diff options
Diffstat (limited to 'ace/Sched_Params.cpp')
| -rw-r--r-- | ace/Sched_Params.cpp | 279 |
1 files changed, 0 insertions, 279 deletions
diff --git a/ace/Sched_Params.cpp b/ace/Sched_Params.cpp deleted file mode 100644 index cafb440f5da..00000000000 --- a/ace/Sched_Params.cpp +++ /dev/null @@ -1,279 +0,0 @@ -// $Id$ - -// ============================================================================ -// -// = LIBRARY -// ACE -// -// = FILENAME -// Sched_Params.cpp -// -// = CREATION DATE -// 28 January 1997 -// -// = AUTHOR -// David Levine -// -// ============================================================================ - -#define ACE_BUILD_DLL - -#include "ace/Sched_Params.h" - -#if !defined (__ACE_INLINE__) -#include "ace/Sched_Params.i" -#endif /* __ACE_INLINE__ */ - -ACE_RCSID(ace, Sched_Params, "$Id$") - -int -ACE_Sched_Params::priority_min (const Policy policy, - const int scope) -{ -#if defined (ACE_HAS_PRIOCNTL) && defined (ACE_HAS_STHREADS) - ACE_UNUSED_ARG (scope); - - // Assume that ACE_SCHED_OTHER indicates TS class, and that other - // policies indicate RT class. - - if (policy == ACE_SCHED_OTHER) - { - // Get the priority class ID and attributes. - pcinfo_t pcinfo; - // The following is just to avoid Purify warnings about unitialized - // memory reads. - ACE_OS::memset (&pcinfo, 0, sizeof pcinfo); - ACE_OS::strcpy (pcinfo.pc_clname, "TS"); - - if (ACE_OS::priority_control (P_ALL /* ignored */, - P_MYID /* ignored */, - PC_GETCID, - (char *) &pcinfo) == -1) - // Just hope that priority range wasn't configured from -1 - // .. 1 - return -1; - - // OK, now we've got the class ID in pcinfo.pc_cid. In - // addition, the maximum configured time-share priority is in - // ((tsinfo_t *) pcinfo.pc_clinfo)->ts_maxupri. The minimum - // priority is just the negative of that. - - return -((tsinfo_t *) pcinfo.pc_clinfo)->ts_maxupri; - } - else - return 0; -#elif defined (ACE_HAS_PTHREADS) && !defined(ACE_LACKS_SETSCHED) - - switch (scope) - { - case ACE_SCOPE_THREAD: - switch (policy) - { - case ACE_SCHED_FIFO: - return ACE_THR_PRI_FIFO_MIN; - case ACE_SCHED_RR: - return ACE_THR_PRI_RR_MIN; -#if !defined (CHORUS) // SCHED_OTHRE and SCHED_RR have same value - case ACE_SCHED_OTHER: -#endif /* CHORUS */ - default: - return ACE_THR_PRI_OTHER_MIN; - } - - case ACE_SCOPE_PROCESS: - default: - switch (policy) - { - case ACE_SCHED_FIFO: - return ACE_PROC_PRI_FIFO_MIN; - case ACE_SCHED_RR: - return ACE_PROC_PRI_RR_MIN; -#if !defined (CHORUS) // SCHED_OTHRE and SCHED_RR have same value - case ACE_SCHED_OTHER: -#endif /* CHORUS */ - default: - return ACE_PROC_PRI_OTHER_MIN; - } - } - -#elif defined (ACE_HAS_WTHREADS) - ACE_UNUSED_ARG (policy); - ACE_UNUSED_ARG (scope); - return THREAD_PRIORITY_IDLE; -#elif defined (VXWORKS) - ACE_UNUSED_ARG (policy); - ACE_UNUSED_ARG (scope); - return 255; -#else - ACE_UNUSED_ARG (policy); - ACE_UNUSED_ARG (scope); - ACE_NOTSUP_RETURN (-1); -#endif /* ACE_HAS_PRIOCNTL && defined (ACE_HAS_STHREADS) */ -} - -int -ACE_Sched_Params::priority_max (const Policy policy, - const int scope) -{ -#if defined (ACE_HAS_PRIOCNTL) && defined (ACE_HAS_STHREADS) - ACE_UNUSED_ARG (scope); - - // Assume that ACE_SCHED_OTHER indicates TS class, and that other - // policies indicate RT class. - - // Get the priority class ID and attributes. - pcinfo_t pcinfo; - // The following is just to avoid Purify warnings about unitialized - // memory reads. - ACE_OS::memset (&pcinfo, 0, sizeof pcinfo); - ACE_OS::strcpy (pcinfo.pc_clname, - policy == ACE_SCHED_OTHER ? "TS" : "RT"); - - if (ACE_OS::priority_control (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, or similarly for the TS class. - - return policy == ACE_SCHED_OTHER - ? ((tsinfo_t *) pcinfo.pc_clinfo)->ts_maxupri - : ((rtinfo_t *) pcinfo.pc_clinfo)->rt_maxpri; -#elif defined(ACE_HAS_PTHREADS) && !defined(ACE_LACKS_SETSCHED) - - switch (scope) - { - case ACE_SCOPE_THREAD: - switch (policy) - { - case ACE_SCHED_FIFO: - return ACE_THR_PRI_FIFO_MAX; - case ACE_SCHED_RR: - return ACE_THR_PRI_RR_MAX; -#if !defined (CHORUS) // SCHED_OTHRE and SCHED_RR have same value - case ACE_SCHED_OTHER: -#endif /* CHORUS */ - default: - return ACE_THR_PRI_OTHER_MAX; - } - - case ACE_SCOPE_PROCESS: - default: - switch (policy) - { - case ACE_SCHED_FIFO: - return ACE_PROC_PRI_FIFO_MAX; - case ACE_SCHED_RR: - return ACE_PROC_PRI_RR_MAX; -#if !defined (CHORUS) // SCHED_OTHRE and SCHED_RR have same value - case ACE_SCHED_OTHER: -#endif /* CHORUS */ - default: - return ACE_PROC_PRI_OTHER_MAX; - } - } - -#elif defined (ACE_HAS_WTHREADS) - ACE_UNUSED_ARG (policy); - ACE_UNUSED_ARG (scope); - return THREAD_PRIORITY_TIME_CRITICAL; -#elif defined (VXWORKS) - ACE_UNUSED_ARG (policy); - ACE_UNUSED_ARG (scope); - return 0; -#else - ACE_UNUSED_ARG (policy); - ACE_UNUSED_ARG (scope); - ACE_NOTSUP_RETURN (-1); -#endif /* ACE_HAS_PRIOCNTL && defined (ACE_HAS_STHREADS) */ -} - -int -ACE_Sched_Params::next_priority (const Policy policy, - const int priority, - const int scope) -{ -#if defined (VXWORKS) - return priority > priority_max (policy, scope) - ? priority - 1 - : priority_max (policy, scope); -#elif defined (ACE_HAS_WTHREADS) - ACE_UNUSED_ARG (policy); - ACE_UNUSED_ARG (scope); - switch (priority) - { - case THREAD_PRIORITY_IDLE: - return THREAD_PRIORITY_LOWEST; - case THREAD_PRIORITY_LOWEST: - return THREAD_PRIORITY_BELOW_NORMAL; - case THREAD_PRIORITY_BELOW_NORMAL: - return THREAD_PRIORITY_NORMAL; - case THREAD_PRIORITY_NORMAL: - return THREAD_PRIORITY_ABOVE_NORMAL; - case THREAD_PRIORITY_ABOVE_NORMAL: - return THREAD_PRIORITY_HIGHEST; - case THREAD_PRIORITY_HIGHEST: - return THREAD_PRIORITY_TIME_CRITICAL; - case THREAD_PRIORITY_TIME_CRITICAL: - return THREAD_PRIORITY_TIME_CRITICAL; - default: - return priority; // unknown priority: should never get here - } -#elif defined(ACE_HAS_THREADS) && !defined(ACE_LACKS_SETSCHED) - // including STHREADS, and PTHREADS - const int max = priority_max (policy, scope); - return priority < max ? priority + 1 : max; -#else - ACE_UNUSED_ARG (policy); - ACE_UNUSED_ARG (scope); - ACE_UNUSED_ARG (priority); - ACE_NOTSUP_RETURN (-1); -#endif /* ACE_HAS_THREADS */ -} - -int -ACE_Sched_Params::previous_priority (const Policy policy, - const int priority, - const int scope) -{ -#if defined (VXWORKS) - return priority < priority_min (policy, scope) - ? priority + 1 - : priority_min (policy, scope); -#elif defined (ACE_HAS_WTHREADS) - ACE_UNUSED_ARG (policy); - ACE_UNUSED_ARG (scope); - switch (priority) - { - case THREAD_PRIORITY_IDLE: - return THREAD_PRIORITY_IDLE; - case THREAD_PRIORITY_LOWEST: - return THREAD_PRIORITY_IDLE; - case THREAD_PRIORITY_BELOW_NORMAL: - return THREAD_PRIORITY_LOWEST; - case THREAD_PRIORITY_NORMAL: - return THREAD_PRIORITY_BELOW_NORMAL; - case THREAD_PRIORITY_ABOVE_NORMAL: - return THREAD_PRIORITY_NORMAL; - case THREAD_PRIORITY_HIGHEST: - return THREAD_PRIORITY_ABOVE_NORMAL; - case THREAD_PRIORITY_TIME_CRITICAL: - return THREAD_PRIORITY_HIGHEST; - default: - return priority; // unknown priority: should never get here - } -#elif defined (ACE_HAS_THREADS) && !defined(ACE_LACKS_SETSCHED) - // including STHREADS and PTHREADS - const int min = priority_min (policy, scope); - - return priority > min ? priority - 1 : min; -#else - ACE_UNUSED_ARG (policy); - ACE_UNUSED_ARG (scope); - ACE_UNUSED_ARG (priority); - ACE_NOTSUP_RETURN (-1); -#endif /* ACE_HAS_THREADS */ -} |