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#ifndef VISUAL_THREAD_H
#define VISUAL_THREAD_H
// Copyright (c) 2000, 2001, 2002, 2003 by David Scherer and others.
// See the file license.txt for complete license terms.
// See the file authors.txt for a complete list of contributors.
// thread. General purpose synchronization helpers.
namespace visual {
template <class syncObject>
class lock
{
private:
syncObject& obj;
public:
lock(syncObject& _obj) : obj(_obj) { _obj.sync_lock(); }
~lock() { obj.sync_unlock(); }
private: // not implemented by design, to be noncopyable
lock(const lock&);
void operator=(const lock&);
};
template <class syncObject>
class counted_lock
{
syncObject& obj;
public:
inline counted_lock(syncObject& _obj) : obj(_obj) { _obj.count_lock(); }
inline ~counted_lock() { obj.sync_unlock(); }
private: // not implemented by design, to be noncopyable
counted_lock(const counted_lock&);
void operator=(const counted_lock&);
};
template <class dataObject, class syncObject>
class thread_safe
{
private:
thread_safe();
dataObject data;
syncObject sync;
public:
thread_safe(const dataObject& _data) : data(_data), sync() {}
inline void operator=(const dataObject& _data)
{
lock<syncObject> L(sync);
data = _data;
}
operator dataObject()
{
lock<syncObject> L(sync);
return data;
}
};
} // !namespace visual
#endif
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