T2Allocator.h

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#pragma once
#include "Toshi/Typedefs.h"
 
TOSHI_NAMESPACE_START
 
class TOSHI_API T2Allocator
{
public:
    virtual void*  Malloc( size_t size, size_t alignment )    = 0;
    virtual void*  Malloc( size_t size )                      = 0;
    virtual void   Free( void* ptr )                          = 0;
    virtual TBOOL  CanAllocate( size_t size ) const           = 0;
    virtual void*  TryMalloc( size_t size, size_t alignment ) = 0;
    virtual void*  TryMalloc( size_t size )                   = 0;
    virtual size_t GetUsedSize() const                        = 0;
    virtual size_t GetCapacity() const                        = 0;
 
    template <class T, class... Args>
    T* New( Args&&... args )
    {
        void* mem    = Malloc( sizeof( T ) );
        T*    object = new ( mem ) T( std::forward<Args>( args )... );
        return object;
    }
 
    template <class T>
    void Delete( T* ptr )
    {
        ptr->~T();
        Free( ptr );
    }
};
 
class TOSHI_API T2GlobalAllocator : public T2Allocator
{
public:
    virtual void*  Malloc( size_t size, size_t alignment ) override;
    virtual void*  Malloc( size_t size ) override;
    virtual void   Free( void* ptr ) override;
    virtual TBOOL  CanAllocate( size_t size ) const override;
    virtual void*  TryMalloc( size_t size, size_t alignment ) override;
    virtual void*  TryMalloc( size_t size ) override;
    virtual size_t GetUsedSize() const override;
    virtual size_t GetCapacity() const override;
};
 
extern T2GlobalAllocator ms_oGlobalAllocator;
 
TFORCEINLINE T2Allocator* GetGlobalAllocator()
{
    return &ms_oGlobalAllocator;
}
 
TOSHI_NAMESPACE_END