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/* Copyright (c) <2003-2011> <Julio Jerez, Newton Game Dynamics>
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source distribution.
*/
#ifndef __dgRef__
#define __dgRef__
#include "dgStdafx.h"
#include "dgCRC.h"
#include "dgDebug.h"
#include "dgMemory.h"
struct dgRefFlags {
dgRefFlags();
inline dgInt32 operator = (dgInt32 val);
dgUnsigned8 m_alive;
dgUnsigned8 m_userFlag0;
dgUnsigned8 m_userFlag1;
dgUnsigned8 m_userFlag2;
// dgUnsigned32 m_userFlag3 : 1;
// dgUnsigned32 m_userFlag4 : 1;
// dgUnsigned32 m_userFlag5 : 1;
// dgUnsigned32 m_userFlag6 : 1;
dgUnsigned32 m_ref;
};
class dgRef: public dgRefFlags {
public:
dgRef();
dgRef(const char *name);
dgRef(dgUnsigned32 idArg);
dgRef(const dgRef &Clone);
dgRef *AddRef() ;
dgInt32 Release();
dgInt32 GetRefCount() const;
DG_CLASS_ALLOCATOR(allocator)
virtual dgRef *CreateClone() const;
bool GetUserFlag0() const;
bool GetUserFlag1() const;
void SetUserFlag0(bool flags);
void SetUserFlag1(bool flags);
bool IsAlive() const;
virtual void Kill();
virtual void Unkill();
const char *GetName() const;
dgUnsigned32 GetNameID() const;
inline void SetNameID(dgUnsigned32 newID);
virtual inline void SetName(const char *name);
void AttachRef(dgRef **oldRef, dgRef *newRef);
static dgUnsigned32 GetRttiType();
protected:
virtual ~dgRef();
private:
dgUnsigned32 m_id;
};
inline dgRefFlags::dgRefFlags() {
*this = 0;
m_alive = true;
m_ref = 1;
}
inline dgInt32 dgRefFlags::operator = (dgInt32 val) {
dgInt32 *ptr;
ptr = &(*(dgInt32 *)this);
*ptr = val;
return val;
}
inline dgRef::dgRef() {
m_id = 0;
}
inline dgRef::dgRef(const char *name) {
SetName(name);
}
inline dgRef::dgRef(dgUnsigned32 idArg) {
SetNameID(idArg);
}
inline dgRef::dgRef(const dgRef &Clone) {
m_id = Clone.m_id;
}
inline dgRef::~dgRef() {
}
inline dgRef *dgRef::AddRef() {
m_ref ++;
NEWTON_ASSERT(m_ref < ((1 << 24) - 1));
return this;
}
inline dgInt32 dgRef::Release() {
m_ref --;
if (m_ref) {
return dgInt32(m_ref);
}
delete this;
return 0;
}
inline dgRef *dgRef::CreateClone() const {
NEWTON_ASSERT(0);
return NULL;
}
inline bool dgRef::GetUserFlag0() const {
return m_userFlag0 ? true : false;
}
inline bool dgRef::GetUserFlag1() const {
return m_userFlag1 ? true : false;
}
inline void dgRef::SetUserFlag0(bool flags) {
m_userFlag0 = dgUnsigned8(flags);
}
inline void dgRef::SetUserFlag1(bool flags) {
m_userFlag1 = dgUnsigned8(flags);
}
inline bool dgRef::IsAlive() const {
return m_alive ? true : false;
}
inline void dgRef::Kill() {
m_alive = false;
}
inline void dgRef::Unkill() {
m_alive = true;
}
inline void dgRef::SetNameID(dgUnsigned32 newID) {
m_id = newID;
}
inline dgUnsigned32 dgRef::GetNameID() const {
return m_id;
}
inline void dgRef::SetName(const char *name) {
SetNameID(0);
if (name) {
SetNameID(dgCRC(name));
}
}
inline const char *dgRef::GetName() const {
return dgInverseCRC(GetNameID());
}
inline dgInt32 dgRef::GetRefCount() const {
return dgInt32(m_ref);
}
#endif
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