gh-110481: Implement biased reference counting (gh-110764)

14 files changed, 84 insertions, 0 deletions

diff --git a/Modules/_ctypes/_ctypes_test.c b/Modules/_ctypes/_ctypes_test.c
index df11c00..12d372f 100644
--- a/Modules/_ctypes/_ctypes_test.c
+++ b/Modules/_ctypes/_ctypes_test.c
@@ -1,5 +1,11 @@
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
+#ifndef Py_NOGIL
 // Need limited C API version 3.13 for Py_MOD_PER_INTERPRETER_GIL_SUPPORTED
 #define Py_LIMITED_API 0x030d0000
+#endif
 
 // gh-85283: On Windows, Py_LIMITED_API requires Py_BUILD_CORE to not attempt
 // linking the extension to python3.lib (which fails). Py_BUILD_CORE_MODULE is
diff --git a/Modules/_multiprocessing/posixshmem.c b/Modules/_multiprocessing/posixshmem.c
index c4d1138..dc3c59d 100644
--- a/Modules/_multiprocessing/posixshmem.c
+++ b/Modules/_multiprocessing/posixshmem.c
@@ -2,8 +2,12 @@
 posixshmem - A Python extension that provides shm_open() and shm_unlink()
 */
 
+#include "pyconfig.h"   // Py_NOGIL
+
+#ifndef Py_NOGIL
 // Need limited C API version 3.13 for Py_MOD_PER_INTERPRETER_GIL_SUPPORTED
 #define Py_LIMITED_API 0x030d0000
+#endif
 
 #include <Python.h>
 
diff --git a/Modules/_scproxy.c b/Modules/_scproxy.c
index 2f1b861..c8e120e 100644
--- a/Modules/_scproxy.c
+++ b/Modules/_scproxy.c
@@ -3,8 +3,14 @@
  * using the SystemConfiguration framework.
  */
 
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
+#ifndef Py_NOGIL
 // Need limited C API version 3.13 for Py_MOD_PER_INTERPRETER_GIL_SUPPORTED
 #define Py_LIMITED_API 0x030d0000
+#endif
 
 #include <Python.h>
 #include <SystemConfiguration/SystemConfiguration.h>
diff --git a/Modules/_stat.c b/Modules/_stat.c
index 402fbba..d003560 100644
--- a/Modules/_stat.c
+++ b/Modules/_stat.c
@@ -11,8 +11,14 @@
  *
  */
 
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
 // Need limited C API version 3.13 for PyModule_Add() on Windows
+#ifndef Py_NOGIL
 #define Py_LIMITED_API 0x030d0000
+#endif
 
 #include "Python.h"
 
diff --git a/Modules/_testcapi/heaptype_relative.c b/Modules/_testcapi/heaptype_relative.c
index 53dd01d..b58d26c 100644
--- a/Modules/_testcapi/heaptype_relative.c
+++ b/Modules/_testcapi/heaptype_relative.c
@@ -1,4 +1,11 @@
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
+#ifndef Py_NOGIL
 #define Py_LIMITED_API 0x030c0000 // 3.12
+#endif
+
 #include "parts.h"
 #include <stddef.h>               // max_align_t
 #include <string.h>               // memset
diff --git a/Modules/_testcapi/vectorcall_limited.c b/Modules/_testcapi/vectorcall_limited.c
index 3e81903..857cb30 100644
--- a/Modules/_testcapi/vectorcall_limited.c
+++ b/Modules/_testcapi/vectorcall_limited.c
@@ -1,6 +1,13 @@
 /* Test Vectorcall in the limited API */
 
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
+#ifndef Py_NOGIL
 #define Py_LIMITED_API 0x030c0000 // 3.12
+#endif
+
 #include "parts.h"
 #include "clinic/vectorcall_limited.c.h"
 
diff --git a/Modules/_testclinic_limited.c b/Modules/_testclinic_limited.c
index 4273383..63ebb52 100644
--- a/Modules/_testclinic_limited.c
+++ b/Modules/_testclinic_limited.c
@@ -4,8 +4,14 @@
 #undef Py_BUILD_CORE_MODULE
 #undef Py_BUILD_CORE_BUILTIN
 
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
 // For now, only limited C API 3.13 is supported
+#ifndef Py_NOGIL
 #define Py_LIMITED_API 0x030d0000
+#endif
 
 /* Always enable assertions */
 #undef NDEBUG
diff --git a/Modules/_testimportmultiple.c b/Modules/_testimportmultiple.c
index a13024d..99d48b6 100644
--- a/Modules/_testimportmultiple.c
+++ b/Modules/_testimportmultiple.c
@@ -4,7 +4,13 @@
  * foo, bar), only the first one is called the same as the compiled file.
  */
 
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
+#ifndef Py_NOGIL
 #define Py_LIMITED_API 0x03020000
+#endif
 
 #include <Python.h>
 
diff --git a/Modules/_uuidmodule.c b/Modules/_uuidmodule.c
index b35cccb..8bda1d6 100644
--- a/Modules/_uuidmodule.c
+++ b/Modules/_uuidmodule.c
@@ -3,8 +3,14 @@
  * DCE compatible Universally Unique Identifier library.
  */
 
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
+#ifndef Py_NOGIL
 // Need limited C API version 3.13 for Py_MOD_PER_INTERPRETER_GIL_SUPPORTED
 #define Py_LIMITED_API 0x030d0000
+#endif
 
 #include "Python.h"
 #if defined(HAVE_UUID_H)
diff --git a/Modules/errnomodule.c b/Modules/errnomodule.c
index e4fd3b4..5ac4d29 100644
--- a/Modules/errnomodule.c
+++ b/Modules/errnomodule.c
@@ -1,7 +1,13 @@
 /* Errno module */
 
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
+#ifndef Py_NOGIL
 // Need limited C API version 3.13 for Py_MOD_PER_INTERPRETER_GIL_SUPPORTED
 #define Py_LIMITED_API 0x030d0000
+#endif
 
 #include "Python.h"
 #include <errno.h>                // EPIPE
diff --git a/Modules/md5module.c b/Modules/md5module.c
index 9d412ba..ff7fc09 100644
--- a/Modules/md5module.c
+++ b/Modules/md5module.c
@@ -16,8 +16,14 @@
 
 /* MD5 objects */
 
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
+#ifndef Py_NOGIL
 // Need limited C API version 3.13 for Py_MOD_PER_INTERPRETER_GIL_SUPPORTED
 #define Py_LIMITED_API 0x030d0000
+#endif
 
 #include "Python.h"
 #include "hashlib.h"
diff --git a/Modules/resource.c b/Modules/resource.c
index c973008..eb9c2e2 100644
--- a/Modules/resource.c
+++ b/Modules/resource.c
@@ -1,5 +1,11 @@
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
+#ifndef Py_NOGIL
 // Need limited C API version 3.13 for Py_MOD_PER_INTERPRETER_GIL_SUPPORTED
 #define Py_LIMITED_API 0x030d0000
+#endif
 
 #include "Python.h"
 #include <errno.h>                // errno
diff --git a/Modules/xxlimited.c b/Modules/xxlimited.c
index df6e593..3dcf74a 100644
--- a/Modules/xxlimited.c
+++ b/Modules/xxlimited.c
@@ -62,8 +62,14 @@
           pass
    */
 
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
+#ifndef Py_NOGIL
 // Need limited C API version 3.13 for Py_MOD_PER_INTERPRETER_GIL_SUPPORTED
 #define Py_LIMITED_API 0x030d0000
+#endif
 
 #include "Python.h"
 #include <string.h>
diff --git a/Modules/xxlimited_35.c b/Modules/xxlimited_35.c
index 361c7e7..04673ea 100644
--- a/Modules/xxlimited_35.c
+++ b/Modules/xxlimited_35.c
@@ -5,7 +5,13 @@
  * See the xxlimited module for an extension module template.
  */
 
+#ifndef _MSC_VER
+#include "pyconfig.h"   // Py_NOGIL
+#endif
+
+#ifndef Py_NOGIL
 #define Py_LIMITED_API 0x03050000
+#endif
 
 #include "Python.h"