You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
155 lines
3.1 KiB
155 lines
3.1 KiB
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $NoKeywords: $
|
|
//=============================================================================//
|
|
|
|
#include <windows.h>
|
|
#include "threadhelpers.h"
|
|
#include "tier0/dbg.h"
|
|
|
|
|
|
// -------------------------------------------------------------------------------- //
|
|
// CCriticalSection implementation.
|
|
// -------------------------------------------------------------------------------- //
|
|
|
|
CCriticalSection::CCriticalSection()
|
|
{
|
|
Assert( sizeof( CRITICAL_SECTION ) == SIZEOF_CS );
|
|
|
|
#if defined( _DEBUG )
|
|
InitializeCriticalSection( (CRITICAL_SECTION*)&m_DeadlockProtect );
|
|
#endif
|
|
|
|
InitializeCriticalSection( (CRITICAL_SECTION*)&m_CS );
|
|
}
|
|
|
|
|
|
CCriticalSection::~CCriticalSection()
|
|
{
|
|
DeleteCriticalSection( (CRITICAL_SECTION*)&m_CS );
|
|
|
|
#if defined( _DEBUG )
|
|
DeleteCriticalSection( (CRITICAL_SECTION*)&m_DeadlockProtect );
|
|
#endif
|
|
}
|
|
|
|
|
|
|
|
void CCriticalSection::Lock()
|
|
{
|
|
#if defined( _DEBUG )
|
|
// Check if this one is already locked.
|
|
DWORD id = GetCurrentThreadId();
|
|
EnterCriticalSection( (CRITICAL_SECTION*)&m_DeadlockProtect );
|
|
Assert( m_Locks.Find( id ) == m_Locks.InvalidIndex() );
|
|
m_Locks.AddToTail( id );
|
|
LeaveCriticalSection( (CRITICAL_SECTION*)&m_DeadlockProtect );
|
|
#endif
|
|
|
|
EnterCriticalSection( (CRITICAL_SECTION*)&m_CS );
|
|
}
|
|
|
|
|
|
void CCriticalSection::Unlock()
|
|
{
|
|
#if defined( _DEBUG )
|
|
// Check if this one is already locked.
|
|
DWORD id = GetCurrentThreadId();
|
|
EnterCriticalSection( (CRITICAL_SECTION*)&m_DeadlockProtect );
|
|
int index = m_Locks.Find( id );
|
|
Assert( index != m_Locks.InvalidIndex() );
|
|
m_Locks.Remove( index );
|
|
LeaveCriticalSection( (CRITICAL_SECTION*)&m_DeadlockProtect );
|
|
#endif
|
|
|
|
LeaveCriticalSection( (CRITICAL_SECTION*)&m_CS );
|
|
}
|
|
|
|
|
|
|
|
// -------------------------------------------------------------------------------- //
|
|
// CCriticalSectionLock implementation.
|
|
// -------------------------------------------------------------------------------- //
|
|
|
|
CCriticalSectionLock::CCriticalSectionLock( CCriticalSection *pCS )
|
|
{
|
|
m_pCS = pCS;
|
|
m_bLocked = false;
|
|
}
|
|
|
|
|
|
CCriticalSectionLock::~CCriticalSectionLock()
|
|
{
|
|
if ( m_bLocked )
|
|
m_pCS->Unlock();
|
|
}
|
|
|
|
|
|
void CCriticalSectionLock::Lock()
|
|
{
|
|
Assert( !m_bLocked );
|
|
m_bLocked = true;
|
|
m_pCS->Lock();
|
|
}
|
|
|
|
|
|
void CCriticalSectionLock::Unlock()
|
|
{
|
|
Assert( m_bLocked );
|
|
m_bLocked = false;
|
|
m_pCS->Unlock();
|
|
}
|
|
|
|
|
|
// -------------------------------------------------------------------------------- //
|
|
// CEvent implementation.
|
|
// -------------------------------------------------------------------------------- //
|
|
|
|
CEvent::CEvent()
|
|
{
|
|
m_hEvent = NULL;
|
|
}
|
|
|
|
CEvent::~CEvent()
|
|
{
|
|
Term();
|
|
}
|
|
|
|
bool CEvent::Init( bool bManualReset, bool bInitialState )
|
|
{
|
|
Term();
|
|
|
|
m_hEvent = (void*)CreateEvent( NULL, bManualReset, bInitialState, NULL );
|
|
return (m_hEvent != NULL);
|
|
}
|
|
|
|
void CEvent::Term()
|
|
{
|
|
if ( m_hEvent )
|
|
{
|
|
CloseHandle( (HANDLE)m_hEvent );
|
|
m_hEvent = NULL;
|
|
}
|
|
}
|
|
|
|
void* CEvent::GetEventHandle() const
|
|
{
|
|
Assert( m_hEvent );
|
|
return m_hEvent;
|
|
}
|
|
|
|
bool CEvent::SetEvent()
|
|
{
|
|
Assert( m_hEvent );
|
|
return ::SetEvent( (HANDLE)m_hEvent ) != 0;
|
|
}
|
|
|
|
bool CEvent::ResetEvent()
|
|
{
|
|
Assert( m_hEvent );
|
|
return ::ResetEvent( (HANDLE)m_hEvent ) != 0;
|
|
}
|
|
|
|
|