[2212a2ad] | 1 | /* COPYRIGHT (c) 1989-2009. |
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| 2 | * On-Line Applications Research Corporation (OAR). |
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| 3 | * |
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| 4 | * The license and distribution terms for this file may be |
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| 5 | * found in the file LICENSE in this distribution or at |
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| 6 | * http://www.rtems.com/license/LICENSE. |
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| 7 | * |
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| 8 | * $Id$ |
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| 9 | */ |
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| 10 | |
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| 11 | #if HAVE_CONFIG_H |
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| 12 | #include "config.h" |
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| 13 | #endif |
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| 14 | |
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| 15 | #include <pthread.h> |
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| 16 | #include <errno.h> |
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| 17 | |
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| 18 | #include <rtems/system.h> |
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| 19 | #include <rtems/posix/pthread.h> |
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| 20 | #include <rtems/posix/priority.h> |
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| 21 | #include <rtems/posix/time.h> |
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| 22 | |
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| 23 | int _POSIX_Thread_Translate_sched_param( |
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| 24 | int policy, |
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| 25 | struct sched_param *param, |
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| 26 | Thread_CPU_budget_algorithms *budget_algorithm, |
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| 27 | Thread_CPU_budget_algorithm_callout *budget_callout |
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| 28 | ) |
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| 29 | { |
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| 30 | if ( !_POSIX_Priority_Is_valid( param->sched_priority ) ) |
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| 31 | return EINVAL; |
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| 32 | |
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| 33 | *budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_NONE; |
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| 34 | *budget_callout = NULL; |
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| 35 | |
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[3ba0750] | 36 | if ( policy == SCHED_OTHER ) { |
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| 37 | *budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_RESET_TIMESLICE; |
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| 38 | return 0; |
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| 39 | } |
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[2212a2ad] | 40 | |
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[3ba0750] | 41 | if ( policy == SCHED_FIFO ) { |
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| 42 | *budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_NONE; |
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| 43 | return 0; |
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| 44 | } |
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[2212a2ad] | 45 | |
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[3ba0750] | 46 | if ( policy == SCHED_RR ) { |
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| 47 | *budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_EXHAUST_TIMESLICE; |
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| 48 | return 0; |
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| 49 | } |
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[2212a2ad] | 50 | |
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[3ba0750] | 51 | if ( policy == SCHED_SPORADIC ) { |
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[3bacb250] | 52 | if ( (param->sched_ss_repl_period.tv_sec == 0) && |
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| 53 | (param->sched_ss_repl_period.tv_nsec == 0) ) |
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[770db69] | 54 | return EINVAL; |
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| 55 | |
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[3bacb250] | 56 | if ( (param->sched_ss_init_budget.tv_sec == 0) && |
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| 57 | (param->sched_ss_init_budget.tv_nsec == 0) ) |
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[770db69] | 58 | return EINVAL; |
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| 59 | |
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[3bacb250] | 60 | if ( _Timespec_To_ticks( ¶m->sched_ss_repl_period ) < |
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| 61 | _Timespec_To_ticks( ¶m->sched_ss_init_budget ) ) |
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[3ba0750] | 62 | return EINVAL; |
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[2212a2ad] | 63 | |
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[3bacb250] | 64 | if ( !_POSIX_Priority_Is_valid( param->sched_ss_low_priority ) ) |
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[2212a2ad] | 65 | return EINVAL; |
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[1de949a8] | 66 | |
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[3ba0750] | 67 | *budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_CALLOUT; |
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| 68 | *budget_callout = _POSIX_Threads_Sporadic_budget_callout; |
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| 69 | return 0; |
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[2212a2ad] | 70 | } |
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[3ba0750] | 71 | |
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| 72 | return EINVAL; |
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[2212a2ad] | 73 | } |
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