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Flush stuff pending on visual server thread when exiting, fixes #24669

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This commit is contained in:
Juan Linietsky 2019-03-01 16:32:49 -03:00
parent 856c36cb89
commit abbca3b3cc
2 changed files with 10 additions and 1 deletions
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8
editor/editor_resource_preview.cpp
View file

@ -313,6 +313,8 @@ void EditorResourcePreview::_thread() {
preview_mutex->unlock();
}
}
exited = true;
}
void EditorResourcePreview::queue_edited_resource_preview(const Ref<Resource> &p_res, Object *p_receiver, const StringName &p_receiver_func, const Variant &p_userdata) {
@ -420,11 +422,16 @@ void EditorResourcePreview::check_for_invalidation(const String &p_path) {
void EditorResourcePreview::start() {
ERR_FAIL_COND(thread);
thread = Thread::create(_thread_func, this);
exited = false;
}
void EditorResourcePreview::stop() {
if (thread) {
exit = true;
preview_sem->post();
while (!exited) {
OS::get_singleton()->delay_usec(10000);
VisualServer::get_singleton()->sync(); //sync pending stuff, as thread may be blocked on visual server
}
Thread::wait_to_finish(thread);
memdelete(thread);
thread = NULL;
@ -438,6 +445,7 @@ EditorResourcePreview::EditorResourcePreview() {
preview_sem = Semaphore::create();
order = 0;
exit = false;
exited = false;
}
EditorResourcePreview::~EditorResourcePreview() {

3
editor/editor_resource_preview.h
View file

@ -90,7 +90,8 @@ class EditorResourcePreview : public Node {
Mutex *preview_mutex;
Semaphore *preview_sem;
Thread *thread;
bool exit;
volatile bool exit;
volatile bool exited;
struct Item {
Ref<Texture> preview;