bpo-36710: Add 'ceval' local variable to ceval.c (GH-12934)

Add "struct _ceval_runtime_state *ceval = &_PyRuntime.ceval;" local
variables to function to better highlight the dependency on the
global variable _PyRuntime and to point directly to _PyRuntime.ceval
field rather than on the larger _PyRuntime.

Changes:

* Add _PyRuntimeState_GetThreadState(runtime) macro.
* Add _PyEval_AddPendingCall(ceval, ...) and
  _PyThreadState_Swap(gilstate, ...) functions.
* _PyThreadState_GET() macro now calls
  _PyRuntimeState_GetThreadState() using &_PyRuntime.
* Add 'ceval' parameter to COMPUTE_EVAL_BREAKER(),
  SIGNAL_PENDING_SIGNALS(), _PyEval_SignalAsyncExc(),
  _PyEval_SignalReceived() and _PyEval_FiniThreads() macros and
  functions.
* Add 'tstate' parameter to call_function(), do_call_core() and
  do_raise().
* Add 'runtime' parameter to _Py_CURRENTLY_FINALIZING(),
  _Py_FinishPendingCalls() and _PyThreadState_DeleteExcept()
  macros and functions.
* Declare 'runtime', 'tstate', 'ceval' and 'eval_breaker' variables
  as constant.
This commit is contained in:
Victor Stinner 2019-05-10 23:39:09 +02:00 committed by GitHub
parent f22cc69b01
commit 09532feeec
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GPG key ID: 4AEE18F83AFDEB23
8 changed files with 370 additions and 320 deletions

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@ -4,8 +4,9 @@
#include "Python-ast.h"
#undef Yield /* undefine macro conflicting with <winbase.h> */
#include "pycore_coreconfig.h"
#include "pycore_ceval.h"
#include "pycore_context.h"
#include "pycore_coreconfig.h"
#include "pycore_fileutils.h"
#include "pycore_hamt.h"
#include "pycore_pathconfig.h"
@ -527,7 +528,7 @@ pycore_create_interpreter(_PyRuntimeState *runtime,
another running thread (see issue #9901).
Instead we destroy the previously created GIL here, which ensures
that we can call Py_Initialize / Py_FinalizeEx multiple times. */
_PyEval_FiniThreads();
_PyEval_FiniThreads(&runtime->ceval);
/* Auto-thread-state API */
_PyGILState_Init(runtime, interp, tstate);
@ -1135,10 +1136,10 @@ Py_FinalizeEx(void)
wait_for_thread_shutdown();
// Make any remaining pending calls.
_Py_FinishPendingCalls();
_Py_FinishPendingCalls(runtime);
/* Get current thread state and interpreter pointer */
PyThreadState *tstate = _PyThreadState_GET();
PyThreadState *tstate = _PyRuntimeState_GetThreadState(runtime);
PyInterpreterState *interp = tstate->interp;
/* The interpreter is still entirely intact at this point, and the