1  #ifndef Py_INTERNAL_CONTEXT_H
       2  #define Py_INTERNAL_CONTEXT_H
       3  
       4  #ifndef Py_BUILD_CORE
       5  #  error "this header requires Py_BUILD_CORE define"
       6  #endif
       7  
       8  #include "pycore_hamt.h"   /* PyHamtObject */
       9  
      10  
      11  extern PyTypeObject _PyContextTokenMissing_Type;
      12  
      13  /* runtime lifecycle */
      14  
      15  PyStatus _PyContext_Init(PyInterpreterState *);
      16  void _PyContext_Fini(PyInterpreterState *);
      17  
      18  
      19  /* other API */
      20  
      21  typedef struct {
      22      PyObject_HEAD
      23  } _PyContextTokenMissing;
      24  
      25  #ifndef WITH_FREELISTS
      26  // without freelists
      27  #  define PyContext_MAXFREELIST 0
      28  #endif
      29  
      30  #ifndef PyContext_MAXFREELIST
      31  #  define PyContext_MAXFREELIST 255
      32  #endif
      33  
      34  struct _Py_context_state {
      35  #if PyContext_MAXFREELIST > 0
      36      // List of free PyContext objects
      37      PyContext *freelist;
      38      int numfree;
      39  #endif
      40  };
      41  
      42  struct _pycontextobject {
      43      PyObject_HEAD
      44      PyContext *ctx_prev;
      45      PyHamtObject *ctx_vars;
      46      PyObject *ctx_weakreflist;
      47      int ctx_entered;
      48  };
      49  
      50  
      51  struct _pycontextvarobject {
      52      PyObject_HEAD
      53      PyObject *var_name;
      54      PyObject *var_default;
      55      PyObject *var_cached;
      56      uint64_t var_cached_tsid;
      57      uint64_t var_cached_tsver;
      58      Py_hash_t var_hash;
      59  };
      60  
      61  
      62  struct _pycontexttokenobject {
      63      PyObject_HEAD
      64      PyContext *tok_ctx;
      65      PyContextVar *tok_var;
      66      PyObject *tok_oldval;
      67      int tok_used;
      68  };
      69  
      70  
      71  #endif /* !Py_INTERNAL_CONTEXT_H */