[janderwald] 38115: - Implement KsCreateAllocator, KsRegisterWorker, KsUnregisterWorker, KsRegisterCountedWorker, KsDecrementCountedWorker, KsIncrementCountedWorker, KsQueueWorkItem

Author: janderwald
Date: Tue Dec 16 07:19:53 2008
New Revision: 38115

URL: http://svn.reactos.org/svn/reactos?rev=38115&view=rev
Log:
- Implement KsCreateAllocator, KsRegisterWorker, KsUnregisterWorker,
KsRegisterCountedWorker, KsDecrementCountedWorker, KsIncrementCountedWorker,
KsQueueWorkItem

Modified:
    trunk/reactos/drivers/ksfilter/ks/allocators.c
    trunk/reactos/drivers/ksfilter/ks/ks.rbuild
    trunk/reactos/drivers/ksfilter/ks/worker.c

Modified: trunk/reactos/drivers/ksfilter/ks/allocators.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/alloca…
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/allocators.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/allocators.c [iso-8859-1] Tue Dec 16 07:19:53 2008
@@ -20,14 +20,13 @@
 }
 
 /*
-    @unimplemented
+    @implemented
 */
 KSDDKAPI NTSTATUS NTAPI
 KsCreateDefaultAllocator(
     IN  PIRP Irp)
 {
-    UNIMPLEMENTED;
-    return STATUS_UNSUCCESSFUL;
+    return KsCreateDefaultAllocatorEx(Irp, NULL, NULL, NULL, NULL, NULL);
 }
 
 /*
@@ -54,7 +53,14 @@
     IN  PFNKSINITIALIZEALLOCATOR InitializeAllocator OPTIONAL,
     IN  PFNKSDELETEALLOCATOR DeleteAllocator OPTIONAL)
 {
-    UNIMPLEMENTED;
+    NTSTATUS Status;
+    PKSALLOCATOR_FRAMING AllocatorFraming;
+
+   Status = KsValidateAllocatorCreateRequest(Irp, &AllocatorFraming);
+   if (!NT_SUCCESS(Status))
+       return STATUS_INVALID_PARAMETER;
+
+
     return STATUS_UNSUCCESSFUL;
 }
 

Modified: trunk/reactos/drivers/ksfilter/ks/ks.rbuild
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/ks.rbu…
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/ks.rbuild [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/ks.rbuild [iso-8859-1] Tue Dec 16 07:19:53 2008
@@ -6,6 +6,7 @@
 	<include base="ks">../include</include>
 	<importlibrary definition="ks.spec" />
 	<library>ntoskrnl</library>
+	<library>hal</library>
 	<define name="BUILDING_KS" />
 	<define name="_NTDDK_" />
 	<define name="_COMDDK_" />

Modified: trunk/reactos/drivers/ksfilter/ks/worker.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/worker…
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/worker.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/worker.c [iso-8859-1] Tue Dec 16 07:19:53 2008
@@ -6,30 +6,87 @@
 #include <debug.h>
 #include <ks.h>
 
+
+typedef struct
+{
+    KEVENT Event;
+    KSPIN_LOCK Lock;
+    WORK_QUEUE_TYPE Type;
+    LONG Counter;
+    PWORK_QUEUE_ITEM WorkItem;
+    ULONG WorkItemActive;
+    ULONG DeleteInProgress;
+}KS_WORKER;
+
 /*
-    @unimplemented
+    @implemented
 */
-KSDDKAPI NTSTATUS NTAPI
+KSDDKAPI
+NTSTATUS
+NTAPI
 KsRegisterWorker(
     IN  WORK_QUEUE_TYPE WorkQueueType,
     OUT PKSWORKER* Worker)
 {
+    KS_WORKER * KsWorker;
     UNIMPLEMENTED;
-    return STATUS_UNSUCCESSFUL;
+
+    if (WorkQueueType != CriticalWorkQueue && 
+        WorkQueueType != DelayedWorkQueue &&
+        WorkQueueType != HyperCriticalWorkQueue)
+    {
+        return STATUS_INVALID_PARAMETER;
+    }
+
+    KsWorker = ExAllocatePoolWithTag(NonPagedPool, sizeof(KS_WORKER), 0);
+    if (!KsWorker)
+        return STATUS_INSUFFICIENT_RESOURCES;
+
+    KsWorker->Type = WorkQueueType;
+    KsWorker->Counter = 0;
+    KsWorker->WorkItemActive = 0;
+    KsWorker->WorkItem = NULL;
+    KsWorker->DeleteInProgress = TRUE;
+    KeInitializeSpinLock(&KsWorker->Lock);
+    KeInitializeEvent(&KsWorker->Event, NotificationEvent, FALSE);
+
+    *Worker = KsWorker;
+    return STATUS_SUCCESS;
 }
 
 /*
-    @unimplemented
+    @implemented
 */
 KSDDKAPI VOID NTAPI
 KsUnregisterWorker(
     IN  PKSWORKER Worker)
 {
-    UNIMPLEMENTED;
+    KS_WORKER * KsWorker;
+    KIRQL OldIrql;
+    ULONG bWait = FALSE;
+
+    if (!Worker)
+        return;
+
+    KsWorker = (KS_WORKER *)Worker;
+
+    KsWorker->DeleteInProgress = TRUE;
+
+    if (KsWorker->WorkItemActive)
+    {
+        KeReleaseSpinLock(&KsWorker->Lock, OldIrql);
+        KeWaitForSingleObject(&KsWorker->Event, Executive, KernelMode, FALSE,
NULL);
+    }
+    else
+    {
+        KeReleaseSpinLock(&KsWorker->Lock, OldIrql);
+    }
+
+    ExFreePoolWithTag(KsWorker, 0);
 }
 
 /*
-    @unimplemented
+    @implemented
 */
 KSDDKAPI NTSTATUS NTAPI
 KsRegisterCountedWorker(
@@ -37,40 +94,98 @@
     IN  PWORK_QUEUE_ITEM CountedWorkItem,
     OUT PKSWORKER* Worker)
 {
-    UNIMPLEMENTED;
-    return STATUS_UNSUCCESSFUL;
+    NTSTATUS Status;
+    KS_WORKER * KsWorker;
+
+    Status = KsRegisterWorker(WorkQueueType, Worker);
+
+    if (NT_SUCCESS(Status))
+    {
+        KsWorker = (KS_WORKER *)Worker;
+        KsWorker->WorkItem = CountedWorkItem;
+    }
+
+    return Status;
 }
 
 /*
-    @unimplemented
+    @implemented
 */
-KSDDKAPI ULONG NTAPI
+KSDDKAPI
+ULONG
+NTAPI
 KsDecrementCountedWorker(
     IN  PKSWORKER Worker)
 {
-    UNIMPLEMENTED;
-    return 0;
+    KS_WORKER * KsWorker;
+    LONG Counter;
+
+    if (!Worker)
+        return STATUS_INVALID_PARAMETER;
+
+    KsWorker = (KS_WORKER *)Worker;
+    Counter = InterlockedDecrement(&KsWorker->Counter);
+
+    if (KsWorker->DeleteInProgress)
+    {
+        /* signal that we are done */
+        KeSetEvent(&KsWorker->Event, 0, 0);
+    }
+
+    return Counter;
 }
 
 /*
-    @unimplemented
+    @implemented
 */
-KSDDKAPI ULONG NTAPI
+KSDDKAPI
+ULONG
+NTAPI
 KsIncrementCountedWorker(
     IN  PKSWORKER Worker)
 {
-    UNIMPLEMENTED;
-    return 0;
+    KS_WORKER * KsWorker;
+    LONG Counter;
+
+    if (!Worker)
+        return STATUS_INVALID_PARAMETER;
+
+    KsWorker = (KS_WORKER *)Worker;
+
+    Counter = InterlockedIncrement(&KsWorker->Counter);
+    if (Counter == 1)
+    {
+        KsQueueWorkItem(Worker, KsWorker->WorkItem);
+    }
+    return Counter;
 }
 
 /*
-    @unimplemented
+    @implemented
 */
-KSDDKAPI NTSTATUS NTAPI
+KSDDKAPI
+NTSTATUS
+NTAPI
 KsQueueWorkItem(
     IN  PKSWORKER Worker,
     IN  PWORK_QUEUE_ITEM WorkItem)
 {
-    UNIMPLEMENTED;
-    return STATUS_UNSUCCESSFUL;
+    KS_WORKER * KsWorker;
+    KIRQL OldIrql;
+    NTSTATUS Status = STATUS_SUCCESS;
+
+    if (!Worker || !WorkItem)
+        return STATUS_INVALID_PARAMETER;
+
+    KsWorker = (KS_WORKER *)Worker;
+    KeAcquireSpinLock(&KsWorker->Lock, &OldIrql);
+
+    if (!KsWorker->DeleteInProgress)
+    {
+        ExQueueWorkItem(WorkItem, KsWorker->Type);
+        Status = STATUS_UNSUCCESSFUL;
+    }
+
+    KeReleaseSpinLock(&KsWorker->Lock, OldIrql);
+    return Status;
 }