[KERNEL32_VISTA][NTDLL_VISTA][RTL_VISTA] Move Vista Rtl functions from kernel32_vista and ntdll_vista to rtl_vista (#3149)

* Move RtlRunOnce functions from kernel32_vista to rtl_vista and export them from ntdll_vista
* Move condvar.c and srw.c from ntdll_vista to rtl_vista
* Move ntdll_vista build script to a subfolder of ntdll

The RtlRunOnce functions are taken from wine, completely unmodified.
The code that was in kernel32_vista had change that used a global keyed_event handle, but was never initialized, so we were still passing NULL thus using the global ExpCritSecOutOfMemoryEvent.

sdk/lib/rtl/runonce.c

@@ -0,0 +1,121 @@
+
+/* Taken from Wine ntdll/sync.c */
+
+#include "rtl_vista.h"
+#include <wine/config.h>
+#include <wine/port.h>
+
+/******************************************************************
+ *              RtlRunOnceInitialize (NTDLL.@)
+ */
+void WINAPI RtlRunOnceInitialize( RTL_RUN_ONCE *once )
+{
+    once->Ptr = NULL;
+}
+
+/******************************************************************
+ *              RtlRunOnceBeginInitialize (NTDLL.@)
+ */
+DWORD WINAPI RtlRunOnceBeginInitialize( RTL_RUN_ONCE *once, ULONG flags, void **context )
+{
+    if (flags & RTL_RUN_ONCE_CHECK_ONLY)
+    {
+        ULONG_PTR val = (ULONG_PTR)once->Ptr;
+
+        if (flags & RTL_RUN_ONCE_ASYNC) return STATUS_INVALID_PARAMETER;
+        if ((val & 3) != 2) return STATUS_UNSUCCESSFUL;
+        if (context) *context = (void *)(val & ~3);
+        return STATUS_SUCCESS;
+    }
+
+    for (;;)
+    {
+        ULONG_PTR next, val = (ULONG_PTR)once->Ptr;
+
+        switch (val & 3)
+        {
+        case 0:  /* first time */
+            if (!interlocked_cmpxchg_ptr( &once->Ptr,
+                                          (flags & RTL_RUN_ONCE_ASYNC) ? (void *)3 : (void *)1, 0 ))
+                return STATUS_PENDING;
+            break;
+
+        case 1:  /* in progress, wait */
+            if (flags & RTL_RUN_ONCE_ASYNC) return STATUS_INVALID_PARAMETER;
+            next = val & ~3;
+            if (interlocked_cmpxchg_ptr( &once->Ptr, (void *)((ULONG_PTR)&next | 1),
+                                         (void *)val ) == (void *)val)
+                NtWaitForKeyedEvent( 0, &next, FALSE, NULL );
+            break;
+
+        case 2:  /* done */
+            if (context) *context = (void *)(val & ~3);
+            return STATUS_SUCCESS;
+
+        case 3:  /* in progress, async */
+            if (!(flags & RTL_RUN_ONCE_ASYNC)) return STATUS_INVALID_PARAMETER;
+            return STATUS_PENDING;
+        }
+    }
+}
+
+/******************************************************************
+ *              RtlRunOnceComplete (NTDLL.@)
+ */
+DWORD WINAPI RtlRunOnceComplete( RTL_RUN_ONCE *once, ULONG flags, void *context )
+{
+    if ((ULONG_PTR)context & 3) return STATUS_INVALID_PARAMETER;
+
+    if (flags & RTL_RUN_ONCE_INIT_FAILED)
+    {
+        if (context) return STATUS_INVALID_PARAMETER;
+        if (flags & RTL_RUN_ONCE_ASYNC) return STATUS_INVALID_PARAMETER;
+    }
+    else context = (void *)((ULONG_PTR)context | 2);
+
+    for (;;)
+    {
+        ULONG_PTR val = (ULONG_PTR)once->Ptr;
+
+        switch (val & 3)
+        {
+        case 1:  /* in progress */
+            if (interlocked_cmpxchg_ptr( &once->Ptr, context, (void *)val ) != (void *)val) break;
+            val &= ~3;
+            while (val)
+            {
+                ULONG_PTR next = *(ULONG_PTR *)val;
+                NtReleaseKeyedEvent( 0, (void *)val, FALSE, NULL );
+                val = next;
+            }
+            return STATUS_SUCCESS;
+
+        case 3:  /* in progress, async */
+            if (!(flags & RTL_RUN_ONCE_ASYNC)) return STATUS_INVALID_PARAMETER;
+            if (interlocked_cmpxchg_ptr( &once->Ptr, context, (void *)val ) != (void *)val) break;
+            return STATUS_SUCCESS;
+
+        default:
+            return STATUS_UNSUCCESSFUL;
+        }
+    }
+}
+
+/******************************************************************
+ *              RtlRunOnceExecuteOnce (NTDLL.@)
+ */
+DWORD WINAPI RtlRunOnceExecuteOnce( RTL_RUN_ONCE *once, PRTL_RUN_ONCE_INIT_FN func,
+                                    void *param, void **context )
+{
+    DWORD ret = RtlRunOnceBeginInitialize( once, 0, context );
+
+    if (ret != STATUS_PENDING) return ret;
+
+    if (!func( once, param, context ))
+    {
+        RtlRunOnceComplete( once, RTL_RUN_ONCE_INIT_FAILED, NULL );
+        return STATUS_UNSUCCESSFUL;
+    }
+
+    return RtlRunOnceComplete( once, 0, context ? *context : NULL );
+}