diff options
Diffstat (limited to 'apps/Gateway/Gateway/Event_Channel.cpp')
-rw-r--r-- | apps/Gateway/Gateway/Event_Channel.cpp | 451 |
1 files changed, 0 insertions, 451 deletions
diff --git a/apps/Gateway/Gateway/Event_Channel.cpp b/apps/Gateway/Gateway/Event_Channel.cpp deleted file mode 100644 index ae07185d91c..00000000000 --- a/apps/Gateway/Gateway/Event_Channel.cpp +++ /dev/null @@ -1,451 +0,0 @@ -/* -*- C++ -*- */ -// $Id$ - -#define ACE_BUILD_SVC_DLL -#include "Proxy_Handler_Connector.h" -#include "Event_Channel.h" - -ACE_Event_Channel_Options::ACE_Event_Channel_Options (void) - : locking_strategy_ (0), - performance_window_ (0), - blocking_semantics_ (ACE_NONBLOCK), - socket_queue_size_ (0), - threading_strategy_ (REACTIVE), - acceptor_port_ (ACE_DEFAULT_GATEWAY_SERVER_PORT), - connector_role_ (0), - acceptor_role_ (0), - verbose_ (0) -{ -} - -ACE_Event_Channel_Options::~ACE_Event_Channel_Options (void) -{ - delete this->locking_strategy_; -} - -ACE_Event_Channel::~ACE_Event_Channel (void) -{ -} - -ACE_Event_Channel::ACE_Event_Channel (void) - : acceptor_ (*this) -{ -} - -ACE_Event_Channel_Options & -ACE_Event_Channel::options (void) -{ - return this->options_; -} - -int -ACE_Event_Channel::compute_performance_statistics (void) -{ - ACE_DEBUG ((LM_DEBUG, "(%t) doing the performance timeout here...\n")); - PROXY_MAP_ITERATOR cmi (this->proxy_map_); - - // If we've got a ACE_Thread Manager then use it to suspend all the - // threads. This will enable us to get an accurate count. - - if (this->options ().threading_strategy_ != ACE_Event_Channel_Options::REACTIVE) - { - if (ACE_Service_Config::thr_mgr ()->suspend_all () == -1) - ACE_ERROR_RETURN ((LM_ERROR, "(%t) %p\n", "suspend_all"), -1); - ACE_DEBUG ((LM_DEBUG, "(%t) suspending all threads...")); - } - - size_t total_bytes_in = 0; - size_t total_bytes_out = 0; - - // Iterate through the connection map summing up the number of bytes - // sent/received. - - for (PROXY_MAP_ENTRY *me = 0; - cmi.next (me) != 0; - cmi.advance ()) - { - Proxy_Handler *proxy_handler = me->int_id_; - - if (proxy_handler->proxy_role () == 'C') - total_bytes_out += proxy_handler->total_bytes (); - else // proxy_handler->proxy_role () == 'S' - total_bytes_in += proxy_handler->total_bytes (); - } - -#if defined (ACE_NLOGGING) - ACE_OS::fprintf (stderr, - "After %d seconds, \ntotal_bytes_in = %d\ntotal_bytes_out = %d\n", - performance_window_, - total_bytes_in, - total_bytes_out); - - ACE_OS::fprintf (stderr, "%f Mbits/sec received.\n", - (float) (total_bytes_in * 8 / (float) (1024*1024*this->performance_window_))); - - ACE_OS::fprintf (stderr, "%f Mbits/sec sent.\n", - (float) (total_bytes_out * 8 / (float) (1024*1024*this->performance_window_))); -#else - ACE_DEBUG ((LM_DEBUG, "(%t) after %d seconds, \ntotal_bytes_in = %d\ntotal_bytes_out = %d\n", - this->options ().performance_window_, - total_bytes_in, - total_bytes_out)); - ACE_DEBUG ((LM_DEBUG, "(%t) %f Mbits/sec received.\n", - (float) (total_bytes_in * 8 / (float) (1024 * 1024 * this->options ().performance_window_)))); - ACE_DEBUG ((LM_DEBUG, "(%t) %f Mbits/sec sent.\n", - (float) (total_bytes_out * 8 / (float) (1024 * 1024 * this->options ().performance_window_)))); -#endif /* ACE_NLOGGING */ - - // Resume all the threads again. - - if (this->options ().threading_strategy_ != ACE_Event_Channel_Options::REACTIVE) - { - if (ACE_Service_Config::thr_mgr ()->resume_all () == -1) - ACE_ERROR_RETURN ((LM_ERROR, "(%t) %p\n", "resume_all"), -1); - ACE_DEBUG ((LM_DEBUG, "(%t) resuming all threads...")); - } - - return 0; -} - -int -ACE_Event_Channel::handle_timeout (const ACE_Time_Value &, - const void *) -{ - return this->compute_performance_statistics (); -} - -// This method forwards the <event> to Consumer that have registered -// to receive it. - -int -ACE_Event_Channel::put (ACE_Message_Block *event, - ACE_Time_Value *) -{ - // We got a valid event, so determine its virtual forwarding - // address, which is stored in the first of the two event blocks, - // which are chained together by this->recv(). - - Event_Key *forwarding_addr = (Event_Key *) event->rd_ptr (); - - // Skip over the address portion and get the data. - ACE_Message_Block *data = event->cont (); - - // <dispatch_set> points to the set of Consumers associated with - // this forwarding address. - Consumer_Dispatch_Set *dispatch_set = 0; - - if (this->efd_.find (*forwarding_addr, dispatch_set) == -1) - // Failure. - ACE_ERROR ((LM_DEBUG, - "(%t) find failed on conn id = %d, supplier id = %d, type = %d\n", - forwarding_addr->proxy_id_, - forwarding_addr->supplier_id_, - forwarding_addr->type_)); - else - { - // Check to see if there are any consumers. - if (dispatch_set->size () == 0) - ACE_DEBUG ((LM_WARNING, - "there are no active consumers for this event currently\n")); - - else // There are consumers, so forward the event. - { - Consumer_Dispatch_Set_Iterator dsi (*dispatch_set); - - // At this point, we should assign a thread-safe locking - // strategy to the Message_Block is we're running in a - // multi-threaded configuration. - // data->locking_strategy (MB_Locking_Strategy::instance ()); - - for (Proxy_Handler **proxy_handler = 0; - dsi.next (proxy_handler) != 0; - dsi.advance ()) - { - // Only process active proxy_handlers. - if ((*proxy_handler)->state () == Proxy_Handler::ESTABLISHED) - { - // Duplicate the event portion via reference - // counting. - ACE_Message_Block *dup_msg = data->duplicate (); - - ACE_DEBUG ((LM_DEBUG, "(%t) forwarding to Consumer %d\n", - (*proxy_handler)->id ())); - - if ((*proxy_handler)->put (dup_msg) == -1) - { - if (errno == EWOULDBLOCK) // The queue has filled up! - ACE_ERROR ((LM_ERROR, "(%t) %p\n", - "gateway is flow controlled, so we're dropping events")); - else - ACE_ERROR ((LM_ERROR, "(%t) %p transmission error to peer %d\n", - "put", (*proxy_handler)->id ())); - - // We are responsible for releasing an - // ACE_Message_Block if failures occur. - dup_msg->release (); - } - } - } - } - } - - // Release the memory in the message block. - event->release (); - return 0; -} - -int -ACE_Event_Channel::svc (void) -{ - return 0; -} - -int -ACE_Event_Channel::initiate_proxy_connection (Proxy_Handler *proxy_handler, - ACE_Synch_Options &synch_options) -{ - return this->connector_.initiate_connection (proxy_handler, - synch_options); -} - -int -ACE_Event_Channel::complete_proxy_connection (Proxy_Handler *proxy_handler) -{ - int option = proxy_handler->proxy_role () == 'S' ? SO_RCVBUF : SO_SNDBUF; - int socket_queue_size = this->options ().socket_queue_size_; - - if (proxy_handler->peer ().set_option (SOL_SOCKET, - option, - &socket_queue_size, - sizeof (int)) == -1) - ACE_ERROR ((LM_ERROR, "(%t) %p\n", "set_option")); - - proxy_handler->thr_mgr (ACE_Service_Config::thr_mgr ()); - - // Our state is now "established." - proxy_handler->state (Proxy_Handler::ESTABLISHED); - - // Restart the timeout to 1. - proxy_handler->timeout (1); - - ACE_INT32 id = htonl (proxy_handler->id ()); - - // Send the connection id to the peerd. - - ssize_t n = proxy_handler->peer ().send ((const void *) &id, sizeof id); - - if (n != sizeof id) - ACE_ERROR_RETURN ((LM_ERROR, "(%t) %p\n", - n == 0 ? "peer has closed down unexpectedly" : "send"), - -1); - return 0; -} - -// Restart connection (blocking_semantics dicates whether we restart -// synchronously or asynchronously). - -int -ACE_Event_Channel::reinitiate_proxy_connection (Proxy_Handler *proxy_handler) -{ - // Skip over proxies with deactivated handles. - if (proxy_handler->get_handle () != ACE_INVALID_HANDLE) - { - // Make sure to close down peer to reclaim descriptor. - proxy_handler->peer ().close (); - - if (proxy_handler->state () != Proxy_Handler::DISCONNECTING) - { - ACE_DEBUG ((LM_DEBUG, - "(%t) scheduling reinitiation of Proxy_Handler %d\n", - proxy_handler->id ())); - - // Reschedule ourselves to try and connect again. - if (ACE_Service_Config::reactor ()->schedule_timer - (proxy_handler, 0, proxy_handler->timeout ()) == -1) - ACE_ERROR_RETURN ((LM_ERROR, "(%t) %p\n", - "schedule_timer"), -1); - } - } - return 0; -} - -// Initiate active connections with the Consumer and Supplier Peers. - -void -ACE_Event_Channel::initiate_connector (void) -{ - PROXY_MAP_ITERATOR cmi (this->proxy_map_); - - ACE_Synch_Options synch_options; - - if (this->options ().blocking_semantics_ == ACE_NONBLOCK) - synch_options = ACE_Synch_Options::asynch; - else - synch_options = ACE_Synch_Options::synch; - - // Iterate through the Consumer Map connecting all the - // Proxy_Handlers. - - for (PROXY_MAP_ENTRY *me = 0; - cmi.next (me) != 0; - cmi.advance ()) - { - Proxy_Handler *proxy_handler = me->int_id_; - - if (this->initiate_proxy_connection - (proxy_handler, synch_options) == -1) - continue; // Failures are handled elsewhere... - } -} - -// Initiate passive acceptor to wait for Consumer and Supplier Peers -// to accept. - -void -ACE_Event_Channel::initiate_acceptor (void) -{ - if (ACE_Service_Config::reactor ()->register_handler - (&this->acceptor_, ACE_Event_Handler::ACCEPT_MASK) == -1) - ACE_ERROR ((LM_ERROR, "%p\n", - "cannot register acceptor")); -} - -// This method gracefully shuts down all the Handlers in the -// Proxy_Handler Connection Map. - -int -ACE_Event_Channel::close (u_long) -{ - if (this->options ().threading_strategy_ != ACE_Event_Channel_Options::REACTIVE) - { - if (ACE_Service_Config::thr_mgr ()->suspend_all () == -1) - ACE_ERROR_RETURN ((LM_ERROR, "(%t) %p\n", "suspend_all"), -1); - ACE_DEBUG ((LM_DEBUG, "(%t) suspending all threads\n")); - } - - PROXY_MAP_ITERATOR cmi (this->proxy_map_); - - // Iterate over all the handlers and shut them down. - - for (PROXY_MAP_ENTRY *me; - cmi.next (me) != 0; - cmi.advance ()) - { - Proxy_Handler *proxy_handler = me->int_id_; - - ACE_DEBUG ((LM_DEBUG, "(%t) closing down connection %d\n", - proxy_handler->id ())); - - // Mark Proxy_Handler as DISCONNECTING so we don't try to - // reconnect... - proxy_handler->state (Proxy_Handler::DISCONNECTING); - - // Deallocate Proxy_Handler resources. - proxy_handler->destroy (); // Will trigger a delete. - } - - return 0; -} - -int -ACE_Event_Channel::find_proxy (ACE_INT32 proxy_id, - Proxy_Handler *&proxy_handler) -{ - return this->proxy_map_.find (proxy_id, proxy_handler); -} - -int -ACE_Event_Channel::bind_proxy (Proxy_Handler *proxy_handler) -{ - int result = this->proxy_map_.bind (proxy_handler->id (), proxy_handler); - - switch (result) - { - case -1: - ACE_ERROR_RETURN ((LM_ERROR, - "(%t) bind failed for connection %d\n", - proxy_handler->id ()), -1); - /* NOTREACHED */ - case 1: // Oops, found a duplicate! - ACE_ERROR_RETURN ((LM_ERROR, - "(%t) duplicate connection %d, already bound\n", - proxy_handler->id ()), -1); - /* NOTREACHED */ - case 0: - // Success. - return 0; - default: - ACE_ERROR_RETURN ((LM_DEBUG, - "(%t) invalid result %d\n", result), -1); - /* NOTREACHED */ - } -} - -int -ACE_Event_Channel::subscribe (const Event_Key &event_addr, - Consumer_Dispatch_Set *cds) -{ - int result = this->efd_.bind (event_addr, cds); - - // Bind with consumer map, keyed by peer address. - switch (result) - { - case -1: - ACE_ERROR_RETURN ((LM_ERROR, - "(%t) bind failed for connection %d\n", - event_addr.proxy_id_), -1); - /* NOTREACHED */ - case 1: // Oops, found a duplicate! - ACE_ERROR_RETURN ((LM_DEBUG, - "(%t) duplicate consumer map entry %d, " - "already bound\n", event_addr.proxy_id_), -1); - /* NOTREACHED */ - case 0: - // Success. - return 0; - default: - ACE_ERROR_RETURN ((LM_DEBUG, - "(%t) invalid result %d\n", result), -1); - /* NOTREACHED */ - } -} - -int -ACE_Event_Channel::open (void *) -{ - // Ignore SIPPIPE so each Consumer_Proxy can handle it. - ACE_Sig_Action sig (ACE_SignalHandler (SIG_IGN), SIGPIPE); - ACE_UNUSED_ARG (sig); - - if (this->options ().connector_role_) - // Actively initiate Peer connections. - this->initiate_connector (); - - if (this->options ().acceptor_role_) - // Passively initiate Peer acceptor. - this->initiate_acceptor (); - - // If we're not running reactively, then we need to make sure that - // <ACE_Message_Block> reference counting operations are - // thread-safe. Therefore, we create an <ACE_Lock_Adapter> that is - // parameterized by <REF_COUNT_MUTEX> to prevent race conditions. - if (this->options ().threading_strategy_ != ACE_Event_Channel_Options::REACTIVE) - ACE_NEW_RETURN (this->options ().locking_strategy_, - ACE_Lock_Adapter<REF_COUNT_MUTEX>, - -1); - return 0; -} - -#if defined (ACE_TEMPLATES_REQUIRE_SPECIALIZATION) -template class ACE_Lock_Adapter<REF_COUNT_MUTEX>; -template class ACE_Map_Iterator<ACE_INT32, Proxy_Handler *, MAP_MUTEX>; -template class ACE_Map_Manager<ACE_INT32, Proxy_Handler *, MAP_MUTEX>; -template class ACE_Message_Queue<ACE_NULL_SYNCH>; -#if defined (ACE_HAS_THREADS) -template class ACE_Task<ACE_SYNCH>; -#endif /* ACE_HAS_THREADS */ -template class ACE_Module<ACE_NULL_SYNCH>; -template class ACE_Task<ACE_NULL_SYNCH>; -template class ACE_Thru_Task<ACE_NULL_SYNCH>; -template class ACE_Unbounded_Set_Iterator<Proxy_Handler *>; -#endif /* ACE_TEMPLATES_REQUIRE_SPECIALIZATION */ |