diff options
Diffstat (limited to 'indra/llcommon/llsdserialize.cpp')
| -rw-r--r-- | indra/llcommon/llsdserialize.cpp | 110 |
1 files changed, 74 insertions, 36 deletions
diff --git a/indra/llcommon/llsdserialize.cpp b/indra/llcommon/llsdserialize.cpp index 3054bb8d09..f3cbfab77a 100644 --- a/indra/llcommon/llsdserialize.cpp +++ b/indra/llcommon/llsdserialize.cpp @@ -4,31 +4,25 @@ * @date 2006-03-05 * @brief Implementation of LLSD parsers and formatters * - * $LicenseInfo:firstyear=2006&license=viewergpl$ - * - * Copyright (c) 2006-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2006&license=viewerlgpl$ * Second Life Viewer Source Code - * The source code in this file ("Source Code") is provided by Linden Lab - * to you under the terms of the GNU General Public License, version 2.0 - * ("GPL"), unless you have obtained a separate licensing agreement - * ("Other License"), formally executed by you and Linden Lab. Terms of - * the GPL can be found in doc/GPL-license.txt in this distribution, or - * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * Copyright (C) 2010, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. * - * There are special exceptions to the terms and conditions of the GPL as - * it is applied to this Source Code. View the full text of the exception - * in the file doc/FLOSS-exception.txt in this software distribution, or - * online at - * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. * - * By copying, modifying or distributing this software, you acknowledge - * that you have read and understood your obligations described above, - * and agree to abide by those obligations. + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -83,7 +77,7 @@ void LLSDSerialize::serialize(const LLSD& sd, std::ostream& str, ELLSD_Serialize break; default: - llwarns << "serialize request for unkown ELLSD_Serialize" << llendl; + llwarns << "serialize request for unknown ELLSD_Serialize" << llendl; } if (f.notNull()) @@ -2004,7 +1998,9 @@ std::string zip_llsd(LLSD& data) { std::stringstream llsd_strm; - LLSDSerialize::serialize(data, llsd_strm, LLSDSerialize::LLSD_BINARY); + LLSDSerialize::toBinary(data, llsd_strm); + + const U32 CHUNK = 65536; z_stream strm; strm.zalloc = Z_NULL; @@ -2020,24 +2016,57 @@ std::string zip_llsd(LLSD& data) std::string source = llsd_strm.str(); + U8 out[CHUNK]; + strm.avail_in = source.size(); strm.next_in = (U8*) source.data(); - U8* output = new U8[strm.avail_in]; - strm.avail_out = strm.avail_in; - strm.next_out = output; - ret = deflate(&strm, Z_FINISH); - if (ret != Z_STREAM_END) + U8* output = NULL; + + U32 cur_size = 0; + + U32 have = 0; + + do { - delete [] output; - llwarns << "Failed to compress LLSD block." << llendl; - return std::string(); + strm.avail_out = CHUNK; + strm.next_out = out; + + ret = deflate(&strm, Z_FINISH); + if (ret == Z_OK || ret == Z_STREAM_END) + { //copy result into output + if (strm.avail_out >= CHUNK) + { + llerrs << "WTF?" << llendl; + } + + have = CHUNK-strm.avail_out; + output = (U8*) realloc(output, cur_size+have); + memcpy(output+cur_size, out, have); + cur_size += have; + } + else + { + free(output); + llwarns << "Failed to compress LLSD block." << llendl; + return std::string(); + } } + while (ret == Z_OK); - std::string::size_type size = source.size()-strm.avail_out; + std::string::size_type size = cur_size; std::string result((char*) output, size); deflateEnd(&strm); - delete [] output; + free(output); + +#if 0 //verify results work with unzip_llsd + std::istringstream test(result); + LLSD test_sd; + if (!unzip_llsd(test_sd, test, result.size())) + { + llerrs << "Invalid compression result!" << llendl; + } +#endif return result; } @@ -2103,7 +2132,7 @@ bool unzip_llsd(LLSD& data, std::istream& is, S32 size) memcpy(result+cur_size, out, have); cur_size += have; - } while (strm.avail_out == 0); + } while (ret == Z_OK); inflateEnd(&strm); delete [] in; @@ -2117,9 +2146,18 @@ bool unzip_llsd(LLSD& data, std::istream& is, S32 size) //result now points to the decompressed LLSD block { std::string res_str((char*) result, cur_size); - std::istringstream istr(res_str); - if (!LLSDSerialize::deserialize(data, istr, cur_size)) + std::string deprecated_header("<? LLSD/Binary ?>"); + + if (res_str.substr(0, deprecated_header.size()) == deprecated_header) + { + res_str = res_str.substr(deprecated_header.size()+1, cur_size); + } + cur_size = res_str.size(); + + std::istringstream istr(res_str); + + if (!LLSDSerialize::fromBinary(data, istr, cur_size)) { llwarns << "Failed to unzip LLSD block" << llendl; free(result); |