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// $Id$
// ============================================================================
//
// = LIBRARY
// ACE
//
// = FILENAME
// Thread_Priority.cpp
//
// = CREATION DATE
// 28 January 1997
//
// = AUTHOR
// David Levine
//
// ============================================================================
#include "ace/ACE.h"
#include "ace/Thread_Priority.h"
#include "ace/OS.h"
#if !defined (__ACE_INLINE__)
#include "ace/Thread_Priority.i"
#endif /* __ACE_INLINE__ */
#if defined (ACE_HAS_STHREADS)
#include <sys/priocntl.h>
#include <sys/rtpriocntl.h>
#include <sys/tspriocntl.h>
/* mapping of
ACE_Thread_Priority:: to Solaris
Priority_Class Thread_Priority class priority
============== =============== ===== ========
ACE_LOW_PRIORITY_CLASS 0 .. 6 TS 0 .. 6
ACE_NORMAL_PRIORITY_CLASS 0 .. 6 TS 7 .. 13
ACE_HIGH_PRIORITY_CLASS 0 .. 6 RT 0 .. 6
ACE_REALTIME_PRIORITY_CLASS 0 .. 6 RT 7 .. 13
*/
long
ACE_Thread_Priority::normalize (void)
{
// Get the priority class ID and attributes.
pcinfo_t pcinfo;
ACE_OS::strcpy (pcinfo.pc_clname,
priority_class_ == ACE_HIGH_PRIORITY_CLASS
|| priority_class_ == ACE_REALTIME_PRIORITY_CLASS
? "RT"
: "TS");
if (::priocntl (P_ALL /* ignored */,
P_MYID /* ignored */,
PC_GETCID,
(char *) &pcinfo) == -1)
return -1;
// OK, now we've got the class ID in pcinfo.pc_cid. In addition,
// the maximum configured real-time priority is in ((rtinfo_t *)
// pcinfo.pc_clinfo)->rt_maxpri.
os_priority_class_ = pcinfo.pc_cid;
if (ACE_PRIORITY_MIN <= default_thread_priority_
&& default_thread_priority_ <= ACE_PRIORITY_MAX)
{
os_default_thread_priority_ =
priority_class_ == ACE_NORMAL_PRIORITY_CLASS
|| priority_class_ == ACE_REALTIME_PRIORITY_CLASS
? default_thread_priority_ + 7
: default_thread_priority_;
}
else
// The user specified a thread priority outside the enum range, so
// use it without modification.
os_default_thread_priority_ = default_thread_priority_;
return 0;
}
#elif defined (ACE_WIN32)
/* mapping of
ACE_Thread_Priority:: to Win32
Priority_Class Thread_Priority class THREAD_PRIORITY_
============== =============== ===== ================
ACE_LOW_PRIORITY_CLASS 0 .. 6 IDLE_... IDLE...
TIME_CRITICAL
ACE_NORMAL_PRIORITY_CLASS 0 .. 6 NORMAL_... ""
ACE_HIGH_PRIORITY_CLASS 0 .. 6 HIGH_... ""
ACE_REALTIME_PRIORITY_CLASS 0 .. 6 REALTIME_... ""
*/
long
ACE_Thread_Priority::normalize (void)
{
switch (priority_class)
{
case ACE_LOW_PRIORITY_CLASS :
os_priority_class_ = IDLE_PRIORITY_CLASS;
break;
case ACE_NORMAL_PRIORITY_CLASS :
os_priority_class_ = NORMAL_PRIORITY_CLASS;
break;
case ACE_HIGH_PRIORITY_CLASS :
os_priority_class_ = HIGH_PRIORITY_CLASS;
break;
case ACE_REALTIME_PRIORITY_CLASS :
os_priority_class_ = REALTIME_PRIORITY_CLASS;
break;
}
if (ACE_PRIORITY_MIN <= default_thread_priority_
&& default_thread_priority_ <= ACE_PRIORITY_MAX)
{
switch (default_thread_priority_)
{
case ACE_PRIORITY_0 :
os_default_thread_priority_ = THREAD_PRIORITY_IDLE;
break;
case ACE_PRIORITY_1 :
os_default_thread_priority_ = THREAD_PRIORITY_LOWEST;
break;
case ACE_PRIORITY_2 :
os_default_thread_priority_ = THREAD_PRIORITY_BELOW_NORMAL;
break;
case ACE_PRIORITY_3 :
os_default_thread_priority_ = THREAD_PRIORITY_NORMAL;
break;
case ACE_PRIORITY_4 :
os_default_thread_priority_ = THREAD_PRIORITY_ABOVE_NORMAL;
break;
case ACE_PRIORITY_5 :
os_default_thread_priority_ = THREAD_PRIORITY_HIGHEST;
break;
case ACE_PRIORITY_6 :
os_default_thread_priority_ = THREAD_PRIORITY_TIME_CRITICAL;
break;
}
}
else
// The user specified a thread priority outside the enum range, so
// use it without modification. The user had better know what they're
// doing on Win32 platforms.
os_default_thread_priority_ = default_thread_priority_;
return 0;
}
#elif defined (VXWORKS)
/* mapping of
ACE_Thread_Priority:: to VxWorks
Priority_Class Thread_Priority class priority
============== =============== ===== ========
ACE_LOW_PRIORITY_CLASS 0 .. 6 N/A 27 .. 21
ACE_NORMAL_PRIORITY_CLASS 0 .. 6 N/A 20 .. 14
ACE_HIGH_PRIORITY_CLASS 0 .. 6 N/A 13 .. 7
ACE_REALTIME_PRIORITY_CLASS 0 .. 6 N/A 6 .. 0
*/
long
ACE_Thread_Priority::normalize (void)
{
os_priority_class_ = -1; /* unused on this platform */
if (ACE_PRIORITY_MIN <= default_thread_priority_
&& default_thread_priority_ <= ACE_PRIORITY_MAX)
{
switch (priority_class)
{
case ACE_LOW_PRIORITY_CLASS :
os_default_thread_priority_ =
ACE_PRIORITY_MAX - default_thread_priority_ + 21;
break;
case ACE_NORMAL_PRIORITY_CLASS :
os_default_thread_priority_ =
ACE_PRIORITY_MAX - default_thread_priority_ + 14;
break;
case ACE_HIGH_PRIORITY_CLASS :
os_default_thread_priority_ =
ACE_PRIORITY_MAX - default_thread_priority_ + 7;
break;
case ACE_REALTIME_PRIORITY_CLASS :
os_default_thread_priority_ =
ACE_PRIORITY_MAX - default_thread_priority_;
break;
}
}
else
// The user specified a thread priority outside the enum range, so
// use it without modification.
os_default_thread_priority_ = default_thread_priority_;
return 0;
}
#else
/* mapping of
ACE_Thread_Priority:: to VxWorks
Priority_Class Thread_Priority class priority
============== =============== ===== ========
ACE_LOW_PRIORITY_CLASS 0 .. 6 N/A 0 .. 6
ACE_NORMAL_PRIORITY_CLASS 0 .. 6 N/A 7 .. 13
ACE_HIGH_PRIORITY_CLASS 0 .. 6 N/A 14 .. 20
ACE_REALTIME_PRIORITY_CLASS 0 .. 6 N/A 21 .. 27
*/
// assumes that priority increases with increasing ACE_pri_t value
long
ACE_Thread_Priority::normalize (void)
{
os_priority_class_ = -1; /* unused on this platform */
if (ACE_PRIORITY_MIN <= default_thread_priority_
&& default_thread_priority_ <= ACE_PRIORITY_MAX)
{
switch (priority_class)
{
case ACE_LOW_PRIORITY_CLASS :
os_default_thread_priority_ = default_thread_priority_;
break;
case ACE_NORMAL_PRIORITY_CLASS :
os_default_thread_priority_ = default_thread_priority_ + 7;
break;
case ACE_HIGH_PRIORITY_CLASS :
os_default_thread_priority_ = default_thread_priority_ + 14;
break;
case ACE_REALTIME_PRIORITY_CLASS :
os_default_thread_priority_ = default_thread_priority_ + 21;
break;
}
}
else
// The user specified a thread priority outside the enum range, so
// use it without modification.
os_default_thread_priority_ = default_thread_priority_;
return 0;
}
#endif /* ACE_HAS_STHREADS */
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