extensions/updater/MemoryDownloader.cpp
changeset 2562 af4b3f9a8168
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/extensions/updater/MemoryDownloader.cpp	Mon Feb 02 15:41:25 2009 -0500
     1.3 @@ -0,0 +1,85 @@
     1.4 +/**
     1.5 + * vim: set ts=4 :
     1.6 + * =============================================================================
     1.7 + * SourceMod Updater Extension
     1.8 + * Copyright (C) 2004-2009 AlliedModders LLC.  All rights reserved.
     1.9 + * =============================================================================
    1.10 + *
    1.11 + * This program is free software; you can redistribute it and/or modify it under
    1.12 + * the terms of the GNU General Public License, version 3.0, as published by the
    1.13 + * Free Software Foundation.
    1.14 + * 
    1.15 + * This program is distributed in the hope that it will be useful, but WITHOUT
    1.16 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    1.17 + * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
    1.18 + * details.
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License along with
    1.21 + * this program.  If not, see <http://www.gnu.org/licenses/>.
    1.22 + *
    1.23 + * As a special exception, AlliedModders LLC gives you permission to link the
    1.24 + * code of this program (as well as its derivative works) to "Half-Life 2," the
    1.25 + * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
    1.26 + * by the Valve Corporation.  You must obey the GNU General Public License in
    1.27 + * all respects for all other code used.  Additionally, AlliedModders LLC grants
    1.28 + * this exception to all derivative works.  AlliedModders LLC defines further
    1.29 + * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
    1.30 + * or <http://www.sourcemod.net/license.php>.
    1.31 + *
    1.32 + * Version: $Id$
    1.33 + */
    1.34 +
    1.35 +#include <assert.h>
    1.36 +#include <string.h>
    1.37 +#include <stdlib.h>
    1.38 +#include "MemoryDownloader.h"
    1.39 +
    1.40 +using namespace SourceMod;
    1.41 +
    1.42 +MemoryDownloader::MemoryDownloader() : buffer(NULL), bufsize(0), bufpos(0)
    1.43 +{
    1.44 +}
    1.45 +
    1.46 +MemoryDownloader::~MemoryDownloader()
    1.47 +{
    1.48 +	free(buffer);
    1.49 +}
    1.50 +
    1.51 +DownloadWriteStatus MemoryDownloader::OnDownloadWrite(IWebTransfer *session,
    1.52 +													  void *userdata,
    1.53 +													  void *ptr,
    1.54 +													  size_t size,
    1.55 +													  size_t nmemb)
    1.56 +{
    1.57 +	size_t total = size * nmemb;
    1.58 +
    1.59 +	if (bufpos + total > bufsize)
    1.60 +	{
    1.61 +		size_t rem = (bufpos + total) - bufsize;
    1.62 +		bufsize += rem + (rem / 2);
    1.63 +		buffer = (char *)realloc(buffer, bufsize);
    1.64 +	}
    1.65 +
    1.66 +	assert(bufpos + total <= bufsize);
    1.67 +
    1.68 +	memcpy(&buffer[bufpos], ptr, total);
    1.69 +	bufpos += total;
    1.70 +
    1.71 +	return DownloadWrite_Okay;
    1.72 +}
    1.73 +
    1.74 +void MemoryDownloader::Reset()
    1.75 +{
    1.76 +	bufpos = 0;
    1.77 +}
    1.78 +
    1.79 +char *MemoryDownloader::GetBuffer()
    1.80 +{
    1.81 +	return buffer;
    1.82 +}
    1.83 +
    1.84 +size_t MemoryDownloader::GetSize()
    1.85 +{
    1.86 +	return bufpos;
    1.87 +}
    1.88 +