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Major refactoring: IRP_MJ_CREATE

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This commit is contained in:
Bill Zissimopoulos
2015-12-24 11:48:52 -08:00
parent fbed887601
commit 983ba0bcc1
2 changed files with 285 additions and 30 deletions
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78
src/sys/driver.h
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@ -448,6 +448,57 @@ NTSTATUS FspVolumeTransact(
NTSTATUS FspVolumeWork(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
/* file objects */
#define FspFileContextKind(FsContext) \
(((FSP_FILE_CONTEXT *)FsContext)->Header.NodeTypeCode)
#define FspFileContextIsValid(FsContext)\
(0 != (FsContext) && FspFileContextFileKind == ((FSP_FILE_CONTEXT *)FsContext)->Header.NodeTypeCode)
enum
{
FspFileContextFileKind = 'BZ',
};
typedef struct
{
ERESOURCE Resource;
ERESOURCE PagingIoResource;
FAST_MUTEX HeaderFastMutex;
} FSP_FILE_CONTEXT_NONPAGED;
typedef struct
{
FSRTL_ADVANCED_FCB_HEADER Header;
FSP_FILE_CONTEXT_NONPAGED *NonPaged;
/* interlocked access */
LONG RefCount;
#if 0
/* protected by Header.Resource */
LONG OpenCount;
SHARE_ACCESS ShareAccess;
BOOLEAN DeletePending; /* FileDispositionInformation */
BOOLEAN DeleteOnClose; /* FILE_DELETE_ON_CLOSE */
FSP_DEVICE_GENERIC_TABLE_ELEMENT ElementStorage;
PDEVICE_OBJECT FsvolDeviceObject;
UINT64 UserContext;
#endif
/* read-only after creation */
UNICODE_STRING FileName;
WCHAR FileNameBuf[];
} FSP_FILE_CONTEXT;
NTSTATUS FspFileContextCreate(PDEVICE_OBJECT DeviceObject,
ULONG ExtraSize, FSP_FILE_CONTEXT **PFsContext);
VOID FspFileContextDelete(FSP_FILE_CONTEXT *Context);
static inline
VOID FspFileContextRetain(FSP_FILE_CONTEXT *Context)
{
InterlockedIncrement(&Context->RefCount);
}
static inline
VOID FspFileContextRelease(FSP_FILE_CONTEXT *Context)
{
LONG RefCount = InterlockedDecrement(&Context->RefCount);
if (0 == RefCount)
FspFileContextDelete(Context);
}
/* debug */
#if DBG
const char *NtStatusSym(NTSTATUS Status);
@ -464,21 +515,6 @@ extern FSP_IOPREP_DISPATCH *FspIopPrepareFunction[];
extern FSP_IOCMPL_DISPATCH *FspIopCompleteFunction[];
#if 0
/* file objects */
#define FspFileContextKind(FsContext) \
(((FSP_FILE_CONTEXT *)FsContext)->Header.NodeTypeCode)
#define FspFileContextIsValid(FsContext)\
(0 != (FsContext) && FspFileContextFileKind == ((FSP_FILE_CONTEXT *)FsContext)->Header.NodeTypeCode)
enum
{
FspFileContextFileKind = 'BZ',
};
typedef struct
{
ERESOURCE Resource;
ERESOURCE PagingIoResource;
FAST_MUTEX HeaderFastMutex;
} FSP_FILE_CONTEXT_NONPAGED;
typedef struct
{
FSRTL_ADVANCED_FCB_HEADER Header;
@ -513,18 +549,6 @@ LONG FspFileContextClose(FSP_FILE_CONTEXT *Context)
ASSERT(0 < Context->OpenCount);
return --Context->OpenCount;
}
static inline
VOID FspFileContextRetain(FSP_FILE_CONTEXT *Context)
{
InterlockedIncrement(&Context->RefCount);
}
static inline
VOID FspFileContextRelease(FSP_FILE_CONTEXT *Context)
{
LONG RefCount = InterlockedDecrement(&Context->RefCount);
if (0 == RefCount)
FspFileContextDelete(Context);
}
#endif