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# MemoryHook Class Reference

This class provides a wrapper around the various possible malloc schemes Panda might employ. More...

Inheritance diagram for MemoryHook:

## Detailed Description

This class provides a wrapper around the various possible malloc schemes Panda might employ.

It also exists to allow the MemoryUsage class in Panda to insert callback hooks to track the size of allocated pointers.

The PANDA_MALLOC_* and PANDA_FREE_* macros are defined to vector through through this class (except in production builds) to facilitate that. Every memory allocation call in Panda should therefore use these macros instead of direct calls to malloc or free. (C++ new and delete operators may be employed for classes which inherit from MemoryBase; otherwise, use the PANDA_MALLOC macros.)

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