starts hashing if nessesary.
++void
++Manager::receive_hashing_changed() {
++  bool foundHashing = std::find_if(m_hashingView->begin_visible(), m_hashingView->end_visible(),
++                                   std::mem_fun(&Download::is_hash_checking)) != m_hashingView->end_visible();
++  
++  // Try quick hashing all those with hashing == initial, set them to
++  // something else when failed.
++  for (View::iterator itr = m_hashingView->begin_visible(), last = m_hashingView->end_visible(); itr != last; ++itr) {
++    if ((*itr)->is_hash_checked())
++      throw torrent::internal_error("core::Manager::receive_hashing_changed() (*itr)->is_hash_checked().");
++  
++    if ((*itr)->is_hash_checking() || (*itr)->is_hash_failed())
++      continue;
++
++    bool tryQuick =
++      rpc::call_command_value("d.get_hashing", rpc::make_target(*itr)) == Download::variable_hashing_initial &&
++      (*itr)->download()->file_list()->bitfield()->empty();
++
++    if (!tryQuick && foundHashing)
++      continue;
++
++    try {
++      m_downloadList->open_throw(*itr);
++
++      // Since the bitfield is allocated on loading of resume load or
++      // hash start, and unallocated on close, we know that if it it
++      // not empty then we have already loaded any existing resume
++      // data.
++      if ((*itr)->download()->file_list()->bitfield()->empty())
++        torrent::resume_load_progress(*(*itr)->download(), (*itr)->download()->bencode()->get_key("libtorrent_resume"));
++
++      if (tryQuick) {
++        if ((*itr)->download()->hash_check(true))
++          continue;
++
++        (*itr)->download()->hash_stop();
++
++        if (foundHashing) {
++          rpc::call_command_set_value("d.set_hashing", Download::variable_hashing_rehash, rpc::make_target(*itr));
++          continue;
++        }
++      }
++
++      (*itr)->download()->hash_check(false);
++      foundHashing = true;
++
++    } catch (torrent::local_error& e) {
++      if (tryQuick) {
++        // Make sure we don't repeat the quick hashing.
++        rpc::call_command_set_value("d.set_hashing", Download::variable_hashing_rehash, rpc::make_target(*itr));
++
++      } else {
++        (*itr)->set_hash_failed(true);
++        push_log(e.what());
++      }
++    }
++  }
++}
++
++}
+diff -urN rtorrent-0.8.2.orig/src/core/poll_manager_ports.cc rtorrent-0.8.2/src/core/poll_manager_ports.cc
+--- rtorrent-0.8.2.orig/src/core/poll_manager_ports.cc	1969-12-31 19:00:00.000000000 -0500
++++ rtorrent-0.8.2/src/core/poll_manager_ports.cc	2008-05-10 19:04:07.000000000 -0400
+@@ -0,0 +1,118 @@
++// rTorrent - BitTorrent client
++// Copyright (C) 2005-2007, Jari Sundell
++//
++// This program is free software; you can redistribute it and/or modify
++// it under the terms of the GNU General Public License as published by
++// the Free Software Foundation; either version 2 of the License, or
++// (at your option) any later version.
++// 
++// This program is distributed in the hope that it will be useful,
++// but WITHOUT ANY WARRANTY; without even the implied warranty of
++// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++// GNU General Public License for more details.
++// 
++// You should have received a copy of the GNU General Public License
++// along with this program; if not, write to the Free Software
++// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
++//
++// In addition, as a special exception, the copyright holders give
++// permission to link the code of portions of this program with the
++// OpenSSL library under certain conditions as described in each
++// individual source file, and distribute linked combinations
++// including the two.
++//
++// You must obey the GNU General Public License in all respects for
++// all of the code used other than OpenSSL.  If you modify file(s)
++// with this exception, you may extend this exception to your version
++// of the file(s), but you are not obligated to do so.  If you do not
++// wish to do so, delete this exception statement from your version.
++// If you delete this exception statement from all source files in the
++// program, then also delete it here.
++//
++// Contact:  Jari Sundell <[email protected]>
++//
++//           Skomakerveien 33
++//           3185 Skoppum, NORWAY
++
++#include "config.h"
++
++#include <cstring>
++#include <iostream>
++#include <stdexcept>
++#include <unistd.h>
++#include <sys/time.h>
++#include <torrent/poll_ports.h>
++#include <torrent/torrent.h>
++
++#include "poll_manager_ports.h"
++
++namespace core {
++
++PollManagerPorts*
++PollManagerPorts::create(int maxOpenSockets) {
++  torrent::PollPorts* p = torrent::PollPorts::create(maxOpenSockets);
++
++  if (p == NULL)
++    return NULL;
++  else
++    return new PollManagerPorts(p);
++}
++
++PollManagerPorts::~PollManagerPorts() {
++}
++
++void
++PollManagerPorts::poll(rak::timer timeout) {
++  // Add 1ms to ensure we don't idle loop due to the lack of
++  // resolution.
++  torrent::perform();
++  timeout = std::min(timeout, rak::timer(torrent::next_timeout())) + 1000;
++
++  if (!m_httpStack.empty()) {
++    // When we're using libcurl we need to use select, but as this is
++    // inefficient we try avoiding it whenever possible.
++#if defined USE_VARIABLE_FDSET
++    std::memset(m_readSet, 0, m_setSize);
++    std::memset(m_writeSet, 0, m_setSize);
++    std::memset(m_errorSet, 0, m_setSize);
++#else
++    FD_ZERO(m_readSet);
++    FD_ZERO(m_writeSet);
++    FD_ZERO(m_errorSet);
++#endif    
++    FD_SET(static_cast<torrent::PollPorts*>(m_poll)->file_descriptor(), m_readSet);
++
++    unsigned int maxFd = std::max((unsigned int)static_cast<torrent::PollPorts*>(m_poll)->file_descriptor(),
++                                  m_httpStack.fdset(m_readSet, m_writeSet, m_errorSet));
++
++    timeval t = timeout.tval();
++
++    if (select(maxFd + 1, m_readSet, m_writeSet, m_errorSet, &t) == -1) {
++	    std::cerr << "error from select\n";
++      return check_error();
++    }
++    m_httpStack.perform();
++
++    if (!FD_ISSET(static_cast<torrent::PollPorts*>(m_poll)->file_descriptor(), m_readSet)) {
++      // Need to call perform here so that scheduled task get done
++      // even if there's no socket events outside of the http stuff.
++      torrent::perform();
++      return;
++    }
++
++    // Clear the timeout since we've already used it in the select call.
++    timeout = rak::timer();
++  }
++
++  // Yes, below is how much code really *should* have been in this
++  // function. ;)
++
++  if (static_cast<torrent::PollPorts*>(m_poll)->poll((timeout.usec() + 999) / 1000) == -1) {
++	  std::cerr << "error from ports poll\n";
++    return check_error();
++  }
++  torrent::perform();
++  static_cast<torrent::PollPorts*>(m_poll)->perform();
++}
++
++}
+diff -urN rtorrent-0.8.2.orig/src/core/poll_manager_ports.h rtorrent-0.8.2/src/core/poll_manager_ports.h
+--- rtorrent-0.8.2.orig/src/core/poll_manager_ports.h	1969-12-31 19:00:00.000000000 -0500
++++ rtorrent-0.8.2/src/core/poll_manager_ports.h	2008-05-10 19:04:07.000000000 -0400
+@@ -0,0 +1,63 @@
++// rTorrent - BitTorrent client
++// Copyright (C) 2005-2007, Jari Sundell
++//
++// This program is free software; you can redistribute it and/or modify
++// it under the terms of the GNU General Public License as published by
++// the Free Software Foundation; either version 2 of the License, or
++// (at your option) any later version.
++// 
++// This program is distributed in the hope that it will be useful,
++// but WITHOUT ANY WARRANTY; without even the implied warranty of
++// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++// GNU General Public License for more details.
++// 
++// You should have received a copy of the GNU General Public License
++// along with this program; if not, write to the Free Software
++// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
++//
++// In addition, as a special exception, the copyright holders give
++// permission to link the code of portions of this program with the
++// OpenSSL library under certain conditions as described in each
++// individual source file, and distribute linked combinations
++// including the two.
++//
++// You must obey the GNU General Public License in all respects for
++// all of the code used other than OpenSSL.  If you modify file(s)
++// with this exception, you may extend this exception to your version
++// of the file(s), but you are not obligated to do so.  If you do not
++// wish to do so, delete this exception statement from your version.
++// If you delete this exception statement from all source files in the
++// program, then also delete it here.
++//
++// Contact:  Jari Sundell <[email protected]>
++//
++//           Skomakerveien 33
++//           3185 Skoppum, NORWAY
++
++#ifndef RTORRENT_CORE_POLL_MANAGER_PORTS_H
++#define RTORRENT_CORE_POLL_MANAGER_PORTS_H
++
++#include "poll_manager.h"
++
++namespace torrent {
++  class PollPorts;
++}
++
++namespace core {
++
++class PollManagerPorts : public PollManager {
++public:
++  static PollManagerPorts* create(int maxOpenSockets);
++  ~PollManagerPorts();
++
++  torrent::Poll*      get_torrent_poll();
++
++  void                poll(rak::timer timeout);
++
++private:
++  PollManagerPorts(torrent::Poll* p) : PollManager(p) {}
++};
++
++}
++
++#endif