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// $Id$
#include "orbsvcs/Time_Utilities.h"
#include "orbsvcs/Runtime_Scheduler.h"
#if defined (__ACE_INLINE__)
#include "orbsvcs/Runtime_Scheduler.i"
#endif /* __ACE_INLINE__ */
ACE_RCSID(orbsvcs, Runtime_Scheduler, "$Id$")
ACE_Runtime_Scheduler::
ACE_Runtime_Scheduler (int config_count,
ACE_Scheduler_Factory::POD_Config_Info config_info[],
int entry_count,
ACE_Scheduler_Factory::POD_RT_Info rt_info[])
: config_count_ (config_count)
, config_info_ (config_info)
, entry_count_ (entry_count)
, rt_info_ (rt_info)
{
}
RtecScheduler::handle_t
ACE_Runtime_Scheduler::create (const char * entry_point,
CORBA::Environment &_env)
TAO_THROW_SPEC ((CORBA::SystemException,
RtecScheduler::DUPLICATE_NAME))
{
// Just make sure its there and returns its handle (position).
int i;
for (i = 0; i < entry_count_; ++i)
{
if (strcmp (entry_point, rt_info_[i].entry_point) == 0)
{
return i;
}
}
// TODO: throw an exception or print an error.
return -1;
}
RtecScheduler::handle_t
ACE_Runtime_Scheduler::lookup (const char * entry_point,
CORBA::Environment &_env)
TAO_THROW_SPEC ((CORBA::SystemException))
{
return create (entry_point, _env);
}
RtecScheduler::RT_Info*
ACE_Runtime_Scheduler::get (RtecScheduler::handle_t handle,
CORBA::Environment &_env)
TAO_THROW_SPEC((CORBA::SystemException,
RtecScheduler::UNKNOWN_TASK))
{
if (handle < 0 || handle > entry_count_)
{
TAO_THROW_RETURN (RtecScheduler::UNKNOWN_TASK(), 0);
}
// Note: there is no memory leak here, according to the CORBA spec,
// we are supposed to allocate an structure and return it, the
// caller owns it from then on.
RtecScheduler::RT_Info* info = new RtecScheduler::RT_Info;
info->entry_point = rt_info_[handle].entry_point;
info->handle = rt_info_[handle].handle;
info->worst_case_execution_time = rt_info_[handle].worst_case_execution_time;
info->typical_execution_time = rt_info_[handle].typical_execution_time;
info->cached_execution_time = rt_info_[handle].cached_execution_time;
info->period = rt_info_[handle].period;
info->criticality = RtecScheduler::Criticality(rt_info_[handle].criticality);
info->importance = RtecScheduler::Importance(rt_info_[handle].importance);
info->quantum = rt_info_[handle].quantum;
info->threads = rt_info_[handle].threads;
info->priority = rt_info_[handle].priority;
info->preemption_subpriority = rt_info_[handle].static_subpriority;
info->preemption_priority = rt_info_[handle].preemption_priority;
info->info_type = RtecScheduler::Info_Type(rt_info_[handle].info_type);
return info;
}
void ACE_Runtime_Scheduler::set (RtecScheduler::handle_t handle,
RtecScheduler::Criticality criticality,
RtecScheduler::Time time,
RtecScheduler::Time typical_time,
RtecScheduler::Time cached_time,
RtecScheduler::Period period,
RtecScheduler::Importance importance,
RtecScheduler::Quantum quantum,
CORBA::Long threads,
RtecScheduler::Info_Type info_type,
CORBA::Environment &_env)
TAO_THROW_SPEC ((CORBA::SystemException,
RtecScheduler::UNKNOWN_TASK))
{
// We compare the values with the ones stored and print a message on
// any differences.
if (handle < 0 || handle > entry_count_)
{
TAO_THROW (RtecScheduler::UNKNOWN_TASK());
// NOTREACHED
}
if (rt_info_[handle].worst_case_execution_time != time
|| rt_info_[handle].typical_execution_time != typical_time
|| rt_info_[handle].cached_execution_time != cached_time
|| rt_info_[handle].period != period
|| rt_info_[handle].criticality != criticality
|| rt_info_[handle].importance != importance
|| rt_info_[handle].quantum != quantum
|| rt_info_[handle].info_type != info_type
|| rt_info_[handle].threads != threads)
{
ACE_ERROR ((LM_ERROR, "invalid data for RT_Info: %s\n",
(const char*)rt_info_[handle].entry_point));
// TODO: throw something here.
}
}
void ACE_Runtime_Scheduler::priority (RtecScheduler::handle_t handle,
RtecScheduler::OS_Priority& priority,
RtecScheduler::Preemption_Subpriority& subpriority,
RtecScheduler::Preemption_Priority& p_priority,
CORBA::Environment &_env)
TAO_THROW_SPEC ((CORBA::SystemException,
RtecScheduler::UNKNOWN_TASK,
RtecScheduler::NOT_SCHEDULED))
{
if (handle < 0 || handle > entry_count_)
{
TAO_THROW (RtecScheduler::UNKNOWN_TASK());
// NOTREACHED
}
priority = rt_info_[handle].priority;
subpriority = rt_info_[handle].static_subpriority;
p_priority = rt_info_[handle].preemption_priority;
// ACE_DEBUG ((LM_DEBUG, "(%t) Returning priority %d\n", priority));
}
void ACE_Runtime_Scheduler::entry_point_priority (const char * entry_point,
RtecScheduler::OS_Priority& priority,
RtecScheduler::Preemption_Subpriority& subpriority,
RtecScheduler::Preemption_Priority& p_priority,
CORBA::Environment &_env)
TAO_THROW_SPEC((CORBA::SystemException,
RtecScheduler::UNKNOWN_TASK,
RtecScheduler::NOT_SCHEDULED))
{
RtecScheduler::handle_t handle = lookup (entry_point, _env);
if (handle < -1)
{
// The exception was thrown or is in _env already.
return;
}
this->priority (handle, priority, subpriority, p_priority, _env);
}
void ACE_Runtime_Scheduler::add_dependency (RtecScheduler::handle_t handle,
RtecScheduler::handle_t dependency,
CORBA::Long number_of_calls,
RtecScheduler::Dependency_Type
dependency_type,
CORBA::Environment &_env)
TAO_THROW_SPEC ((CORBA::SystemException,
RtecScheduler::UNKNOWN_TASK))
{
if (handle < 0 || handle > entry_count_)
{
TAO_THROW (RtecScheduler::UNKNOWN_TASK());
// NOTREACHED
}
#if 0
// Just check that the information is consistent.
RtecScheduler::Dependency_Set& deps = rt_info_[handle]->dependencies;
for (CORBA::ULong i = 0; i < deps.length (); ++i)
{
if (deps[i].rt_info == dependency
&& deps[i].number_of_calls == number_of_calls
&& deps[i].dependency_type == dependency_type)
{
return;
}
}
ACE_ERROR ((LM_ERROR, "unmatched dependency on %s\n",
(const char*)rt_info_[handle]->entry_point));
#endif
}
void ACE_Runtime_Scheduler::compute_scheduling (CORBA::Long minimum_priority,
CORBA::Long maximum_priority,
RtecScheduler::RT_Info_Set_out infos,
RtecScheduler::Config_Info_Set_out configs,
CORBA::Environment &_env)
TAO_THROW_SPEC ((CORBA::SystemException,
RtecScheduler::UTILIZATION_BOUND_EXCEEDED,
RtecScheduler::INSUFFICIENT_THREAD_PRIORITY_LEVELS,
RtecScheduler::TASK_COUNT_MISMATCH))
{
// TODO: Right now just do nothing, later we could validate the
// priorities (without recomputing).
// TODO: fill up the infos.
return;
}
void ACE_Runtime_Scheduler::dispatch_configuration(RtecScheduler::Preemption_Priority p_priority,
RtecScheduler::OS_Priority& priority,
RtecScheduler::Dispatching_Type & d_type,
CORBA::Environment &_env)
TAO_THROW_SPEC ((CORBA::SystemException,
RtecScheduler::NOT_SCHEDULED,
RtecScheduler::UNKNOWN_PRIORITY_LEVEL))
{
// throw an exception if a valid schedule has not been loaded
if (config_count_ <= 0 ||
config_info_ [p_priority].preemption_priority != p_priority)
{
TAO_THROW (RtecScheduler::NOT_SCHEDULED());
ACE_NOTREACHED (return);
}
// throw an exception if an invalid priority was passed
else if (p_priority < 0 || p_priority >= config_count_)
{
TAO_THROW (RtecScheduler::UNKNOWN_PRIORITY_LEVEL());
ACE_NOTREACHED (return);
}
else
{
priority = config_info_ [p_priority].thread_priority;
d_type = config_info_ [p_priority].dispatching_type;
return;
}
}
// provide the thread priority and queue type for the given priority level
RtecScheduler::Preemption_Priority
ACE_Runtime_Scheduler::last_scheduled_priority (CORBA::Environment &_env)
TAO_THROW_SPEC ((CORBA::SystemException,
RtecScheduler::NOT_SCHEDULED))
{
// throw an exception if a valid schedule has not been loaded
if (config_count_ <= 0)
{
TAO_THROW_RETURN (RtecScheduler::NOT_SCHEDULED(),
(RtecScheduler::Preemption_Priority) -1);
}
else
{
return (RtecScheduler::Preemption_Priority) (config_count_ - 1);
}
}
// Returns the last priority number assigned to an operation in the schedule.
// The number returned is one less than the total number of scheduled priorities.
// All scheduled priorities range from 0 to the number returned, inclusive.
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