58 lines
3.3 KiB
C++
58 lines
3.3 KiB
C++
/**************************************************************************************/
|
|
/* */
|
|
/* Visualization Library */
|
|
/* http://visualizationlibrary.org */
|
|
/* */
|
|
/* Copyright (c) 2005-2020, Michele Bosi */
|
|
/* All rights reserved. */
|
|
/* */
|
|
/* Redistribution and use in source and binary forms, with or without modification, */
|
|
/* are permitted provided that the following conditions are met: */
|
|
/* */
|
|
/* - Redistributions of source code must retain the above copyright notice, this */
|
|
/* list of conditions and the following disclaimer. */
|
|
/* */
|
|
/* - Redistributions in binary form must reproduce the above copyright notice, this */
|
|
/* list of conditions and the following disclaimer in the documentation and/or */
|
|
/* other materials provided with the distribution. */
|
|
/* */
|
|
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND */
|
|
/* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED */
|
|
/* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
|
|
/* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR */
|
|
/* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */
|
|
/* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; */
|
|
/* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON */
|
|
/* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
|
|
/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */
|
|
/* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
|
|
/* */
|
|
/**************************************************************************************/
|
|
|
|
#ifndef IMutex_INCLUDE_ONCE
|
|
#define IMutex_INCLUDE_ONCE
|
|
|
|
namespace vl
|
|
{
|
|
//------------------------------------------------------------------------------
|
|
// IMutex
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
* An interface to implement simple platform-independent mutexes used to protect critical sections.
|
|
* /sa vl::Object::setRefCountMutex(), vl::Log::setLogMutex().
|
|
*/
|
|
class IMutex
|
|
{
|
|
public:
|
|
//! Locks the mutex.
|
|
virtual void lock() = 0;
|
|
|
|
//! Unlocks the mutex.
|
|
virtual void unlock() = 0;
|
|
|
|
//! Returns 1 if locked, 0 if non locked, -1 if unknown.
|
|
virtual int isLocked() const = 0;
|
|
};
|
|
}
|
|
#endif
|