From 0d7f50a2461b418438403b88dafc0c5b49ee28ac Mon Sep 17 00:00:00 2001
From: Ivan Chikish <nekotekina@gmail.com>
Date: Fri, 14 Jul 2023 20:59:57 +0300
Subject: [PATCH] [orbis-kernel] +sys_utc_to_localtime, +sys_localtime_to_utc

---
 orbis-kernel/include/orbis/sys/sysproto.hpp | 11 ++++----
 orbis-kernel/include/orbis/time.hpp         |  5 ++++
 orbis-kernel/src/sys/sys_sce.cpp            | 29 ++++++++++++++++++---
 3 files changed, 36 insertions(+), 9 deletions(-)

diff --git a/orbis-kernel/include/orbis/sys/sysproto.hpp b/orbis-kernel/include/orbis/sys/sysproto.hpp
index b1d8d3594..222653d9f 100644
--- a/orbis-kernel/include/orbis/sys/sysproto.hpp
+++ b/orbis-kernel/include/orbis/sys/sysproto.hpp
@@ -1,6 +1,7 @@
 #include <array>
 #include <orbis/error.hpp>
 #include <orbis/thread.hpp>
+#include <orbis/time.hpp>
 
 namespace orbis {
 using acl_type_t = sint;
@@ -11,9 +12,6 @@ using cpuwhich_t = sint;
 using cpulevel_t = sint;
 using SceKernelModule = ModuleHandle;
 
-struct timeval;
-struct timezone;
-
 struct ModuleInfo;
 struct ModuleInfoEx;
 struct KEvent;
@@ -740,8 +738,11 @@ SysResult sys_thr_get_ucontext(Thread *thread /* TODO */);
 SysResult sys_thr_set_ucontext(Thread *thread /* TODO */);
 SysResult sys_set_timezone_info(Thread *thread /* TODO */);
 SysResult sys_set_phys_fmem_limit(Thread *thread /* TODO */);
-SysResult sys_utc_to_localtime(Thread *thread /* TODO */);
-SysResult sys_localtime_to_utc(Thread *thread /* TODO */);
+SysResult sys_utc_to_localtime(Thread *thread, int64_t time, int64_t *localtime,
+                               orbis::timesec *_sec, int *_dst_sec);
+SysResult sys_localtime_to_utc(Thread *thread, int64_t time, uint unk,
+                               int64_t *ptime, orbis::timesec *_sec,
+                               int *_dst_sec);
 SysResult sys_set_uevt(Thread *thread /* TODO */);
 SysResult sys_get_cpu_usage_proc(Thread *thread /* TODO */);
 SysResult sys_get_map_statistics(Thread *thread /* TODO */);
diff --git a/orbis-kernel/include/orbis/time.hpp b/orbis-kernel/include/orbis/time.hpp
index e8779ccfd..e73555e01 100644
--- a/orbis-kernel/include/orbis/time.hpp
+++ b/orbis-kernel/include/orbis/time.hpp
@@ -15,4 +15,9 @@ struct timezone {
   sint tz_minuteswest;
   sint tz_dsttime;
 };
+struct timesec {
+  int64_t tz_time;
+  sint tz_secwest;
+  sint tz_dstsec;
+};
 } // namespace orbis
diff --git a/orbis-kernel/src/sys/sys_sce.cpp b/orbis-kernel/src/sys/sys_sce.cpp
index 192c35577..3e7315465 100644
--- a/orbis-kernel/src/sys/sys_sce.cpp
+++ b/orbis-kernel/src/sys/sys_sce.cpp
@@ -4,6 +4,7 @@
 #include "evf.hpp"
 #include "module/ModuleInfo.hpp"
 #include "module/ModuleInfoEx.hpp"
+#include "orbis/time.hpp"
 #include "sys/sysproto.hpp"
 #include "utils/Logs.hpp"
 #include <chrono>
@@ -852,11 +853,31 @@ orbis::SysResult orbis::sys_set_timezone_info(Thread *thread /* TODO */) {
 orbis::SysResult orbis::sys_set_phys_fmem_limit(Thread *thread /* TODO */) {
   return ErrorCode::NOSYS;
 }
-orbis::SysResult orbis::sys_utc_to_localtime(Thread *thread /* TODO */) {
-  return ErrorCode::NOSYS;
+orbis::SysResult orbis::sys_utc_to_localtime(Thread *thread, int64_t time,
+                                             int64_t *localtime,
+                                             orbis::timesec *_sec,
+                                             int *_dst_sec) {
+  ORBIS_LOG_TRACE(__FUNCTION__, time, localtime, _sec, _dst_sec);
+  struct ::tm tp;
+  auto result = ::mktime(::localtime_r(&time, &tp));
+  if (auto e = uwrite(localtime, result); e != ErrorCode{})
+    return e;
+  uwrite(_sec, {});
+  uwrite(_dst_sec, 0);
+  return {};
 }
-orbis::SysResult orbis::sys_localtime_to_utc(Thread *thread /* TODO */) {
-  return ErrorCode::NOSYS;
+orbis::SysResult orbis::sys_localtime_to_utc(Thread *thread, int64_t time,
+                                             uint unk, int64_t *ptime,
+                                             orbis::timesec *_sec,
+                                             int *_dst_sec) {
+  ORBIS_LOG_TRACE(__FUNCTION__, time, unk, ptime, _sec, _dst_sec);
+  struct ::tm tp;
+  auto result = ::mktime(::gmtime_r(&time, &tp));
+  if (auto e = uwrite(ptime, result); e != ErrorCode{})
+    return e;
+  uwrite(_sec, {});
+  uwrite(_dst_sec, 0);
+  return {};
 }
 orbis::SysResult orbis::sys_set_uevt(Thread *thread /* TODO */) {
   return ErrorCode::NOSYS;