libpthread-137.1.1.tar.gz

[apple/libpthread.git] / kern / kern_policy.c

diff --git a/kern/kern_policy.c b/kern/kern_policy.c
index 23fb0d07542b9240fd1bd15f80af8e19d36f01a8..a168bdbcc5b295311b549898b5dc34f569688faf 100644 (file)
--- a/kern/kern_policy.c
+++ b/kern/kern_policy.c
@@ -28,6 +28,7 @@
 
 #include "kern_internal.h"
 #include <kern/debug.h>
+#include <kern/assert.h>
 
 pthread_priority_t
 pthread_qos_class_get_priority(int qos)
@@ -70,6 +71,7 @@ pthread_priority_from_class_index(int index)
                case 3: qos = QOS_CLASS_UTILITY; break;
                case 4: qos = QOS_CLASS_BACKGROUND; break;
                case 5: qos = QOS_CLASS_MAINTENANCE; break;
+               case 6: assert(index != 6); // EVENT_MANAGER should be handled specially
                default:
                        /* Return the utility band if we don't understand the input. */
                        qos = QOS_CLASS_UTILITY;
@@ -82,9 +84,8 @@ pthread_priority_from_class_index(int index)
 }
 
 int
-pthread_priority_get_class_index(pthread_priority_t priority)
-{
-       switch (_pthread_priority_get_qos_newest(priority)) {
+qos_get_class_index(int qos){
+       switch (qos){
                case QOS_CLASS_USER_INTERACTIVE: return 0;
                case QOS_CLASS_USER_INITIATED: return 1;
                case QOS_CLASS_DEFAULT: return 2;
@@ -96,3 +97,17 @@ pthread_priority_get_class_index(pthread_priority_t priority)
                        return 2;
        }
 }
+
+int
+pthread_priority_get_class_index(pthread_priority_t priority)
+{
+       return qos_get_class_index(_pthread_priority_get_qos_newest(priority));
+}
+
+integer_t
+_thread_qos_from_pthread_priority(unsigned long priority, unsigned long *flags){
+    if (flags){
+        *flags = (int)_pthread_priority_get_flags(priority) >> _PTHREAD_PRIORITY_FLAGS_SHIFT;
+    }
+    return pthread_priority_get_qos_class(priority);
+}