--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/cstdlib/LPOSIX/ATEXIT.C	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,108 @@
+/* ATEXIT.C
+ * 
+ * Portions Copyright (c) 1990-2006 Nokia Corporation and/or its subsidiary(-ies).
+ * All rights reserved.
+ */
+
+/*
+ * Copyright (c) 1990 Regents of the University of California.
+ * All rights reserved.
+ *
+ * %sccs.include.redist.c%
+ */
+
+/*
+FUNCTION
+<<atexit>>---request execution of functions at program exit
+
+INDEX
+	atexit
+
+ANSI_SYNOPSIS
+	#include <stdlib.h>
+	int atexit(void (*<[function]>)(void);
+
+TRAD_SYNOPSIS
+	#include <stdlib.h>
+	int atexit((<[function]>)
+	void (*<[function]>)();
+
+DESCRIPTION
+You can use <<atexit>> to enroll functions in a list of functions that
+will be called when your program terminates normally.  The argument is
+a pointer to a user-defined function (which must not require arguments and
+must not return a result).
+
+The functions are kept in a LIFO stack; that is, the last function
+enrolled by <<atexit>> will be the first to execute when your program
+exits.
+
+There is no built-in limit to the number of functions you can enroll
+in this list; however, after every group of 32 functions is enrolled,
+<<atexit>> will call <<malloc>> to get space for the next part of the
+list.   The initial list of 32 functions is statically allocated, so
+you can always count on at least that many slots available.
+
+RETURNS
+<<atexit>> returns <<0>> if it succeeds in enrolling your function,
+<<-1>> if it fails (possible only if no space was available for
+<<malloc>> to extend the list of functions or the library globals could not
+be allocated).
+
+PORTABILITY
+<<atexit>> is required by the ANSI standard, which also specifies that
+implementations must support enrolling at least 32 functions.
+
+Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
+<<lseek>>, <<read>>, <<sbrk>>, <<write>>.
+*/
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <reent.h>
+
+/*
+ * Register a function to be performed at exit.
+ * NB. MSVC 5.0 has a built-in prototype for atexit, so we have to use a #define
+ * to map the name atexit to _epoc32_atexit
+ */
+
+/*
+@return On Success, returns 0.
+		On Failure, returns -1.
+*/
+
+EXPORT_C int
+_epoc32_atexit (void (*fn)(void))
+{
+  register struct _atexit *p;
+  struct _reent *rp = _REENT2;
+  if (!rp)
+	return -1; // Memory for library globals is not allocated (errno not set). 
+ 
+  if ((p = rp->_atexit) == NULL)
+    rp->_atexit = p = &rp->_atexit0;
+  if (p->_ind >= _ATEXIT_SIZE)
+    {
+      if ((p = (struct _atexit *) malloc (sizeof *p)) == NULL)
+		return -1;
+      p->_ind = 0;
+      p->_next = rp->_atexit;
+      rp->_atexit = p;
+    }
+  p->_fns[p->_ind++] = fn;
+  return 0;
+}
+
+EXPORT_C void 
+_atexit_processing_r (struct _reent *rp)
+{
+  register struct _atexit *p;
+  register int n;
+
+  for (p = rp->_atexit; p; p = p->_next)
+    for (n = p->_ind; --n >= 0;)
+      (*p->_fns[n]) ();
+  if (rp->__cleanup)
+    (*rp->__cleanup) (rp);
+}