зеркало из https://github.com/mozilla/gecko-dev.git
84 строки
1.8 KiB
C++
84 строки
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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/*lame but i need it, mjudge*/
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#include "xp_core.h"
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#include "xp_mem.h"
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#include "xp_mcom.h" /*for memcopy*/
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#include "memstrem.h"
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memstream::memstream()
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{
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mem = NULL;
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sizealloc = 0;
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frozen = FALSE;
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memloc = 0;
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buffer = DEFAULT_BUFFER_AMT;
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}
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memstream::memstream(int32 size, int32 bufferdelta /*= DEF*/)
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{
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mem = (char *)XP_ALLOC(size);
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sizealloc = size;
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frozen = FALSE;
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memloc = 0;
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buffer = bufferdelta;
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}
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int
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memstream::write(const char *t_input,int bytesize)
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{
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if (frozen)
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return 0; //frozen, cant write
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if ((bytesize + memloc) > sizealloc)
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{
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sizealloc = (bytesize + memloc) + buffer;
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mem = (char *)XP_REALLOC(mem, sizealloc);
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if (!mem)
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return 0;
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}
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XP_MEMCPY(mem + memloc,t_input , bytesize);
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memloc +=bytesize;
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return bytesize;
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}
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memstream::~memstream()
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{
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if (!frozen)
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clear();
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}
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void
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memstream::clear()
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{
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XP_FREEIF(mem);
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sizealloc = 0;
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memloc = 0;
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frozen = FALSE;
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}
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