Where Online Learning is simpler!

The C and C++ Include Header Files

/usr/include/python3.12/internal/pycore_ceval_state.h


$ cat -n /usr/include/python3.12/internal/pycore_ceval_state.h

     1	#ifndef Py_INTERNAL_CEVAL_STATE_H
     2	#define Py_INTERNAL_CEVAL_STATE_H
     3	#ifdef __cplusplus
     4	extern "C" {
     5	#endif
     6	
     7	#ifndef Py_BUILD_CORE
     8	#  error "this header requires Py_BUILD_CORE define"
     9	#endif
    10	
    11	
    12	#include "pycore_atomic.h"          /* _Py_atomic_address */
    13	#include "pycore_gil.h"             // struct _gil_runtime_state
    14	
    15	
    16	struct _pending_calls {
    17	    int busy;
    18	    PyThread_type_lock lock;
    19	    /* Request for running pending calls. */
    20	    _Py_atomic_int calls_to_do;
    21	    /* Request for looking at the `async_exc` field of the current
    22	       thread state.
    23	       Guarded by the GIL. */
    24	    int async_exc;
    25	#define NPENDINGCALLS 32
    26	    struct _pending_call {
    27	        int (*func)(void *);
    28	        void *arg;
    29	    } calls[NPENDINGCALLS];
    30	    int first;
    31	    int last;
    32	};
    33	
    34	typedef enum {
    35	    PERF_STATUS_FAILED = -1,  // Perf trampoline is in an invalid state
    36	    PERF_STATUS_NO_INIT = 0,  // Perf trampoline is not initialized
    37	    PERF_STATUS_OK = 1,       // Perf trampoline is ready to be executed
    38	} perf_status_t;
    39	
    40	
    41	#ifdef PY_HAVE_PERF_TRAMPOLINE
    42	struct code_arena_st;
    43	
    44	struct trampoline_api_st {
    45	    void* (*init_state)(void);
    46	    void (*write_state)(void* state, const void *code_addr,
    47	                        unsigned int code_size, PyCodeObject* code);
    48	    int (*free_state)(void* state);
    49	    void *state;
    50	};
    51	#endif
    52	
    53	struct _ceval_runtime_state {
    54	    struct {
    55	#ifdef PY_HAVE_PERF_TRAMPOLINE
    56	        perf_status_t status;
    57	        Py_ssize_t extra_code_index;
    58	        struct code_arena_st *code_arena;
    59	        struct trampoline_api_st trampoline_api;
    60	        FILE *map_file;
    61	#else
    62	        int _not_used;
    63	#endif
    64	    } perf;
    65	    /* Request for checking signals. It is shared by all interpreters (see
    66	       bpo-40513). Any thread of any interpreter can receive a signal, but only
    67	       the main thread of the main interpreter can handle signals: see
    68	       _Py_ThreadCanHandleSignals(). */
    69	    _Py_atomic_int signals_pending;
    70	    /* Pending calls to be made only on the main thread. */
    71	    struct _pending_calls pending_mainthread;
    72	};
    73	
    74	#ifdef PY_HAVE_PERF_TRAMPOLINE
    75	# define _PyEval_RUNTIME_PERF_INIT \
    76	    { \
    77	        .status = PERF_STATUS_NO_INIT, \
    78	        .extra_code_index = -1, \
    79	    }
    80	#else
    81	# define _PyEval_RUNTIME_PERF_INIT {0}
    82	#endif
    83	
    84	
    85	struct _ceval_state {
    86	    /* This single variable consolidates all requests to break out of
    87	       the fast path in the eval loop. */
    88	    _Py_atomic_int eval_breaker;
    89	    /* Request for dropping the GIL */
    90	    _Py_atomic_int gil_drop_request;
    91	    int recursion_limit;
    92	    struct _gil_runtime_state *gil;
    93	    int own_gil;
    94	    /* The GC is ready to be executed */
    95	    _Py_atomic_int gc_scheduled;
    96	    struct _pending_calls pending;
    97	};
    98	
    99	
   100	#ifdef __cplusplus
   101	}
   102	#endif
   103	#endif /* !Py_INTERNAL_CEVAL_STATE_H */