- Fixed warnings

- Fixed deadlock in xsi_sem_undo - RecordUndo
- Fixed issue in xsi_sem_undo: if the semaphore set does not exist
anymore, ignore the request but do remove the process from the sUndoList,
which wasn't previously done.
- free() in ClearUndos was called with interrupts disabled
- when a semaphore set ends to exist, remove all it's sem_undo request as it's ID
will be reused in the future.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26727 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/posix/xsi_semaphore.h

@@ -11,15 +11,7 @@
 #include <OS.h>
 
 #include <kernel.h>
-
-
-// TODO: move into a system/posix/xsi_semaphore_defs.h file to be shared with
-// xsi_sem.cpp in libroot!
-union semun {
-	int					val;
-	struct semid_ds		*buf;
-	unsigned short		*array;
-};
+#include <posix/xsi_semaphore_defs.h>
 
 
 __BEGIN_DECLS

headers/private/system/posix/xsi_semaphore_defs.h

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2008, Salvatore Benedetto, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef SYSTEM_XSI_SEM_H
+#define SYSTEM_XSI_SEM_H
+
+/*
+ * Shared union used by the semctl option argument.
+ * The user should declare it explicitly
+ */
+union semun {
+	int				val;
+	struct semid_ds	*buf;
+	unsigned short	*array;
+};
+
+#endif