#ifndef _SECURITY_SECRUNTIME_H_
#define _SECURITY_SECRUNTIME_H_
#include <CoreFoundation/CFRuntime.h>
#include <new>
#include <Security/SecCFTypes.h>
namespace Security
{
namespace KeychainCore
{
#define SECCFFUNCTIONS(OBJTYPE, APIPTR, ERRCODE) \
\
void *operator new(size_t size) throw(std::bad_alloc) \
{ return SecCFObject::allocate(size, gTypes().OBJTYPE.typeID); } \
\
operator APIPTR() const \
{ return (APIPTR)(this->operator CFTypeRef()); } \
\
APIPTR handle(bool retain = true) \
{ return (APIPTR)SecCFObject::handle(retain); } \
\
static OBJTYPE *required(APIPTR ptr) \
{ return static_cast<OBJTYPE *>(SecCFObject::required(ptr, ERRCODE)); } \
\
static OBJTYPE *optional(APIPTR ptr) \
{ return static_cast<OBJTYPE *>(SecCFObject::optional(ptr)); }
#define SECALIGNUP(SIZE, ALIGNMENT) (((SIZE - 1) & ~(ALIGNMENT - 1)) + ALIGNMENT)
struct SecRuntimeBase: CFRuntimeBase
{
bool isNew;
};
class SecCFObject
{
private:
void *operator new(size_t) throw(std::bad_alloc);
static const size_t kAlignedRuntimeSize = SECALIGNUP(sizeof(SecRuntimeBase), 16);
public:
bool isNew()
{
SecRuntimeBase *base = reinterpret_cast<SecRuntimeBase *>(reinterpret_cast<uint8_t *>(this) - kAlignedRuntimeSize);
bool isNew = base->isNew;
base->isNew = false;
return isNew;
}
static SecCFObject *optional(CFTypeRef) throw();
static SecCFObject *required(CFTypeRef, OSStatus error);
static void *allocate(size_t size, CFTypeID typeID) throw(std::bad_alloc);
virtual ~SecCFObject() throw();
void operator delete(void *object) throw();
operator CFTypeRef() const throw()
{
return reinterpret_cast<CFTypeRef>(reinterpret_cast<const uint8_t *>(this) - kAlignedRuntimeSize);
}
CFTypeRef handle(bool retain = true) throw();
virtual bool equal(SecCFObject &other);
virtual CFHashCode hash();
virtual CFStringRef copyFormattingDesc(CFDictionaryRef dict);
virtual CFStringRef copyDebugDesc();
};
class SecPointerBase
{
public:
SecPointerBase() : ptr(NULL)
{}
SecPointerBase(const SecPointerBase& p)
{
if (p.ptr)
CFRetain(p.ptr->operator CFTypeRef());
ptr = p.ptr;
}
SecPointerBase(SecCFObject *p)
{
if (p && !p->isNew())
CFRetain(p->operator CFTypeRef());
ptr = p;
}
~SecPointerBase()
{
if (ptr)
CFRelease(ptr->operator CFTypeRef());
}
SecPointerBase& operator = (const SecPointerBase& p)
{
if (p.ptr)
CFRetain(p.ptr->operator CFTypeRef());
if (ptr)
CFRelease(ptr->operator CFTypeRef());
ptr = p.ptr;
return *this;
}
protected:
void assign(SecCFObject * p)
{
if (p && !p->isNew())
CFRetain(p->operator CFTypeRef());
if (ptr)
CFRelease(ptr->operator CFTypeRef());
ptr = p;
}
SecCFObject *ptr;
};
template <class T>
class SecPointer : public SecPointerBase
{
public:
SecPointer() : SecPointerBase() {}
SecPointer(const SecPointer& p) : SecPointerBase(p) {}
SecPointer(T *p): SecPointerBase(p) {}
SecPointer &operator =(T *p) { this->assign(p); return *this; }
T* get () const { return static_cast<T*>(ptr); } operator T * () const { return static_cast<T*>(ptr); }
T * operator -> () const { return static_cast<T*>(ptr); }
T & operator * () const { return *static_cast<T*>(ptr); }
};
template <class T>
bool operator <(const SecPointer<T> &r1, const SecPointer<T> &r2)
{
T *p1 = r1.get(), *p2 = r2.get();
return p1 && p2 ? *p1 < *p2 : p1 < p2;
}
template <class T>
bool operator ==(const SecPointer<T> &r1, const SecPointer<T> &r2)
{
T *p1 = r1.get(), *p2 = r2.get();
return p1 && p2 ? *p1 == *p2 : p1 == p2;
}
template <class T>
bool operator !=(const SecPointer<T> &r1, const SecPointer<T> &r2)
{
T *p1 = r1.get(), *p2 = r2.get();
return p1 && p2 ? *p1 != *p2 : p1 != p2;
}
}
}
#endif // !_SECURITY_SECRUNTIME_H_