| Eric Snow | 2ebc5ce | 2017-09-07 23:51:28 -0600 | [diff] [blame] | 1 | #ifndef Py_INTERNAL_PYSTATE_H |
| 2 | #define Py_INTERNAL_PYSTATE_H |
| 3 | #ifdef __cplusplus |
| 4 | extern "C" { |
| 5 | #endif |
| 6 | |
| 7 | #include "pystate.h" |
| 8 | #include "pyatomic.h" |
| 9 | #include "pythread.h" |
| 10 | |
| 11 | #include "internal/mem.h" |
| 12 | #include "internal/ceval.h" |
| 13 | #include "internal/warnings.h" |
| 14 | |
| 15 | |
| 16 | /* GIL state */ |
| 17 | |
| 18 | struct _gilstate_runtime_state { |
| 19 | int check_enabled; |
| 20 | /* Assuming the current thread holds the GIL, this is the |
| 21 | PyThreadState for the current thread. */ |
| 22 | _Py_atomic_address tstate_current; |
| 23 | PyThreadFrameGetter getframe; |
| 24 | /* The single PyInterpreterState used by this process' |
| 25 | GILState implementation |
| 26 | */ |
| 27 | /* TODO: Given interp_main, it may be possible to kill this ref */ |
| 28 | PyInterpreterState *autoInterpreterState; |
| 29 | int autoTLSkey; |
| 30 | }; |
| 31 | |
| 32 | /* hook for PyEval_GetFrame(), requested for Psyco */ |
| 33 | #define _PyThreadState_GetFrame _PyRuntime.gilstate.getframe |
| 34 | |
| 35 | /* Issue #26558: Flag to disable PyGILState_Check(). |
| 36 | If set to non-zero, PyGILState_Check() always return 1. */ |
| 37 | #define _PyGILState_check_enabled _PyRuntime.gilstate.check_enabled |
| 38 | |
| 39 | |
| 40 | /* Full Python runtime state */ |
| 41 | |
| 42 | typedef struct pyruntimestate { |
| 43 | int initialized; |
| 44 | int core_initialized; |
| 45 | PyThreadState *finalizing; |
| 46 | |
| 47 | struct pyinterpreters { |
| 48 | PyThread_type_lock mutex; |
| 49 | PyInterpreterState *head; |
| 50 | PyInterpreterState *main; |
| 51 | /* _next_interp_id is an auto-numbered sequence of small |
| 52 | integers. It gets initialized in _PyInterpreterState_Init(), |
| 53 | which is called in Py_Initialize(), and used in |
| 54 | PyInterpreterState_New(). A negative interpreter ID |
| 55 | indicates an error occurred. The main interpreter will |
| 56 | always have an ID of 0. Overflow results in a RuntimeError. |
| 57 | If that becomes a problem later then we can adjust, e.g. by |
| 58 | using a Python int. */ |
| 59 | int64_t next_id; |
| 60 | } interpreters; |
| 61 | |
| 62 | #define NEXITFUNCS 32 |
| 63 | void (*exitfuncs[NEXITFUNCS])(void); |
| 64 | int nexitfuncs; |
| 65 | void (*pyexitfunc)(void); |
| 66 | |
| 67 | struct _pyobj_runtime_state obj; |
| 68 | struct _gc_runtime_state gc; |
| 69 | struct _pymem_runtime_state mem; |
| 70 | struct _warnings_runtime_state warnings; |
| 71 | struct _ceval_runtime_state ceval; |
| 72 | struct _gilstate_runtime_state gilstate; |
| 73 | |
| 74 | // XXX Consolidate globals found via the check-c-globals script. |
| 75 | } _PyRuntimeState; |
| 76 | |
| 77 | PyAPI_DATA(_PyRuntimeState) _PyRuntime; |
| 78 | PyAPI_FUNC(void) _PyRuntimeState_Init(_PyRuntimeState *); |
| 79 | PyAPI_FUNC(void) _PyRuntimeState_Fini(_PyRuntimeState *); |
| 80 | |
| 81 | #define _Py_CURRENTLY_FINALIZING(tstate) \ |
| 82 | (_PyRuntime.finalizing == tstate) |
| 83 | |
| 84 | |
| 85 | /* Other */ |
| 86 | |
| 87 | PyAPI_FUNC(void) _PyInterpreterState_Enable(_PyRuntimeState *); |
| 88 | |
| 89 | #ifdef __cplusplus |
| 90 | } |
| 91 | #endif |
| 92 | #endif /* !Py_INTERNAL_PYSTATE_H */ |