xnu-517.tar.gz

[apple/xnu.git] / bsd / hfs / hfscommon / headers / BTreesInternal.h

diff --git a/bsd/hfs/hfscommon/headers/BTreesInternal.h b/bsd/hfs/hfscommon/headers/BTreesInternal.h
index 4ae9e7ad31c3ddaeabd81165957bc52095e84619..00c9bfabe444be86b655486a94fa65de4f8c9db9 100644 (file)
--- a/bsd/hfs/hfscommon/headers/BTreesInternal.h
+++ b/bsd/hfs/hfscommon/headers/BTreesInternal.h
@@ -1,21 +1,24 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
  *
  * @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@
  */
@@ -217,6 +220,8 @@ enum BTreeTypes{
        kReservedBTreeType              = 255           //
 };
 
+#define        kBTreeHeaderUserBytes   128
+
 
 typedef BTreeKey *BTreeKeyPtr;
 
@@ -233,7 +238,8 @@ struct BTreeInfoRec{
        ItemCount                       numRecords;
        ItemCount                       numNodes;
        ItemCount                       numFreeNodes;
-       UInt32                          reserved;
+       UInt8                           keyCompareType;
+       UInt8                           reserved[3];
 };
 typedef struct BTreeInfoRec BTreeInfoRec;
 typedef BTreeInfoRec *BTreeInfoPtr;
@@ -279,12 +285,8 @@ typedef BTreeIterator *BTreeIteratorPtr;
 
 typedef SInt32 (* IterateCallBackProcPtr)(BTreeKeyPtr key, void * record, UInt16 recordLen, void * state);
 
-extern OSStatus        BTOpenPath                      (FCB                                            *filePtr,
-                                                                        KeyCompareProcPtr                       keyCompareProc,
-                                                                        GetBlockProcPtr                         getBlockProc,
-                                                                        ReleaseBlockProcPtr             releaseBlockProc,
-                                                                        SetEndOfForkProcPtr             setEndOfForkProc,
-                                                                        SetBlockSizeProcPtr             setBlockSizeProc );
+
+extern OSStatus        BTOpenPath(FCB *filePtr, KeyCompareProcPtr keyCompareProc);
 
 extern OSStatus        BTClosePath                     (FCB                                            *filePtr );
 
@@ -339,10 +341,20 @@ extern OSStatus   BTGetLastSync           (FCB                                            *filePtr,
 extern OSStatus        BTSetLastSync           (FCB                                            *filePtr,
                                                                         UInt32                                         lastfsync );
 
-extern OSStatus        BTCheckFreeSpace        (FCB                                            *filePtr);
-
 extern OSStatus        BTHasContiguousNodes(FCB                                                *filePtr);
 
+extern OSStatus BTGetUserData(FCB *filePtr, void * dataPtr, int dataSize);
+
+extern OSStatus BTSetUserData(FCB *filePtr, void * dataPtr, int dataSize);
+
+/* B-tree node reserve routines. */
+extern void BTReserveSetup(void);
+
+extern int  BTReserveSpace(FCB *file, int operations, void * data);
+
+extern int  BTReleaseReserve(FCB *file, void * data);
+
+
 #endif /* __APPLE_API_PRIVATE */
 #endif /* KERNEL */
 #endif // __BTREESINTERNAL__