X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..13fec9890cf095cc781fdf7b8917cb03bf32dd4c:/osfmk/mach/thread_policy.h

diff --git a/osfmk/mach/thread_policy.h b/osfmk/mach/thread_policy.h
index 3f2e29cad..057d26831 100644
--- a/osfmk/mach/thread_policy.h
+++ b/osfmk/mach/thread_policy.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
@@ -19,17 +19,6 @@
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
-/*
- * Copyright (c) 2000 Apple Computer, Inc.  All rights reserved.
- *
- * HISTORY
- *
- * 10 October 2000 (debo)
- *  Created.
- *
- * 30 November 2000 (debo)
- *	Final resolution of review feedback.
- */
 
 #ifndef _MACH_THREAD_POLICY_H_
 #define _MACH_THREAD_POLICY_H_
@@ -58,13 +47,13 @@ typedef integer_t	*thread_policy_t;
 
 /*
 kern_return_t	thread_policy_set(
-					thread_act_t				thread,
+					thread_t					thread,
 					thread_policy_flavor_t		flavor,
 					thread_policy_t				policy_info,
 					mach_msg_type_number_t		count);
 
 kern_return_t	thread_policy_get(
-					thread_act_t				thread,
+					thread_t					thread,
 					thread_policy_flavor_t		flavor,
 					thread_policy_t				policy_info,
 					mach_msg_type_number_t		*count,
@@ -77,9 +66,10 @@ kern_return_t	thread_policy_get(
 /*
  * THREAD_STANDARD_POLICY:
  *
- * This is the standard [fair] scheduling mode, assigned to new
- * threads.  Specifying it explicitly is not typically required,
- * but may be used to return a thread to the default mode setting.
+ * This is the standard (fair) scheduling mode, assigned to new
+ * threads.  The thread will be given processor time in a manner
+ * which apportions approximately equal share to long running
+ * computations.
  *
  * Parameters:
  *	[none]
@@ -88,14 +78,37 @@ kern_return_t	thread_policy_get(
 #define THREAD_STANDARD_POLICY			1
 
 struct thread_standard_policy {
-	/* no data */
+	natural_t		no_data;
 };
 
 typedef struct thread_standard_policy	thread_standard_policy_data_t;
 typedef struct thread_standard_policy	*thread_standard_policy_t;
 
-#define THREAD_STANDARD_POLICY_COUNT	\
-	(sizeof (thread_standard_policy_data_t) / sizeof (integer_t))
+#define THREAD_STANDARD_POLICY_COUNT	0
+
+/*
+ * THREAD_EXTENDED_POLICY:
+ *
+ * Extended form of THREAD_STANDARD_POLICY, which supplies a
+ * hint indicating whether this is a long running computation.
+ *
+ * Parameters:
+ *
+ * timeshare: TRUE (the default) results in identical scheduling
+ * behavior as THREAD_STANDARD_POLICY.
+ */
+
+#define THREAD_EXTENDED_POLICY			1
+
+struct thread_extended_policy {
+	boolean_t		timeshare;
+};
+
+typedef struct thread_extended_policy	thread_extended_policy_data_t;
+typedef struct thread_extended_policy	*thread_extended_policy_t;
+
+#define THREAD_EXTENDED_POLICY_COUNT	((mach_msg_type_number_t) \
+	(sizeof (thread_extended_policy_data_t) / sizeof (integer_t)))
 
 /*
  * THREAD_TIME_CONSTRAINT_POLICY:
@@ -127,9 +140,9 @@ typedef struct thread_standard_policy	*thread_standard_policy_t;
 #define THREAD_TIME_CONSTRAINT_POLICY	2
 
 struct thread_time_constraint_policy {
-	natural_t		period;
-	natural_t		computation;
-	natural_t		constraint;
+	uint32_t		period;
+	uint32_t		computation;
+	uint32_t		constraint;
 	boolean_t		preemptible;
 };
 
@@ -138,8 +151,8 @@ typedef struct thread_time_constraint_policy	\
 typedef struct thread_time_constraint_policy	\
 									*thread_time_constraint_policy_t;
 
-#define THREAD_TIME_CONSTRAINT_POLICY_COUNT	\
-	(sizeof (thread_time_constraint_policy_data_t) / sizeof (integer_t))
+#define THREAD_TIME_CONSTRAINT_POLICY_COUNT	((mach_msg_type_number_t) \
+	(sizeof (thread_time_constraint_policy_data_t) / sizeof (integer_t)))
 
 /*
  * THREAD_PRECEDENCE_POLICY:
@@ -161,7 +174,7 @@ struct thread_precedence_policy {
 typedef struct thread_precedence_policy		thread_precedence_policy_data_t;
 typedef struct thread_precedence_policy		*thread_precedence_policy_t;
 
-#define THREAD_PRECEDENCE_POLICY_COUNT	\
-	(sizeof (thread_precedence_policy_data_t) / sizeof (integer_t))
+#define THREAD_PRECEDENCE_POLICY_COUNT	((mach_msg_type_number_t) \
+	(sizeof (thread_precedence_policy_data_t) / sizeof (integer_t)))
 
 #endif	/* _MACH_THREAD_POLICY_H_ */