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bpo-40609: Rewrite how _tracemalloc handles domains (GH-20059)

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Rewrite how the _tracemalloc module stores traces of other domains.
Rather than storing the domain inside the key, it now uses a new hash
table with the domain as the key, and the data is a per-domain traces
hash table.

* Add tracemalloc_domain hash table.
* Remove _Py_tracemalloc_config.use_domain.
* Remove pointer_t and related functions.
This commit is contained in:
Victor Stinner 2020-05-13 01:36:47 +02:00 • committed by GitHub
parent 3d54211e6e
commit 9e2ca17420
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2 changed files with 179 additions and 165 deletions
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7
Include/internal/pycore_pymem.h
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@ -88,17 +88,12 @@ struct _PyTraceMalloc_Config {
/* limit of the number of frames in a traceback, 1 by default.
Variable protected by the GIL. */
int max_nframe;
/* use domain in trace key?
Variable protected by the GIL. */
int use_domain;
};
#define _PyTraceMalloc_Config_INIT \
{.initialized = TRACEMALLOC_NOT_INITIALIZED, \
.tracing = 0, \
.max_nframe = 1, \
.use_domain = 0}
.max_nframe = 1}
PyAPI_DATA(struct _PyTraceMalloc_Config) _Py_tracemalloc_config;