1 files changed, 73 insertions, 0 deletions
diff --git a/cpukit/posix/src/psxtransschedparam.c b/cpukit/posix/src/psxtransschedparam.c
new file mode 100644
index 0000000000..7be4dcc641
--- /dev/null
+++ b/cpukit/posix/src/psxtransschedparam.c
@@ -0,0 +1,73 @@
+/*  COPYRIGHT (c) 1989-2009.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <pthread.h>
+#include <errno.h>
+
+#include <rtems/system.h>
+#include <rtems/posix/pthread.h>
+#include <rtems/posix/priority.h>
+#include <rtems/posix/time.h>
+
+int _POSIX_Thread_Translate_sched_param(
+  int                                  policy,
+  struct sched_param                  *param,
+  Thread_CPU_budget_algorithms        *budget_algorithm,
+  Thread_CPU_budget_algorithm_callout *budget_callout
+)
+{
+  if ( !_POSIX_Priority_Is_valid( param->sched_priority ) )
+    return EINVAL;
+
+  *budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_NONE;
+  *budget_callout = NULL;
+
+  if ( policy == SCHED_OTHER ) {
+    *budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_RESET_TIMESLICE;
+    return 0;
+  }
+
+  if ( policy == SCHED_FIFO ) {
+    *budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_NONE;
+    return 0;
+  }
+
+  if ( policy == SCHED_RR ) {
+    *budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_EXHAUST_TIMESLICE;
+    return 0;
+  }
+
+  if ( policy == SCHED_SPORADIC ) {
+    if ( (param->sched_ss_repl_period.tv_sec == 0) &&
+         (param->sched_ss_repl_period.tv_nsec == 0) )
+      return EINVAL;
+
+    if ( (param->sched_ss_init_budget.tv_sec == 0) &&
+         (param->sched_ss_init_budget.tv_nsec == 0) )
+      return EINVAL;
+
+    if ( _Timespec_To_ticks( &param->sched_ss_repl_period ) <
+	 _Timespec_To_ticks( &param->sched_ss_init_budget ) )
+      return EINVAL;
+
+    if ( !_POSIX_Priority_Is_valid( param->sched_ss_low_priority ) )
+      return EINVAL;
+
+    *budget_algorithm  = THREAD_CPU_BUDGET_ALGORITHM_CALLOUT;
+    *budget_callout = _POSIX_Threads_Sporadic_budget_callout;
+    return 0;
+  }
+
+  return EINVAL;
+}