3b88476130
I'm working on Nim bindings and Nim GC needs to know the stack boundaries to check whether certain pointers are located on the stack or in the heap. This commit adds godot_get_stack_bottom procedure to gdnative module which returns pointer to the stack bottom of the main thread. Later on this may be improved to return stack bottom of the current thread.
540 lines
11 KiB
C++
540 lines
11 KiB
C++
/*************************************************************************/
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/* os.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "os.h"
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#include "dir_access.h"
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#include "input.h"
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#include "os/file_access.h"
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#include "project_settings.h"
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#include <stdarg.h>
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OS *OS::singleton = NULL;
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OS *OS::get_singleton() {
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return singleton;
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}
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uint32_t OS::get_ticks_msec() const {
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return get_ticks_usec() / 1000;
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}
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uint64_t OS::get_splash_tick_msec() const {
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return _msec_splash;
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}
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uint64_t OS::get_unix_time() const {
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return 0;
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};
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uint64_t OS::get_system_time_secs() const {
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return 0;
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}
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void OS::debug_break(){
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// something
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};
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void OS::print_error(const char *p_function, const char *p_file, int p_line, const char *p_code, const char *p_rationale, ErrorType p_type) {
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const char *err_type;
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switch (p_type) {
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case ERR_ERROR: err_type = "**ERROR**"; break;
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case ERR_WARNING: err_type = "**WARNING**"; break;
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case ERR_SCRIPT: err_type = "**SCRIPT ERROR**"; break;
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case ERR_SHADER: err_type = "**SHADER ERROR**"; break;
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}
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if (p_rationale && *p_rationale)
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print("%s: %s\n ", err_type, p_rationale);
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print("%s: At: %s:%i:%s() - %s\n", err_type, p_file, p_line, p_function, p_code);
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}
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void OS::print(const char *p_format, ...) {
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va_list argp;
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va_start(argp, p_format);
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vprint(p_format, argp);
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va_end(argp);
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};
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void OS::printerr(const char *p_format, ...) {
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va_list argp;
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va_start(argp, p_format);
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vprint(p_format, argp, true);
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va_end(argp);
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};
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void OS::set_keep_screen_on(bool p_enabled) {
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_keep_screen_on = p_enabled;
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}
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bool OS::is_keep_screen_on() const {
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return _keep_screen_on;
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}
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void OS::set_low_processor_usage_mode(bool p_enabled) {
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low_processor_usage_mode = p_enabled;
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}
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bool OS::is_in_low_processor_usage_mode() const {
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return low_processor_usage_mode;
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}
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void OS::set_clipboard(const String &p_text) {
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_local_clipboard = p_text;
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}
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String OS::get_clipboard() const {
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return _local_clipboard;
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}
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String OS::get_executable_path() const {
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return _execpath;
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}
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int OS::get_process_ID() const {
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return -1;
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};
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bool OS::is_stdout_verbose() const {
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return _verbose_stdout;
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}
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void OS::set_last_error(const char *p_error) {
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GLOBAL_LOCK_FUNCTION
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if (p_error == NULL)
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p_error = "Unknown Error";
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if (last_error)
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memfree(last_error);
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last_error = NULL;
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int len = 0;
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while (p_error[len++])
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;
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last_error = (char *)memalloc(len);
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for (int i = 0; i < len; i++)
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last_error[i] = p_error[i];
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}
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const char *OS::get_last_error() const {
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GLOBAL_LOCK_FUNCTION
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return last_error ? last_error : "";
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}
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void OS::dump_memory_to_file(const char *p_file) {
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//Memory::dump_static_mem_to_file(p_file);
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}
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static FileAccess *_OSPRF = NULL;
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static void _OS_printres(Object *p_obj) {
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Resource *res = p_obj->cast_to<Resource>();
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if (!res)
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return;
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String str = itos(res->get_instance_ID()) + String(res->get_class()) + ":" + String(res->get_name()) + " - " + res->get_path();
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if (_OSPRF)
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_OSPRF->store_line(str);
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else
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print_line(str);
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}
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bool OS::has_virtual_keyboard() const {
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return false;
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}
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void OS::show_virtual_keyboard(const String &p_existing_text, const Rect2 &p_screen_rect) {
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}
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void OS::hide_virtual_keyboard() {
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}
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void OS::print_all_resources(String p_to_file) {
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ERR_FAIL_COND(p_to_file != "" && _OSPRF);
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if (p_to_file != "") {
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Error err;
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_OSPRF = FileAccess::open(p_to_file, FileAccess::WRITE, &err);
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if (err != OK) {
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_OSPRF = NULL;
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ERR_FAIL_COND(err != OK);
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}
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}
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ObjectDB::debug_objects(_OS_printres);
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if (p_to_file != "") {
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if (_OSPRF)
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memdelete(_OSPRF);
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_OSPRF = NULL;
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}
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}
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void OS::print_resources_in_use(bool p_short) {
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ResourceCache::dump(NULL, p_short);
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}
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void OS::dump_resources_to_file(const char *p_file) {
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ResourceCache::dump(p_file);
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}
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void OS::clear_last_error() {
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GLOBAL_LOCK_FUNCTION
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if (last_error)
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memfree(last_error);
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last_error = NULL;
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}
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void OS::set_no_window_mode(bool p_enable) {
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_no_window = p_enable;
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}
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bool OS::is_no_window_mode_enabled() const {
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return _no_window;
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}
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int OS::get_exit_code() const {
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return _exit_code;
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}
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void OS::set_exit_code(int p_code) {
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_exit_code = p_code;
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}
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String OS::get_locale() const {
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return "en";
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}
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String OS::get_resource_dir() const {
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return ProjectSettings::get_singleton()->get_resource_path();
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}
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String OS::get_system_dir(SystemDir p_dir) const {
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return ".";
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}
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String OS::get_safe_application_name() const {
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String an = ProjectSettings::get_singleton()->get("application/config/name");
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Vector<String> invalid_char = String("\\ / : * ? \" < > |").split(" ");
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for (int i = 0; i < invalid_char.size(); i++) {
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an = an.replace(invalid_char[i], "-");
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}
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return an;
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}
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String OS::get_data_dir() const {
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return ".";
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};
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Error OS::shell_open(String p_uri) {
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return ERR_UNAVAILABLE;
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};
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// implement these with the canvas?
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Error OS::dialog_show(String p_title, String p_description, Vector<String> p_buttons, Object *p_obj, String p_callback) {
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while (true) {
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print("%ls\n--------\n%ls\n", p_title.c_str(), p_description.c_str());
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for (int i = 0; i < p_buttons.size(); i++) {
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if (i > 0) print(", ");
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print("%i=%ls", i + 1, p_buttons[i].c_str());
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};
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print("\n");
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String res = get_stdin_string().strip_edges();
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if (!res.is_numeric())
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continue;
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int n = res.to_int();
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if (n < 0 || n >= p_buttons.size())
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continue;
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if (p_obj && p_callback != "")
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p_obj->call_deferred(p_callback, n);
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break;
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};
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return OK;
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};
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Error OS::dialog_input_text(String p_title, String p_description, String p_partial, Object *p_obj, String p_callback) {
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ERR_FAIL_COND_V(!p_obj, FAILED);
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ERR_FAIL_COND_V(p_callback == "", FAILED);
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print("%ls\n---------\n%ls\n[%ls]:\n", p_title.c_str(), p_description.c_str(), p_partial.c_str());
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String res = get_stdin_string().strip_edges();
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bool success = true;
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if (res == "") {
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res = p_partial;
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};
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p_obj->call_deferred(p_callback, success, res);
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return OK;
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};
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int OS::get_static_memory_usage() const {
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return Memory::get_mem_usage();
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}
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int OS::get_dynamic_memory_usage() const {
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return MemoryPool::total_memory;
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}
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int OS::get_static_memory_peak_usage() const {
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return Memory::get_mem_max_usage();
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}
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Error OS::set_cwd(const String &p_cwd) {
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return ERR_CANT_OPEN;
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}
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bool OS::has_touchscreen_ui_hint() const {
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//return false;
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return Input::get_singleton() && Input::get_singleton()->is_emulating_touchscreen();
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}
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int OS::get_free_static_memory() const {
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return Memory::get_mem_available();
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}
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void OS::yield() {
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}
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void OS::set_screen_orientation(ScreenOrientation p_orientation) {
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_orientation = p_orientation;
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}
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OS::ScreenOrientation OS::get_screen_orientation() const {
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return (OS::ScreenOrientation)_orientation;
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}
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void OS::_ensure_data_dir() {
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String dd = get_data_dir();
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DirAccess *da = DirAccess::open(dd);
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if (da) {
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memdelete(da);
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return;
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}
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da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
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Error err = da->make_dir_recursive(dd);
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if (err != OK) {
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ERR_EXPLAIN("Error attempting to create data dir: " + dd);
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}
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ERR_FAIL_COND(err != OK);
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memdelete(da);
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}
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void OS::set_icon(const Ref<Image> &p_icon) {
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}
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String OS::get_model_name() const {
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return "GenericDevice";
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}
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void OS::set_cmdline(const char *p_execpath, const List<String> &p_args) {
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_execpath = p_execpath;
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_cmdline = p_args;
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};
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void OS::release_rendering_thread() {
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}
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void OS::make_rendering_thread() {
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}
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void OS::swap_buffers() {
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}
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String OS::get_unique_ID() const {
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ERR_FAIL_V("");
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}
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int OS::get_processor_count() const {
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return 1;
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}
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Error OS::native_video_play(String p_path, float p_volume, String p_audio_track, String p_subtitle_track) {
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return FAILED;
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};
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bool OS::native_video_is_playing() const {
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return false;
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};
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void OS::native_video_pause(){
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};
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void OS::native_video_unpause(){
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};
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void OS::native_video_stop(){
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};
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void OS::set_mouse_mode(MouseMode p_mode) {
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}
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bool OS::can_use_threads() const {
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#ifdef NO_THREADS
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return false;
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#else
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return true;
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#endif
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}
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OS::MouseMode OS::get_mouse_mode() const {
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return MOUSE_MODE_VISIBLE;
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}
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OS::LatinKeyboardVariant OS::get_latin_keyboard_variant() const {
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return LATIN_KEYBOARD_QWERTY;
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}
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bool OS::is_joy_known(int p_device) {
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return true;
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}
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String OS::get_joy_guid(int p_device) const {
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return "Default Joypad";
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}
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void OS::set_context(int p_context) {
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}
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void OS::set_use_vsync(bool p_enable) {
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}
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bool OS::is_vsync_enabled() const {
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return true;
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}
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PowerState OS::get_power_state() {
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return POWERSTATE_UNKNOWN;
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}
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int OS::get_power_seconds_left() {
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return -1;
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}
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int OS::get_power_percent_left() {
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return -1;
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}
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bool OS::check_feature_support(const String &p_feature) {
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if (p_feature == get_name())
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return true;
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#ifdef DEBUG_ENABLED
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if (p_feature == "debug")
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return true;
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#else
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if (p_feature == "release")
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return true;
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#endif
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if (_check_internal_feature_support(p_feature))
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return true;
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return false;
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}
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void *OS::get_stack_bottom() const {
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return _stack_bottom;
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}
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OS::OS() {
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void *volatile stack_bottom;
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last_error = NULL;
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singleton = this;
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_keep_screen_on = true; // set default value to true, because this had been true before godot 2.0.
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low_processor_usage_mode = false;
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_verbose_stdout = false;
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_no_window = false;
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_exit_code = 0;
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_orientation = SCREEN_LANDSCAPE;
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_render_thread_mode = RENDER_THREAD_SAFE;
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_allow_hidpi = true;
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_stack_bottom = (void *)(&stack_bottom);
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}
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OS::~OS() {
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singleton = NULL;
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}
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