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68 lines
2.5 KiB
Diff
68 lines
2.5 KiB
Diff
From 15fd135cd7bc46416235eee58ebac0d35d8e0d9e Mon Sep 17 00:00:00 2001
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From: Zebediah Figura <z.figura12@gmail.com>
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Date: Tue, 29 Jan 2019 21:48:49 -0600
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Subject: [PATCH 09/13] ntoskrnl.exe: Implement ExGetExclusiveWaiterCount().
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Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
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---
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dlls/ntoskrnl.exe/ntoskrnl.exe.spec | 2 +-
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dlls/ntoskrnl.exe/sync.c | 19 +++++++++++++++++++
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include/ddk/wdm.h | 1 +
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3 files changed, 21 insertions(+), 1 deletion(-)
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diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
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index 79db7ee8..3d6ed649 100644
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--- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
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+++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
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@@ -146,7 +146,7 @@
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@ stub ExFreeToPagedLookasideList
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@ stub ExGetCurrentProcessorCounts
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@ stub ExGetCurrentProcessorCpuUsage
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-@ stub ExGetExclusiveWaiterCount
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+@ stdcall ExGetExclusiveWaiterCount(ptr)
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@ stub ExGetPreviousMode
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@ stub ExGetSharedWaiterCount
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@ stdcall ExInitializeNPagedLookasideList(ptr ptr ptr long long long long)
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diff --git a/dlls/ntoskrnl.exe/sync.c b/dlls/ntoskrnl.exe/sync.c
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index 705ea2c7..d024ee9f 100644
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--- a/dlls/ntoskrnl.exe/sync.c
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+++ b/dlls/ntoskrnl.exe/sync.c
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@@ -1031,3 +1031,22 @@ void WINAPI ExReleaseResourceLite( ERESOURCE *resource )
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{
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ExReleaseResourceForThreadLite( resource, (ERESOURCE_THREAD)KeGetCurrentThread() );
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}
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+
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+/***********************************************************************
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+ * ExGetExclusiveWaiterCount (NTOSKRNL.EXE.@)
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+ */
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+ULONG WINAPI ExGetExclusiveWaiterCount( ERESOURCE *resource )
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+{
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+ ULONG count;
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+ KIRQL irql;
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+
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+ TRACE("resource %p.\n", resource);
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+
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+ KeAcquireSpinLock( &resource->SpinLock, &irql );
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+
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+ count = resource->NumberOfExclusiveWaiters;
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+
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+ KeReleaseSpinLock( &resource->SpinLock, irql );
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+
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+ return count;
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+}
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diff --git a/include/ddk/wdm.h b/include/ddk/wdm.h
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index 69efdb7a..f7ced72a 100644
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--- a/include/ddk/wdm.h
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+++ b/include/ddk/wdm.h
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@@ -1524,6 +1524,7 @@ void WINAPI ExDeleteNPagedLookasideList(PNPAGED_LOOKASIDE_LIST);
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NTSTATUS WINAPI ExDeleteResourceLite(ERESOURCE*);
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void WINAPI ExFreePool(PVOID);
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void WINAPI ExFreePoolWithTag(PVOID,ULONG);
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+ULONG WINAPI ExGetExclusiveWaiterCount(ERESOURCE*);
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void WINAPI ExInitializeNPagedLookasideList(PNPAGED_LOOKASIDE_LIST,PALLOCATE_FUNCTION,PFREE_FUNCTION,ULONG,SIZE_T,ULONG,USHORT);
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NTSTATUS WINAPI ExInitializeResourceLite(ERESOURCE*);
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PSLIST_ENTRY WINAPI ExInterlockedPopEntrySList(PSLIST_HEADER,PKSPIN_LOCK);
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--
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2.20.1
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