[Python-checkins] cpython: Issue #13483: Use VirtualAlloc in obmalloc on Windows.
martin.v.loewis
python-checkins at python.org
Thu Jun 27 12:24:21 CEST 2013
http://hg.python.org/cpython/rev/44f455e6163d
changeset: 84352:44f455e6163d
user: Martin v. Löwis <martin at v.loewis.de>
date: Thu Jun 27 12:23:29 2013 +0200
summary:
Issue #13483: Use VirtualAlloc in obmalloc on Windows.
files:
Misc/NEWS | 2 ++
Objects/obmalloc.c | 14 ++++++++++++--
2 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,8 @@
Core and Builtins
-----------------
+- Issue #13483: Use VirtualAlloc in obmalloc on Windows.
+
- Issue #18184: PyUnicode_FromFormat() and PyUnicode_FromFormatV() now raise
OverflowError when an argument of %c format is out of range.
diff --git a/Objects/obmalloc.c b/Objects/obmalloc.c
--- a/Objects/obmalloc.c
+++ b/Objects/obmalloc.c
@@ -9,6 +9,10 @@
#endif
#endif
+#ifdef MS_WINDOWS
+#include <windows.h>
+#endif
+
#ifdef WITH_VALGRIND
#include <valgrind/valgrind.h>
@@ -598,7 +602,11 @@
arenaobj = unused_arena_objects;
unused_arena_objects = arenaobj->nextarena;
assert(arenaobj->address == 0);
-#ifdef ARENAS_USE_MMAP
+#ifdef MS_WINDOWS
+ address = (void*)VirtualAlloc(NULL, ARENA_SIZE,
+ MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
+ err = (address == NULL);
+#elif defined(ARENAS_USE_MMAP)
address = mmap(NULL, ARENA_SIZE, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
err = (address == MAP_FAILED);
@@ -1093,7 +1101,9 @@
unused_arena_objects = ao;
/* Free the entire arena. */
-#ifdef ARENAS_USE_MMAP
+#ifdef MS_WINDOWS
+ VirtualFree((void *)ao->address, 0, MEM_RELEASE);
+#elif defined(ARENAS_USE_MMAP)
munmap((void *)ao->address, ARENA_SIZE);
#else
free((void *)ao->address);
--
Repository URL: http://hg.python.org/cpython
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