X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_guts.h;h=96c576f7ef04c5d03a9d021e33017acfc63fa772;hp=c222c09c02bf2d02b37ea0665b8f18149b19535e;hb=399e637051f0912a625e74cb072cbc8528b054f8;hpb=6d328375504ad23f4731f17fcf12eeeb26a55f21

diff --git a/yaffs_guts.h b/yaffs_guts.h
index c222c09..96c576f 100644
--- a/yaffs_guts.h
+++ b/yaffs_guts.h
@@ -14,7 +14,7 @@
  *
  * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
  *
- * $Id: yaffs_guts.h,v 1.4 2005-04-24 09:57:06 charles Exp $
+ * $Id: yaffs_guts.h,v 1.10 2005-07-26 23:04:34 charles Exp $
  */
 
 #ifndef __YAFFS_GUTS_H__
@@ -179,16 +179,17 @@ typedef struct
 	unsigned sequenceNumber; 	// The sequence number of this block
 
 	// Extra info if this is an object header (YAFFS2 only)
-	unsigned extraHeaderInfoAvailable; 
-	unsigned extraParentObjectId;
-	unsigned extraIsShrinkHeader;
 	
-	yaffs_ObjectType extraObjectType;
+	unsigned extraHeaderInfoAvailable; // There is extra info available if this is not zero
+	unsigned extraParentObjectId;	   // The parent object
+	unsigned extraIsShrinkHeader;	   // Is it a shrink header?
+	
+	yaffs_ObjectType extraObjectType;  // What object type?
 
-	unsigned extraFileLength;
-	unsigned extraEquivalentObjectId;
+	unsigned extraFileLength;	   // Length if it is a file
+	unsigned extraEquivalentObjectId;  // Equivalent object Id if it is a hard link
 
-	unsigned validMarker1;
+	unsigned validMarker1;	
 	
 } yaffs_ExtendedTags;
 
@@ -282,16 +283,16 @@ typedef struct
 	YCHAR  name[YAFFS_MAX_NAME_LENGTH + 1];
 
 	// Thes following apply to directories, files, symlinks - not hard links
-	__u32 st_mode;  // protection
+	__u32 yst_mode;  // protection
 
 #ifdef CONFIG_YAFFS_WINCE
 	__u32 notForWinCE[5];
 #else
-	__u32 st_uid;   // user ID of owner
-	__u32 st_gid;    // group ID of owner 
-	__u32 st_atime; // time of last access
-	__u32 st_mtime; // time of last modification
-	__u32 st_ctime; // time of last change
+	__u32 yst_uid;   // user ID of owner
+	__u32 yst_gid;    // group ID of owner 
+	__u32 yst_atime; // time of last access
+	__u32 yst_mtime; // time of last modification
+	__u32 yst_ctime; // time of last change
 #endif
 
 	// File size  applies to files only
@@ -303,7 +304,7 @@ typedef struct
 	// Alias is for symlinks only.
 	YCHAR alias[YAFFS_MAX_ALIAS_LENGTH + 1];
 	
-	__u32 st_rdev;  // device stuff for block and char devices (maj/min)
+	__u32 yst_rdev;  // device stuff for block and char devices (maj/min)
 	
 #ifdef CONFIG_YAFFS_WINCE
 	__u32 win_ctime[2];
@@ -424,15 +425,15 @@ struct  yaffs_ObjectStruct
 	struct list_head siblings;	// siblings in a directory
 								// also used for linking up the free list
 		
-	// Where's my data in NAND?
+	// Where's my object header in NAND?
 	int chunkId;		// where it lives
 
-	int nDataChunks;	
+	int nDataChunks;	// Number of data chunks attached to the file.	
 	
 	__u32 objectId;		// the object id value
 	
 	
-	__u32 st_mode;  	// protection
+	__u32 yst_mode;  	// protection
 
 #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
 	YCHAR shortName[YAFFS_SHORT_NAME_LENGTH+1];
@@ -447,14 +448,14 @@ struct  yaffs_ObjectStruct
 	__u32 win_mtime[2];
 	__u32 win_atime[2];
 #else
-	__u32 st_uid;   	// user ID of owner
-	__u32 st_gid;    	// group ID of owner 
-	__u32 st_atime; 	// time of last access
-	__u32 st_mtime; 	// time of last modification
-	__u32 st_ctime; 	// time of last change
+	__u32 yst_uid;   	// user ID of owner
+	__u32 yst_gid;    	// group ID of owner 
+	__u32 yst_atime; 	// time of last access
+	__u32 yst_mtime; 	// time of last modification
+	__u32 yst_ctime; 	// time of last change
 #endif
 
-	__u32 st_rdev; 	    // device stuff for block and char devices
+	__u32 yst_rdev; 	    // device stuff for block and char devices
 
 
 
@@ -504,6 +505,9 @@ typedef struct {
 
 struct yaffs_DeviceStruct
 {
+	struct list_head devList;
+	const char *name;
+
 	// Entry parameters set up way early. Yaffs sets up the rest.
 	int   nBytesPerChunk; 	 // Should be a power of 2 >= 512
 	int	  nChunksPerBlock;	 // does not need to be a power of 2
@@ -558,6 +562,12 @@ struct yaffs_DeviceStruct
 
 	int isMounted;
 	
+	// Stuff to support block offsetting to support start block zero
+	int internalStartBlock;
+	int internalEndBlock;
+	int blockOffset;
+	int chunkOffset;
+	
 	// Block Info
 	yaffs_BlockInfo *blockInfo;
 	__u8 *chunkBits;   // bitmap of chunks in use
@@ -576,6 +586,7 @@ struct yaffs_DeviceStruct
 	int  nFreeTnodes;
 	yaffs_TnodeList *allocatedTnodeList;
 
+	int   isDoingGC;
 
 	int   nObjectsCreated;
 	yaffs_Object *freeObjects;
@@ -649,12 +660,12 @@ typedef struct yaffs_DeviceStruct yaffs_Device;
 // Function to manipulate block info
 static  Y_INLINE yaffs_BlockInfo* yaffs_GetBlockInfo(yaffs_Device *dev, int blk)
 {
-	if(blk < dev->startBlock || blk > dev->endBlock)
+	if(blk < dev->internalStartBlock || blk > dev->internalEndBlock)
 	{
 		T(YAFFS_TRACE_ERROR,(TSTR("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR),blk));
 		YBUG();
 	}
-	return &dev->blockInfo[blk - dev->startBlock];
+	return &dev->blockInfo[blk - dev->internalStartBlock];
 }
 
 
@@ -686,7 +697,7 @@ int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr);
 
 // File operations
 int yaffs_ReadDataFromFile(yaffs_Object *obj, __u8 *buffer, __u32 offset, int nBytes);
-int yaffs_WriteDataToFile(yaffs_Object *obj, const __u8 *buffer, __u32 offset, int nBytes);
+int yaffs_WriteDataToFile(yaffs_Object *obj, const __u8 *buffer, __u32 offset, int nBytes, int writeThrough);
 int yaffs_ResizeFile(yaffs_Object *obj, int newSize);
 
 yaffs_Object *yaffs_MknodFile(yaffs_Object *parent,const YCHAR *name, __u32 mode, __u32 uid, __u32 gid);