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// -*- C++ -*-
//=============================================================================
/**
* @file Runtime_Scheduler.h
*
* $Id$
*
* @author Chris Gill <cdgill@cs.wustl.edu>
*/
//=============================================================================
#ifndef ACE_RUNTIME_SCHEDULER_H
#define ACE_RUNTIME_SCHEDULER_H
#include /**/ "ace/pre.h"
#include "orbsvcs/Scheduler_Factory.h"
#include "orbsvcs/RtecSchedulerS.h"
#include "orbsvcs/Sched/sched_export.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
/**
* @class ACE_Runtime_Scheduler
*
* @brief A fast and simple servant for RtecScheduler::Scheduler based on
* precomputed schedules.
*
* This class offers the services of the scheduler, but based on
* precomputed and precompiled information. This results in a
* highly optimized execution after the configuration runs.
*/
class TAO_RTSched_Export ACE_Runtime_Scheduler : public POA_RtecScheduler::Scheduler
{
public:
/// Constructor. Initialize the data from the POD_RT_Info array.
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[]);
/**
* Create an RT_Info. In the config run scheduler this actually constructs
* a new RT_Info. Here, we just return its handle, or an error value if
* it's not present.
*/
virtual RtecScheduler::handle_t create (const char * entry_point);
/// Lookup a handle for an RT_Info, and return its handle, or an error
/// value if it's not present.
virtual RtecScheduler::handle_t lookup (const char * entry_point);
/// Return a pointer to the RT_Info corresponding to the passed handle.
virtual RtecScheduler::RT_Info* get (RtecScheduler::handle_t handle);
/// Set characteristics of the RT_Info corresponding to the passed handle.
virtual void set (::RtecScheduler::handle_t handle,
::RtecScheduler::Criticality_t criticality,
::RtecScheduler::Time time,
::RtecScheduler::Time typical_time,
::RtecScheduler::Time cached_time,
::RtecScheduler::Period_t period,
::RtecScheduler::Importance_t importance,
::RtecScheduler::Quantum_t quantum,
::RtecScheduler::Threads_t threads,
::RtecScheduler::Info_Type_t info_type);
/// Reset characteristics of the RT_Info corresponding to the passed handle.
virtual void reset (RtecScheduler::handle_t handle,
RtecScheduler::Criticality_t criticality,
RtecScheduler::Time time,
RtecScheduler::Time typical_time,
RtecScheduler::Time cached_time,
RtecScheduler::Period_t period,
RtecScheduler::Importance_t importance,
RtecScheduler::Quantum_t quantum,
RtecScheduler::Threads_t threads,
RtecScheduler::Info_Type_t info_type);
/// Set characteristics of the RT_Infos corresponding to the passed handles.
/// Tuples are added in the case of existing and/or multiple definitions.
virtual void set_seq (const RtecScheduler::RT_Info_Set& infos);
/// Replace characteristics of the RT_Infos corresponding to the
/// passed handles.
virtual void replace_seq (const RtecScheduler::RT_Info_Set& infos);
/// Reset characteristics of the RT_Infos corresponding to the passed handles.
/// Tuples are replaced in the case of existing and/or multiple definitions.
virtual void reset_seq (const RtecScheduler::RT_Info_Set& infos);
/// Returns the priority and subpriority values assigned to an RT_Info,
/// based on its handle.
virtual void priority (RtecScheduler::handle_t handle,
RtecScheduler::OS_Priority& o_priority,
RtecScheduler::Preemption_Subpriority_t& p_subpriority,
RtecScheduler::Preemption_Priority_t& p_priority);
/// Returns the priority and subpriority values assigned to an RT_Info,
/// based on its entry point name.
virtual void entry_point_priority (const char * entry_point,
RtecScheduler::OS_Priority& o_priority,
RtecScheduler::Preemption_Subpriority_t& p_subpriority,
RtecScheduler::Preemption_Priority_t& p_priority);
/// In the config run scheduler, this method registers a dependency between
/// two RT_Infos. In the run time scheduler, this is a no-op.
virtual void add_dependency (RtecScheduler::handle_t handle,
RtecScheduler::handle_t dependency,
CORBA::Long number_of_calls,
RtecScheduler::Dependency_Type_t dependency_type);
/// In the reconfig scheduler, this method removes a dependency between
/// two RT_Infos. In the run time scheduler, this is a no-op.
virtual void remove_dependency (RtecScheduler::handle_t handle,
RtecScheduler::handle_t dependency,
CORBA::Long number_of_calls,
RtecScheduler::Dependency_Type_t dependency_type);
/// In the reconfig scheduler, this method (re)enabes a dependency between
/// two RT_Infos. In the run time scheduler, this is a no-op.
virtual void set_dependency_enable_state (RtecScheduler::handle_t handle,
RtecScheduler::handle_t dependency,
CORBA::Long number_of_calls,
RtecScheduler::Dependency_Type_t dependency_type,
RtecScheduler::Dependency_Enabled_Type_t enabled);
/// In the reconfig scheduler, enables or disables an RT_Info.
/// In the run time scheduler, this is a no-op.
virtual void set_rt_info_enable_state (RtecScheduler::handle_t handle,
RtecScheduler::RT_Info_Enabled_Type_t enabled);
/// This method sets the enable state of a sequence of dependencies.
virtual void set_dependency_enable_state_seq (const RtecScheduler::Dependency_Set & dependencies);
/// This method enables or disables a sequence of RT_Infos.
virtual void set_rt_info_enable_state_seq (const RtecScheduler::RT_Info_Enable_State_Pair_Set & pair_set);
/**
* In the config run scheduler, this method causes scheduling information
* to be computed for all registered RT_Infos. In the run time scheduler,
* this is a no-op.
*/
virtual void compute_scheduling (CORBA::Long minimum_priority,
CORBA::Long maximum_priority,
RtecScheduler::RT_Info_Set_out infos,
RtecScheduler::Dependency_Set_out deps,
RtecScheduler::Config_Info_Set_out configs,
RtecScheduler::Scheduling_Anomaly_Set_out anomalies);
/// Recomputes the scheduling priorities, etc.
virtual void recompute_scheduling (CORBA::Long minimum_priority,
CORBA::Long maximum_priority,
RtecScheduler::Scheduling_Anomaly_Set_out anomalies);
/// Returns the set of rt_infos, with their assigned priorities (as
/// of the last schedule re-computation).
virtual void get_rt_info_set (RtecScheduler::RT_Info_Set_out infos);
/// Returns the set of rt_infos, with their assigned priorities (as
/// of the last schedule re-computation).
virtual void get_dependency_set (RtecScheduler::Dependency_Set_out dependencies);
/// Returns the set of config_infos, describing the appropriate
/// number, types, and priority levels for the dispatching lanes.
virtual void get_config_info_set (RtecScheduler::Config_Info_Set_out configs);
/// Provides the thread priority and queue type for the given priority level.
virtual void dispatch_configuration (RtecScheduler::Preemption_Priority_t p_priority,
RtecScheduler::OS_Priority& o_priority,
RtecScheduler::Dispatching_Type_t & d_type);
/**
* 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.
*/
virtual RtecScheduler::Preemption_Priority_t last_scheduled_priority (void);
virtual void get_config_infos (RtecScheduler::Config_Info_Set_out configs);
private:
/// The number of elements in the config array.
int config_count_;
/// The array of precomputed queue configuration structures.
ACE_Scheduler_Factory::POD_Config_Info* config_info_;
/// The number of elements in the RT_Info array.
int entry_count_;
/// The array of precomputed RT_Info structures.
ACE_Scheduler_Factory::POD_RT_Info* rt_info_;
};
TAO_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* ACE_RUNTIME_SCHEDULER_H */
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