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GH-100000: Cleanup and polish various watchers code (GH-99998)

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* Initialize `type_watchers` array to `NULL`s
* Optimize code watchers notification
* Optimize func watchers notification
This commit is contained in:
Itamar Ostricher 2022-12-14 11:14:16 -08:00 • committed by GitHub
parent aa8591e9ca
commit ae83c78215
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 37 additions and 14 deletions
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15
Objects/codeobject.c
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@ -15,14 +15,21 @@ static void
notify_code_watchers(PyCodeEvent event, PyCodeObject *co)
{
PyInterpreterState *interp = _PyInterpreterState_GET();
if (interp->active_code_watchers) {
assert(interp->_initialized);
for (int i = 0; i < CODE_MAX_WATCHERS; i++) {
assert(interp->_initialized);
uint8_t bits = interp->active_code_watchers;
int i = 0;
while (bits) {
assert(i < CODE_MAX_WATCHERS);
if (bits & 1) {
PyCode_WatchCallback cb = interp->code_watchers[i];
if ((cb != NULL) && (cb(event, co) < 0)) {
// callback must be non-null if the watcher bit is set
assert(cb != NULL);
if (cb(event, co) < 0) {
PyErr_WriteUnraisable((PyObject *) co);
}
}
i++;
bits >>= 1;
}
}