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#ifndef Py_INTERNAL_OBJECT_ALLOC_H
#define Py_INTERNAL_OBJECT_ALLOC_H
#include "pycore_object.h" // _PyType_HasFeature()
#include "pycore_pystate.h" // _PyThreadState_GET()
#include "pycore_tstate.h" // _PyThreadStateImpl
#ifdef __cplusplus
extern "C" {
#endif
#ifndef Py_BUILD_CORE
# error "this header requires Py_BUILD_CORE define"
#endif
#ifdef Py_GIL_DISABLED
static inline mi_heap_t *
_PyObject_GetAllocationHeap(_PyThreadStateImpl *tstate, PyTypeObject *tp)
{
struct _mimalloc_thread_state *m = &tstate->mimalloc;
if (_PyType_HasFeature(tp, Py_TPFLAGS_PREHEADER)) {
return &m->heaps[_Py_MIMALLOC_HEAP_GC_PRE];
}
else if (_PyType_IS_GC(tp)) {
return &m->heaps[_Py_MIMALLOC_HEAP_GC];
}
else {
return &m->heaps[_Py_MIMALLOC_HEAP_OBJECT];
}
}
#endif
// Sets the heap used for PyObject_Malloc(), PyObject_Realloc(), etc. calls in
// Py_GIL_DISABLED builds. We use different heaps depending on if the object
// supports GC and if it has a pre-header. We smuggle the choice of heap
// through the _mimalloc_thread_state. In the default build, this simply
// calls PyObject_Malloc().
static inline void *
_PyObject_MallocWithType(PyTypeObject *tp, size_t size)
{
#ifdef Py_GIL_DISABLED
_PyThreadStateImpl *tstate = (_PyThreadStateImpl *)_PyThreadState_GET();
struct _mimalloc_thread_state *m = &tstate->mimalloc;
m->current_object_heap = _PyObject_GetAllocationHeap(tstate, tp);
#endif
void *mem = PyObject_Malloc(size);
#ifdef Py_GIL_DISABLED
m->current_object_heap = &m->heaps[_Py_MIMALLOC_HEAP_OBJECT];
#endif
return mem;
}
static inline void *
_PyObject_ReallocWithType(PyTypeObject *tp, void *ptr, size_t size)
{
#ifdef Py_GIL_DISABLED
_PyThreadStateImpl *tstate = (_PyThreadStateImpl *)_PyThreadState_GET();
struct _mimalloc_thread_state *m = &tstate->mimalloc;
m->current_object_heap = _PyObject_GetAllocationHeap(tstate, tp);
#endif
void *mem = PyObject_Realloc(ptr, size);
#ifdef Py_GIL_DISABLED
m->current_object_heap = &m->heaps[_Py_MIMALLOC_HEAP_OBJECT];
#endif
return mem;
}
#ifdef __cplusplus
}
#endif
#endif // !Py_INTERNAL_OBJECT_ALLOC_H