80c014a2b3c6ff23b18c756cca756dfa7a83f894
[pdfium.git] / core / src / fxcrt / fx_basic_plex.cpp
1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4  
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include "../../include/fxcrt/fx_basic.h"
8 #include "plex.h"
9 CFX_Plex* CFX_Plex::Create(IFX_Allocator* pAllocator, CFX_Plex*& pHead, FX_DWORD nMax, FX_DWORD cbElement)
10 {
11     CFX_Plex* p = (CFX_Plex*)FX_Allocator_Alloc(pAllocator, FX_BYTE, sizeof(CFX_Plex) + nMax * cbElement);
12     if (!p) {
13         return NULL;
14     }
15     p->pNext = pHead;
16     pHead = p;
17     return p;
18 }
19 void CFX_Plex::FreeDataChain(IFX_Allocator* pAllocator)
20 {
21     CFX_Plex* p = this;
22     while (p != NULL) {
23         FX_BYTE* bytes = (FX_BYTE*) p;
24         CFX_Plex* pNext = p->pNext;
25         FX_Allocator_Free(pAllocator, bytes);
26         p = pNext;
27     }
28 }