PhysicsFS allocation function pointers.
Defined in <physfs.h>
typedef struct PHYSFS_Allocator
{
int (*Init)(void); /**< Initialize. Can be NULL. Zero on failure. */
void (*Deinit)(void); /**< Deinitialize your allocator. Can be NULL. */
void *(*Malloc)(PHYSFS_uint64); /**< Allocate like malloc(). */
void *(*Realloc)(void *, PHYSFS_uint64); /**< Reallocate like realloc(). */
void (*Free)(void *); /**< Free memory from Malloc or Realloc. */
} PHYSFS_Allocator;(This is for limited, hardcore use. If you don't immediately see a need for it, you can probably ignore this forever.)
You create one of these structures for use with PHYSFS_setAllocator. Allocators are assumed to be reentrant by the caller; please mutex accordingly.
Allocations are always discussed in 64-bits, for future expansion...we're on the cusp of a 64-bit transition, and we'll probably be allocating 6 gigabytes like it's nothing sooner or later, and I don't want to change this again at that point. If you're on a 32-bit platform and have to downcast, it's okay to return NULL if the allocation is greater than 4 gigabytes, since you'd have to do so anyhow.
This struct is available since PhysicsFS 2.0.0.