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/*************************************************
* Mutex Header File *
* (C) 1999-2007 Jack Lloyd *
*************************************************/
#ifndef BOTAN_MUTEX_H__
#define BOTAN_MUTEX_H__
#include <botan/exceptn.h>
namespace Botan {
/*************************************************
* Mutex Base Class *
*************************************************/
class BOTAN_DLL Mutex
{
public:
virtual void lock() = 0;
virtual void unlock() = 0;
virtual ~Mutex() {}
};
/*************************************************
* Mutex Factory *
*************************************************/
class BOTAN_DLL Mutex_Factory
{
public:
virtual Mutex* make() = 0;
virtual ~Mutex_Factory() {}
};
/*************************************************
* Mutex Holding Class *
*************************************************/
class BOTAN_DLL Mutex_Holder
{
public:
Mutex_Holder(Mutex* m) : mux(m)
{
if(!mux)
throw Invalid_Argument("Mutex_Holder: Argument was NULL");
mux->lock();
}
~Mutex_Holder() { mux->unlock(); }
private:
Mutex* mux;
};
/*************************************************
* Default Mutex Factory *
*************************************************/
class BOTAN_DLL Default_Mutex_Factory : public Mutex_Factory
{
public:
Mutex* make();
};
}
#endif
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