79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
|
#ifndef __API_MEMMGR_H
|
||
|
|
#define __API_MEMMGR_H
|
||
|
|
|
||
|
|
#include <bfc/dispatch.h>
|
||
|
|
#include <bfc/platform/types.h>
|
||
|
|
#include <new>
|
||
|
|
class NOVTABLE api_memmgr : public Dispatchable
|
||
|
|
{
|
||
|
|
protected:
|
||
|
|
api_memmgr() {}
|
||
|
|
~api_memmgr() {}
|
||
|
|
|
||
|
|
public:
|
||
|
|
void *sysMalloc(size_t size);
|
||
|
|
void sysFree(void *ptr);
|
||
|
|
void *sysRealloc(void *ptr, size_t newsize);
|
||
|
|
void sysMemChanged(void *ptr);
|
||
|
|
|
||
|
|
DISPATCH_CODES
|
||
|
|
{
|
||
|
|
API_MEMMGR_SYSMALLOC = 0,
|
||
|
|
API_MEMMGR_SYSFREE = 10,
|
||
|
|
API_MEMMGR_SYSREALLOC = 20,
|
||
|
|
API_MEMMGR_SYSMEMCHANGED = 30,
|
||
|
|
};
|
||
|
|
|
||
|
|
// Some helper templates to new and delete objects with the memory manager
|
||
|
|
// you need to be cautious with Delete() and inheritance, particularly if you're dealing with a base class
|
||
|
|
// as the pointer to the derived class might not equal to the pointer to the base class, particularly with multiple inheritance
|
||
|
|
// e.g. class C : public A, public B {}; C c; assert((A*)&c == (B*)&c); will likely fail
|
||
|
|
|
||
|
|
template <class Class>
|
||
|
|
void New(Class **obj)
|
||
|
|
{
|
||
|
|
size_t toAlloc = sizeof(Class);
|
||
|
|
void *mem = sysMalloc(toAlloc);
|
||
|
|
*obj = new (mem) Class;
|
||
|
|
}
|
||
|
|
|
||
|
|
template <class Class>
|
||
|
|
void Delete(Class *obj)
|
||
|
|
{
|
||
|
|
if (obj)
|
||
|
|
{
|
||
|
|
obj->~Class();
|
||
|
|
sysFree(obj);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
inline void *api_memmgr::sysMalloc(size_t size)
|
||
|
|
{
|
||
|
|
return _call(API_MEMMGR_SYSMALLOC, (void *)NULL, size);
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void api_memmgr::sysFree(void *ptr)
|
||
|
|
{
|
||
|
|
_voidcall(API_MEMMGR_SYSFREE, ptr);
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void *api_memmgr::sysRealloc(void *ptr, size_t newsize)
|
||
|
|
{
|
||
|
|
return _call(API_MEMMGR_SYSREALLOC, (void *)NULL, ptr, newsize);
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void api_memmgr::sysMemChanged(void *ptr)
|
||
|
|
{
|
||
|
|
_voidcall(API_MEMMGR_SYSMEMCHANGED, ptr);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// {000CF46E-4DF6-4a43-BBE7-40E7A3EA02ED}
|
||
|
|
static const GUID memMgrApiServiceGuid =
|
||
|
|
{ 0xcf46e, 0x4df6, 0x4a43, { 0xbb, 0xe7, 0x40, 0xe7, 0xa3, 0xea, 0x2, 0xed } };
|
||
|
|
|
||
|
|
extern api_memmgr *memmgrApi;
|
||
|
|
|
||
|
|
#endif
|