xnu-1228.12.14.tar.gz

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

diff --git a/osfmk/kern/call_entry.h b/osfmk/kern/call_entry.h
index 8bcbeb2818bddfaf1ac5dab4cfaac2bbe73c6fce..57ab51d5e016558a681458c0041c231143b638fe 100644 (file)
--- a/osfmk/kern/call_entry.h
+++ b/osfmk/kern/call_entry.h
@@ -1,43 +1,32 @@
 /*
- * Copyright (c) 1993-1995, 1999-2000 Apple Computer, Inc.
- * All rights reserved.
+ * Copyright (c) 1993-1995, 1999-2008 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * 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.  The rights granted to you under the 
- * License may not be used to create, or enable the creation or 
- * redistribution of, unlawful or unlicensed copies of an Apple operating 
- * system, or to circumvent, violate, or enable the circumvention or 
- * violation of, any terms of an Apple operating system software license 
- * agreement.
- *
- * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
- * Please see the License for the specific language governing rights and 
+ * 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. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
  * limitations under the License.
- *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
- * Private declarations for thread-based callouts.
- *
- * HISTORY
- *
- * 10 July 1999 (debo)
- *  Pulled into Mac OS X (microkernel).
- *
- * 3 July 1993 (debo)
- *     Created.
+ * Declarations for generic call outs.
  */
 
 #ifndef _KERN_CALL_ENTRY_H_
@@ -53,21 +42,32 @@ typedef void                        (*call_entry_func_t)(
 
 typedef struct call_entry {
     queue_chain_t              q_link;
+       queue_t                         queue;
     call_entry_func_t  func;
     call_entry_param_t param0;
     call_entry_param_t param1;
     uint64_t                   deadline;
-    enum {
-         IDLE,
-         PENDING,
-         DELAYED }                     state;
 } call_entry_data_t;
 
+typedef struct call_entry              *call_entry_t;
+
+extern queue_t         call_entry_enqueue_deadline(
+                                                       call_entry_t            entry,
+                                                       queue_t                         queue,
+                                                       uint64_t                        deadline);
+
+extern queue_t         call_entry_enqueue_tail(
+                                                       call_entry_t    entry,
+                                                       queue_t                 queue);
+
+extern queue_t         call_entry_dequeue(
+                                                       call_entry_t    entry);
+
 #define        call_entry_setup(entry, pfun, p0)                               \
 MACRO_BEGIN                                                                                            \
        (entry)->func           = (call_entry_func_t)(pfun);    \
        (entry)->param0         = (call_entry_param_t)(p0);             \
-       (entry)->state          = IDLE;                                                 \
+       (entry)->queue          = NULL;                                                 \
 MACRO_END
 
 #endif /* MACH_KERNEL_PRIVATE */