Merge pull request #54499 from Faless/threads/4.x_work_pool_default

core/os/os.h

@@ -298,6 +298,7 @@ public:
 	virtual void set_exit_code(int p_code);
 
 	virtual int get_processor_count() const;
+	virtual int get_default_thread_pool_size() const { return get_processor_count(); }
 
 	virtual String get_unique_id() const;
 

core/templates/thread_work_pool.cpp

@@ -47,7 +47,7 @@ void ThreadWorkPool::_thread_function(void *p_user) {
 void ThreadWorkPool::init(int p_thread_count) {
 	ERR_FAIL_COND(threads != nullptr);
 	if (p_thread_count < 0) {
-		p_thread_count = OS::get_singleton()->get_processor_count();
+		p_thread_count = OS::get_singleton()->get_default_thread_pool_size();
 	}
 
 	thread_count = p_thread_count;

platform/javascript/os_javascript.h

@@ -75,6 +75,7 @@ public:
 	Error kill(const ProcessID &p_pid) override;
 	int get_process_id() const override;
 	int get_processor_count() const override;
+	int get_default_thread_pool_size() const override { return 1; }
 
 	String get_executable_path() const override;
 	Error shell_open(String p_uri) override;