Yu1709$!%yuyu!$%wutu!5=126+

                
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      \_/     \/    @ligmakokz

Editing: pycore_brc.h

#ifndef Py_INTERNAL_BRC_H
#define Py_INTERNAL_BRC_H

#include <stdint.h>
#include "pycore_llist.h"           // struct llist_node
#include "pycore_lock.h"            // PyMutex
#include "pycore_object_stack.h"    // _PyObjectStack

#ifdef __cplusplus
extern "C" {
#endif

#ifndef Py_BUILD_CORE
#  error "this header requires Py_BUILD_CORE define"
#endif

#ifdef Py_GIL_DISABLED

// Prime number to avoid correlations with memory addresses.
#define _Py_BRC_NUM_BUCKETS 257

// Hash table bucket
struct _brc_bucket {
    // Mutex protects both the bucket and thread state queues in this bucket.
    PyMutex mutex;

// Linked list of _PyThreadStateImpl objects hashed to this bucket.
    struct llist_node root;
};

// Per-interpreter biased reference counting state
struct _brc_state {
    // Hash table of thread states by thread-id. Thread states within a bucket
    // are chained using a doubly-linked list.
    struct _brc_bucket table[_Py_BRC_NUM_BUCKETS];
};

// Per-thread biased reference counting state
struct _brc_thread_state {
    // Linked-list of thread states per hash bucket
    struct llist_node bucket_node;

// Thread-id as determined by _PyThread_Id()
    uintptr_t tid;

// Objects with refcounts to be merged (protected by bucket mutex)
    _PyObjectStack objects_to_merge;

// Local stack of objects to be merged (not accessed by other threads)
    _PyObjectStack local_objects_to_merge;
};

// Initialize/finalize the per-thread biased reference counting state
void _Py_brc_init_thread(PyThreadState *tstate);
void _Py_brc_remove_thread(PyThreadState *tstate);

// Initialize per-interpreter state
void _Py_brc_init_state(PyInterpreterState *interp);

void _Py_brc_after_fork(PyInterpreterState *interp);

// Enqueues an object to be merged by it's owning thread (tid). This
// steals a reference to the object.
void _Py_brc_queue_object(PyObject *ob);

// Merge the refcounts of queued objects for the current thread.
void _Py_brc_merge_refcounts(PyThreadState *tstate);

#endif /* Py_GIL_DISABLED */

#ifdef __cplusplus
}
#endif
#endif /* !Py_INTERNAL_BRC_H */

Name	Type	Actions
mimalloc	Directory
pycore_abstract.h	File
pycore_asdl.h	File
pycore_ast.h	File
pycore_ast_state.h	File
pycore_atexit.h	File
pycore_backoff.h	File
pycore_bitutils.h	File
pycore_blocks_output_buffer.h	File
pycore_brc.h	File
pycore_bytes_methods.h	File
pycore_bytesobject.h	File
pycore_call.h	File
pycore_capsule.h	File
pycore_cell.h	File
pycore_ceval.h	File
pycore_ceval_state.h	File
pycore_code.h	File
pycore_codecs.h	File
pycore_compile.h	File
pycore_complexobject.h	File
pycore_condvar.h	File
pycore_context.h	File
pycore_critical_section.h	File
pycore_crossinterp.h	File
pycore_descrobject.h	File
pycore_dict.h	File
pycore_dict_state.h	File
pycore_dtoa.h	File
pycore_emscripten_signal.h	File
pycore_emscripten_trampoline.h	File
pycore_exceptions.h	File
pycore_faulthandler.h	File
pycore_fileutils.h	File
pycore_fileutils_windows.h	File
pycore_floatobject.h	File
pycore_flowgraph.h	File
pycore_format.h	File
pycore_frame.h	File
pycore_freelist.h	File
pycore_function.h	File
pycore_gc.h	File
pycore_genobject.h	File
pycore_getopt.h	File
pycore_gil.h	File
pycore_global_objects.h	File
pycore_global_objects_fini_generated.h	File
pycore_global_strings.h	File
pycore_hamt.h	File
pycore_hashtable.h	File
pycore_identifier.h	File
pycore_import.h	File
pycore_importdl.h	File
pycore_initconfig.h	File
pycore_instruction_sequence.h	File
pycore_instruments.h	File
pycore_interp.h	File
pycore_intrinsics.h	File
pycore_jit.h	File
pycore_list.h	File
pycore_llist.h	File
pycore_lock.h	File
pycore_long.h	File
pycore_memoryobject.h	File
pycore_mimalloc.h	File
pycore_modsupport.h	File
pycore_moduleobject.h	File
pycore_namespace.h	File
pycore_object.h	File
pycore_object_alloc.h	File
pycore_object_stack.h	File
pycore_object_state.h	File
pycore_obmalloc.h	File
pycore_obmalloc_init.h	File
pycore_opcode_metadata.h	File
pycore_opcode_utils.h	File
pycore_optimizer.h	File
pycore_parking_lot.h	File
pycore_parser.h	File
pycore_pathconfig.h	File
pycore_pyarena.h	File
pycore_pyatomic_ft_wrappers.h	File
pycore_pybuffer.h	File
pycore_pyerrors.h	File
pycore_pyhash.h	File
pycore_pylifecycle.h	File
pycore_pymath.h	File
pycore_pymem.h	File
pycore_pymem_init.h	File
pycore_pystate.h	File
pycore_pystats.h	File
pycore_pythonrun.h	File
pycore_pythread.h	File
pycore_qsbr.h	File
pycore_range.h	File
pycore_runtime.h	File
pycore_runtime_init.h	File
pycore_runtime_init_generated.h	File
pycore_semaphore.h	File
pycore_setobject.h	File
pycore_signal.h	File
pycore_sliceobject.h	File
pycore_stackref.h	File
pycore_strhex.h	File
pycore_structseq.h	File
pycore_symtable.h	File
pycore_sysmodule.h	File
pycore_time.h	File
pycore_token.h	File
pycore_traceback.h	File
pycore_tracemalloc.h	File
pycore_tstate.h	File
pycore_tuple.h	File
pycore_typeobject.h	File
pycore_typevarobject.h	File
pycore_ucnhash.h	File
pycore_unicodeobject.h	File
pycore_unicodeobject_generated.h	File
pycore_unionobject.h	File
pycore_uop_ids.h	File
pycore_uop_metadata.h	File
pycore_warnings.h	File
pycore_weakref.h	File