xnu-1699.22.73.tar.gz

[apple/xnu.git] / iokit / IOKit / IONVRAM.h

diff --git a/iokit/IOKit/IONVRAM.h b/iokit/IOKit/IONVRAM.h
index 58c88226e2ff97d24113cf2e884ce6e42512cc75..15bf709f62b861d3d695d437ac295a00e40d38f9 100644 (file)
--- a/iokit/IOKit/IONVRAM.h
+++ b/iokit/IOKit/IONVRAM.h
@@ -1,14 +1,19 @@
 /*
  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
@@ -18,23 +23,26 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 
 #ifndef _IOKIT_IONVRAM_H
 #define _IOKIT_IONVRAM_H
 
+#ifdef __cplusplus
 #include <IOKit/IOKitKeys.h>
 #include <IOKit/IOService.h>
 #include <IOKit/IODeviceTreeSupport.h>
 #include <IOKit/nvram/IONVRAMController.h>
-
+#endif /* __cplusplus */
 
 #define kIODTNVRAMOFPartitionName       "common"
 #define kIODTNVRAMXPRAMPartitionName    "APL,MacOS75"
 #define kIODTNVRAMPanicInfoPartitonName "APL,OSXPanic"
 #define kIODTNVRAMFreePartitionName     "wwwwwwwwwwww"
 
+#define MIN_SYNC_NOW_INTERVAL 15*60 /* Minimum 15 Minutes interval mandated */
+
 enum {
   kIODTNVRAMImageSize        = 0x2000,
   kIODTNVRAMXPRAMSize        = 0x0100,
@@ -51,9 +59,12 @@ enum {
 enum {
   kOFVariablePermRootOnly = 0,
   kOFVariablePermUserRead,
-  kOFVariablePermUserWrite
+  kOFVariablePermUserWrite,
+  kOFVariablePermKernelOnly
 };
 
+#ifdef __cplusplus
+
 class IODTNVRAM : public IOService
 {
   OSDeclareDefaultStructors(IODTNVRAM);
@@ -80,6 +91,8 @@ private:
   UInt32            _piPartitionSize;
   UInt8             *_piImage;
   bool              _systemPaniced;
+  SInt32            _lastDeviceSync;
+  bool              _freshInterval;
   
   virtual UInt8 calculatePartitionChecksum(UInt8 *partitionHeader);
   virtual IOReturn initOFVariables(void);
@@ -156,6 +169,9 @@ public:
                                       IOByteCount length);  
   
   virtual IOByteCount savePanicInfo(UInt8 *buffer, IOByteCount length);
+  virtual bool safeToSync(void);
 };
 
+#endif /* __cplusplus */
+
 #endif /* !_IOKIT_IONVRAM_H */