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#include "tao/RTPortableServer/RT_Servant_Dispatcher.h"
#if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
#include "tao/RTPortableServer/RT_POA.h"
#include "tao/ORB_Core.h"
#include "tao/ORB_Core_TSS_Resources.h"
#include "tao/TAO_Server_Request.h"
#include "tao/Transport.h"
#include "tao/Connection_Handler.h"
#include "tao/Service_Context.h"
#include "tao/Protocols_Hooks.h"
#include "tao/debug.h"
#include "tao/CDR.h"
#include "tao/RTCORBA/Thread_Pool.h"
#include "ace/OS_NS_stdio.h"
#include "ace/OS_NS_string.h"
ACE_RCSID (RTPortableServer,
RT_Servant_Dispatcher,
"$Id$")
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO_RT_Servant_Dispatcher::~TAO_RT_Servant_Dispatcher (void)
{
}
void
TAO_RT_Servant_Dispatcher::pre_invoke_remote_request (
TAO_Root_POA &poa,
CORBA::Short servant_priority,
TAO_ServerRequest &req,
TAO::Portable_Server::Servant_Upcall::Pre_Invoke_State &pre_invoke_state
)
{
TAO_Service_Context &request_service_context =
req.request_service_context ();
TAO_Service_Context &reply_service_context = req.reply_service_context ();
TAO_Thread_Pool *thread_pool =
static_cast <TAO_Thread_Pool *> (poa.thread_pool ());
if (thread_pool != 0 &&
thread_pool->with_lanes ())
{
//
// We don't mess with the priority of threads in lanes.
//
if (TAO_debug_level > 0)
{
// Get the ORB_Core's TSS resources.
TAO_ORB_Core_TSS_Resources *tss =
poa.orb_core ().get_tss_resources ();
/// Get the lane attribute in TSS.
TAO_Thread_Lane *lane =
static_cast<TAO_Thread_Lane *> (tss->lane_);
ACE_ASSERT (lane->pool ().id () ==
thread_pool->id ());
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("Using thread pool with lane ")
ACE_TEXT ("(%P|%t|%d|%d): original thread ")
ACE_TEXT ("CORBA/native priority %d/%d not changed\n"),
lane->pool ().id (),
lane->id (),
lane->lane_priority (),
lane->native_priority ()));
}
return;
}
// Remember current thread's priority.
TAO_Protocols_Hooks *tph = poa.orb_core ().get_protocols_hooks ();
const char *priority_model = 0;
RTCORBA::Priority target_priority = TAO_INVALID_PRIORITY;
// NOT_SPECIFIED PriorityModel processing.
if (poa.priority_model () ==
TAO::Portable_Server::Cached_Policies::NOT_SPECIFIED)
{
priority_model = "RTCORBA::NOT_SPECIFIED";
}
// CLIENT_PROPAGATED PriorityModel processing.
else if (poa.priority_model () ==
TAO::Portable_Server::Cached_Policies::CLIENT_PROPAGATED)
{
priority_model = "RTCORBA::CLIENT_PROPAGATED";
// Attempt to extract client-propagated priority from the
// ServiceContextList of the request.
const IOP::ServiceContext *context;
if (request_service_context.get_context (IOP::RTCorbaPriority,
&context) == 1)
{
// Extract the target priority
TAO_InputCDR cdr (reinterpret_cast
<const char*>
(context->context_data.get_buffer ()),
context->context_data.length ());
CORBA::Boolean byte_order;
if ((cdr >> ACE_InputCDR::to_boolean (byte_order)) == 0)
throw ::CORBA::MARSHAL ();
cdr.reset_byte_order (static_cast<int> (byte_order));
if ((cdr >> target_priority) == 0)
throw ::CORBA::MARSHAL ();
// Save the target priority in the response service
// context to propagate back to the client as specified
// by the RTCORBA specification.
reply_service_context.set_context (*context);
}
else
{
// Use default priority if none came in the request.
// (Request must have come from a non-RT ORB.)
target_priority = poa.server_priority ();
}
}
else
// SERVER_DECLARED PriorityModel processing.
{
priority_model = "RTCORBA::SERVER_DECLARED";
// Use the request associated with the servant.
target_priority = servant_priority;
}
char thread_pool_id[BUFSIZ];
if (TAO_debug_level > 0)
{
if (thread_pool == 0)
ACE_OS::strcpy (thread_pool_id,
"default thread pool");
else
ACE_OS::sprintf (thread_pool_id,
"thread pool %d",
thread_pool->id ());
}
// Target priority is invalid.
if (target_priority == TAO_INVALID_PRIORITY)
{
if (TAO_debug_level > 0)
{
// If we are in a multi-threaded configuration, print out the current
// thread priority.
#if defined (ACE_HAS_THREADS)
if (tph->get_thread_CORBA_and_native_priority (
pre_invoke_state.original_CORBA_priority_,
pre_invoke_state.original_native_priority_
) == -1)
throw ::CORBA::DATA_CONVERSION (CORBA::OMGVMCID | 2,
CORBA::COMPLETED_NO);
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t): %s processing using %s ")
ACE_TEXT ("original thread CORBA/native priority %d/%d ")
ACE_TEXT ("not changed\n"),
ACE_TEXT_CHAR_TO_TCHAR (priority_model),
ACE_TEXT_CHAR_TO_TCHAR (thread_pool_id),
pre_invoke_state.original_CORBA_priority_,
pre_invoke_state.original_native_priority_));
// If we are in a single-threaded configuration, we cannot get the
// current thread priority. Therefore, print out a simpler message.
#else /* ACE_HAS_THREADS */
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t): %s processing using %s ")
ACE_TEXT ("original thread CORBA/native priority ")
ACE_TEXT ("not changed\n"),
ACE_TEXT_CHAR_TO_TCHAR (priority_model),
ACE_TEXT_CHAR_TO_TCHAR (thread_pool_id)));
#endif /* ACE_HAS_THREADS */
}
}
else
{
// Get the current thread's priority.
if (tph->get_thread_CORBA_and_native_priority (
pre_invoke_state.original_CORBA_priority_,
pre_invoke_state.original_native_priority_
) == -1)
throw ::CORBA::DATA_CONVERSION (CORBA::OMGVMCID | 2,
CORBA::COMPLETED_NO);
// Priority needs to be changed temporarily changed for the
// duration of request.
if (target_priority != pre_invoke_state.original_CORBA_priority_)
{
if (tph->set_thread_CORBA_priority (target_priority) == -1)
throw ::CORBA::DATA_CONVERSION (CORBA::OMGVMCID | 2,
CORBA::COMPLETED_NO);
pre_invoke_state.state_ =
TAO::Portable_Server::Servant_Upcall::Pre_Invoke_State::PRIORITY_RESET_REQUIRED;
if (TAO_debug_level > 0)
{
CORBA::Short native_priority;
tph->get_thread_native_priority (native_priority
);
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("%s processing using %s ")
ACE_TEXT ("(%P|%t): original thread CORBA/native priority %d/%d ")
ACE_TEXT ("temporarily changed to CORBA/native priority %d/%d\n"),
ACE_TEXT_CHAR_TO_TCHAR (priority_model),
ACE_TEXT_CHAR_TO_TCHAR (thread_pool_id),
pre_invoke_state.original_CORBA_priority_,
pre_invoke_state.original_native_priority_,
target_priority,
native_priority));
}
}
// No change in priority required.
else
{
if (TAO_debug_level > 0)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("%s processing using %s ")
ACE_TEXT ("(%P|%t): original thread CORBA/native priority %d/%d ")
ACE_TEXT ("is the same as the target priority\n"),
ACE_TEXT_CHAR_TO_TCHAR (priority_model),
ACE_TEXT_CHAR_TO_TCHAR (thread_pool_id),
pre_invoke_state.original_CORBA_priority_,
pre_invoke_state.original_native_priority_));
}
}
}
CORBA::Policy_var policy =
poa.policies ().get_cached_policy (
TAO_CACHED_POLICY_RT_SERVER_PROTOCOL
);
CORBA::Boolean set_server_network_priority =
tph->set_server_network_priority (req.transport ()->tag (),
policy.in ()
);
TAO_Connection_Handler *connection_handler =
req.transport ()->connection_handler ();
connection_handler->set_dscp_codepoint (set_server_network_priority);
}
void
TAO_RT_Servant_Dispatcher::pre_invoke_collocated_request (TAO_Root_POA &poa,
CORBA::Short servant_priority,
TAO::Portable_Server::Servant_Upcall::Pre_Invoke_State &pre_invoke_state
)
{
TAO_Thread_Pool *thread_pool =
static_cast <TAO_Thread_Pool *> (poa.thread_pool ());
if (thread_pool == 0 ||
thread_pool->with_lanes ())
{
//
// We don't mess with the priority of threads in lanes or for
// the default thread pool.
//
return;
}
if (poa.priority_model () !=
TAO::Portable_Server::Cached_Policies::SERVER_DECLARED ||
servant_priority == TAO_INVALID_PRIORITY)
{
//
// We either don't have server declared model or servant
// priority is invalid.
//
return;
}
//
// SERVER_DECLARED PriorityModel processing.
//
// Remember current thread's priority.
TAO_Protocols_Hooks *tph = poa.orb_core ().get_protocols_hooks ();
if (tph->get_thread_CORBA_and_native_priority (
pre_invoke_state.original_CORBA_priority_,
pre_invoke_state.original_native_priority_) == -1)
throw ::CORBA::DATA_CONVERSION (CORBA::OMGVMCID | 2, CORBA::COMPLETED_NO);
// Change the priority of the current thread for the duration of
// request.
if (servant_priority != pre_invoke_state.original_CORBA_priority_)
{
if (tph->set_thread_CORBA_priority (servant_priority) == -1)
throw ::CORBA::DATA_CONVERSION (CORBA::OMGVMCID | 2, CORBA::COMPLETED_NO);
pre_invoke_state.state_ =
TAO::Portable_Server::Servant_Upcall::Pre_Invoke_State::PRIORITY_RESET_REQUIRED;
}
}
void
TAO_RT_Servant_Dispatcher::post_invoke (TAO_Root_POA &poa,
TAO::Portable_Server::Servant_Upcall::Pre_Invoke_State &pre_invoke_state)
{
if (pre_invoke_state.state_ ==
TAO::Portable_Server::Servant_Upcall::Pre_Invoke_State::PRIORITY_RESET_REQUIRED)
{
pre_invoke_state.state_ =
TAO::Portable_Server::Servant_Upcall::Pre_Invoke_State::NO_ACTION_REQUIRED;
try
{
// Reset the priority of the current thread back to its original
// value.
TAO_Protocols_Hooks *tph =
poa.orb_core ().get_protocols_hooks ();
if (tph->set_thread_native_priority (
pre_invoke_state.original_native_priority_)
== -1)
throw ::CORBA::DATA_CONVERSION (CORBA::OMGVMCID | 2,
CORBA::COMPLETED_NO);
}
catch ( ::CORBA::Exception& ex)
{
// Eat up the exception.
ACE_PRINT_EXCEPTION (ex,
"Exception caught: TAO - "
"Priority_Model_Processing::"
"~Priority_Model_Processing");
}
}
}
TAO_Root_POA *
TAO_RT_Servant_Dispatcher::create_Root_POA (const ACE_CString &name,
PortableServer::POAManager_ptr poa_manager,
const TAO_POA_Policy_Set &policies,
ACE_Lock &lock,
TAO_SYNCH_MUTEX &thread_lock,
TAO_ORB_Core &orb_core,
TAO_Object_Adapter *object_adapter
)
{
TAO_RT_POA *poa = 0;
ACE_NEW_THROW_EX (poa,
TAO_RT_POA (name,
poa_manager,
policies,
0,
lock,
thread_lock,
orb_core,
object_adapter
),
CORBA::NO_MEMORY ());
return poa;
}
TAO_END_VERSIONED_NAMESPACE_DECL
#endif /* TAO_HAS_CORBA_MESSAGING && TAO_HAS_CORBA_MESSAGING != 0 */
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