418 lines
9.3 KiB
C++
418 lines
9.3 KiB
C++
/**
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* @file llsdmessagebuilder.cpp
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* @brief LLSDMessageBuilder class implementation.
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*
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* $LicenseInfo:firstyear=2007&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#include "linden_common.h"
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#include "llsdmessagebuilder.h"
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#include "llmessagetemplate.h"
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#include "llmath.h"
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#include "llquaternion.h"
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#include "llsdutil.h"
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#include "llsdutil_math.h"
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#include "llsdserialize.h"
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#include "u64.h"
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#include "v3dmath.h"
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#include "v3math.h"
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#include "v4math.h"
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LLSDMessageBuilder::LLSDMessageBuilder() :
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mCurrentMessage(LLSD::emptyMap()),
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mCurrentBlock(NULL),
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mCurrentMessageName(""),
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mCurrentBlockName(""),
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mbSBuilt(FALSE),
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mbSClear(TRUE)
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{
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}
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//virtual
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LLSDMessageBuilder::~LLSDMessageBuilder()
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{
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}
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// virtual
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void LLSDMessageBuilder::newMessage(const char* name)
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{
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mbSBuilt = FALSE;
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mbSClear = FALSE;
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mCurrentMessage = LLSD::emptyMap();
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mCurrentMessageName = (char*)name;
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}
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// virtual
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void LLSDMessageBuilder::clearMessage()
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{
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mbSBuilt = FALSE;
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mbSClear = TRUE;
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mCurrentMessage = LLSD::emptyMap();
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mCurrentMessageName = "";
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}
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// virtual
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void LLSDMessageBuilder::nextBlock(const char* blockname)
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{
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LLSD& block = mCurrentMessage[blockname];
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if(block.isUndefined())
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{
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block[0] = LLSD::emptyMap();
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mCurrentBlock = &(block[0]);
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}
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else if(block.isArray())
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{
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block[block.size()] = LLSD::emptyMap();
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mCurrentBlock = &(block[block.size() - 1]);
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}
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else
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{
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LL_ERRS() << "existing block not array" << LL_ENDL;
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}
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}
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void LLSDMessageBuilder::addBinaryData(
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const char* varname,
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const void* data,
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S32 size)
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{
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std::vector<U8> v;
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v.resize(size);
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memcpy(&(v[0]), reinterpret_cast<const U8*>(data), size);
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(*mCurrentBlock)[varname] = v;
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}
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void LLSDMessageBuilder::addS8(const char* varname, S8 v)
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{
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(*mCurrentBlock)[varname] = v;
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}
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void LLSDMessageBuilder::addU8(const char* varname, U8 v)
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{
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(*mCurrentBlock)[varname] = v;
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}
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void LLSDMessageBuilder::addS16(const char* varname, S16 v)
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{
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(*mCurrentBlock)[varname] = v;
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}
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void LLSDMessageBuilder::addU16(const char* varname, U16 v)
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{
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(*mCurrentBlock)[varname] = v;
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}
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void LLSDMessageBuilder::addF32(const char* varname, F32 v)
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{
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(*mCurrentBlock)[varname] = v;
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}
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void LLSDMessageBuilder::addS32(const char* varname, S32 v)
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{
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(*mCurrentBlock)[varname] = v;
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}
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void LLSDMessageBuilder::addU32(const char* varname, U32 v)
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{
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(*mCurrentBlock)[varname] = ll_sd_from_U32(v);
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}
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void LLSDMessageBuilder::addU64(const char* varname, U64 v)
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{
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(*mCurrentBlock)[varname] = ll_sd_from_U64(v);
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}
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void LLSDMessageBuilder::addF64(const char* varname, F64 v)
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{
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(*mCurrentBlock)[varname] = v;
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}
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void LLSDMessageBuilder::addIPAddr(const char* varname, U32 v)
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{
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(*mCurrentBlock)[varname] = ll_sd_from_ipaddr(v);
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}
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void LLSDMessageBuilder::addIPPort(const char* varname, U16 v)
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{
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(*mCurrentBlock)[varname] = v;
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}
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void LLSDMessageBuilder::addBOOL(const char* varname, BOOL v)
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{
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(*mCurrentBlock)[varname] = (v == TRUE);
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}
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void LLSDMessageBuilder::addString(const char* varname, const char* v)
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{
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if (v)
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(*mCurrentBlock)[varname] = v; /* Flawfinder: ignore */
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else
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(*mCurrentBlock)[varname] = "";
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}
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void LLSDMessageBuilder::addString(const char* varname, const std::string& v)
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{
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if (v.size())
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(*mCurrentBlock)[varname] = v;
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else
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(*mCurrentBlock)[varname] = "";
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}
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void LLSDMessageBuilder::addVector3(const char* varname, const LLVector3& v)
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{
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(*mCurrentBlock)[varname] = ll_sd_from_vector3(v);
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}
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void LLSDMessageBuilder::addVector4(const char* varname, const LLVector4& v)
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{
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(*mCurrentBlock)[varname] = ll_sd_from_vector4(v);
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}
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void LLSDMessageBuilder::addVector3d(const char* varname, const LLVector3d& v)
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{
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(*mCurrentBlock)[varname] = ll_sd_from_vector3d(v);
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}
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void LLSDMessageBuilder::addQuat(const char* varname, const LLQuaternion& v)
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{
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(*mCurrentBlock)[varname] = ll_sd_from_quaternion(v);
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}
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void LLSDMessageBuilder::addUUID(const char* varname, const LLUUID& v)
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{
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(*mCurrentBlock)[varname] = v;
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}
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void LLSDMessageBuilder::compressMessage(U8*& buf_ptr, U32& buffer_length)
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{
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}
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BOOL LLSDMessageBuilder::isMessageFull(const char* blockname) const
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{
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return FALSE;
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}
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U32 LLSDMessageBuilder::buildMessage(U8*, U32, U8)
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{
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return 0;
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}
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void LLSDMessageBuilder::copyFromMessageData(const LLMsgData& data)
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{
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// copy the blocks
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// counting variables used to encode multiple block info
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S32 block_count = 0;
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char* block_name = NULL;
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// loop through msg blocks to loop through variables, totalling up size
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// data and filling the new (send) message
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LLMsgData::msg_blk_data_map_t::const_iterator iter =
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data.mMemberBlocks.begin();
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LLMsgData::msg_blk_data_map_t::const_iterator end =
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data.mMemberBlocks.end();
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for(; iter != end; ++iter)
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{
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const LLMsgBlkData* mbci = iter->second;
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if(!mbci) continue;
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// do we need to encode a block code?
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if (block_count == 0)
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{
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block_count = mbci->mBlockNumber;
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block_name = (char*)mbci->mName;
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}
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// counting down mutliple blocks
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block_count--;
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nextBlock(block_name);
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// now loop through the variables
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LLMsgBlkData::msg_var_data_map_t::const_iterator dit = mbci->mMemberVarData.begin();
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LLMsgBlkData::msg_var_data_map_t::const_iterator dend = mbci->mMemberVarData.end();
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for(; dit != dend; ++dit)
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{
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const LLMsgVarData& mvci = mbci->mMemberVarData.toValue(dit);
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const char* varname = mvci.getName();
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switch(mvci.getType())
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{
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case MVT_FIXED:
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addBinaryData(varname, mvci.getData(), mvci.getSize());
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break;
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case MVT_VARIABLE:
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{
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const char end = ((const char*)mvci.getData())[mvci.getSize()-1]; // Ensure null terminated
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if (mvci.getDataSize() == 1 && end == 0)
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{
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addString(varname, (const char*)mvci.getData());
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}
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else
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{
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addBinaryData(varname, mvci.getData(), mvci.getSize());
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}
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break;
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}
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case MVT_U8:
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addU8(varname, *(U8*)mvci.getData());
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break;
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case MVT_U16:
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addU16(varname, *(U16*)mvci.getData());
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break;
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case MVT_U32:
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addU32(varname, *(U32*)mvci.getData());
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break;
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case MVT_U64:
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addU64(varname, *(U64*)mvci.getData());
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break;
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case MVT_S8:
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addS8(varname, *(S8*)mvci.getData());
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break;
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case MVT_S16:
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addS16(varname, *(S16*)mvci.getData());
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break;
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case MVT_S32:
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addS32(varname, *(S32*)mvci.getData());
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break;
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// S64 not supported in LLSD so we just truncate it
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case MVT_S64:
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addS32(varname, (S32)*(S64*)mvci.getData());
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break;
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case MVT_F32:
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addF32(varname, *(F32*)mvci.getData());
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break;
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case MVT_F64:
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addF64(varname, *(F64*)mvci.getData());
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break;
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case MVT_LLVector3:
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addVector3(varname, *(LLVector3*)mvci.getData());
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break;
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case MVT_LLVector3d:
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addVector3d(varname, *(LLVector3d*)mvci.getData());
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break;
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case MVT_LLVector4:
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addVector4(varname, *(LLVector4*)mvci.getData());
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break;
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case MVT_LLQuaternion:
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{
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LLVector3 v = *(LLVector3*)mvci.getData();
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LLQuaternion q;
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q.unpackFromVector3(v);
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addQuat(varname, q);
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break;
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}
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case MVT_LLUUID:
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addUUID(varname, *(LLUUID*)mvci.getData());
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break;
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case MVT_BOOL:
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addBOOL(varname, *(BOOL*)mvci.getData());
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break;
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case MVT_IP_ADDR:
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addIPAddr(varname, *(U32*)mvci.getData());
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break;
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case MVT_IP_PORT:
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addIPPort(varname, *(U16*)mvci.getData());
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break;
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case MVT_U16Vec3:
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//treated as an array of 6 bytes
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addBinaryData(varname, mvci.getData(), 6);
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break;
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case MVT_U16Quat:
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//treated as an array of 8 bytes
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addBinaryData(varname, mvci.getData(), 8);
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break;
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case MVT_S16Array:
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addBinaryData(varname, mvci.getData(), mvci.getSize());
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break;
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default:
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LL_WARNS() << "Unknown type in conversion of message to LLSD" << LL_ENDL;
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break;
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}
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}
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}
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}
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//virtual
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void LLSDMessageBuilder::copyFromLLSD(const LLSD& msg)
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{
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mCurrentMessage = msg;
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LL_DEBUGS() << LLSDNotationStreamer(mCurrentMessage) << LL_ENDL;
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}
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const LLSD& LLSDMessageBuilder::getMessage() const
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{
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return mCurrentMessage;
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}
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//virtual
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void LLSDMessageBuilder::setBuilt(BOOL b) { mbSBuilt = b; }
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//virtual
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BOOL LLSDMessageBuilder::isBuilt() const {return mbSBuilt;}
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//virtual
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BOOL LLSDMessageBuilder::isClear() const {return mbSClear;}
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//virtual
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S32 LLSDMessageBuilder::getMessageSize()
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{
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// babbage: size is unknown as message stored as LLSD.
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// return non-zero if pending data, as send can be skipped for 0 size.
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// return 1 to encourage senders checking size against splitting message.
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return mCurrentMessage.size()? 1 : 0;
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}
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//virtual
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const char* LLSDMessageBuilder::getMessageName() const
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{
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return mCurrentMessageName.c_str();
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}
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