From c55bee1961b51c61266e38eda13132e0ef7ae11a Mon Sep 17 00:00:00 2001
From: George Hazan <ghazan@miranda.im>
Date: Sat, 1 Feb 2020 15:51:23 +0300
Subject: attempt to fix #2139

---
 src/mir_core/src/locks.cpp      | 46 +++++++++++++++++++++++++++++++++++++++++
 src/mir_core/src/mir_core.def   |  5 +++++
 src/mir_core/src/mir_core64.def |  5 +++++
 3 files changed, 56 insertions(+)
 create mode 100644 src/mir_core/src/locks.cpp

(limited to 'src')

diff --git a/src/mir_core/src/locks.cpp b/src/mir_core/src/locks.cpp
new file mode 100644
index 0000000000..2a53d0051a
--- /dev/null
+++ b/src/mir_core/src/locks.cpp
@@ -0,0 +1,46 @@
+/*
+
+Miranda NG: the free IM client for Microsoft* Windows*
+
+Copyright (C) 2012-20 Miranda NG team (https://miranda-ng.org),
+Copyright (c) 2000-12 Miranda IM project,
+all portions of this codebase are copyrighted to the people
+listed in contributors.txt.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+*/
+
+#include "stdafx.h"
+
+mir_cs::mir_cs()
+{
+	::InitializeCriticalSection(&m_cs);
+}
+
+mir_cs::~mir_cs()
+{
+	::DeleteCriticalSection(&m_cs);
+}
+
+void mir_cs::Lock()
+{
+	while (!::TryEnterCriticalSection(&m_cs))
+		::SleepEx(50, TRUE);
+}
+
+void mir_cs::Unlock()
+{
+	::LeaveCriticalSection(&m_cs);
+}
diff --git a/src/mir_core/src/mir_core.def b/src/mir_core/src/mir_core.def
index 7254c631aa..d233b605ec 100644
--- a/src/mir_core/src/mir_core.def
+++ b/src/mir_core/src/mir_core.def
@@ -1452,3 +1452,8 @@ XmlGetChildText @1645
 ?RemoveControl@CDlgBase@@IAEXPAVCCtrlBase@@@Z @1667 NONAME
 ?assign@MBinBuffer@@QAEXPAXI@Z @1668 NONAME
 ?GetHwnd@CTimer@@QBEPAUHWND__@@XZ @1669 NONAME
+??0MNonCopyable@@QAE@XZ @1670 NONAME
+??0mir_cs@@QAE@XZ @1671 NONAME
+??1mir_cs@@QAE@XZ @1672 NONAME
+?Lock@mir_cs@@QAEXXZ @1673 NONAME
+?Unlock@mir_cs@@QAEXXZ @1674 NONAME
diff --git a/src/mir_core/src/mir_core64.def b/src/mir_core/src/mir_core64.def
index 1aca6aa620..b589947f72 100644
--- a/src/mir_core/src/mir_core64.def
+++ b/src/mir_core/src/mir_core64.def
@@ -1452,3 +1452,8 @@ XmlGetChildText @1645
 ?RemoveControl@CDlgBase@@IEAAXPEAVCCtrlBase@@@Z @1667 NONAME
 ?assign@MBinBuffer@@QEAAXPEAX_K@Z @1668 NONAME
 ?GetHwnd@CTimer@@QEBAPEAUHWND__@@XZ @1669 NONAME
+??0MNonCopyable@@QEAA@XZ @1670 NONAME
+??0mir_cs@@QEAA@XZ @1671 NONAME
+??1mir_cs@@QEAA@XZ @1672 NONAME
+?Lock@mir_cs@@QEAAXXZ @1673 NONAME
+?Unlock@mir_cs@@QEAAXXZ @1674 NONAME
-- 
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