\brief Server non-inline non-template implementation */
#include "Server.hh"
-//#include "Server.ih"
+#include "Server.ih"
// Custom includes
#include <unistd.h>
#include "../Utils/senfassert.hh"
#include "../Utils/membind.hh"
#include "../Utils/Logger/SenfLog.hh"
+#include "Readline.hh"
//#include "Server.mpp"
#define prefix_
///////////////////////////////cc.p////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////
+// senf::console::detail::NonBlockingSocketSink
+
+prefix_ std::streamsize senf::console::detail::NonblockingSocketSink::write(const char * s,
+ std::streamsize n)
+{
+ try {
+ if (client_.handle().writeable()) {
+ std::string data (s, n);
+ client_.translate(data);
+ client_.handle().write( data );
+ }
+ }
+ catch (SystemException & ex) {
+ ;
+ }
+ return n;
+}
+
+///////////////////////////////////////////////////////////////////////////
+// senf::console::Server
+
prefix_ senf::console::Server &
senf::console::Server::start(senf::INet4SocketAddress const & address)
{
senf::TCPv4ServerSocketHandle handle (address);
- senf::console::Server::start(handle);
+ Server & server (senf::console::Server::start(handle));
SENF_LOG((Server::SENFLogArea)(log::NOTICE)(
"Console server started at " << address ));
- return *instance_;
+ return server;
}
prefix_ senf::console::Server &
senf::console::Server::start(senf::INet6SocketAddress const & address)
{
senf::TCPv6ServerSocketHandle handle (address);
- senf::console::Server::start(handle);
+ Server & server (senf::console::Server::start(handle));
SENF_LOG((Server::SENFLogArea)(log::NOTICE)(
"Console server started at " << address ));
- return *instance_;
+ return server;
}
-///////////////////////////////////////////////////////////////////////////
-// senf::console::Server
-
-boost::scoped_ptr<senf::console::Server> senf::console::Server::instance_;
+prefix_ boost::scoped_ptr<senf::console::Server> & senf::console::Server::instancePtr()
+{
+ // We cannot make 'instance' a global or class-static variable, since it will then be destructed
+ // at an unknown time which may fail if the scheduler or the file-handle pool allocators have
+ // already been destructed.
+ static boost::scoped_ptr<senf::console::Server> instance;
+ return instance;
+}
-prefix_ void senf::console::Server::start(ServerHandle handle)
+prefix_ senf::console::Server & senf::console::Server::start(ServerHandle handle)
{
- SENF_ASSERT( ! instance_ );
- instance_.reset(new Server(handle));
+ // Uah .... ensure the scheduler is created before the instance pointer so it get's destructed
+ // AFTER it.
+ (void) senf::Scheduler::instance();
+ SENF_ASSERT( ! instancePtr() );
+ instancePtr().reset(new Server(handle));
+ return * instancePtr();
}
prefix_ senf::console::Server::Server(ServerHandle handle)
prefix_ void senf::console::Server::newClient(Scheduler::EventId event)
{
ServerHandle::ClientSocketHandle client (handle_.accept());
- boost::intrusive_ptr<Client> p (new Client(client, name_));
+ boost::intrusive_ptr<Client> p (new Client(*this, client, name_));
clients_.insert( p );
SENF_LOG(( "Registered new client " << p.get() ));
}
}
///////////////////////////////////////////////////////////////////////////
-// senf::console::Client
+// senf::console::detail::DumbClientReader
-prefix_ senf::console::Client::Client(ClientHandle handle, std::string const & name)
- : handle_ (handle), name_ (name), out_(::dup(handle.fd()))
+prefix_ senf::console::detail::DumbClientReader::DumbClientReader(Client & client)
+ : ClientReader(client), promptLen_ (0), promptActive_ (false)
{
showPrompt();
- ReadHelper<ClientHandle>::dispatch( handle_, 16384u, ReadUntil("\n"),
- senf::membind(&Client::clientData, this) );
+ ReadHelper<ClientHandle>::dispatch( handle(), 16384u, ReadUntil("\n"),
+ senf::membind(&DumbClientReader::clientData, this) );
}
-prefix_ senf::console::Client::~Client()
-{}
-
-prefix_ void senf::console::Client::stopClient()
+prefix_ void
+senf::console::detail::DumbClientReader::clientData(senf::ReadHelper<ClientHandle>::ptr helper)
{
- // THIS COMMITS SUICIDE. THE INSTANCE IS GONE AFTER removeClient RETURNS
- Server::instance_->removeClient(*this);
-}
-
-prefix_ void senf::console::Client::clientData(ReadHelper<ClientHandle>::ptr helper)
-{
- if (helper->error() || handle_.eof()) {
+ if (helper->error() || handle().eof()) {
// THIS COMMITS SUICIDE. THE INSTANCE IS GONE AFTER stopClient RETURNS
stopClient();
return;
}
+
+ promptLen_ = 0;
+ promptActive_ = false;
std::string data (tail_ + helper->data());
tail_ = helper->tail();
- boost::trim(data); // Gets rid of superfluous \r or \n characters
+ boost::trim(data); // Gets rid of superfluous \r or \n characters
+ handleInput(data);
+
+ showPrompt();
+ ReadHelper<ClientHandle>::dispatch( handle(), 16384u, ReadUntil("\n"),
+ senf::membind(&DumbClientReader::clientData, this) );
+
+}
+
+prefix_ void senf::console::detail::DumbClientReader::showPrompt()
+{
+ std::string prompt (promptString());
+
+ stream() << std::flush;
+ handle().write(prompt);
+ promptLen_ = prompt.size();
+ promptActive_ = true;
+}
+
+prefix_ void senf::console::detail::DumbClientReader::v_disablePrompt()
+{
+ if (promptActive_ && promptLen_ > 0) {
+ stream() << '\r' << std::string(' ', promptLen_) << '\r';
+ promptLen_ = 0;
+ }
+}
+
+prefix_ void senf::console::detail::DumbClientReader::v_enablePrompt()
+{
+ if (promptActive_ && ! promptLen_)
+ showPrompt();
+}
+
+prefix_ void senf::console::detail::DumbClientReader::v_translate(std::string & data)
+{}
+
+///////////////////////////////////////////////////////////////////////////
+// senf::console::Client
+
+prefix_ senf::console::Client::Client(Server & server, ClientHandle handle,
+ std::string const & name)
+ : out_t(boost::ref(*this)), senf::log::IOStreamTarget(out_t::member), server_ (server),
+ handle_ (handle), name_ (name), reader_ (new detail::SafeReadlineClientReader (*this))
+{
+ executor_.autocd(true).autocomplete(true);
+ handle_.facet<senf::TCPSocketProtocol>().nodelay();
+ // route< senf::SenfLog, senf::log::NOTICE >();
+}
+
+prefix_ void senf::console::Client::translate(std::string & data)
+{
+ reader_->translate(data);
+}
+
+prefix_ void senf::console::Client::handleInput(std::string data)
+{
+ if (data.empty())
+ data = lastCommand_;
+ else
+ lastCommand_ = data;
try {
- if (! parser_.parse(data, boost::bind<void>(boost::ref(executor_), _1, boost::ref(out_))))
- out_ << "syntax error" << std::endl;
+ if (! parser_.parse(data, boost::bind<void>( boost::ref(executor_),
+ boost::ref(stream()),
+ _1 )) )
+ stream() << "syntax error" << std::endl;
}
catch (Executor::ExitException &) {
- // THIS COMMITS SUICIDE. THE INSTANCE IS GONE AFTER stopClient RETURNS
- stopClient();
+ // This generates an EOF condition on the Handle. This EOF condition is expected
+ // to be handled gracefully by the ClientReader. We cannot call stop() here, since we
+ // are called from the client reader callback and that will continue executing even if we
+ // call stop here ...
+ handle_.facet<senf::TCPSocketProtocol>().shutdown(senf::TCPSocketProtocol::ShutRD);
return;
}
catch (std::exception & ex) {
- out_ << ex.what() << std::endl;
+ stream() << ex.what() << std::endl;
}
catch (...) {
- out_ << "unidentified error (unknown exception thrown)" << std::endl;
+ stream() << "unidentified error (unknown exception thrown)" << std::endl;
}
-
- showPrompt();
- ReadHelper<ClientHandle>::dispatch( handle_, 16384u, ReadUntil("\n"),
- senf::membind(&Client::clientData, this) );
}
-prefix_ void senf::console::Client::showPrompt()
+prefix_ void senf::console::Client::v_write(boost::posix_time::ptime timestamp,
+ std::string const & stream,
+ std::string const & area, unsigned level,
+ std::string const & message)
{
- out_ << name_ << ":" << executor_.cwd().path() << "# " << std::flush;
+ reader_->disablePrompt();
+ IOStreamTarget::v_write(timestamp, stream, area, level, message);
+ out_t::member << std::flush;
+ reader_->enablePrompt();
}
///////////////////////////////cc.e////////////////////////////////////////
projects / senf.git / blobdiff