[ros-diffs] [ekohl] 13826: Support asynchronous (aka overlapped)
connect, read and write requests.
ekohl at svn.reactos.com
ekohl at svn.reactos.com
Sat Mar 5 13:08:51 CET 2005
Support asynchronous (aka overlapped) connect, read and write requests.
Modified: trunk/reactos/drivers/fs/np/create.c
Modified: trunk/reactos/drivers/fs/np/fsctrl.c
Modified: trunk/reactos/drivers/fs/np/npfs.h
Modified: trunk/reactos/drivers/fs/np/rw.c
_____
Modified: trunk/reactos/drivers/fs/np/create.c
--- trunk/reactos/drivers/fs/np/create.c 2005-03-05 11:38:48 UTC
(rev 13825)
+++ trunk/reactos/drivers/fs/np/create.c 2005-03-05 12:08:50 UTC
(rev 13826)
@@ -48,17 +48,18 @@
NpfsFindListeningServerInstance(PNPFS_PIPE Pipe)
{
PLIST_ENTRY CurrentEntry;
- PNPFS_FCB ServerFcb;
+ PNPFS_WAITER_ENTRY Waiter;
- CurrentEntry = Pipe->ServerFcbListHead.Flink;
- while (CurrentEntry != &Pipe->ServerFcbListHead)
+ CurrentEntry = Pipe->WaiterListHead.Flink;
+ while (CurrentEntry != &Pipe->WaiterListHead)
{
- ServerFcb = CONTAINING_RECORD(CurrentEntry, NPFS_FCB,
FcbListEntry);
- if (ServerFcb->PipeState == FILE_PIPE_LISTENING_STATE)
+ Waiter = CONTAINING_RECORD(CurrentEntry, NPFS_WAITER_ENTRY,
Entry);
+ if (Waiter->Fcb->PipeState == FILE_PIPE_LISTENING_STATE)
{
- DPRINT("Server found! Fcb %p\n", ServerFcb);
- return ServerFcb;
+ DPRINT("Server found! Fcb %p\n", Waiter->Fcb);
+ return Waiter->Fcb;
}
+
CurrentEntry = CurrentEntry->Flink;
}
@@ -66,6 +67,35 @@
}
+static VOID
+NpfsSignalAndRemoveListeningServerInstance(PNPFS_PIPE Pipe,
+ PNPFS_FCB Fcb)
+{
+ PLIST_ENTRY CurrentEntry;
+ PNPFS_WAITER_ENTRY Waiter;
+
+ CurrentEntry = Pipe->WaiterListHead.Flink;
+ while (CurrentEntry != &Pipe->WaiterListHead)
+ {
+ Waiter = CONTAINING_RECORD(CurrentEntry, NPFS_WAITER_ENTRY,
Entry);
+ if (Waiter->Fcb == Fcb)
+ {
+ DPRINT("Server found! Fcb %p\n", Waiter->Fcb);
+
+ KeSetEvent(Waiter->Irp->UserEvent, 0, FALSE);
+ Waiter->Irp->UserIosb->Status = FILE_PIPE_CONNECTED_STATE;
+ Waiter->Irp->UserIosb->Information = 0;
+ IoCompleteRequest(Waiter->Irp, IO_NO_INCREMENT);
+
+ RemoveEntryList(&Waiter->Entry);
+ ExFreePool(Waiter);
+ return;
+ }
+ CurrentEntry = CurrentEntry->Flink;
+ }
+}
+
+
NTSTATUS STDCALL
NpfsCreate(PDEVICE_OBJECT DeviceObject,
PIRP Irp)
@@ -206,9 +236,8 @@
ClientFcb->PipeState = FILE_PIPE_CONNECTED_STATE;
ServerFcb->PipeState = FILE_PIPE_CONNECTED_STATE;
- /* Wake server thread */
- DPRINT("Setting the ConnectEvent for %x\n", ServerFcb);
- KeSetEvent(&ServerFcb->ConnectEvent, 0, FALSE);
+ /* Signal the server thread and remove it from the waiter list */
+ NpfsSignalAndRemoveListeningServerInstance(Pipe, ServerFcb);
}
KeUnlockMutex(&Pipe->FcbListLock);
@@ -318,6 +347,7 @@
InitializeListHead(&Pipe->ServerFcbListHead);
InitializeListHead(&Pipe->ClientFcbListHead);
+ InitializeListHead(&Pipe->WaiterListHead);
KeInitializeMutex(&Pipe->FcbListLock, 0);
Pipe->PipeType = Buffer->NamedPipeType;
_____
Modified: trunk/reactos/drivers/fs/np/fsctrl.c
--- trunk/reactos/drivers/fs/np/fsctrl.c 2005-03-05 11:38:48 UTC
(rev 13825)
+++ trunk/reactos/drivers/fs/np/fsctrl.c 2005-03-05 12:08:50 UTC
(rev 13826)
@@ -18,9 +18,67 @@
/* FUNCTIONS
*****************************************************************/
+static VOID
+NpfsListeningCancelRoutine(IN PDEVICE_OBJECT DeviceObject,
+ IN PIRP Irp)
+{
+ PNPFS_WAITER_ENTRY Waiter;
+
+ DPRINT1("NpfsListeningCancelRoutine() called\n");
+ /* FIXME: Not tested. */
+
+ Waiter = Irp->Tail.Overlay.DriverContext[0];
+
+ RemoveEntryList(&Waiter->Entry);
+ ExFreePool(Waiter);
+
+ IoReleaseCancelSpinLock(Irp->CancelIrql);
+
+ Irp->IoStatus.Status = STATUS_CANCELLED;
+ Irp->IoStatus.Information = 0;
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+}
+
+
static NTSTATUS
-NpfsConnectPipe(PNPFS_FCB Fcb)
+NpfsAddListeningServerInstance(PIRP Irp,
+ PNPFS_FCB Fcb)
{
+ PNPFS_WAITER_ENTRY Entry;
+ KIRQL OldIrql;
+
+ Entry = ExAllocatePool(NonPagedPool, sizeof(NPFS_WAITER_ENTRY));
+ if (Entry == NULL)
+ return STATUS_INSUFFICIENT_RESOURCES;
+
+ Entry->Irp = Irp;
+ Entry->Fcb = Fcb;
+ InsertTailList(&Fcb->Pipe->WaiterListHead, &Entry->Entry);
+
+ IoAcquireCancelSpinLock(&OldIrql);
+ if (!Irp->Cancel)
+ {
+ Irp->Tail.Overlay.DriverContext[0] = Entry;
+ IoMarkIrpPending(Irp);
+ IoSetCancelRoutine(Irp, NpfsListeningCancelRoutine);
+ IoReleaseCancelSpinLock(OldIrql);
+ return STATUS_PENDING;
+ }
+ /* IRP has already been cancelled */
+ IoReleaseCancelSpinLock(OldIrql);
+
+ DPRINT1("FIXME: Remove waiter entry!\n");
+ RemoveEntryList(&Entry->Entry);
+ ExFreePool(Entry);
+
+ return STATUS_CANCELLED;
+}
+
+
+static NTSTATUS
+NpfsConnectPipe(PIRP Irp,
+ PNPFS_FCB Fcb)
+{
PNPFS_PIPE Pipe;
PLIST_ENTRY current_entry;
PNPFS_FCB ClientFcb;
@@ -88,29 +146,18 @@
current_entry = current_entry->Flink;
}
- KeUnlockMutex(&Pipe->FcbListLock);
-
/* no listening client fcb found */
DPRINT("No listening client fcb found -- waiting for client\n");
Fcb->PipeState = FILE_PIPE_LISTENING_STATE;
- Status = KeWaitForSingleObject(&Fcb->ConnectEvent,
- UserRequest,
- KernelMode,
- FALSE,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("KeWaitForSingleObject() failed (Status %lx)\n", Status);
- return Status;
- }
+ Status = NpfsAddListeningServerInstance(Irp, Fcb);
- Fcb->PipeState = FILE_PIPE_CONNECTED_STATE;
+ KeUnlockMutex(&Pipe->FcbListLock);
- DPRINT("Client Fcb: %p\n", Fcb->OtherSide);
+ DPRINT("NpfsConnectPipe() done (Status %lx)\n", Status);
- return STATUS_PIPE_CONNECTED;
+ return Status;
}
@@ -327,7 +374,6 @@
}
-
NTSTATUS STDCALL
NpfsFileSystemControl(PDEVICE_OBJECT DeviceObject,
PIRP Irp)
@@ -366,7 +412,7 @@
case FSCTL_PIPE_LISTEN:
DPRINT("Connecting pipe %wZ\n", &Pipe->PipeName);
- Status = NpfsConnectPipe(Fcb);
+ Status = NpfsConnectPipe(Irp, Fcb);
break;
case FSCTL_PIPE_PEEK:
@@ -439,12 +485,15 @@
Status = STATUS_UNSUCCESSFUL;
}
- Irp->IoStatus.Status = Status;
- Irp->IoStatus.Information = 0;
+ if (Status != STATUS_PENDING)
+ {
+ Irp->IoStatus.Status = Status;
+ Irp->IoStatus.Information = 0;
+
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ }
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
-
- return(Status);
+ return Status;
}
_____
Modified: trunk/reactos/drivers/fs/np/npfs.h
--- trunk/reactos/drivers/fs/np/npfs.h 2005-03-05 11:38:48 UTC (rev
13825)
+++ trunk/reactos/drivers/fs/np/npfs.h 2005-03-05 12:08:50 UTC (rev
13826)
@@ -19,6 +19,7 @@
KMUTEX FcbListLock;
LIST_ENTRY ServerFcbListHead;
LIST_ENTRY ClientFcbListHead;
+ LIST_ENTRY WaiterListHead;
ULONG PipeType;
ULONG ReadMode;
ULONG WriteMode;
@@ -52,7 +53,15 @@
KSPIN_LOCK DataListLock; /* Data queue lock */
} NPFS_FCB, *PNPFS_FCB;
+typedef struct _NPFS_WAITER_ENTRY
+{
+ LIST_ENTRY Entry;
+ PIRP Irp;
+ PNPFS_PIPE Pipe;
+ PNPFS_FCB Fcb;
+} NPFS_WAITER_ENTRY, *PNPFS_WAITER_ENTRY;
+
extern NPAGED_LOOKASIDE_LIST NpfsPipeDataLookasideList;
_____
Modified: trunk/reactos/drivers/fs/np/rw.c
--- trunk/reactos/drivers/fs/np/rw.c 2005-03-05 11:38:48 UTC (rev
13825)
+++ trunk/reactos/drivers/fs/np/rw.c 2005-03-05 12:08:50 UTC (rev
13826)
@@ -101,7 +101,6 @@
/* FIXME: check if in blocking mode */
if (Fcb->ReadDataAvailable == 0)
{
- KeResetEvent(&Fcb->Event);
if (Fcb->PipeState == FILE_PIPE_CONNECTED_STATE)
{
KeSetEvent(&WriterFcb->Event, IO_NO_INCREMENT, FALSE);
@@ -167,6 +166,7 @@
if (Length == 0)
{
KeSetEvent(&WriterFcb->Event, IO_NO_INCREMENT, FALSE);
+ KeResetEvent(&Fcb->Event);
break;
}
}
@@ -187,8 +187,19 @@
#endif
Information = CopyLength;
- Fcb->ReadDataAvailable = 0;
- Fcb->WriteQuotaAvailable = Fcb->MaxDataLength;
+
+ if (Fcb->ReadDataAvailable > Length)
+ {
+ memmove(Fcb->Data, Fcb->Data + Length,
+ Fcb->ReadDataAvailable - Length);
+ Fcb->ReadDataAvailable -= Length;
+ Status = STATUS_MORE_ENTRIES;
+ }
+ else
+ {
+ Fcb->ReadDataAvailable = 0;
+ Fcb->WriteQuotaAvailable = Fcb->MaxDataLength;
+ }
}
if (Information > 0)
@@ -197,6 +208,7 @@
{
KeSetEvent(&WriterFcb->Event, IO_NO_INCREMENT, FALSE);
}
+ KeResetEvent(&Fcb->Event);
break;
}
}
@@ -291,7 +303,6 @@
{
if (ReaderFcb->WriteQuotaAvailable == 0)
{
- KeResetEvent(&Fcb->Event);
KeSetEvent(&ReaderFcb->Event, IO_NO_INCREMENT, FALSE);
KeReleaseSpinLock(&ReaderFcb->DataListLock, OldIrql);
if (Fcb->PipeState != FILE_PIPE_CONNECTED_STATE)
@@ -355,6 +366,7 @@
if (Length == 0)
{
KeSetEvent(&ReaderFcb->Event, IO_NO_INCREMENT, FALSE);
+ KeResetEvent(&Fcb->Event);
break;
}
}
@@ -374,6 +386,7 @@
if (Information > 0)
{
KeSetEvent(&ReaderFcb->Event, IO_NO_INCREMENT, FALSE);
+ KeResetEvent(&Fcb->Event);
break;
}
}
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