Commit 202b6064 authored by Antoine Pitrou's avatar Antoine Pitrou

Add sanity assertions in some import lock code (issue #15599).

parent 5b89840d
......@@ -68,6 +68,7 @@ class Finder:
# Simulate some thread-unsafe behaviour. If calls to find_module()
# are properly serialized, `x` will end up the same as `numcalls`.
# Otherwise not.
assert imp.lock_held()
with self.lock:
self.numcalls += 1
x = self.x
......
......@@ -169,6 +169,7 @@ _PyImport_AcquireLock(void)
PyThread_acquire_lock(import_lock, 1);
PyEval_RestoreThread(tstate);
}
assert(import_lock_level == 0);
import_lock_thread = me;
import_lock_level = 1;
}
......@@ -182,6 +183,7 @@ _PyImport_ReleaseLock(void)
if (import_lock_thread != me)
return -1;
import_lock_level--;
assert(import_lock_level >= 0);
if (import_lock_level == 0) {
import_lock_thread = -1;
PyThread_release_lock(import_lock);
......
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