From b0be2feebc89b7bfc4d11c3f501541d2d713b8ee Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Fri, 26 Jan 2018 16:01:40 +0300
Subject: [PATCH] Fix file stat on Windows.

GitOrigin-RevId: 2ca2bb1605af4e25f24d6c06c0aae5ffb8fe09e8
---
 td/telegram/cli.cpp              |  2 ++
 tdutils/td/utils/port/FileFd.cpp | 11 +++++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/td/telegram/cli.cpp b/td/telegram/cli.cpp
index 8adaa2fec..a7634175e 100644
--- a/td/telegram/cli.cpp
+++ b/td/telegram/cli.cpp
@@ -1528,6 +1528,8 @@ class CliClient final : public Actor {
       send_request(make_tl_object<td_api::optimizeStorage>(
           10000000, -1, -1, 0, std::vector<tl_object_ptr<td_api::FileType>>(), as_chat_ids(chat_ids, ','),
           as_chat_ids(exclude_chat_ids, ','), to_integer<int32>(chat_ids_limit)));
+    } else if (op == "clean_storage_default") {
+      send_request(make_tl_object<td_api::optimizeStorage>());
     } else if (op == "clean_storage") {
       std::vector<tl_object_ptr<td_api::FileType>> types;
       types.push_back(make_tl_object<td_api::fileTypeThumbnail>());
diff --git a/tdutils/td/utils/port/FileFd.cpp b/tdutils/td/utils/port/FileFd.cpp
index aad611e07..d82131e09 100644
--- a/tdutils/td/utils/port/FileFd.cpp
+++ b/tdutils/td/utils/port/FileFd.cpp
@@ -8,6 +8,8 @@
 
 #if TD_PORT_WINDOWS
 #include "td/utils/misc.h"  // for narrow_cast
+
+#include "td/utils/port/Stat.h"
 #include "td/utils/port/wstring_convert.h"
 #endif
 
@@ -399,6 +401,11 @@ int64 FileFd::get_size() {
   return stat().size_;
 }
 
+static uint64 filetime_to_unix_time_nsec(LONGLONG filetime) {
+  const auto FILETIME_UNIX_TIME_DIFF = 116444736000000000ll;
+  return static_cast<uint64>((filetime - FILETIME_UNIX_TIME_DIFF) * 100);
+}
+
 Stat FileFd::stat() {
   CHECK(!empty());
 #if TD_PORT_POSIX
@@ -412,8 +419,8 @@ Stat FileFd::stat() {
     auto error = OS_ERROR("Stat failed");
     LOG(FATAL) << error;
   }
-  res.atime_nsec_ = basic_info.LastAccessTime.QuadPart * 100;
-  res.mtime_nsec_ = basic_info.LastWriteTime.QuadPart * 100;
+  res.atime_nsec_ = filetime_to_unix_time_nsec(basic_info.LastAccessTime.QuadPart);
+  res.mtime_nsec_ = filetime_to_unix_time_nsec(basic_info.LastWriteTime.QuadPart);
   res.is_dir_ = (basic_info.FileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
   res.is_reg_ = true;