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cpython/Include/internal/pycore_object_state.h

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gh-102304: Move _Py_RefTotal to _PyRuntimeState (gh-102543) The essentially eliminates the global variable, with the associated benefits. This is also a precursor to isolating this bit of state to PyInterpreterState. Folks that currently read _Py_RefTotal directly would have to start using _Py_GetGlobalRefTotal() instead. https://github.com/python/cpython/issues/102304
2023-03-20 13:03:04 -03:00
#ifndef Py_INTERNAL_OBJECT_STATE_H
#define Py_INTERNAL_OBJECT_STATE_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef Py_BUILD_CORE
# error "this header requires Py_BUILD_CORE define"
#endif
gh-100240: Use a consistent implementation for freelists (#121934) This combines and updates our freelist handling to use a consistent implementation. Objects in the freelist are linked together using the first word of memory block. If configured with freelists disabled, these operations are essentially no-ops.
2024-07-22 13:08:27 -03:00
#include "pycore_freelist_state.h" // _Py_freelists
#include "pycore_hashtable.h" // _Py_hashtable_t
gh-108634: Py_TRACE_REFS uses a hash table (#108663) Python built with "configure --with-trace-refs" (tracing references) is now ABI compatible with Python release build and debug build. Moreover, it now also supports the Limited API. Change Py_TRACE_REFS build: * Remove _PyObject_EXTRA_INIT macro. * The PyObject structure no longer has two extra members (_ob_prev and _ob_next). * Use a hash table (_Py_hashtable_t) to trace references (all objects): PyInterpreterState.object_state.refchain. * Py_TRACE_REFS build is now ABI compatible with release build and debug build. * Limited C API extensions can now be built with Py_TRACE_REFS: xxlimited, xxlimited_35, _testclinic_limited. * No longer rename PyModule_Create2() and PyModule_FromDefAndSpec2() functions to PyModule_Create2TraceRefs() and PyModule_FromDefAndSpec2TraceRefs(). * _Py_PrintReferenceAddresses() is now called before finalize_interp_delete() which deletes the refchain hash table. * test_tracemalloc find_trace() now also filters by size to ignore the memory allocated by _PyRefchain_Trace(). Test changes for Py_TRACE_REFS: * Add test.support.Py_TRACE_REFS constant. * Add test_sys.test_getobjects() to test sys.getobjects() function. * test_exceptions skips test_recursion_normalizing_with_no_memory() and test_memory_error_in_PyErr_PrintEx() if Python is built with Py_TRACE_REFS. * test_repl skips test_no_memory(). * test_capi skisp test_set_nomemory().
2023-08-31 13:33:34 -03:00
gh-102304: Move _Py_RefTotal to _PyRuntimeState (gh-102543) The essentially eliminates the global variable, with the associated benefits. This is also a precursor to isolating this bit of state to PyInterpreterState. Folks that currently read _Py_RefTotal directly would have to start using _Py_GetGlobalRefTotal() instead. https://github.com/python/cpython/issues/102304
2023-03-20 13:03:04 -03:00
struct _py_object_runtime_state {
gh-102304: Move the Total Refcount to PyInterpreterState (gh-102545) Moving it valuable with a per-interpreter GIL. However, it is also useful without one, since it allows us to identify refleaks within a single interpreter or where references are escaping an interpreter. This becomes more important as we move the obmalloc state to PyInterpreterState. https://github.com/python/cpython/issues/102304
2023-03-21 14:46:09 -03:00
#ifdef Py_REF_DEBUG
Py_ssize_t interpreter_leaks;
#endif
gh-107080: Fix Py_TRACE_REFS Crashes Under Isolated Subinterpreters (gh-107567) The linked list of objects was a global variable, which broke isolation between interpreters, causing crashes. To solve this, we've moved the linked list to each interpreter.
2023-08-03 16:51:08 -03:00
int _not_used;
gh-102304: Move the Total Refcount to PyInterpreterState (gh-102545) Moving it valuable with a per-interpreter GIL. However, it is also useful without one, since it allows us to identify refleaks within a single interpreter or where references are escaping an interpreter. This becomes more important as we move the obmalloc state to PyInterpreterState. https://github.com/python/cpython/issues/102304
2023-03-21 14:46:09 -03:00
};
struct _py_object_state {
gh-111968: Rename freelist related struct names to Eric's suggestion (gh-115329)
2024-02-13 20:32:51 -04:00
#if !defined(Py_GIL_DISABLED)
gh-100240: Use a consistent implementation for freelists (#121934) This combines and updates our freelist handling to use a consistent implementation. Objects in the freelist are linked together using the first word of memory block. If configured with freelists disabled, these operations are essentially no-ops.
2024-07-22 13:08:27 -03:00
struct _Py_freelists freelists;
gh-111968: Rename freelist related struct names to Eric's suggestion (gh-115329)
2024-02-13 20:32:51 -04:00
#endif
gh-102304: Move _Py_RefTotal to _PyRuntimeState (gh-102543) The essentially eliminates the global variable, with the associated benefits. This is also a precursor to isolating this bit of state to PyInterpreterState. Folks that currently read _Py_RefTotal directly would have to start using _Py_GetGlobalRefTotal() instead. https://github.com/python/cpython/issues/102304
2023-03-20 13:03:04 -03:00
#ifdef Py_REF_DEBUG
Py_ssize_t reftotal;
#endif
gh-107080: Fix Py_TRACE_REFS Crashes Under Isolated Subinterpreters (gh-107567) The linked list of objects was a global variable, which broke isolation between interpreters, causing crashes. To solve this, we've moved the linked list to each interpreter.
2023-08-03 16:51:08 -03:00
#ifdef Py_TRACE_REFS
gh-108634: Py_TRACE_REFS uses a hash table (#108663) Python built with "configure --with-trace-refs" (tracing references) is now ABI compatible with Python release build and debug build. Moreover, it now also supports the Limited API. Change Py_TRACE_REFS build: * Remove _PyObject_EXTRA_INIT macro. * The PyObject structure no longer has two extra members (_ob_prev and _ob_next). * Use a hash table (_Py_hashtable_t) to trace references (all objects): PyInterpreterState.object_state.refchain. * Py_TRACE_REFS build is now ABI compatible with release build and debug build. * Limited C API extensions can now be built with Py_TRACE_REFS: xxlimited, xxlimited_35, _testclinic_limited. * No longer rename PyModule_Create2() and PyModule_FromDefAndSpec2() functions to PyModule_Create2TraceRefs() and PyModule_FromDefAndSpec2TraceRefs(). * _Py_PrintReferenceAddresses() is now called before finalize_interp_delete() which deletes the refchain hash table. * test_tracemalloc find_trace() now also filters by size to ignore the memory allocated by _PyRefchain_Trace(). Test changes for Py_TRACE_REFS: * Add test.support.Py_TRACE_REFS constant. * Add test_sys.test_getobjects() to test sys.getobjects() function. * test_exceptions skips test_recursion_normalizing_with_no_memory() and test_memory_error_in_PyErr_PrintEx() if Python is built with Py_TRACE_REFS. * test_repl skips test_no_memory(). * test_capi skisp test_set_nomemory().
2023-08-31 13:33:34 -03:00
// Hash table storing all objects. The key is the object pointer
// (PyObject*) and the value is always the number 1 (as uintptr_t).
// See _PyRefchain_IsTraced() and _PyRefchain_Trace() functions.
_Py_hashtable_t *refchain;
gh-107080: Fix Py_TRACE_REFS Crashes Under Isolated Subinterpreters (gh-107567) The linked list of objects was a global variable, which broke isolation between interpreters, causing crashes. To solve this, we've moved the linked list to each interpreter.
2023-08-03 16:51:08 -03:00
#endif
int _not_used;
gh-102304: Move _Py_RefTotal to _PyRuntimeState (gh-102543) The essentially eliminates the global variable, with the associated benefits. This is also a precursor to isolating this bit of state to PyInterpreterState. Folks that currently read _Py_RefTotal directly would have to start using _Py_GetGlobalRefTotal() instead. https://github.com/python/cpython/issues/102304
2023-03-20 13:03:04 -03:00
};
#ifdef __cplusplus
}
#endif
#endif /* !Py_INTERNAL_OBJECT_STATE_H */