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Diffstat (limited to 'Include/internal/pystate.h')
-rw-r--r-- | Include/internal/pystate.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/Include/internal/pystate.h b/Include/internal/pystate.h new file mode 100644 index 0000000..20c5946 --- /dev/null +++ b/Include/internal/pystate.h @@ -0,0 +1,92 @@ +#ifndef Py_INTERNAL_PYSTATE_H +#define Py_INTERNAL_PYSTATE_H +#ifdef __cplusplus +extern "C" { +#endif + +#include "pystate.h" +#include "pyatomic.h" +#include "pythread.h" + +#include "internal/mem.h" +#include "internal/ceval.h" +#include "internal/warnings.h" + + +/* GIL state */ + +struct _gilstate_runtime_state { + int check_enabled; + /* Assuming the current thread holds the GIL, this is the + PyThreadState for the current thread. */ + _Py_atomic_address tstate_current; + PyThreadFrameGetter getframe; + /* The single PyInterpreterState used by this process' + GILState implementation + */ + /* TODO: Given interp_main, it may be possible to kill this ref */ + PyInterpreterState *autoInterpreterState; + int autoTLSkey; +}; + +/* hook for PyEval_GetFrame(), requested for Psyco */ +#define _PyThreadState_GetFrame _PyRuntime.gilstate.getframe + +/* Issue #26558: Flag to disable PyGILState_Check(). + If set to non-zero, PyGILState_Check() always return 1. */ +#define _PyGILState_check_enabled _PyRuntime.gilstate.check_enabled + + +/* Full Python runtime state */ + +typedef struct pyruntimestate { + int initialized; + int core_initialized; + PyThreadState *finalizing; + + struct pyinterpreters { + PyThread_type_lock mutex; + PyInterpreterState *head; + PyInterpreterState *main; + /* _next_interp_id is an auto-numbered sequence of small + integers. It gets initialized in _PyInterpreterState_Init(), + which is called in Py_Initialize(), and used in + PyInterpreterState_New(). A negative interpreter ID + indicates an error occurred. The main interpreter will + always have an ID of 0. Overflow results in a RuntimeError. + If that becomes a problem later then we can adjust, e.g. by + using a Python int. */ + int64_t next_id; + } interpreters; + +#define NEXITFUNCS 32 + void (*exitfuncs[NEXITFUNCS])(void); + int nexitfuncs; + void (*pyexitfunc)(void); + + struct _pyobj_runtime_state obj; + struct _gc_runtime_state gc; + struct _pymem_runtime_state mem; + struct _warnings_runtime_state warnings; + struct _ceval_runtime_state ceval; + struct _gilstate_runtime_state gilstate; + + // XXX Consolidate globals found via the check-c-globals script. +} _PyRuntimeState; + +PyAPI_DATA(_PyRuntimeState) _PyRuntime; +PyAPI_FUNC(void) _PyRuntimeState_Init(_PyRuntimeState *); +PyAPI_FUNC(void) _PyRuntimeState_Fini(_PyRuntimeState *); + +#define _Py_CURRENTLY_FINALIZING(tstate) \ + (_PyRuntime.finalizing == tstate) + + +/* Other */ + +PyAPI_FUNC(void) _PyInterpreterState_Enable(_PyRuntimeState *); + +#ifdef __cplusplus +} +#endif +#endif /* !Py_INTERNAL_PYSTATE_H */ |