xnu-517.3.15.tar.gz

[apple/xnu.git] / osfmk / kern / simple_lock.h

diff --git a/osfmk/kern/simple_lock.h b/osfmk/kern/simple_lock.h
index f22979f3b4fb4f8601a11d17a8de07a4743153fd..af748b2565898c602c3eb80a55111d4e694e6e5e 100644 (file)
--- a/osfmk/kern/simple_lock.h
+++ b/osfmk/kern/simple_lock.h
@@ -3,19 +3,22 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -120,7 +123,12 @@
  *     and use the portable lock package for everything else.
  */
 
-#ifdef MACH_KERNEL_PRIVATE
+#include <sys/appleapiopts.h>
+
+#ifdef __APPLE_API_PRIVATE
+
+#ifdef MACH_KERNEL_PRIVATE
+
 /*
  *     Mach always initializes locks, even those statically
  *     allocated.
@@ -141,10 +149,13 @@ extern void                       hw_lock_unlock(hw_lock_t);
 extern unsigned int            hw_lock_to(hw_lock_t, unsigned int);
 extern unsigned int            hw_lock_try(hw_lock_t);
 extern unsigned int            hw_lock_held(hw_lock_t);
-#endif /* MACH_KERNEL_PRIVATE */
+
+#endif /* MACH_KERNEL_PRIVATE */
+
+#endif /* __APPLE_API_PRIVATE */
 
 /*
- * Machine dependent atomic ops.  Probably should be in their own header.
+ * Machine dependent ops.
  */
 extern unsigned int            hw_lock_bit(unsigned int *, unsigned int, unsigned int);
 extern unsigned int            hw_cpu_sync(unsigned int *, unsigned int);
@@ -152,11 +163,28 @@ extern unsigned int               hw_cpu_wcng(unsigned int *, unsigned int, unsigned int);
 extern unsigned int            hw_lock_mbits(unsigned int *, unsigned int, unsigned int,
        unsigned int, unsigned int);
 void                           hw_unlock_bit(unsigned int *, unsigned int);
-extern int                     hw_atomic_add(int *area, int inc);
-extern int                     hw_atomic_sub(int *area, int dec);
-extern int                     hw_atomic_or(int *area, int val);
-extern int                     hw_atomic_and(int *area, int mask);
-extern unsigned int            hw_compare_and_store(unsigned int oldValue, unsigned int newValue, unsigned int *area);
+
+extern uint32_t                hw_atomic_add(
+                                               uint32_t        *dest,
+                                               uint32_t        delt);
+
+extern uint32_t                hw_atomic_sub(
+                                               uint32_t        *dest,
+                                               uint32_t        delt);
+
+extern uint32_t                hw_atomic_or(
+                                               uint32_t        *dest,
+                                               uint32_t        mask);
+
+extern uint32_t                hw_atomic_and(
+                                               uint32_t        *dest,
+                                               uint32_t        mask);
+
+extern uint32_t                hw_compare_and_store(
+                                               uint32_t        oldval,
+                                               uint32_t        newval,
+                                               uint32_t        *dest);
+
 extern void                    hw_queue_atomic(unsigned int *anchor, unsigned int *elem, unsigned int disp);
 extern void                    hw_queue_atomic_list(unsigned int *anchor, unsigned int *first, unsigned int *last, unsigned int disp);
 extern unsigned int            *hw_dequeue_atomic(unsigned int *anchor, unsigned int disp);
@@ -248,7 +276,10 @@ extern void                usimple_lock_none_held(void);
  *     Otherwise, deadlock may result.
  */
 
-#if MACH_KERNEL_PRIVATE
+#ifdef __APPLE_API_PRIVATE
+
+#ifdef MACH_KERNEL_PRIVATE
+
 #include <cpus.h>
 #include <mach_ldebug.h>
 
@@ -288,7 +319,9 @@ extern      int     simple_lock_try_no_trace(simple_lock_t l);
 extern void    simple_unlock_no_trace(simple_lock_t l);
 #endif /* ETAP_LOCK_TRACE */
 
-#endif /* MACH_KERNEL_PRIVATE */
+#endif /* MACH_KERNEL_PRIVATE */
+
+#endif /* __APPLE_API_PRIVATE */
 
 /*
  * If we got to here and we still don't have simple_lock_init
@@ -302,7 +335,9 @@ extern      void    simple_unlock_no_trace(simple_lock_t l);
 #define simple_lock_try(l)     usimple_lock_try(l)
 #define simple_lock_addr(l)    (&(l))
 #define        __slock_held_func__(l)  usimple_lock_held(l)
-#endif / * !defined(simple_lock_init) */
+#define thread_sleep_simple_lock(l, e, i) \
+                               thread_sleep_usimple_lock((l), (e), (i))
+#endif /* !defined(simple_lock_init) */
 
 #if    USLOCK_DEBUG
 /*
@@ -324,9 +359,12 @@ extern     void    simple_unlock_no_trace(simple_lock_t l);
  */
 #define        simple_lock_held(l)     __slock_held_func__(l)
 #define        check_simple_locks()    usimple_lock_none_held()
+
 #else  /* USLOCK_DEBUG */
+
 #define        simple_lock_held(l)
 #define        check_simple_locks()
+
 #endif /* USLOCK_DEBUG */
 
 #endif /*!_SIMPLE_LOCK_H_*/