Nikolay Sivov nsi...@codeweavers.com writes:
+DWORD NTAPI RtlRunOnceExecuteOnce(PRTL_RUN_ONCE initonce,
PRTL_RUN_ONCE_INIT_FN callback, void *parameter, void **ctxt)
+{
+#ifdef __linux__
+if (!use_futexes()) return FALSE;
+
+for (;;)
+{
+DWORD_PTR val = (DWORD_PTR)interlocked_cmpxchg_ptr( initonce-Ptr,
(void*)1, NULL );
+switch (val 0x3)
+{
+case 0:
+{
+DWORD ret = callback(initonce, parameter, ctxt);
+if (ret)
+{
+DWORD_PTR context = ctxt ? (DWORD_PTR)*ctxt : 0;
+context = (context ~0x3) | 0x2;
+interlocked_cmpxchg_ptr( initonce-Ptr, (void*)context,
(void*)1 );
+}
+else
+interlocked_cmpxchg_ptr( initonce-Ptr, NULL, (void*)1
);
+futex_wake( (int *)initonce-Ptr, 1 );
+return ret;
+}
+case 1:
+/* blocked by another thread */
+futex_wait( (int *)initonce-Ptr, 1, NULL );
+break;
+case 2:
+/* already initialized */
+return TRUE;
+}
+}
It's supposed to return an NTSTATUS, not a boolean. Also you have to
always return the context, and you should try to do a generic
implementation first.
--
Alexandre Julliard
julli...@winehq.org
