ntdll: Implement RtlIsCriticalSectionLocked[ByThread].

dlls/ntdll/critsection.c

@@ -610,6 +610,43 @@ BOOL WINAPI RtlTryEnterCriticalSection( RTL_CRITICAL_SECTION *crit )
 
 
 /***********************************************************************
+ *           RtlIsCriticalSectionLocked   (NTDLL.@)
+ *
+ * Checks if the critical section is locked by any thread.
+ *
+ * PARAMS
+ *  crit [I/O] Critical section to check.
+ *
+ * RETURNS
+ *  Success: TRUE. The critical section is locked.
+ *  Failure: FALSE. The critical section is not locked.
+ */
+BOOL WINAPI RtlIsCriticalSectionLocked( RTL_CRITICAL_SECTION *crit )
+{
+    return crit->RecursionCount != 0;
+}
+
+
+/***********************************************************************
+ *           RtlIsCriticalSectionLockedByThread   (NTDLL.@)
+ *
+ * Checks if the critical section is locked by the current thread.
+ *
+ * PARAMS
+ *  crit [I/O] Critical section to check.
+ *
+ * RETURNS
+ *  Success: TRUE. The critical section is locked.
+ *  Failure: FALSE. The critical section is not locked.
+ */
+BOOL WINAPI RtlIsCriticalSectionLockedByThread( RTL_CRITICAL_SECTION *crit )
+{
+    return crit->OwningThread == ULongToHandle(GetCurrentThreadId()) &&
+           crit->RecursionCount;
+}
+
+
+/***********************************************************************
  *           RtlLeaveCriticalSection   (NTDLL.@)
  *
  * Leaves a critical section.

dlls/ntdll/ntdll.spec

@@ -719,6 +719,8 @@
 # @ stub RtlIpv6StringToAddressExW
 # @ stub RtlIpv6StringToAddressW
 @ stdcall RtlIsActivationContextActive(ptr)
+@ stdcall RtlIsCriticalSectionLocked(ptr)
+@ stdcall RtlIsCriticalSectionLockedByThread(ptr)
 @ stdcall RtlIsDosDeviceName_U(wstr)
 @ stub RtlIsGenericTableEmpty
 # @ stub RtlIsGenericTableEmptyAvl

dlls/ntdll/tests/rtl.c

@@ -2008,7 +2008,7 @@ static void test_RtlIsCriticalSectionLocked(void)
 
     if (!pRtlIsCriticalSectionLocked || !pRtlIsCriticalSectionLockedByThread)
     {
-        skip("skipping RtlIsCriticalSectionLocked tests, required functions not available\n");
+        win_skip("skipping RtlIsCriticalSectionLocked tests, required functions not available\n");
         return;
     }
 

include/winternl.h

@@ -2483,6 +2483,8 @@ NTSYSAPI NTSTATUS  WINAPI RtlInt64ToUnicodeString(ULONGLONG,ULONG,UNICODE_STRING
 NTSYSAPI NTSTATUS  WINAPI RtlIntegerToChar(ULONG,ULONG,ULONG,PCHAR);
 NTSYSAPI NTSTATUS  WINAPI RtlIntegerToUnicodeString(ULONG,ULONG,UNICODE_STRING *);
 NTSYSAPI BOOLEAN   WINAPI RtlIsActivationContextActive(HANDLE);
+NTSYSAPI BOOL      WINAPI RtlIsCriticalSectionLocked(RTL_CRITICAL_SECTION *);
+NTSYSAPI BOOL      WINAPI RtlIsCriticalSectionLockedByThread(RTL_CRITICAL_SECTION *);
 NTSYSAPI ULONG     WINAPI RtlIsDosDeviceName_U(PCWSTR);
 NTSYSAPI BOOLEAN   WINAPI RtlIsNameLegalDOS8Dot3(const UNICODE_STRING*,POEM_STRING,PBOOLEAN);
 NTSYSAPI BOOLEAN   WINAPI RtlIsTextUnicode(LPCVOID,INT,INT *);