diff options
Diffstat (limited to 'ACE/TAO/orbsvcs/orbsvcs/PortableGroup/UIPMC_Mcast_Connection_Handler.cpp')
-rw-r--r-- | ACE/TAO/orbsvcs/orbsvcs/PortableGroup/UIPMC_Mcast_Connection_Handler.cpp | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/ACE/TAO/orbsvcs/orbsvcs/PortableGroup/UIPMC_Mcast_Connection_Handler.cpp b/ACE/TAO/orbsvcs/orbsvcs/PortableGroup/UIPMC_Mcast_Connection_Handler.cpp new file mode 100644 index 00000000000..f9af18c659e --- /dev/null +++ b/ACE/TAO/orbsvcs/orbsvcs/PortableGroup/UIPMC_Mcast_Connection_Handler.cpp @@ -0,0 +1,238 @@ +// This may look like C, but it's really -*- C++ -*- +// +// $Id$ + + +#include "orbsvcs/PortableGroup/UIPMC_Mcast_Connection_Handler.h" +#include "orbsvcs/PortableGroup/UIPMC_Endpoint.h" + +#include "tao/Timeprobe.h" +#include "tao/debug.h" +#include "tao/ORB_Core.h" +#include "tao/ORB.h" +#include "tao/CDR.h" +#include "tao/Server_Strategy_Factory.h" +#include "tao/Transport_Cache_Manager.h" +#include "tao/Thread_Lane_Resources.h" +#include "tao/Base_Transport_Property.h" +#include "tao/Resume_Handle.h" +#include "tao/Protocols_Hooks.h" + + +ACE_RCSID(PortableGroup, + UIPMC_Mcast_Connection_Handler, + "$Id$") + +TAO_BEGIN_VERSIONED_NAMESPACE_DECL + +TAO_UIPMC_Mcast_Connection_Handler::TAO_UIPMC_Mcast_Connection_Handler ( + ACE_Thread_Manager *t) + : TAO_UIPMC_MCAST_SVC_HANDLER (t, 0 , 0), + TAO_Connection_Handler (0) +{ + // This constructor should *never* get called, it is just here to + // make the compiler happy: the default implementation of the + // Creation_Strategy requires a constructor with that signature, we + // don't use that implementation, but some (most?) compilers + // instantiate it anyway. + ACE_ASSERT (0); +} + +TAO_UIPMC_Mcast_Connection_Handler::TAO_UIPMC_Mcast_Connection_Handler ( + TAO_ORB_Core *orb_core) + : TAO_UIPMC_MCAST_SVC_HANDLER (orb_core->thr_mgr (), 0, 0), + TAO_Connection_Handler (orb_core) +{ + UIPMC_MULTICAST_TRANSPORT* specific_transport = 0; + ACE_NEW(specific_transport, + UIPMC_MULTICAST_TRANSPORT (this, orb_core)); + + // store this pointer (indirectly increment ref count) + this->transport (specific_transport); +} + +TAO_UIPMC_Mcast_Connection_Handler::~TAO_UIPMC_Mcast_Connection_Handler (void) +{ + delete this->transport (); + int const result = + this->release_os_resources (); + + if (result == -1 && TAO_debug_level) + { + ACE_ERROR ((LM_ERROR, + ACE_TEXT("TAO (%P|%t) - UIPMC_Mcast_Connection_Handler::") + ACE_TEXT("~UIPMC_Mcast_Connection_Handler, ") + ACE_TEXT("release_os_resources() failed %m\n"))); + } +} + +const ACE_INET_Addr & +TAO_UIPMC_Mcast_Connection_Handler::addr (void) +{ + return this->addr_; +} + +void +TAO_UIPMC_Mcast_Connection_Handler::addr (const ACE_INET_Addr &addr) +{ + this->addr_ = addr; +} + +const ACE_INET_Addr & +TAO_UIPMC_Mcast_Connection_Handler::local_addr (void) +{ + return local_addr_; +} + +void +TAO_UIPMC_Mcast_Connection_Handler::local_addr (const ACE_INET_Addr &addr) +{ + local_addr_ = addr; +} + +ssize_t +TAO_UIPMC_Mcast_Connection_Handler::send (const iovec [], + int, + const ACE_Addr &, + int) const +{ + ACE_ASSERT (0); + return -1; +} + +int +TAO_UIPMC_Mcast_Connection_Handler::open_handler (void *v) +{ + return this->open (v); +} + +int +TAO_UIPMC_Mcast_Connection_Handler::open (void*) +{ + this->peer ().join (this->local_addr_); + + if (TAO_debug_level > 5) + { + ACE_DEBUG ((LM_DEBUG, + ACE_TEXT("TAO (%P|%t) - UIPMC_Mcast_Connection_Handler::open_server, ") + ACE_TEXT("subcribed to multicast group at %s:%d\n"), + this->local_addr_.get_host_addr (), + this->local_addr_.get_port_number () + )); + } + + this->transport ()->id ((size_t) this->peer ().get_handle ()); + + return 0; +} + +int +TAO_UIPMC_Mcast_Connection_Handler::resume_handler (void) +{ + return ACE_Event_Handler::ACE_APPLICATION_RESUMES_HANDLER; +} + +int +TAO_UIPMC_Mcast_Connection_Handler::close_connection (void) +{ + return this->close_connection_eh (this); +} + +int +TAO_UIPMC_Mcast_Connection_Handler::handle_input (ACE_HANDLE h) +{ + return this->handle_input_eh (h, this); +} + +int +TAO_UIPMC_Mcast_Connection_Handler::handle_output (ACE_HANDLE handle) +{ + int result = + this->handle_output_eh (handle, this); + + if (result == -1) + { + this->close_connection (); + return 0; + } + + return result; +} + +int +TAO_UIPMC_Mcast_Connection_Handler::handle_timeout (const ACE_Time_Value &, + const void *) +{ + // Using this to ensure this instance will be deleted (if necessary) + // only after reset_state(). Without this, when this refcount==1 - + // the call to close() will cause a call to remove_reference() which + // will delete this. At that point this->reset_state() is in no + // man's territory and that causes SEGV on some platforms (Windows!) + + TAO_Auto_Reference<TAO_UIPMC_Mcast_Connection_Handler> safeguard (*this); + + // NOTE: Perhaps not the best solution, as it feels like the upper + // layers should be responsible for this? + + // We don't use this upcall for I/O. This is only used by the + // Connector to indicate that the connection timedout. Therefore, + // we should call close(). + int ret = this->close (); + this->reset_state (TAO_LF_Event::LFS_TIMEOUT); + return ret; +} + +int +TAO_UIPMC_Mcast_Connection_Handler::handle_close (ACE_HANDLE, + ACE_Reactor_Mask) +{ + // No asserts here since the handler is registered with the Reactor + // and the handler ownership is given to the Reactor. When the + // Reactor closes, it will call handle_close() on the handler. It + // is however important to overwrite handle_close() to do nothing + // since the base class does too much. + return 0; +} + +int +TAO_UIPMC_Mcast_Connection_Handler::close (u_long flags) +{ + return this->close_handler (flags); +} + +int +TAO_UIPMC_Mcast_Connection_Handler::release_os_resources (void) +{ + return this->peer ().close (); +} + +int +TAO_UIPMC_Mcast_Connection_Handler::add_transport_to_cache (void) +{ + ACE_INET_Addr addr; + + // This function is called by the acceptor to add this + // transport to the transport cache. This is really + // important for proper shutdown. The address used + // is irrelevent, since UIPMC is connectionless. + + // Construct a UIPMC_Endpoint object. + TAO_UIPMC_Endpoint endpoint (addr); + + // Construct a property object + TAO_Base_Transport_Property prop (&endpoint); + + // Add the handler to Cache + return this->orb_core ()->lane_resources () + .transport_cache ().cache_transport (&prop, + this->transport ()); +} + +int +TAO_UIPMC_Mcast_Connection_Handler::handle_write_ready + (const ACE_Time_Value *t) +{ + return ACE::handle_write_ready (this->peer ().get_handle (), t); +} + +TAO_END_VERSIONED_NAMESPACE_DECL |