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bpo-40241: Add pycore_interp.h header (GH-19499)
Move PyInterpreterState and related functions to a new internal pycore_interp.h header file.
1 parent 1c4cbdf commit 0c13e1f

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Lines changed: 189 additions & 165 deletions

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‎Include/internal/pycore_interp.h‎

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#ifndef Py_INTERNAL_INTERP_H
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#define Py_INTERNAL_INTERP_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef Py_BUILD_CORE
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# error "this header requires Py_BUILD_CORE define"
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#endif
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#include "pycore_atomic.h" /* _Py_atomic_address */
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#include "pycore_gil.h" /* struct _gil_runtime_state */
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#include "pycore_pymem.h" /* struct _gc_runtime_state */
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#include "pycore_warnings.h" /* struct _warnings_runtime_state */
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/* ceval state */
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struct _pending_calls {
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PyThread_type_lock lock;
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/* Request for running pending calls. */
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_Py_atomic_int calls_to_do;
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/* Request for looking at the `async_exc` field of the current
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thread state.
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Guarded by the GIL. */
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int async_exc;
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#define NPENDINGCALLS 32
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struct {
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int (*func)(void *);
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void *arg;
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} calls[NPENDINGCALLS];
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int first;
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int last;
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};
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struct _ceval_state {
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/* Records whether tracing is on for any thread. Counts the number
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of threads for which tstate->c_tracefunc is non-NULL, so if the
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value is 0, we know we don't have to check this thread's
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c_tracefunc. This speeds up the if statement in
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_PyEval_EvalFrameDefault() after fast_next_opcode. */
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int tracing_possible;
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/* This single variable consolidates all requests to break out of
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the fast path in the eval loop. */
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_Py_atomic_int eval_breaker;
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struct _pending_calls pending;
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};
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/* interpreter state */
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#define _PY_NSMALLPOSINTS 257
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#define _PY_NSMALLNEGINTS 5
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// The PyInterpreterState typedef is in Include/pystate.h.
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struct _is {
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struct _is *next;
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struct _ts *tstate_head;
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/* Reference to the _PyRuntime global variable. This field exists
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to not have to pass runtime in addition to tstate to a function.
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Get runtime from tstate: tstate->interp->runtime. */
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struct pyruntimestate *runtime;
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int64_t id;
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int64_t id_refcount;
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int requires_idref;
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PyThread_type_lock id_mutex;
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int finalizing;
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struct _ceval_state ceval;
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struct _gc_runtime_state gc;
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PyObject *modules;
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PyObject *modules_by_index;
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PyObject *sysdict;
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PyObject *builtins;
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PyObject *importlib;
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/* Used in Modules/_threadmodule.c. */
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long num_threads;
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/* Support for runtime thread stack size tuning.
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A value of 0 means using the platform's default stack size
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or the size specified by the THREAD_STACK_SIZE macro. */
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/* Used in Python/thread.c. */
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size_t pythread_stacksize;
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PyObject *codec_search_path;
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PyObject *codec_search_cache;
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PyObject *codec_error_registry;
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int codecs_initialized;
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/* fs_codec.encoding is initialized to NULL.
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Later, it is set to a non-NULL string by _PyUnicode_InitEncodings(). */
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struct {
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char *encoding; /* Filesystem encoding (encoded to UTF-8) */
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int utf8; /* encoding=="utf-8"? */
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char *errors; /* Filesystem errors (encoded to UTF-8) */
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_Py_error_handler error_handler;
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} fs_codec;
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PyConfig config;
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#ifdef HAVE_DLOPEN
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int dlopenflags;
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#endif
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PyObject *dict; /* Stores per-interpreter state */
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PyObject *builtins_copy;
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PyObject *import_func;
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/* Initialized to PyEval_EvalFrameDefault(). */
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_PyFrameEvalFunction eval_frame;
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Py_ssize_t co_extra_user_count;
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freefunc co_extra_freefuncs[MAX_CO_EXTRA_USERS];
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#ifdef HAVE_FORK
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PyObject *before_forkers;
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PyObject *after_forkers_parent;
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PyObject *after_forkers_child;
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#endif
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/* AtExit module */
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void (*pyexitfunc)(PyObject *);
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PyObject *pyexitmodule;
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uint64_t tstate_next_unique_id;
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struct _warnings_runtime_state warnings;
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PyObject *audit_hooks;
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struct {
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struct {
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int level;
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int atbol;
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} listnode;
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} parser;
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#if _PY_NSMALLNEGINTS + _PY_NSMALLPOSINTS > 0
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/* Small integers are preallocated in this array so that they
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can be shared.
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The integers that are preallocated are those in the range
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-_PY_NSMALLNEGINTS (inclusive) to _PY_NSMALLPOSINTS (not inclusive).
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*/
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PyLongObject* small_ints[_PY_NSMALLNEGINTS + _PY_NSMALLPOSINTS];
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#endif
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};
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/* Used by _PyImport_Cleanup() */
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extern void _PyInterpreterState_ClearModules(PyInterpreterState *interp);
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extern PyStatus _PyInterpreterState_SetConfig(
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PyInterpreterState *interp,
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const PyConfig *config);
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/* cross-interpreter data registry */
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/* For now we use a global registry of shareable classes. An
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alternative would be to add a tp_* slot for a class's
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crossinterpdatafunc. It would be simpler and more efficient. */
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struct _xidregitem;
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struct _xidregitem {
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PyTypeObject *cls;
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crossinterpdatafunc getdata;
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struct _xidregitem *next;
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};
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PyAPI_FUNC(struct _is*) _PyInterpreterState_LookUpID(PY_INT64_T);
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PyAPI_FUNC(int) _PyInterpreterState_IDInitref(struct _is *);
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PyAPI_FUNC(void) _PyInterpreterState_IDIncref(struct _is *);
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PyAPI_FUNC(void) _PyInterpreterState_IDDecref(struct _is *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_INTERNAL_INTERP_H */
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‎Include/internal/pycore_pystate.h‎

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# error "this header requires Py_BUILD_CORE define"
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#endif
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#include "pycore_gil.h" /* struct _gil_runtime_state */
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#include "pycore_pymem.h" /* struct _gc_runtime_state */
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#include "pycore_warnings.h" /* struct _warnings_runtime_state */
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#include "pycore_interp.h" /* PyInterpreterState */
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#include "pycore_runtime.h" /* PyRuntimestate */
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/* ceval state */
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struct _pending_calls {
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PyThread_type_lock lock;
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/* Request for running pending calls. */
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_Py_atomic_int calls_to_do;
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/* Request for looking at the `async_exc` field of the current
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thread state.
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Guarded by the GIL. */
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int async_exc;
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#define NPENDINGCALLS 32
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struct {
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int (*func)(void *);
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void *arg;
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} calls[NPENDINGCALLS];
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int first;
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int last;
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};
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struct _ceval_state {
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/* Records whether tracing is on for any thread. Counts the number
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of threads for which tstate->c_tracefunc is non-NULL, so if the
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value is 0, we know we don't have to check this thread's
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c_tracefunc. This speeds up the if statement in
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_PyEval_EvalFrameDefault() after fast_next_opcode. */
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int tracing_possible;
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/* This single variable consolidates all requests to break out of
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the fast path in the eval loop. */
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_Py_atomic_int eval_breaker;
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struct _pending_calls pending;
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};
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/* interpreter state */
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#define _PY_NSMALLPOSINTS 257
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#define _PY_NSMALLNEGINTS 5
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// The PyInterpreterState typedef is in Include/pystate.h.
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struct _is {
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struct _is *next;
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struct _ts *tstate_head;
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/* Reference to the _PyRuntime global variable. This field exists
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to not have to pass runtime in addition to tstate to a function.
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Get runtime from tstate: tstate->interp->runtime. */
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struct pyruntimestate *runtime;
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int64_t id;
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int64_t id_refcount;
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int requires_idref;
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PyThread_type_lock id_mutex;
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int finalizing;
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struct _ceval_state ceval;
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struct _gc_runtime_state gc;
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PyObject *modules;
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PyObject *modules_by_index;
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PyObject *sysdict;
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PyObject *builtins;
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PyObject *importlib;
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/* Used in Modules/_threadmodule.c. */
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long num_threads;
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/* Support for runtime thread stack size tuning.
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A value of 0 means using the platform's default stack size
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or the size specified by the THREAD_STACK_SIZE macro. */
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/* Used in Python/thread.c. */
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size_t pythread_stacksize;
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PyObject *codec_search_path;
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PyObject *codec_search_cache;
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PyObject *codec_error_registry;
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int codecs_initialized;
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/* fs_codec.encoding is initialized to NULL.
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Later, it is set to a non-NULL string by _PyUnicode_InitEncodings(). */
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struct {
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char *encoding; /* Filesystem encoding (encoded to UTF-8) */
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int utf8; /* encoding=="utf-8"? */
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char *errors; /* Filesystem errors (encoded to UTF-8) */
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_Py_error_handler error_handler;
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} fs_codec;
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PyConfig config;
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#ifdef HAVE_DLOPEN
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int dlopenflags;
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#endif
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PyObject *dict; /* Stores per-interpreter state */
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PyObject *builtins_copy;
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PyObject *import_func;
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/* Initialized to PyEval_EvalFrameDefault(). */
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_PyFrameEvalFunction eval_frame;
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Py_ssize_t co_extra_user_count;
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freefunc co_extra_freefuncs[MAX_CO_EXTRA_USERS];
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#ifdef HAVE_FORK
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PyObject *before_forkers;
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PyObject *after_forkers_parent;
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PyObject *after_forkers_child;
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#endif
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/* AtExit module */
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void (*pyexitfunc)(PyObject *);
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PyObject *pyexitmodule;
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uint64_t tstate_next_unique_id;
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struct _warnings_runtime_state warnings;
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PyObject *audit_hooks;
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struct {
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struct {
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int level;
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int atbol;
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} listnode;
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} parser;
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#if _PY_NSMALLNEGINTS + _PY_NSMALLPOSINTS > 0
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/* Small integers are preallocated in this array so that they
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can be shared.
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The integers that are preallocated are those in the range
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-_PY_NSMALLNEGINTS (inclusive) to _PY_NSMALLPOSINTS (not inclusive).
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*/
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PyLongObject* small_ints[_PY_NSMALLNEGINTS + _PY_NSMALLPOSINTS];
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#endif
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};
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PyAPI_FUNC(struct _is*) _PyInterpreterState_LookUpID(PY_INT64_T);
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PyAPI_FUNC(int) _PyInterpreterState_IDInitref(struct _is *);
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PyAPI_FUNC(void) _PyInterpreterState_IDIncref(struct _is *);
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PyAPI_FUNC(void) _PyInterpreterState_IDDecref(struct _is *);
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/* cross-interpreter data registry */
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/* For now we use a global registry of shareable classes. An
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alternative would be to add a tp_* slot for a class's
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crossinterpdatafunc. It would be simpler and more efficient. */
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struct _xidregitem;
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struct _xidregitem {
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PyTypeObject *cls;
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crossinterpdatafunc getdata;
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struct _xidregitem *next;
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};
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/* Check if the current thread is the main thread.
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Use _Py_IsMainInterpreter() to check if it's the main interpreter. */
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static inline int
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PyAPI_FUNC(PyStatus) _PyInterpreterState_Enable(_PyRuntimeState *runtime);
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PyAPI_FUNC(void) _PyInterpreterState_DeleteExceptMain(_PyRuntimeState *runtime);
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/* Used by _PyImport_Cleanup() */
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extern void _PyInterpreterState_ClearModules(PyInterpreterState *interp);
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extern PyStatus _PyInterpreterState_SetConfig(
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PyInterpreterState *interp,
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const PyConfig *config);
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PyAPI_FUNC(void) _PyGILState_Reinit(_PyRuntimeState *runtime);
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‎Makefile.pre.in‎

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$(srcdir)/Include/internal/pycore_hamt.h \
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$(srcdir)/Include/internal/pycore_import.h \
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$(srcdir)/Include/internal/pycore_initconfig.h \
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$(srcdir)/Include/internal/pycore_interp.h \
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$(srcdir)/Include/internal/pycore_object.h \
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$(srcdir)/Include/internal/pycore_pathconfig.h \
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$(srcdir)/Include/internal/pycore_pyerrors.h \

‎PCbuild/pythoncore.vcxproj‎

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<ClInclude Include="..\Include\internal\pycore_hamt.h" />
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<ClInclude Include="..\Include\internal\pycore_import.h" />
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<ClInclude Include="..\Include\internal\pycore_initconfig.h" />
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<ClInclude Include="..\Include\internal\pycore_interp.h" />
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<ClInclude Include="..\Include\internal\pycore_object.h" />
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<ClInclude Include="..\Include\internal\pycore_pathconfig.h" />
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<ClInclude Include="..\Include\internal\pycore_pyerrors.h" />

‎PCbuild/pythoncore.vcxproj.filters‎

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<ClInclude Include="..\Include\internal\pycore_initconfig.h">
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<Filter>Include</Filter>
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</ClInclude>
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<ClInclude Include="..\Include\internal\pycore_interp.h">
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<Filter>Include</Filter>
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</ClInclude>
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<ClInclude Include="..\Include\internal\pycore_object.h">
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<Filter>Include</Filter>
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</ClInclude>

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