diff options
| author | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
|---|---|---|
| committer | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
| commit | 48540940b6c28bb4378abfeb500ec45a625b37b6 (patch) | |
| tree | 2ef294c0763e802f91d868bdef4229b6868527de /plugins/Dbx_tree/MREWSync.h | |
| parent | 5c350913f011e119127baeb32a6aedeb4f0d33bc (diff) | |
initial commit
git-svn-id: http://svn.miranda-ng.org/main/trunk@2 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/Dbx_tree/MREWSync.h')
| -rw-r--r-- | plugins/Dbx_tree/MREWSync.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/plugins/Dbx_tree/MREWSync.h b/plugins/Dbx_tree/MREWSync.h new file mode 100644 index 0000000000..2ffcbc08d7 --- /dev/null +++ b/plugins/Dbx_tree/MREWSync.h @@ -0,0 +1,55 @@ +/*
+
+dbx_tree: tree database driver for Miranda IM
+
+Copyright 2007-2010 Michael "Protogenes" Kunz,
+
+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.
+
+*/
+
+#pragma once
+
+#include <windows.h>
+#include "TLS.h"
+#include "stdint.h"
+
+class CMultiReadExclusiveWriteSynchronizer
+{
+private:
+ uint64_t volatile m_Sentinel;
+ HANDLE m_ReadSignal[2];
+ HANDLE m_WriteSignal;
+
+ volatile uint32_t m_Revision;
+ unsigned int m_WriterID;
+ unsigned int m_WriteRecursion;
+
+ CThreadLocalStorage<CMultiReadExclusiveWriteSynchronizer, unsigned> tls;
+
+public:
+ CMultiReadExclusiveWriteSynchronizer();
+ virtual ~CMultiReadExclusiveWriteSynchronizer();
+
+ void BeginRead();
+ void EndRead();
+ bool BeginWrite();
+ bool TryBeginWrite();
+ bool EndWrite();
+
+ unsigned int Waiting();
+ unsigned int WriteRecursionCount() {return m_WriteRecursion;};
+
+};
|