4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
6 // Stefan Bund <g0dil@berlios.de>
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 2 of the License, or
11 // (at your option) any later version.
13 // This program is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the
20 // Free Software Foundation, Inc.,
21 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 \brief Server non-inline non-template implementation */
32 #include <boost/algorithm/string/trim.hpp>
33 #include <boost/iostreams/device/file_descriptor.hpp>
34 #include <boost/iostreams/stream.hpp>
35 #include <boost/bind.hpp>
36 #include "../Utils/senfassert.hh"
37 #include "../Utils/membind.hh"
38 #include "../Utils/Logger/SenfLog.hh"
40 //#include "Server.mpp"
42 ///////////////////////////////cc.p////////////////////////////////////////
44 ///////////////////////////////////////////////////////////////////////////
45 // senf::console::detail::NonBlockingSocketSink
47 prefix_ std::streamsize senf::console::detail::NonblockingSocketSink::write(const char * s,
51 if (handle_.writeable())
52 handle_.write(s, s+n);
54 catch (SystemException & ex) {
60 ///////////////////////////////////////////////////////////////////////////
61 // senf::console::Server
63 prefix_ senf::console::Server &
64 senf::console::Server::start(senf::INet4SocketAddress const & address)
66 senf::TCPv4ServerSocketHandle handle (address);
67 senf::console::Server::start(handle);
68 SENF_LOG((Server::SENFLogArea)(log::NOTICE)(
69 "Console server started at " << address ));
73 prefix_ senf::console::Server &
74 senf::console::Server::start(senf::INet6SocketAddress const & address)
76 senf::TCPv6ServerSocketHandle handle (address);
77 senf::console::Server::start(handle);
78 SENF_LOG((Server::SENFLogArea)(log::NOTICE)(
79 "Console server started at " << address ));
83 prefix_ senf::console::Server & senf::console::Server::instance()
85 SENF_ASSERT( instancePtr() );
86 return *instancePtr();
89 prefix_ boost::scoped_ptr<senf::console::Server> & senf::console::Server::instancePtr()
91 // We cannot make 'instance' a global or class-static variable, since it will then be destructed
92 // at an unknown time which may fail if the scheduler or the file-handle pool allocators have
93 // already been destructed.
94 static boost::scoped_ptr<senf::console::Server> instance;
98 prefix_ void senf::console::Server::start(ServerHandle handle)
100 // Uah .... ensure the scheduler is created before the instance pointer so it get's destructed
102 (void) senf::Scheduler::instance();
103 SENF_ASSERT( ! instancePtr() );
104 instancePtr().reset(new Server(handle));
107 prefix_ senf::console::Server::Server(ServerHandle handle)
110 Scheduler::instance().add( handle_, senf::membind(&Server::newClient, this) );
113 prefix_ senf::console::Server::~Server()
115 Scheduler::instance().remove(handle_);
118 prefix_ void senf::console::Server::newClient(Scheduler::EventId event)
120 ServerHandle::ClientSocketHandle client (handle_.accept());
121 boost::intrusive_ptr<Client> p (new Client(client, name_));
122 clients_.insert( p );
123 SENF_LOG(( "Registered new client " << p.get() ));
126 prefix_ void senf::console::Server::removeClient(Client & client)
128 SENF_LOG(( "Disposing client " << & client ));
129 // THIS DELETES THE CLIENT INSTANCE !!
130 clients_.erase(boost::intrusive_ptr<Client>(&client));
133 ///////////////////////////////////////////////////////////////////////////
134 // senf::console::Client
136 prefix_ senf::console::Client::Client(ClientHandle handle, std::string const & name)
137 : out_t(handle), senf::log::IOStreamTarget(out_t::member),
138 handle_ (handle), name_ (name), promptLen_(0)
141 ReadHelper<ClientHandle>::dispatch( handle_, 16384u, ReadUntil("\n"),
142 senf::membind(&Client::clientData, this) );
143 route< senf::SenfLog, senf::log::NOTICE >();
146 prefix_ senf::console::Client::~Client()
149 prefix_ void senf::console::Client::stopClient()
151 // THIS COMMITS SUICIDE. THE INSTANCE IS GONE AFTER removeClient RETURNS
152 Server::instance().removeClient(*this);
155 prefix_ void senf::console::Client::clientData(ReadHelper<ClientHandle>::ptr helper)
158 if (helper->error() || handle_.eof()) {
159 // THIS COMMITS SUICIDE. THE INSTANCE IS GONE AFTER stopClient RETURNS
164 std::string data (tail_ + helper->data());
165 tail_ = helper->tail();
166 boost::trim(data); // Gets rid of superfluous \r or \n characters
174 if (! parser_.parse(data, boost::bind<void>( boost::ref(executor_),
175 boost::ref(out_t::member),
177 out_t::member << "syntax error" << std::endl;
179 catch (Executor::ExitException &) {
180 // THIS COMMITS SUICIDE. THE INSTANCE IS GONE AFTER stopClient RETURNS
184 catch (std::exception & ex) {
185 out_t::member << ex.what() << std::endl;
188 out_t::member << "unidentified error (unknown exception thrown)" << std::endl;
192 ReadHelper<ClientHandle>::dispatch( handle_, 16384u, ReadUntil("\n"),
193 senf::membind(&Client::clientData, this) );
196 prefix_ void senf::console::Client::showPrompt()
198 std::string path (executor_.cwd().path());
199 out_t::member << name_ << ":" << path << "# " << std::flush;
200 promptLen_ = name_.size() + 1 + path.size() + 1;
203 prefix_ void senf::console::Client::v_write(boost::posix_time::ptime timestamp,
204 std::string const & stream,
205 std::string const & area, unsigned level,
206 std::string const & message)
209 out_t::member << '\r' << std::string(' ', promptLen_) << '\r';
210 IOStreamTarget::v_write(timestamp, stream, area, level, message);
215 ///////////////////////////////cc.e////////////////////////////////////////
217 //#include "Server.mpp"
223 // comment-column: 40
224 // c-file-style: "senf"
225 // indent-tabs-mode: nil
226 // ispell-local-dictionary: "american"
227 // compile-command: "scons -u test"