Panda3D
Static Public Member Functions

NeverFreeMemory Class Reference

This class is used to allocate bytes of memory from a pool that is never intended to be freed. More...

List of all members.

Static Public Member Functions

static unsigned int getTotalAlloc ()
 Returns the total number of bytes consumed by all the pages allocated internally by this object.
static unsigned int getTotalUnused ()
 Returns the difference between get_total_alloc() and get_total_used().
static unsigned int getTotalUsed ()
 Returns the total number of bytes requested by the application in calls to NeverFreeMemory.alloc().

Detailed Description

This class is used to allocate bytes of memory from a pool that is never intended to be freed.

It is particularly useful to support DeletedChain, which allocates memory in just such a fashion.

When it is known that memory will not be freed, it is preferable to use this instead of the standard malloc() (or global_operator_new()) call, since this will help reduce fragmentation problems in the dynamic heap. Also, memory allocated from here will exhibit less wasted space.


Member Function Documentation

static unsigned int getTotalAlloc ( ) [static]

Returns the total number of bytes consumed by all the pages allocated internally by this object.

static unsigned int getTotalUnused ( ) [static]

Returns the difference between get_total_alloc() and get_total_used().

This represents bytes in allocated pages that have not (yet) been used by the application.

static unsigned int getTotalUsed ( ) [static]

Returns the total number of bytes requested by the application in calls to NeverFreeMemory.alloc().

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