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sys,dll: Cleanup/TruncateOnClose overhaul

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This commit is contained in:
Bill Zissimopoulos
2016-12-21 16:09:24 -08:00
parent 8d6314e2db
commit c897ddd864
13 changed files with 203 additions and 69 deletions
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7
inc/winfsp/fsctl.h
View File

@@ -146,7 +146,7 @@ typedef struct
UINT32 ExtendedAttributes:1; /* unimplemented; set to 0 */
UINT32 ReadOnlyVolume:1;
/* kernel-mode flags */
UINT32 PostCleanupOnDeleteOnly:1; /* post Cleanup when deleting a file only */
UINT32 PostCleanupWhenModifiedOnly:1; /* post Cleanup when a file was modified/deleted */
UINT32 KmReservedFlags:5;
/* user-mode flags */
UINT32 UmFileContextIsUserContext2:1; /* user mode: FileContext parameter is UserContext2 */
@@ -248,6 +248,11 @@ typedef struct
UINT64 UserContext;
UINT64 UserContext2;
UINT32 Delete:1; /* file must be deleted */
UINT32 SetAllocationSize:1;
UINT32 SetArchiveBit:1;
UINT32 SetLastAccessTime:1;
UINT32 SetLastWriteTime:1;
UINT32 SetChangeTime:1;
} Cleanup;
struct
{

24
inc/winfsp/winfsp.h
View File

@@ -122,6 +122,15 @@ typedef enum
FSP_FILE_SYSTEM_OPERATION_GUARD_STRATEGY_FINE = 0,
FSP_FILE_SYSTEM_OPERATION_GUARD_STRATEGY_COARSE,
} FSP_FILE_SYSTEM_OPERATION_GUARD_STRATEGY;
enum
{
FspCleanupDelete = 0x01,
FspCleanupSetAllocationSize = 0x02,
FspCleanupSetArchiveBit = 0x10,
FspCleanupSetLastAccessTime = 0x20,
FspCleanupSetLastWriteTime = 0x40,
FspCleanupSetChangeTime = 0x80,
};
/**
* @class FSP_FILE_SYSTEM
* File system interface.
@@ -332,8 +341,8 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
* deleted during Cleanup.
*
* As an optimization a file system may specify the FSP_FSCTL_VOLUME_PARAMS ::
* PostCleanupOnDeleteOnly flag. In this case the FSD will only post Cleanup requests when a
* file is being deleted.
* PostCleanupWhenModifiedOnly flag. In this case the FSD will only post Cleanup requests when
* the file was modified/deleted.
*
* @param FileSystem
* The file system on which this request is posted.
@@ -341,16 +350,17 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
* The file context of the file or directory to cleanup.
* @param FileName
* The name of the file or directory to cleanup. Sent only when a Delete is requested.
* @param Delete
* Determines whether to delete the file. Note that there is no way to report failure of
* this operation. Also note that when this parameter is TRUE this is the last outstanding
* cleanup for this particular file node.
* @param Flags
* These flags determine whether the file was modified and whether to delete the file.
* Note that there is no way to report failure of this operation. Also note that when
* this parameter has the FspCleanupDelete bit set, this is the last outstanding cleanup
* for this particular file node.
* @see
* Close
* CanDelete
*/
VOID (*Cleanup)(FSP_FILE_SYSTEM *FileSystem,
PVOID FileContext, PWSTR FileName, BOOLEAN Delete);
PVOID FileContext, PWSTR FileName, ULONG Flags);
/**
* Close a file.
*