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/* -*- C++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// ACE
//
// = FILENAME
// Scheduling_Params.h
//
// = CREATION DATE
// 28 January 1997
//
// = AUTHOR
// David Levine
//
// ============================================================================
#if ! defined (SCHEDULING_PARAMS_H)
#define SCHEDULING_PARAMS_H
#include "ace/Thread_Priority.h"
#include "ace/OS.h" // for ACE_Time_Value and ACE_SCOPE_PROCESS
class ACE_Scheduling_Params
{
public:
ACE_Scheduling_Params (
const ACE_Thread_Priority &priority = ACE_Thread_Priority (),
const int scope = ACE_SCOPE_PROCESS,
const ACE_Time_Value &quantum = ACE_Time_Value::zero);
// default priority: sets the priority to be used for newly spawned threads.
// It is intended that this function be called from main () before
// any threads have been spawned. If spawned threads inherit their
// parent's priority (I think that's the case for all of our platforms),
// then this sets the default base priority. Individual thread
// priorities can be adjusted as usual.
//
// "scope" must be either ACE_SCOPE_PROCESS or ACE_SCOPE_LWP (which is
// only used on Solaris, and ignored on Win32 and VxWorks)
//
// The "quantum" is for time slicing. An ACE_Time_Value of 0 has
// special significance: it means time-slicing is disabled; with
// that, a thread that is running on a CPU will continue to run until
// it blocks or is preempted. Currently ignored if the OS doesn't
// directly support time slicing, such as on VxWorks, or setting the
// quantum (can that be done on Win32?).
~ACE_Scheduling_Params ();
// get/set accessors:
const ACE_Thread_Priority &priority () const;
void set_priority (const ACE_Thread_Priority &);
int scope () const;
void set_scope(const int);
const ACE_Time_Value &quantum () const;
void set_quantum (const ACE_Time_Value &);
private:
ACE_Thread_Priority priority_;
int scope_;
ACE_Time_Value quantum_;
};
#if defined (__ACE_INLINE__)
#include "ace/Scheduling_Params.i"
#endif /* __ACE_INLINE__ */
#endif /* SCHEDULING_PARAMS_H */
// EOF
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