Changeset 6a631da in rtems

Timestamp:

06/14/16 09:13:22 (7 years ago)

Author:

Sebastian Huber <sebastian.huber@…>

Branches:

5, master

Children:

d07f582

Parents:

ea02782a

git-author:

Sebastian Huber <sebastian.huber@…> (06/14/16 09:13:22)

git-committer:

Sebastian Huber <sebastian.huber@…> (06/14/16 09:58:03)

Message:

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.

Files:

• cpukit/posix/Makefile.am (modified) (2 diffs)
• cpukit/posix/src/sched_getprioritymax.c (modified) (3 diffs)
• testsuites/smptests/smpscheduler02/init.c (modified) (4 diffs)

cpukit/posix/Makefile.am

@@ -208 +208 @@
 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 \
@@ -215 +215 @@
 
 libposix_a_SOURCES += src/sched_getprioritymin.c
+libposix_a_SOURCES += src/sched_getprioritymax.c
 
 include $(srcdir)/preinstall.am

cpukit/posix/src/sched_getprioritymax.c

@@ -26 +26 @@
 #include <rtems/system.h>
 #include <rtems/seterr.h>
-#include <rtems/posix/priorityimpl.h>
+#include <rtems/score/schedulerimpl.h>
 
 int sched_get_priority_max(
@@ -32 +32 @@
 )
 {
+  const Scheduler_Control *scheduler;
+
   switch ( policy ) {
     case SCHED_OTHER:
@@ -43 +45 @@
   }
 
-  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;
 }

testsuites/smptests/smpscheduler02/init.c

@@ -44 +44 @@
   rtems_test_assert(rtems_get_current_processor() == 1);
   rtems_test_assert(sched_get_priority_min(SCHED_RR) == 1);
+  rtems_test_assert(sched_get_priority_max(SCHED_RR) == 126);
 
   sc = rtems_event_transient_send(main_task_id);
@@ -135 +136 @@
 
   rtems_test_assert(sched_get_priority_min(SCHED_RR) == 1);
+  rtems_test_assert(sched_get_priority_max(SCHED_RR) == 254);
 
   if (cpu_count > 1) {
@@ -216 +218 @@
 #define CONFIGURE_SMP_MAXIMUM_PROCESSORS 64
 
-#define CONFIGURE_MAXIMUM_PRIORITY 255
-
 #define CONFIGURE_SCHEDULER_PRIORITY_SMP
 #define CONFIGURE_SCHEDULER_SIMPLE_SMP
@@ -223 +223 @@
 #include <rtems/scheduler.h>
 
-RTEMS_SCHEDULER_CONTEXT_PRIORITY_SMP(a, CONFIGURE_MAXIMUM_PRIORITY + 1);
-
-RTEMS_SCHEDULER_CONTEXT_PRIORITY_SMP(b, CONFIGURE_MAXIMUM_PRIORITY + 1);
+RTEMS_SCHEDULER_CONTEXT_PRIORITY_SMP(a, 256);
+
+RTEMS_SCHEDULER_CONTEXT_PRIORITY_SMP(b, 128);
 
 RTEMS_SCHEDULER_CONTEXT_SIMPLE_SMP(c);