--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Modules/_ctypes/malloc_closure.c	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,114 @@
+/*****************************************************************
+  This file should be kept compatible with Python 2.3, see PEP 291.
+ *****************************************************************/
+
+#include <Python.h>
+#include <ffi.h>
+#ifdef MS_WIN32
+#include <windows.h>
+#else
+#include <sys/mman.h>
+#include <unistd.h>
+# if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
+#  define MAP_ANONYMOUS MAP_ANON
+# endif
+#endif
+#include "ctypes.h"
+
+/* BLOCKSIZE can be adjusted.  Larger blocksize will take a larger memory
+   overhead, but allocate less blocks from the system.  It may be that some
+   systems have a limit of how many mmap'd blocks can be open.
+*/
+
+#define BLOCKSIZE _pagesize
+
+/* #define MALLOC_CLOSURE_DEBUG */ /* enable for some debugging output */
+
+/******************************************************************/
+
+typedef union _tagITEM {
+	ffi_closure closure;
+	union _tagITEM *next;
+} ITEM;
+
+static ITEM *free_list;
+int _pagesize;
+
+static void more_core(void)
+{
+	ITEM *item;
+	int count, i;
+
+/* determine the pagesize */
+#ifdef MS_WIN32
+	if (!_pagesize) {
+		SYSTEM_INFO systeminfo;
+		GetSystemInfo(&systeminfo);
+		_pagesize = systeminfo.dwPageSize;
+	}
+#else
+	if (!_pagesize) {
+#ifdef _SC_PAGESIZE
+		_pagesize = sysconf(_SC_PAGESIZE);
+#else
+		_pagesize = getpagesize();
+#endif
+	}
+#endif
+
+	/* calculate the number of nodes to allocate */
+	count = BLOCKSIZE / sizeof(ITEM);
+
+	/* allocate a memory block */
+#ifdef MS_WIN32
+	item = (ITEM *)VirtualAlloc(NULL,
+					       count * sizeof(ITEM),
+					       MEM_COMMIT,
+					       PAGE_EXECUTE_READWRITE);
+	if (item == NULL)
+		return;
+#else
+	item = (ITEM *)mmap(NULL,
+			    count * sizeof(ITEM),
+			    PROT_READ | PROT_WRITE | PROT_EXEC,
+			    MAP_PRIVATE | MAP_ANONYMOUS,
+			    -1,
+			    0);
+	if (item == (void *)MAP_FAILED)
+		return;
+#endif
+
+#ifdef MALLOC_CLOSURE_DEBUG
+	printf("block at %p allocated (%d bytes), %d ITEMs\n",
+	       item, count * sizeof(ITEM), count);
+#endif
+	/* put them into the free list */
+	for (i = 0; i < count; ++i) {
+		item->next = free_list;
+		free_list = item;
+		++item;
+	}
+}
+
+/******************************************************************/
+
+/* put the item back into the free list */
+void FreeClosure(void *p)
+{
+	ITEM *item = (ITEM *)p;
+	item->next = free_list;
+	free_list = item;
+}
+
+/* return one item from the free list, allocating more if needed */
+void *MallocClosure(void)
+{
+	ITEM *item;
+	if (!free_list)
+		more_core();
+	if (!free_list)
+		return NULL;
+	item = free_list;
+	free_list = item->next;
+	return item;
+}