wine-staging/patches/ntoskrnl.exe-Resources/0011-ntoskrnl.exe-Implement-ExIsResourceAcquiredExclusive.patch
2019-03-12 09:07:36 +11:00

68 lines
2.5 KiB
Diff

From 29d57097b8a1915d1fdbd8822117c096bb9e8dae Mon Sep 17 00:00:00 2001
From: Zebediah Figura <z.figura12@gmail.com>
Date: Tue, 29 Jan 2019 21:50:37 -0600
Subject: [PATCH] ntoskrnl.exe: Implement ExIsResourceAcquiredExclusiveLite().
Signed-off-by: Zebediah Figura <z.figura12@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 51ba575..8892b7c 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
+++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
@@ -165,7 +165,7 @@
@ stub ExInterlockedPushEntryList
@ stdcall ExInterlockedRemoveHeadList(ptr ptr)
@ stub ExIsProcessorFeaturePresent
-@ stub ExIsResourceAcquiredExclusiveLite
+@ stdcall ExIsResourceAcquiredExclusiveLite(ptr)
@ stub ExIsResourceAcquiredSharedLite
@ stdcall ExLocalTimeToSystemTime(ptr ptr) RtlLocalTimeToSystemTime
@ stub ExNotifyCallback
diff --git a/dlls/ntoskrnl.exe/sync.c b/dlls/ntoskrnl.exe/sync.c
index c63d739..0f71902 100644
--- a/dlls/ntoskrnl.exe/sync.c
+++ b/dlls/ntoskrnl.exe/sync.c
@@ -1045,3 +1045,22 @@ ULONG WINAPI ExGetSharedWaiterCount( ERESOURCE *resource )
return count;
}
+
+/***********************************************************************
+ * ExIsResourceAcquiredExclusiveLite (NTOSKRNL.EXE.@)
+ */
+BOOLEAN WINAPI ExIsResourceAcquiredExclusiveLite( ERESOURCE *resource )
+{
+ BOOLEAN ret;
+ KIRQL irql;
+
+ TRACE("resource %p.\n", resource);
+
+ KeAcquireSpinLock( &resource->SpinLock, &irql );
+
+ ret = (resource->OwnerEntry.OwnerThread == (ERESOURCE_THREAD)KeGetCurrentThread());
+
+ KeReleaseSpinLock( &resource->SpinLock, irql );
+
+ return ret;
+}
diff --git a/include/ddk/wdm.h b/include/ddk/wdm.h
index 1c58ab9..80a82b0 100644
--- a/include/ddk/wdm.h
+++ b/include/ddk/wdm.h
@@ -1531,6 +1531,7 @@ NTSTATUS WINAPI ExInitializeResourceLite(ERESOURCE*);
PSLIST_ENTRY WINAPI ExInterlockedPopEntrySList(PSLIST_HEADER,PKSPIN_LOCK);
PSLIST_ENTRY WINAPI ExInterlockedPushEntrySList(PSLIST_HEADER,PSLIST_ENTRY,PKSPIN_LOCK);
LIST_ENTRY * WINAPI ExInterlockedRemoveHeadList(LIST_ENTRY*,KSPIN_LOCK*);
+BOOLEAN WINAPI ExIsResourceAcquiredExclusiveLite(ERESOURCE*);
void WINAPI ExReleaseFastMutexUnsafe(PFAST_MUTEX);
void WINAPI ExReleaseResourceForThreadLite(ERESOURCE*,ERESOURCE_THREAD);
ULONG WINAPI ExSetTimerResolution(ULONG,BOOLEAN);
--
1.9.1