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gh-111968: Introduce _PyFreeListState and _PyFreeListState_GET API (gh-113584)

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Donghee Na 2024-01-10 08:04:41 +09:00 • committed by GitHub
parent cdca0ce0ad
commit 57bdc6c30d
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17 changed files with 171 additions and 50 deletions
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Python/gc_free_threading.c Normal file
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#include "Python.h"
#include "pycore_pystate.h" // _PyFreeListState_GET()
#include "pycore_tstate.h" // _PyThreadStateImpl
#ifdef Py_GIL_DISABLED
/* Clear all free lists
* All free lists are cleared during the collection of the highest generation.
* Allocated items in the free list may keep a pymalloc arena occupied.
* Clearing the free lists may give back memory to the OS earlier.
* Free-threading version: Since freelists are managed per thread,
* GC should clear all freelists by traversing all threads.
*/
void
_PyGC_ClearAllFreeLists(PyInterpreterState *interp)
{
_PyTuple_ClearFreeList(interp);
_PyFloat_ClearFreeList(interp);
_PyDict_ClearFreeList(interp);
_PyAsyncGen_ClearFreeLists(interp);
_PyContext_ClearFreeList(interp);
HEAD_LOCK(&_PyRuntime);
_PyThreadStateImpl *tstate = (_PyThreadStateImpl *)interp->threads.head;
while (tstate != NULL) {
_Py_ClearFreeLists(&tstate->freelist_state, 0);
tstate = (_PyThreadStateImpl *)tstate->base.next;
}
HEAD_UNLOCK(&_PyRuntime);
}
#endif