From 6a631daeb87d41800212b494a560d62612982b23 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Tue, 14 Jun 2016 11:13:22 +0200
Subject: posix: sched_get_priority_max()

Enable for all configurations since it pulls in no additional
dependencies.  Return value of the scheduler instance of the executing
thread.
---
 cpukit/posix/Makefile.am                |  3 ++-
 cpukit/posix/src/sched_getprioritymax.c | 12 ++++++++++--
 2 files changed, 12 insertions(+), 3 deletions(-)

(limited to 'cpukit')

diff --git a/cpukit/posix/Makefile.am b/cpukit/posix/Makefile.am
index a119bd0598..873ad11226 100644
--- a/cpukit/posix/Makefile.am
+++ b/cpukit/posix/Makefile.am
@@ -207,13 +207,14 @@ libposix_a_SOURCES += src/psxnametoid.c
 
 EXTRA_DIST += src/README.mqueue
 
-libposix_a_SOURCES += src/sched_getparam.c src/sched_getprioritymax.c \
+libposix_a_SOURCES += src/sched_getparam.c \
     src/sched_getscheduler.c \
     src/sched_rr_get_interval.c src/sched_setparam.c \
     src/sched_setscheduler.c src/sched_yield.c
 endif
 
 libposix_a_SOURCES += src/sched_getprioritymin.c
+libposix_a_SOURCES += src/sched_getprioritymax.c
 
 include $(srcdir)/preinstall.am
 include $(top_srcdir)/automake/local.am
diff --git a/cpukit/posix/src/sched_getprioritymax.c b/cpukit/posix/src/sched_getprioritymax.c
index cde9eb9466..94114e3b84 100644
--- a/cpukit/posix/src/sched_getprioritymax.c
+++ b/cpukit/posix/src/sched_getprioritymax.c
@@ -25,12 +25,14 @@
 
 #include <rtems/system.h>
 #include <rtems/seterr.h>
-#include <rtems/posix/priorityimpl.h>
+#include <rtems/score/schedulerimpl.h>
 
 int sched_get_priority_max(
   int  policy
 )
 {
+  const Scheduler_Control *scheduler;
+
   switch ( policy ) {
     case SCHED_OTHER:
     case SCHED_FIFO:
@@ -42,5 +44,11 @@ int sched_get_priority_max(
       rtems_set_errno_and_return_minus_one( EINVAL );
   }
 
-  return POSIX_SCHEDULER_MAXIMUM_PRIORITY;
+  scheduler = _Scheduler_Get_own( _Thread_Get_executing() );
+
+  if ( scheduler->maximum_priority > INT_MAX ) {
+    return INT_MAX;
+  }
+
+  return (int) scheduler->maximum_priority - 1;
 }
-- 
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