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dc09301067
The free-threaded build partially stores heap type reference counts in distributed manner in per-thread arrays. This avoids reference count contention when creating or destroying instances. Co-authored-by: Ken Jin <kenjin@python.org>
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
#ifndef Py_INTERNAL_TSTATE_H
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#define Py_INTERNAL_TSTATE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef Py_BUILD_CORE
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# error "this header requires Py_BUILD_CORE define"
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#endif
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#include "pycore_brc.h" // struct _brc_thread_state
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#include "pycore_freelist_state.h" // struct _Py_freelists
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#include "pycore_mimalloc.h" // struct _mimalloc_thread_state
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#include "pycore_qsbr.h" // struct qsbr
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// Every PyThreadState is actually allocated as a _PyThreadStateImpl. The
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// PyThreadState fields are exposed as part of the C API, although most fields
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// are intended to be private. The _PyThreadStateImpl fields not exposed.
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typedef struct _PyThreadStateImpl {
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// semi-public fields are in PyThreadState.
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PyThreadState base;
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PyObject *asyncio_running_loop; // Strong reference
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struct _qsbr_thread_state *qsbr; // only used by free-threaded build
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struct llist_node mem_free_queue; // delayed free queue
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#ifdef Py_GIL_DISABLED
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struct _gc_thread_state gc;
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struct _mimalloc_thread_state mimalloc;
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struct _Py_freelists freelists;
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struct _brc_thread_state brc;
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struct {
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// The thread-local refcounts for heap type objects
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Py_ssize_t *refcounts;
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// Size of the refcounts array.
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Py_ssize_t size;
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// If set, don't use thread-local refcounts
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int is_finalized;
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} types;
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#endif
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#if defined(Py_REF_DEBUG) && defined(Py_GIL_DISABLED)
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Py_ssize_t reftotal; // this thread's total refcount operations
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#endif
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} _PyThreadStateImpl;
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_INTERNAL_TSTATE_H */
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