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sys: request work item refactoring

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This commit is contained in:
Bill Zissimopoulos
2016-11-08 15:31:15 -08:00
parent adeb847c7e
commit 1e93f0d10d
3 changed files with 63 additions and 25 deletions
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29
src/sys/driver.h
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@ -679,18 +679,25 @@ VOID FspMetaCacheInvalidateItem(FSP_META_CACHE *MetaCache, UINT64 ItemIndex);
#define FSP_FSCTL_TRANSACT_REQ_ALIGNMENT 16
enum
{
FspIopRequestMustSucceed = 0x01,
FspIopRequestNonPaged = 0x02,
FspIopCreateRequestMustSucceed = 0x01,
FspIopCreateRequestNonPaged = 0x02,
FspIopCreateRequestWorkItem = 0x04,
};
typedef VOID FSP_IOP_REQUEST_FINI(FSP_FSCTL_TRANSACT_REQ *Request, PVOID Context[4]);
typedef NTSTATUS FSP_IOP_REQUEST_WORK(
PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp,
BOOLEAN CanWait);
typedef struct
{
FSP_IOP_REQUEST_WORK *WorkRoutine;
WORK_QUEUE_ITEM WorkQueueItem;
} FSP_FSCTL_TRANSACT_REQ_WORK_ITEM;
typedef struct
{
FSP_IOP_REQUEST_FINI *RequestFini;
PVOID Context[4];
FSP_FSCTL_TRANSACT_RSP *Response;
FSP_FSCTL_TRANSACT_REQ_WORK_ITEM *WorkItem;
__declspec(align(FSP_FSCTL_TRANSACT_REQ_ALIGNMENT)) UINT8 RequestBuf[];
} FSP_FSCTL_TRANSACT_REQ_HEADER;
FSP_FSCTL_STATIC_ASSERT(sizeof(FSP_FSCTL_TRANSACT_REQ_HEADER) <= 64,
@ -702,6 +709,12 @@ PVOID *FspIopRequestContextAddress(FSP_FSCTL_TRANSACT_REQ *Request, ULONG I)
FSP_FSCTL_TRANSACT_REQ_HEADER *RequestHeader = (PVOID)((PUINT8)Request - sizeof *RequestHeader);
return &RequestHeader->Context[I];
}
static inline
FSP_FSCTL_TRANSACT_REQ_WORK_ITEM *FspIopRequestWorkItem(FSP_FSCTL_TRANSACT_REQ *Request)
{
FSP_FSCTL_TRANSACT_REQ_HEADER *RequestHeader = (PVOID)((PUINT8)Request - sizeof *RequestHeader);
return RequestHeader->WorkItem;
}
NTSTATUS FspIopCreateRequestFunnel(
PIRP Irp, PUNICODE_STRING FileName, ULONG ExtraSize, FSP_IOP_REQUEST_FINI *RequestFini,
ULONG Flags, FSP_FSCTL_TRANSACT_REQ **PRequest);
@ -729,13 +742,13 @@ VOID FspIrpDeleteRequest(PIRP Irp)
#define FspIopCreateRequest(I, F, E, P) \
FspIopCreateRequestFunnel(I, F, E, 0, 0, P)
#define FspIopCreateRequestMustSucceed(I, F, E, P)\
FspIopCreateRequestFunnel(I, F, E, 0, FspIopRequestMustSucceed, P)
FspIopCreateRequestFunnel(I, F, E, 0, FspIopCreateRequestMustSucceed, P)
#define FspIopCreateRequestEx(I, F, E, RF, P)\
FspIopCreateRequestFunnel(I, F, E, RF, 0, P)
#define FspIopCreateRequestMustSucceedEx(I, F, E, RF, P)\
FspIopCreateRequestFunnel(I, F, E, RF, FspIopRequestMustSucceed, P)
#define FspIopCreateRequestWorkItem(I, E, RF, P)\
FspIopCreateRequestFunnel(I, 0, E, RF, FspIopRequestNonPaged, P)
FspIopCreateRequestFunnel(I, F, E, RF, FspIopCreateRequestMustSucceed, P)
#define FspIopCreateRequestAndWorkItem(I, E, RF, P)\
FspIopCreateRequestFunnel(I, 0, E, RF, FspIopCreateRequestWorkItem, P)
#define FspIopRequestContext(Request, I)\
(*FspIopRequestContextAddress(Request, I))
#define FspIopPostWorkRequest(D, R) FspIopPostWorkRequestFunnel(D, R, FALSE)
@ -744,10 +757,6 @@ VOID FspIrpDeleteRequest(PIRP Irp)
#define FspIopCompleteIrp(I, R) FspIopCompleteIrpEx(I, R, TRUE)
/* work queue processing */
enum
{
FspWqRequestWorkRoutine = 3,
};
NTSTATUS FspWqCreateAndPostIrpWorkItem(PIRP Irp,
FSP_IOP_REQUEST_WORK *WorkRoutine, FSP_IOP_REQUEST_FINI *RequestFini,
BOOLEAN CreateAndPost);