67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
/**
|
|
* PANDA 3D SOFTWARE
|
|
* Copyright (c) Carnegie Mellon University. All rights reserved.
|
|
*
|
|
* All use of this software is subject to the terms of the revised BSD
|
|
* license. You should have received a copy of this license along
|
|
* with this source code in a file named "LICENSE."
|
|
*
|
|
* @file bufferContextChain.cxx
|
|
* @author drose
|
|
* @date 2006-03-16
|
|
*/
|
|
|
|
#include "bufferContextChain.h"
|
|
#include "bufferContext.h"
|
|
#include "indent.h"
|
|
|
|
/**
|
|
* Returns the first BufferContext object stored in the tracker. You can walk
|
|
* through the entire list of objects stored on the tracker by calling
|
|
* get_next() on each returned object, until the return value is NULL.
|
|
*/
|
|
BufferContext *BufferContextChain::
|
|
get_first() {
|
|
// This method is declared non-inline so we can include bufferContext.h,
|
|
// which is necessary for proper downcasting of the _next pointer.
|
|
if (_next == this) {
|
|
return nullptr;
|
|
}
|
|
return (BufferContext *)_next;
|
|
}
|
|
|
|
/**
|
|
* Moves all of the BufferContexts from the other tracker onto this one.
|
|
*/
|
|
void BufferContextChain::
|
|
take_from(BufferContextChain &other) {
|
|
_total_size += other._total_size;
|
|
_count += other._count;
|
|
other._total_size = 0;
|
|
other._count = 0;
|
|
|
|
LinkedListNode *llnode = other._next;
|
|
while (llnode != &other) {
|
|
nassertv(((BufferContext *)llnode)->_owning_chain == &other);
|
|
((BufferContext *)llnode)->_owning_chain = this;
|
|
llnode = ((BufferContext *)llnode)->_next;
|
|
}
|
|
|
|
take_list_from(&other);
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
void BufferContextChain::
|
|
write(std::ostream &out, int indent_level) const {
|
|
indent(out, indent_level)
|
|
<< _count << " objects, consuming " << _total_size << " bytes:\n";
|
|
|
|
LinkedListNode *llnode = _next;
|
|
while (llnode != this) {
|
|
((BufferContext *)llnode)->write(out, indent_level + 2);
|
|
llnode = ((BufferContext *)llnode)->_next;
|
|
}
|
|
}
|