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#pragma once
#include "deimos/core/base.h"
#include "deimos/core/id_name.h"
namespace deimos
{
struct MemoryScope { uint32 id; };
class IAllocator
{
protected:
const MemoryScope m_scope;
public:
constexpr explicit IAllocator(MemoryScope scope) : m_scope{scope} {}
deimos_NO_COPY_MOVE(IAllocator);
virtual ~IAllocator() = default;
[[nodiscard]]
virtual void* Reallocate(
void* old_ptr, int64 old_size, int64 new_size,
const char* file = __builtin_FILE(), int32 line = __builtin_LINE()) = 0;
[[nodiscard]]
constexpr void* Allocate(
int64 new_size,
const char* file = __builtin_FILE(), int32 line = __builtin_LINE())
{
return Reallocate(nullptr, 0, new_size, file, line);
}
constexpr void Free(
void* old_ptr, int64 old_size,
const char* file = __builtin_FILE(), int32 line = __builtin_LINE())
{
(void)Reallocate(old_ptr, old_size, 0, file, line);
}
template<typename T, typename... Args>
T* New(
Args&&... args,
const char* file = __builtin_FILE(), int32 line = __builtin_LINE())
{
void* ptr = Allocate(sizeof(T), file, line);
return new(ptr) T(std::forward<Args>(args)...);
}
template<typename T>
void Delete(
T* t,
const char* file = __builtin_FILE(), int32 line = __builtin_LINE())
{
if constexpr (!kIsTriviallyDestructible<T>)
{
t->~T();
}
Free(t, sizeof(T), file, line);
}
};
class AllocatorApi
{
public:
static constexpr IdName kApiName{"deimos::AllocatorApi"};
IAllocator* system{};
};
} // namespace deimos
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