[PATCH 2/5] ntoskrnl.exe: Implement ExGetSharedWaiterCount().
Zebediah Figura
z.figura12 at gmail.com
Tue Apr 9 21:27:41 CDT 2019
Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
---
dlls/ntoskrnl.exe/ntoskrnl.exe.spec | 2 +-
dlls/ntoskrnl.exe/sync.c | 19 +++++++++++++++++++
include/ddk/wdm.h | 1 +
3 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
index bdf2a4463c..3324b3b6d8 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
+++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
@@ -148,7 +148,7 @@
@ stub ExGetCurrentProcessorCpuUsage
@ stdcall ExGetExclusiveWaiterCount(ptr)
@ stub ExGetPreviousMode
-@ stub ExGetSharedWaiterCount
+@ stdcall ExGetSharedWaiterCount(ptr)
@ stdcall ExInitializeNPagedLookasideList(ptr ptr ptr long long long long)
@ stdcall ExInitializePagedLookasideList(ptr ptr ptr long long long long)
@ stdcall ExInitializeResourceLite(ptr)
diff --git a/dlls/ntoskrnl.exe/sync.c b/dlls/ntoskrnl.exe/sync.c
index 823ff2b587..7009c4cfec 100644
--- a/dlls/ntoskrnl.exe/sync.c
+++ b/dlls/ntoskrnl.exe/sync.c
@@ -1106,3 +1106,22 @@ ULONG WINAPI ExGetExclusiveWaiterCount( ERESOURCE *resource )
return count;
}
+
+/***********************************************************************
+ * ExGetSharedWaiterCount (NTOSKRNL.EXE.@)
+ */
+ULONG WINAPI ExGetSharedWaiterCount( ERESOURCE *resource )
+{
+ ULONG count;
+ KIRQL irql;
+
+ TRACE("resource %p.\n", resource);
+
+ KeAcquireSpinLock( &resource->SpinLock, &irql );
+
+ count = resource->NumberOfSharedWaiters;
+
+ KeReleaseSpinLock( &resource->SpinLock, irql );
+
+ return count;
+}
diff --git a/include/ddk/wdm.h b/include/ddk/wdm.h
index 241f6d695e..a0219c4c1e 100644
--- a/include/ddk/wdm.h
+++ b/include/ddk/wdm.h
@@ -1525,6 +1525,7 @@ NTSTATUS WINAPI ExDeleteResourceLite(ERESOURCE*);
void WINAPI ExFreePool(PVOID);
void WINAPI ExFreePoolWithTag(PVOID,ULONG);
ULONG WINAPI ExGetExclusiveWaiterCount(ERESOURCE*);
+ULONG WINAPI ExGetSharedWaiterCount(ERESOURCE*);
void WINAPI ExInitializeNPagedLookasideList(PNPAGED_LOOKASIDE_LIST,PALLOCATE_FUNCTION,PFREE_FUNCTION,ULONG,SIZE_T,ULONG,USHORT);
NTSTATUS WINAPI ExInitializeResourceLite(ERESOURCE*);
PSLIST_ENTRY WINAPI ExInterlockedPopEntrySList(PSLIST_HEADER,PKSPIN_LOCK);
--
2.21.0
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