gh-76785: Add SendChannel.send_buffer() (#110246)

(This is still a test module.)

4 files changed, 39 insertions, 2 deletions

diff --git a/Include/internal/pycore_ceval.h b/Include/internal/pycore_ceval.h
index d3ea3a8..312d67e 100644
--- a/Include/internal/pycore_ceval.h
+++ b/Include/internal/pycore_ceval.h
@@ -41,12 +41,26 @@ extern void _PyEval_InitState(PyInterpreterState *, PyThread_type_lock);
 extern void _PyEval_FiniState(struct _ceval_state *ceval);
 extern void _PyEval_SignalReceived(PyInterpreterState *interp);
 
+// bitwise flags:
+#define _Py_PENDING_MAINTHREADONLY 1
+#define _Py_PENDING_RAWFREE 2
+
 // Export for '_testinternalcapi' shared extension
 PyAPI_FUNC(int) _PyEval_AddPendingCall(
     PyInterpreterState *interp,
     _Py_pending_call_func func,
     void *arg,
-    int mainthreadonly);
+    int flags);
+
+typedef int (*_Py_simple_func)(void *);
+extern int _Py_CallInInterpreter(
+    PyInterpreterState *interp,
+    _Py_simple_func func,
+    void *arg);
+extern int _Py_CallInInterpreterAndRawFree(
+    PyInterpreterState *interp,
+    _Py_simple_func func,
+    void *arg);
 
 extern void _PyEval_SignalAsyncExc(PyInterpreterState *interp);
 #ifdef HAVE_FORK
diff --git a/Include/internal/pycore_ceval_state.h b/Include/internal/pycore_ceval_state.h
index 47971fb..1717ec4 100644
--- a/Include/internal/pycore_ceval_state.h
+++ b/Include/internal/pycore_ceval_state.h
@@ -22,6 +22,7 @@ struct _pending_calls {
     struct _pending_call {
         _Py_pending_call_func func;
         void *arg;
+        int flags;
     } calls[NPENDINGCALLS];
     int first;
     int last;
diff --git a/Include/internal/pycore_interp.h b/Include/internal/pycore_interp.h
index 523dfdc..0beddbb 100644
--- a/Include/internal/pycore_interp.h
+++ b/Include/internal/pycore_interp.h
@@ -267,7 +267,8 @@ _PyInterpreterState_SetFinalizing(PyInterpreterState *interp, PyThreadState *tst
 }
 
 
-extern PyInterpreterState* _PyInterpreterState_LookUpID(int64_t);
+// Export for the _xxinterpchannels module.
+PyAPI_FUNC(PyInterpreterState *) _PyInterpreterState_LookUpID(int64_t);
 
 extern int _PyInterpreterState_IDInitref(PyInterpreterState *);
 extern int _PyInterpreterState_IDIncref(PyInterpreterState *);
diff --git a/Include/internal/pycore_pybuffer.h b/Include/internal/pycore_pybuffer.h
new file mode 100644
index 0000000..3cbc290
--- /dev/null
+++ b/Include/internal/pycore_pybuffer.h
@@ -0,0 +1,21 @@
+#ifndef Py_INTERNAL_PYBUFFER_H
+#define Py_INTERNAL_PYBUFFER_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef Py_BUILD_CORE
+#  error "this header requires Py_BUILD_CORE define"
+#endif
+
+
+// Exported for the _xxinterpchannels module.
+PyAPI_FUNC(int) _PyBuffer_ReleaseInInterpreter(
+        PyInterpreterState *interp, Py_buffer *view);
+PyAPI_FUNC(int) _PyBuffer_ReleaseInInterpreterAndRawFree(
+        PyInterpreterState *interp, Py_buffer *view);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_INTERNAL_PYBUFFER_H */