Updates to work with greenlet 1.0a1

.travis.yml

@@ -184,7 +184,7 @@ jobs:
         #   UnicodeEncodeError: 'ascii' codec can't encode character u'\u2588' in position 6: ordinal not in range(128)
         # when downloading files. This started sometime in mid 2020. It's from
         # pip's vendored progress.bar class.
-        - &build-gevent-deps pip install -U -q setuptools wheel twine && pip install -q -U 'faulthandler; python_version == "2.7" and platform_python_implementation == "CPython"' 'cffi;platform_python_implementation=="CPython"' 'cython>=3.0a5' 'greenlet;platform_python_implementation=="CPython"'
+        - &build-gevent-deps pip install -U -q setuptools wheel twine && pip install -q -U 'faulthandler; python_version == "2.7" and platform_python_implementation == "CPython"' 'cffi;platform_python_implementation=="CPython"' 'cython>=3.0a5' 'greenlet>=1.0a1;platform_python_implementation=="CPython"'
         # Next, build the wheel *in place*. This helps ccache, and also lets us cache the configure
         # output (pip install uses a random temporary directory, making this difficult)
         - python setup.py bdist_wheel

appveyor.yml

@@ -179,10 +179,11 @@ build_script:
   # Try to get some things that don't wind up in the pip cache as
   # built wheels if they're built during an isolated build.
   - "%CMD_IN_ENV% %PYEXE% -m pip install --pre -U wheel cython setuptools cffi"
-  - if not "%GWHEEL_ONLY%"=="true" %PYEXE% -m pip install -U -e .[test]
+  - if not "%GWHEEL_ONLY%"=="true" %PYEXE% -m pip install --pre -U -e .[test]
 
 test_script:
   # Run the project tests
+  - if not "%GWHEEL_ONLY%"=="true" %PYEXE% -c "import greenlet; print(greenlet, greenlet.__version__)"
   - if not "%GWHEEL_ONLY%"=="true" %PYEXE% -c "import gevent.core; print(gevent.core.loop)"
   - if not "%GWHEEL_ONLY%"=="true" %PYEXE% -c "import gevent; print(gevent.config.settings['resolver'].get_options())"
   - if not "%GWHEEL_ONLY%"=="true" %PYEXE% -c "from gevent._compat import get_clock_info; print(get_clock_info('perf_counter'))"

deps/greenlet/greenlet.h

-/* vim:set noet ts=8 sw=8 : */
+/* -*- indent-tabs-mode: nil; tab-width: 4; -*- */
 
 /* Greenlet object interface */
 
@@ -11,19 +11,8 @@
 extern "C" {
 #endif
 
-#define GREENLET_VERSION "0.4.17"
-
-#if PY_VERSION_HEX >= 0x030700A3
-#  define GREENLET_USE_EXC_INFO
-#endif
-
-#ifndef GREENLET_USE_CONTEXT_VARS
-#ifdef Py_CONTEXT_H
-#define GREENLET_USE_CONTEXT_VARS 1
-#else
-#define GREENLET_USE_CONTEXT_VARS 0
-#endif
-#endif
+/* This is deprecated and undocumented. It does not change. */
+#define GREENLET_VERSION "1.0.0"
 
 typedef struct _greenlet {
     PyObject_HEAD
@@ -37,7 +26,7 @@ typedef struct _greenlet {
     struct _frame* top_frame;
     int recursion_depth;
     PyObject* weakreflist;
-#ifdef GREENLET_USE_EXC_INFO
+#if PY_VERSION_HEX >= 0x030700A3
     _PyErr_StackItem* exc_info;
     _PyErr_StackItem exc_state;
 #else
@@ -46,21 +35,17 @@ typedef struct _greenlet {
     PyObject* exc_traceback;
 #endif
     PyObject* dict;
-#if GREENLET_USE_CONTEXT_VARS
+#if PY_VERSION_HEX >= 0x030700A3
     PyObject* context;
 #endif
 } PyGreenlet;
 
 #define PyGreenlet_Check(op) PyObject_TypeCheck(op, &PyGreenlet_Type)
-#define PyGreenlet_MAIN(op)       (((PyGreenlet*)(op))->stack_stop == (char*) -1)
+#define PyGreenlet_MAIN(op) (((PyGreenlet*)(op))->stack_stop == (char*)-1)
 #define PyGreenlet_STARTED(op) (((PyGreenlet*)(op))->stack_stop != NULL)
 #define PyGreenlet_ACTIVE(op) (((PyGreenlet*)(op))->stack_start != NULL)
 #define PyGreenlet_GET_PARENT(op) (((PyGreenlet*)(op))->parent)
 
-#if (PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION >= 7) || (PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION >= 1) || PY_MAJOR_VERSION > 3
-#define GREENLET_USE_PYCAPSULE
-#endif
-
 /* C API functions */
 
 /* Total number of symbols that are exported */
@@ -78,23 +63,24 @@ typedef struct _greenlet {
 
 #ifndef GREENLET_MODULE
 /* This section is used by modules that uses the greenlet C API */
-static void **_PyGreenlet_API = NULL;
+static void** _PyGreenlet_API = NULL;
 
-#define PyGreenlet_Type (*(PyTypeObject *) _PyGreenlet_API[PyGreenlet_Type_NUM])
+#    define PyGreenlet_Type \
+        (*(PyTypeObject*)_PyGreenlet_API[PyGreenlet_Type_NUM])
 
-#define PyExc_GreenletError \
-	((PyObject *) _PyGreenlet_API[PyExc_GreenletError_NUM])
+#    define PyExc_GreenletError \
+        ((PyObject*)_PyGreenlet_API[PyExc_GreenletError_NUM])
 
-#define PyExc_GreenletExit \
-	((PyObject *) _PyGreenlet_API[PyExc_GreenletExit_NUM])
+#    define PyExc_GreenletExit \
+        ((PyObject*)_PyGreenlet_API[PyExc_GreenletExit_NUM])
 
 /*
  * PyGreenlet_New(PyObject *args)
  *
  * greenlet.greenlet(run, parent=None)
  */
-#define PyGreenlet_New \
-	(* (PyGreenlet * (*)(PyObject *run, PyGreenlet *parent)) \
+#    define PyGreenlet_New                                        \
+        (*(PyGreenlet * (*)(PyObject * run, PyGreenlet * parent)) \
              _PyGreenlet_API[PyGreenlet_New_NUM])
 
 /*
@@ -102,8 +88,8 @@ static void **_PyGreenlet_API = NULL;
  *
  * greenlet.getcurrent()
  */
-#define PyGreenlet_GetCurrent \
-	(* (PyGreenlet * (*)(void)) _PyGreenlet_API[PyGreenlet_GetCurrent_NUM])
+#    define PyGreenlet_GetCurrent \
+        (*(PyGreenlet * (*)(void)) _PyGreenlet_API[PyGreenlet_GetCurrent_NUM])
 
 /*
  * PyGreenlet_Throw(
@@ -114,9 +100,11 @@ static void **_PyGreenlet_API = NULL;
  *
  * g.throw(...)
  */
-#define PyGreenlet_Throw \
-	(* (PyObject * (*) \
-	    (PyGreenlet *self, PyObject *typ, PyObject *val, PyObject *tb)) \
+#    define PyGreenlet_Throw                 \
+        (*(PyObject * (*)(PyGreenlet * self, \
+                          PyObject * typ,    \
+                          PyObject * val,    \
+                          PyObject * tb))    \
              _PyGreenlet_API[PyGreenlet_Throw_NUM])
 
 /*
@@ -124,8 +112,9 @@ static void **_PyGreenlet_API = NULL;
  *
  * g.switch(*args, **kwargs)
  */
-#define PyGreenlet_Switch \
-	(* (PyObject * (*)(PyGreenlet *greenlet, PyObject *args, PyObject *kwargs)) \
+#    define PyGreenlet_Switch                                              \
+        (*(PyObject *                                                      \
+           (*)(PyGreenlet * greenlet, PyObject * args, PyObject * kwargs)) \
              _PyGreenlet_API[PyGreenlet_Switch_NUM])
 
 /*
@@ -133,32 +122,18 @@ static void **_PyGreenlet_API = NULL;
  *
  * g.parent = new_parent
  */
-#define PyGreenlet_SetParent \
-	(* (int (*)(PyGreenlet *greenlet, PyGreenlet *nparent)) \
+#    define PyGreenlet_SetParent                                 \
+        (*(int (*)(PyGreenlet * greenlet, PyGreenlet * nparent)) \
              _PyGreenlet_API[PyGreenlet_SetParent_NUM])
 
 /* Macro that imports greenlet and initializes C API */
-#ifdef GREENLET_USE_PYCAPSULE
-#define PyGreenlet_Import() \
-{ \
+/* NOTE: This has actually moved to ``greenlet._greenlet._C_API``, but we
+   keep the older definition to be sure older code that might have a copy of
+   the header still works. */
+#    define PyGreenlet_Import()                                               \
+        {                                                                     \
             _PyGreenlet_API = (void**)PyCapsule_Import("greenlet._C_API", 0); \
-}
-#else
-#define PyGreenlet_Import() \
-{ \
-	PyObject *module = PyImport_ImportModule("greenlet"); \
-	if (module != NULL) { \
-		PyObject *c_api_object = PyObject_GetAttrString( \
-			module, "_C_API"); \
-		if (c_api_object != NULL && PyCObject_Check(c_api_object)) { \
-			_PyGreenlet_API = \
-				(void **) PyCObject_AsVoidPtr(c_api_object); \
-			Py_DECREF(c_api_object); \
-		} \
-		Py_DECREF(module); \
-	} \
-}
-#endif
+        }
 
 #endif /* GREENLET_MODULE */
 

pyproject.toml

@@ -26,7 +26,7 @@ requires = [
      # Python 3.7 requires at least 0.4.14, which is ABI incompatible with earlier
      # releases. Python 3.9 and 3.10 require 0.4.16;
      # 0.4.17 is ABI incompatible with earlier releases.
-     "greenlet >= 0.4.17 ; platform_python_implementation == 'CPython'",
+     "greenlet >= 0.4.17, < 2.0 ; platform_python_implementation == 'CPython'",
 ]
 
 [tool.towncrier]

setup.py

@@ -192,8 +192,10 @@ greenlet_requires = [
     # We need to watch our greenlet version fairly carefully,
     # since we compile cython code that extends the greenlet object.
     # Binary compatibility would break if the greenlet struct changes.
-    # (Which it did in 0.4.14 for Python 3.7)
-    'greenlet >= 0.4.17; platform_python_implementation=="CPython"',
+    # (Which it did in 0.4.14 for Python 3.7 and again in 0.4.17; with
+    # the release of 1.0a1 it began promising ABI stability with SemVer
+    # so we can add an upper bound)
+    'greenlet >= 0.4.17, < 2.0; platform_python_implementation=="CPython"',
 ]
 
 # Note that we don't add cffi to install_requires, it's

src/gevent/tests/test__util.py

@@ -148,6 +148,10 @@ class TestTree(greentest.TestCase):
         value = value.replace('ref=-1', 'ref=0')
         value = value.replace("type.current_tree", 'GreenletTree.current_tree')
         value = value.replace('gevent.tests.__main__.MyLocal', '__main__.MyLocal')
+        # The repr in CPython greenlet 1.0a1 added extra info
+        value = value.replace('(otid=X) ', '')
+        value = value.replace(' dead>', '>')
+        value = value.replace(' current active started main>', '>')
         return value
 
     @greentest.ignores_leakcheck