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| author | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
|---|---|---|
| committer | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
| commit | 39ed87570bdb2f86969d4be821c94b722dc71179 (patch) | |
| tree | abc53757f75f40c80278e87650ea92808274aa59 /sp/src/utils/vmpi/threadhelpers.h | |
| download | source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.tar.xz source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.zip | |
First version of the SOurce SDK 2013
Diffstat (limited to 'sp/src/utils/vmpi/threadhelpers.h')
| -rw-r--r-- | sp/src/utils/vmpi/threadhelpers.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/sp/src/utils/vmpi/threadhelpers.h b/sp/src/utils/vmpi/threadhelpers.h new file mode 100644 index 00000000..1e955a5e --- /dev/null +++ b/sp/src/utils/vmpi/threadhelpers.h @@ -0,0 +1,110 @@ +//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef THREADHELPERS_H
+#define THREADHELPERS_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+
+#include "tier1/utllinkedlist.h"
+
+
+#define SIZEOF_CS 24 // sizeof( CRITICAL_SECTION )
+
+
+class CCriticalSection
+{
+public:
+ CCriticalSection();
+ ~CCriticalSection();
+
+
+protected:
+
+ friend class CCriticalSectionLock;
+
+ void Lock();
+ void Unlock();
+
+
+public:
+ char m_CS[SIZEOF_CS];
+
+ // Used to protect against deadlock in debug mode.
+//#if defined( _DEBUG )
+ CUtlLinkedList<unsigned long,int> m_Locks;
+ char m_DeadlockProtect[SIZEOF_CS];
+//#endif
+};
+
+
+// Use this to lock a critical section.
+class CCriticalSectionLock
+{
+public:
+ CCriticalSectionLock( CCriticalSection *pCS );
+ ~CCriticalSectionLock();
+ void Lock();
+ void Unlock();
+
+private:
+ CCriticalSection *m_pCS;
+ bool m_bLocked;
+};
+
+
+template< class T >
+class CCriticalSectionData : private CCriticalSection
+{
+public:
+ // You only have access to the data between Lock() and Unlock().
+ T* Lock()
+ {
+ CCriticalSection::Lock();
+ return &m_Data;
+ }
+
+ void Unlock()
+ {
+ CCriticalSection::Unlock();
+ }
+
+private:
+ T m_Data;
+};
+
+
+
+// ------------------------------------------------------------------------------------------------ //
+// CEvent.
+// ------------------------------------------------------------------------------------------------ //
+class CEvent
+{
+public:
+ CEvent();
+ ~CEvent();
+
+ bool Init( bool bManualReset, bool bInitialState );
+ void Term();
+
+ void* GetEventHandle() const;
+
+ // Signal the event.
+ bool SetEvent();
+
+ // Unset the event's signalled status.
+ bool ResetEvent();
+
+
+private:
+ void *m_hEvent;
+};
+
+
+#endif // THREADHELPERS_H
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