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Merge pull request #35491 from neikeq/issue-35450

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Mono/C#: Lighten up unsafe reference checks
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Rémi Verschelde 2020-01-23 23:06:58 +01:00 committed by GitHub
parent 2e27e74649 55b2e58a98
commit 55f580b24a
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 25 additions and 7 deletions
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27
modules/mono/csharp_script.cpp
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@ -160,7 +160,7 @@ void CSharpLanguage::finish() {
script_bindings.clear();
#ifdef DEBUG_ENABLED
for (List<ObjectID>::Element *E = unsafely_referenced_objects.front(); E; E = E->next()) {
for (Map<ObjectID, int>::Element *E = unsafe_object_references.front(); E; E = E->next()) {
const ObjectID &id = E->get();
Object *obj = ObjectDB::get_instance(id);
@ -632,18 +632,20 @@ Vector<ScriptLanguage::StackInfo> CSharpLanguage::stack_trace_get_info(MonoObjec
void CSharpLanguage::post_unsafe_reference(Object *p_obj) {
#ifdef DEBUG_ENABLED
SCOPED_MUTEX_LOCK(unsafe_object_references_lock);
ObjectID id = p_obj->get_instance_id();
ERR_FAIL_COND_MSG(unsafely_referenced_objects.find(id), "Multiple unsafe references for object: " + p_obj->get_class() + ":" + itos(id));
unsafely_referenced_objects.push_back(id);
unsafe_object_references[id]++;
#endif
}
void CSharpLanguage::pre_unsafe_unreference(Object *p_obj) {
#ifdef DEBUG_ENABLED
SCOPED_MUTEX_LOCK(unsafe_object_references_lock);
ObjectID id = p_obj->get_instance_id();
List<ObjectID>::Element *elem = unsafely_referenced_objects.find(id);
Map<ObjectID, int>::Element *elem = unsafe_object_references.find(id);
ERR_FAIL_NULL(elem);
unsafely_referenced_objects.erase(elem);
if (--elem->value() == 0)
unsafe_object_references.erase(elem);
#endif
}
@ -1246,6 +1248,14 @@ CSharpLanguage::CSharpLanguage() {
language_bind_mutex = Mutex::create();
#endif
#ifdef DEBUG_ENABLED
#ifdef NO_THREADS
unsafe_object_references_lock = NULL;
#else
unsafe_object_references_lock = Mutex::create();
#endif
#endif
lang_idx = -1;
scripts_metadata_invalidated = true;
@ -1274,6 +1284,13 @@ CSharpLanguage::~CSharpLanguage() {
script_gchandle_release_mutex = NULL;
}
#ifdef DEBUG_ENABLED
if (unsafe_object_references_lock) {
memdelete(unsafe_object_references_lock);
unsafe_object_references_lock = NULL;
}
#endif
singleton = NULL;
}

5
modules/mono/csharp_script.h
View file

@ -308,8 +308,9 @@ class CSharpLanguage : public ScriptLanguage {
Map<Object *, CSharpScriptBinding> script_bindings;
#ifdef DEBUG_ENABLED
// List of unsafely referenced objects
List<ObjectID> unsafely_referenced_objects;
// List of unsafe object references
Map<ObjectID, int> unsafe_object_references;
Mutex *unsafe_object_references_lock;
#endif
struct StringNameCache {