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Diffstat (limited to 'TAO/ChangeLog')
| -rw-r--r-- | TAO/ChangeLog | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/TAO/ChangeLog b/TAO/ChangeLog index 4e496feaae7..dc8d83e493c 100644 --- a/TAO/ChangeLog +++ b/TAO/ChangeLog @@ -1,3 +1,61 @@ +Wed Feb 12 00:19:58 UTC 2003 Craig Rodrigues <crodrigu@bbn.com> + + * tao/RTCORBA/Linear_Priority_Mapping.cpp (to_CORBA): + Unconditionally display error message upon priority mapping failure. + * tao/RTCORBA/RT_Protocol_Hooks.cpp: Display errno value and message + if setting the native thread priority fails. + * tao/RTCORBA/RT_ORBInitiializer.h: + Create a new class member variable sched_policy_flags_. + The value of sched_policy_flags_ is a bitmask value that can be one of + THR_SCHED_RR, THR_SCHED_FIFO, THR_SCHED_DEFAULT, etc. + sched_policy_flags_ value is stored in the + TAO_ORB_Core TAO_ORB_Parameters structure. + In TAO_Thread_Lane::create_dynamic_threads(), the sched_policy_flags_ + is passed to the ACE_Task_Base::activate() call for creating new + threads for a RTCORBA thread pool. + + sched_policy_ is an integer value that can be one of + ACE_SCHED_RR, ACE_SCHED_FIFO, ACE_SCHED_OTHER, etc. This value + can be passed directly to the newly modified ACE_OS::thr_setpriority() + call. For POSIX pthreads, this value maps directly to the + policy parameter of the pthread_setschedparam() call. + ACE_SCHED_* values can also be passed directly to ACE_Sched_Params + for determining the minimum and maximum priority value for a particular + policy. + + * tao/RTCORBA/RT_ORBInitiializer.cpp: + Change all assignments of sched_policy_ variable to use + ACE_SCHED_* values and not THR_SCHED_* values. + In the TAO_RT_ORBInitializer constructor, set sched_policy_flags_ + to the appropriate THR_SCHED_* values depending on what ACE_SCHED_* + value is specified. + + In TAO_RT_ORBInitializer::pre_init(), pass sched_policy_flags_ + to orb_core()->orb_params()->sched_policy(), since this value + will be later used in the activate() call in + TAO_Thread_Lane::create_dynamic_threads(). + + At the end of TAO_RT_ORBInitializer::pre_init(), set the policy + of the ACE_Thread::self() to the policy specified by -ORBSchedPolicy, and + set the priority of ACE_Thread::self() to the lowest priority + of the specified policy. If this is not done, then errors will + occur on Linux, because the default policy in ACE_OS::thr_setprio() + is 0 (which maps to SCHED_OTHER), which will cause strange errors + when the scheduling policy is set to something else, like SCHED_RR. + + Since the return value of ACE_OS::thr_getprio() can be invalid for + a given policy, ie. 0 is valid for SCHED_OTHER, but invalid for + SCHED_RR, I then decided to set the priority to the minimum + priority of the policy/scheduling class. + + In addition, in RTPortableServer's + TAO_RT_Servant_Dispatcher::post_invoke() function, the priority + of the thread will be reset to what it was before the invocation. + This means that on platforms which use pthread_setschedparam(), + the initial priority and policy of the thread need to be + set to acceptable initial values, otherwise CORBA::DATA_CONVERSION + errors will be thrown in this TAO_RT_Servant_Dispatcher::post_invoke(). + Tue Feb 11 13:58:23 2003 Nanbor Wang <nanbor@cs.wustl.edu> * orbsvcs/vc7_orbsvcs.mwc: Added this temporary file that |