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-rw-r--r--indra/llmessage/llxfer.cpp776
1 files changed, 388 insertions, 388 deletions
diff --git a/indra/llmessage/llxfer.cpp b/indra/llmessage/llxfer.cpp
index 58e85b49b4..057f4de0ab 100644
--- a/indra/llmessage/llxfer.cpp
+++ b/indra/llmessage/llxfer.cpp
@@ -1,388 +1,388 @@
-/**
- * @file llxfer.cpp
- * @brief implementation of LLXfer class for a single xfer.
- *
- * $LicenseInfo:firstyear=2001&license=viewerlgpl$
- * Second Life Viewer Source Code
- * 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.
- *
- * 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.
- *
- * 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
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
-
-#include "linden_common.h"
-
-#include "llxfer.h"
-#include "lluuid.h"
-#include "llerror.h"
-#include "llmath.h"
-#include "u64.h"
-
-//number of bytes sent in each message
-const U32 LL_XFER_CHUNK_SIZE = 1000;
-
-const U32 LLXfer::XFER_FILE = 1;
-const U32 LLXfer::XFER_VFILE = 2;
-const U32 LLXfer::XFER_MEM = 3;
-
-///////////////////////////////////////////////////////////
-
-LLXfer::LLXfer (S32 chunk_size)
-{
- init(chunk_size);
-}
-
-///////////////////////////////////////////////////////////
-
-LLXfer::~LLXfer ()
-{
- cleanup();
-}
-
-///////////////////////////////////////////////////////////
-
-void LLXfer::init (S32 chunk_size)
-{
- mID = 0;
-
- mPacketNum = -1; // there's a preincrement before sending the zeroth packet
- mXferSize = 0;
-
- mStatus = e_LL_XFER_UNINITIALIZED;
- mWaitingForACK = false;
-
- mCallback = NULL;
- mCallbackDataHandle = NULL;
- mCallbackResult = 0;
-
- mBufferContainsEOF = false;
- mBuffer = NULL;
- mBufferLength = 0;
- mBufferStartOffset = 0;
-
- mRetries = 0;
-
- if (chunk_size < 1)
- {
- chunk_size = LL_XFER_CHUNK_SIZE;
- }
- mChunkSize = chunk_size;
-}
-
-///////////////////////////////////////////////////////////
-
-void LLXfer::cleanup ()
-{
- if (mBuffer)
- {
- delete[] mBuffer;
- mBuffer = NULL;
- }
-}
-
-///////////////////////////////////////////////////////////
-
-S32 LLXfer::startSend (U64 xfer_id, const LLHost &remote_host)
-{
- LL_WARNS("Xfer") << "unexpected call to base class LLXfer::startSend for " << getFileName() << LL_ENDL;
- return (-1);
-}
-
-///////////////////////////////////////////////////////////
-
-void LLXfer::closeFileHandle()
-{
- LL_WARNS("Xfer") << "unexpected call to base class LLXfer::closeFileHandle for " << getFileName() << LL_ENDL;
-}
-
-///////////////////////////////////////////////////////////
-
-S32 LLXfer::reopenFileHandle()
-{
- LL_WARNS("Xfer") << "unexpected call to base class LLXfer::reopenFileHandle for " << getFileName() << LL_ENDL;
- return (-1);
-}
-
-///////////////////////////////////////////////////////////
-
-void LLXfer::setXferSize (S32 xfer_size)
-{
- mXferSize = xfer_size;
-// cout << "starting transfer of size: " << xfer_size << endl;
-}
-
-///////////////////////////////////////////////////////////
-
-S32 LLXfer::startDownload()
-{
- LL_WARNS("Xfer") << "undifferentiated LLXfer::startDownload for " << getFileName()
- << LL_ENDL;
- return (-1);
-}
-
-///////////////////////////////////////////////////////////
-
-S32 LLXfer::receiveData (char *datap, S32 data_size)
-{
- S32 retval = 0;
-
- if (((S32) mBufferLength + data_size) > getMaxBufferSize())
- { // Write existing data to disk if it's larger than the buffer size
- retval = flush();
- }
-
- if (!retval)
- {
- if (datap != NULL)
- { // Append new data to mBuffer
- memcpy(&mBuffer[mBufferLength],datap,data_size); /*Flawfinder: ignore*/
- mBufferLength += data_size;
- }
- else
- {
- LL_ERRS("Xfer") << "NULL data passed in receiveData" << LL_ENDL;
- }
- }
-
- return (retval);
-}
-
-///////////////////////////////////////////////////////////
-
-S32 LLXfer::flush()
-{
- // only files have somewhere to flush to
- // if we get called with a flush it means we've blown past our
- // allocated buffer size
-
- return (-1);
-}
-
-
-///////////////////////////////////////////////////////////
-
-S32 LLXfer::suck(S32 start_position)
-{
- LL_WARNS("Xfer") << "Attempted to send a packet outside the buffer bounds in LLXfer::suck()" << LL_ENDL;
- return (-1);
-}
-
-///////////////////////////////////////////////////////////
-
-void LLXfer::sendPacket(S32 packet_num)
-{
- char fdata_buf[LL_XFER_LARGE_PAYLOAD+4]; /* Flawfinder: ignore */
- S32 fdata_size = mChunkSize;
- bool last_packet = false;
- S32 num_copy = 0;
-
- // if the desired packet is not in our current buffered excerpt from the file. . .
- if (((U32)packet_num*fdata_size < mBufferStartOffset)
- || ((U32)llmin((U32)mXferSize,(U32)((U32)(packet_num+1)*fdata_size)) > mBufferStartOffset + mBufferLength))
-
- {
- if (suck(packet_num*fdata_size)) // returns non-zero on failure
- {
- abort(LL_ERR_EOF);
- return;
- }
- }
-
- S32 desired_read_position = 0;
-
- desired_read_position = packet_num * fdata_size - mBufferStartOffset;
-
- fdata_size = llmin((S32)mBufferLength-desired_read_position, mChunkSize);
-
- if (fdata_size < 0)
- {
- LL_WARNS("Xfer") << "negative data size in xfer send, aborting" << LL_ENDL;
- abort(LL_ERR_EOF);
- return;
- }
-
- if (((U32)(desired_read_position + fdata_size) >= (U32)mBufferLength) && (mBufferContainsEOF))
- {
- last_packet = true;
- }
-
- if (packet_num)
- {
- num_copy = llmin(fdata_size, (S32)sizeof(fdata_buf));
- num_copy = llmin(num_copy, (S32)(mBufferLength - desired_read_position));
- if (num_copy > 0)
- {
- memcpy(fdata_buf,&mBuffer[desired_read_position],num_copy); /*Flawfinder: ignore*/
- }
- }
- else
- {
- // if we're the first packet, encode size as an additional S32
- // at start of data.
- num_copy = llmin(fdata_size, (S32)(sizeof(fdata_buf)-sizeof(S32)));
- num_copy = llmin(
- num_copy,
- (S32)(mBufferLength - desired_read_position));
- if (num_copy > 0)
- {
- memcpy( /*Flawfinder: ignore*/
- fdata_buf + sizeof(S32),
- &mBuffer[desired_read_position],
- num_copy);
- }
- fdata_size += sizeof(S32);
- htolememcpy(fdata_buf,&mXferSize, MVT_S32, sizeof(S32));
- }
-
- S32 encoded_packetnum = encodePacketNum(packet_num,last_packet);
-
- if (fdata_size)
- {
- // send the packet
- gMessageSystem->newMessageFast(_PREHASH_SendXferPacket);
- gMessageSystem->nextBlockFast(_PREHASH_XferID);
-
- gMessageSystem->addU64Fast(_PREHASH_ID, mID);
- gMessageSystem->addU32Fast(_PREHASH_Packet, encoded_packetnum);
-
- gMessageSystem->nextBlockFast(_PREHASH_DataPacket);
- gMessageSystem->addBinaryDataFast(_PREHASH_Data, &fdata_buf,fdata_size);
-
- S32 sent_something = gMessageSystem->sendMessage(mRemoteHost);
- if (sent_something == 0)
- {
- abort(LL_ERR_CIRCUIT_GONE);
- return;
- }
-
- ACKTimer.reset();
- mWaitingForACK = true;
- }
- if (last_packet)
- {
- mStatus = e_LL_XFER_COMPLETE;
- }
- else
- {
- mStatus = e_LL_XFER_IN_PROGRESS;
- }
-}
-
-///////////////////////////////////////////////////////////
-
-void LLXfer::sendNextPacket()
-{
- mRetries = 0;
- sendPacket(++mPacketNum);
-}
-
-///////////////////////////////////////////////////////////
-
-void LLXfer::resendLastPacket()
-{
- mRetries++;
- sendPacket(mPacketNum);
-}
-
-///////////////////////////////////////////////////////////
-
-S32 LLXfer::processEOF()
-{
- S32 retval = 0;
-
- mStatus = e_LL_XFER_COMPLETE;
-
- if (LL_ERR_NOERR == mCallbackResult)
- {
- LL_INFOS("Xfer") << "xfer from " << mRemoteHost << " complete: " << getFileName()
- << LL_ENDL;
- }
- else
- {
- LL_INFOS("Xfer") << "xfer from " << mRemoteHost << " failed, code "
- << mCallbackResult << ": " << getFileName() << LL_ENDL;
- }
-
- if (mCallback)
- {
- mCallback(mCallbackDataHandle,mCallbackResult, LLExtStat::NONE);
- }
-
- return(retval);
-}
-
-///////////////////////////////////////////////////////////
-
-S32 LLXfer::encodePacketNum(S32 packet_num, bool is_EOF)
-{
- if (is_EOF)
- {
- packet_num |= 0x80000000;
- }
- return packet_num;
-}
-
-///////////////////////////////////////////////////////////
-
-void LLXfer::abort (S32 result_code)
-{
- mCallbackResult = result_code;
-
- LL_INFOS("Xfer") << "Aborting xfer from " << mRemoteHost << " named " << getFileName()
- << " - error: " << result_code << LL_ENDL;
-
- if (result_code != LL_ERR_CIRCUIT_GONE)
- {
- gMessageSystem->newMessageFast(_PREHASH_AbortXfer);
- gMessageSystem->nextBlockFast(_PREHASH_XferID);
- gMessageSystem->addU64Fast(_PREHASH_ID, mID);
- gMessageSystem->addS32Fast(_PREHASH_Result, result_code);
-
- gMessageSystem->sendMessage(mRemoteHost);
- }
-
- mStatus = e_LL_XFER_ABORTED;
-}
-
-
-///////////////////////////////////////////////////////////
-
-std::string LLXfer::getFileName()
-{
- return U64_to_str(mID);
-}
-
-///////////////////////////////////////////////////////////
-
-U32 LLXfer::getXferTypeTag()
-{
- return 0;
-}
-
-///////////////////////////////////////////////////////////
-
-S32 LLXfer::getMaxBufferSize ()
-{
- return(mXferSize);
-}
-
-
-std::ostream& operator<< (std::ostream& os, LLXfer &hh)
-{
- os << hh.getFileName() ;
- return os;
-}
+/**
+ * @file llxfer.cpp
+ * @brief implementation of LLXfer class for a single xfer.
+ *
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * 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.
+ *
+ * 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.
+ *
+ * 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
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include "llxfer.h"
+#include "lluuid.h"
+#include "llerror.h"
+#include "llmath.h"
+#include "u64.h"
+
+//number of bytes sent in each message
+const U32 LL_XFER_CHUNK_SIZE = 1000;
+
+const U32 LLXfer::XFER_FILE = 1;
+const U32 LLXfer::XFER_VFILE = 2;
+const U32 LLXfer::XFER_MEM = 3;
+
+///////////////////////////////////////////////////////////
+
+LLXfer::LLXfer (S32 chunk_size)
+{
+ init(chunk_size);
+}
+
+///////////////////////////////////////////////////////////
+
+LLXfer::~LLXfer ()
+{
+ cleanup();
+}
+
+///////////////////////////////////////////////////////////
+
+void LLXfer::init (S32 chunk_size)
+{
+ mID = 0;
+
+ mPacketNum = -1; // there's a preincrement before sending the zeroth packet
+ mXferSize = 0;
+
+ mStatus = e_LL_XFER_UNINITIALIZED;
+ mWaitingForACK = false;
+
+ mCallback = NULL;
+ mCallbackDataHandle = NULL;
+ mCallbackResult = 0;
+
+ mBufferContainsEOF = false;
+ mBuffer = NULL;
+ mBufferLength = 0;
+ mBufferStartOffset = 0;
+
+ mRetries = 0;
+
+ if (chunk_size < 1)
+ {
+ chunk_size = LL_XFER_CHUNK_SIZE;
+ }
+ mChunkSize = chunk_size;
+}
+
+///////////////////////////////////////////////////////////
+
+void LLXfer::cleanup ()
+{
+ if (mBuffer)
+ {
+ delete[] mBuffer;
+ mBuffer = NULL;
+ }
+}
+
+///////////////////////////////////////////////////////////
+
+S32 LLXfer::startSend (U64 xfer_id, const LLHost &remote_host)
+{
+ LL_WARNS("Xfer") << "unexpected call to base class LLXfer::startSend for " << getFileName() << LL_ENDL;
+ return (-1);
+}
+
+///////////////////////////////////////////////////////////
+
+void LLXfer::closeFileHandle()
+{
+ LL_WARNS("Xfer") << "unexpected call to base class LLXfer::closeFileHandle for " << getFileName() << LL_ENDL;
+}
+
+///////////////////////////////////////////////////////////
+
+S32 LLXfer::reopenFileHandle()
+{
+ LL_WARNS("Xfer") << "unexpected call to base class LLXfer::reopenFileHandle for " << getFileName() << LL_ENDL;
+ return (-1);
+}
+
+///////////////////////////////////////////////////////////
+
+void LLXfer::setXferSize (S32 xfer_size)
+{
+ mXferSize = xfer_size;
+// cout << "starting transfer of size: " << xfer_size << endl;
+}
+
+///////////////////////////////////////////////////////////
+
+S32 LLXfer::startDownload()
+{
+ LL_WARNS("Xfer") << "undifferentiated LLXfer::startDownload for " << getFileName()
+ << LL_ENDL;
+ return (-1);
+}
+
+///////////////////////////////////////////////////////////
+
+S32 LLXfer::receiveData (char *datap, S32 data_size)
+{
+ S32 retval = 0;
+
+ if (((S32) mBufferLength + data_size) > getMaxBufferSize())
+ { // Write existing data to disk if it's larger than the buffer size
+ retval = flush();
+ }
+
+ if (!retval)
+ {
+ if (datap != NULL)
+ { // Append new data to mBuffer
+ memcpy(&mBuffer[mBufferLength],datap,data_size); /*Flawfinder: ignore*/
+ mBufferLength += data_size;
+ }
+ else
+ {
+ LL_ERRS("Xfer") << "NULL data passed in receiveData" << LL_ENDL;
+ }
+ }
+
+ return (retval);
+}
+
+///////////////////////////////////////////////////////////
+
+S32 LLXfer::flush()
+{
+ // only files have somewhere to flush to
+ // if we get called with a flush it means we've blown past our
+ // allocated buffer size
+
+ return (-1);
+}
+
+
+///////////////////////////////////////////////////////////
+
+S32 LLXfer::suck(S32 start_position)
+{
+ LL_WARNS("Xfer") << "Attempted to send a packet outside the buffer bounds in LLXfer::suck()" << LL_ENDL;
+ return (-1);
+}
+
+///////////////////////////////////////////////////////////
+
+void LLXfer::sendPacket(S32 packet_num)
+{
+ char fdata_buf[LL_XFER_LARGE_PAYLOAD+4]; /* Flawfinder: ignore */
+ S32 fdata_size = mChunkSize;
+ bool last_packet = false;
+ S32 num_copy = 0;
+
+ // if the desired packet is not in our current buffered excerpt from the file. . .
+ if (((U32)packet_num*fdata_size < mBufferStartOffset)
+ || ((U32)llmin((U32)mXferSize,(U32)((U32)(packet_num+1)*fdata_size)) > mBufferStartOffset + mBufferLength))
+
+ {
+ if (suck(packet_num*fdata_size)) // returns non-zero on failure
+ {
+ abort(LL_ERR_EOF);
+ return;
+ }
+ }
+
+ S32 desired_read_position = 0;
+
+ desired_read_position = packet_num * fdata_size - mBufferStartOffset;
+
+ fdata_size = llmin((S32)mBufferLength-desired_read_position, mChunkSize);
+
+ if (fdata_size < 0)
+ {
+ LL_WARNS("Xfer") << "negative data size in xfer send, aborting" << LL_ENDL;
+ abort(LL_ERR_EOF);
+ return;
+ }
+
+ if (((U32)(desired_read_position + fdata_size) >= (U32)mBufferLength) && (mBufferContainsEOF))
+ {
+ last_packet = true;
+ }
+
+ if (packet_num)
+ {
+ num_copy = llmin(fdata_size, (S32)sizeof(fdata_buf));
+ num_copy = llmin(num_copy, (S32)(mBufferLength - desired_read_position));
+ if (num_copy > 0)
+ {
+ memcpy(fdata_buf,&mBuffer[desired_read_position],num_copy); /*Flawfinder: ignore*/
+ }
+ }
+ else
+ {
+ // if we're the first packet, encode size as an additional S32
+ // at start of data.
+ num_copy = llmin(fdata_size, (S32)(sizeof(fdata_buf)-sizeof(S32)));
+ num_copy = llmin(
+ num_copy,
+ (S32)(mBufferLength - desired_read_position));
+ if (num_copy > 0)
+ {
+ memcpy( /*Flawfinder: ignore*/
+ fdata_buf + sizeof(S32),
+ &mBuffer[desired_read_position],
+ num_copy);
+ }
+ fdata_size += sizeof(S32);
+ htolememcpy(fdata_buf,&mXferSize, MVT_S32, sizeof(S32));
+ }
+
+ S32 encoded_packetnum = encodePacketNum(packet_num,last_packet);
+
+ if (fdata_size)
+ {
+ // send the packet
+ gMessageSystem->newMessageFast(_PREHASH_SendXferPacket);
+ gMessageSystem->nextBlockFast(_PREHASH_XferID);
+
+ gMessageSystem->addU64Fast(_PREHASH_ID, mID);
+ gMessageSystem->addU32Fast(_PREHASH_Packet, encoded_packetnum);
+
+ gMessageSystem->nextBlockFast(_PREHASH_DataPacket);
+ gMessageSystem->addBinaryDataFast(_PREHASH_Data, &fdata_buf,fdata_size);
+
+ S32 sent_something = gMessageSystem->sendMessage(mRemoteHost);
+ if (sent_something == 0)
+ {
+ abort(LL_ERR_CIRCUIT_GONE);
+ return;
+ }
+
+ ACKTimer.reset();
+ mWaitingForACK = true;
+ }
+ if (last_packet)
+ {
+ mStatus = e_LL_XFER_COMPLETE;
+ }
+ else
+ {
+ mStatus = e_LL_XFER_IN_PROGRESS;
+ }
+}
+
+///////////////////////////////////////////////////////////
+
+void LLXfer::sendNextPacket()
+{
+ mRetries = 0;
+ sendPacket(++mPacketNum);
+}
+
+///////////////////////////////////////////////////////////
+
+void LLXfer::resendLastPacket()
+{
+ mRetries++;
+ sendPacket(mPacketNum);
+}
+
+///////////////////////////////////////////////////////////
+
+S32 LLXfer::processEOF()
+{
+ S32 retval = 0;
+
+ mStatus = e_LL_XFER_COMPLETE;
+
+ if (LL_ERR_NOERR == mCallbackResult)
+ {
+ LL_INFOS("Xfer") << "xfer from " << mRemoteHost << " complete: " << getFileName()
+ << LL_ENDL;
+ }
+ else
+ {
+ LL_INFOS("Xfer") << "xfer from " << mRemoteHost << " failed, code "
+ << mCallbackResult << ": " << getFileName() << LL_ENDL;
+ }
+
+ if (mCallback)
+ {
+ mCallback(mCallbackDataHandle,mCallbackResult, LLExtStat::NONE);
+ }
+
+ return(retval);
+}
+
+///////////////////////////////////////////////////////////
+
+S32 LLXfer::encodePacketNum(S32 packet_num, bool is_EOF)
+{
+ if (is_EOF)
+ {
+ packet_num |= 0x80000000;
+ }
+ return packet_num;
+}
+
+///////////////////////////////////////////////////////////
+
+void LLXfer::abort (S32 result_code)
+{
+ mCallbackResult = result_code;
+
+ LL_INFOS("Xfer") << "Aborting xfer from " << mRemoteHost << " named " << getFileName()
+ << " - error: " << result_code << LL_ENDL;
+
+ if (result_code != LL_ERR_CIRCUIT_GONE)
+ {
+ gMessageSystem->newMessageFast(_PREHASH_AbortXfer);
+ gMessageSystem->nextBlockFast(_PREHASH_XferID);
+ gMessageSystem->addU64Fast(_PREHASH_ID, mID);
+ gMessageSystem->addS32Fast(_PREHASH_Result, result_code);
+
+ gMessageSystem->sendMessage(mRemoteHost);
+ }
+
+ mStatus = e_LL_XFER_ABORTED;
+}
+
+
+///////////////////////////////////////////////////////////
+
+std::string LLXfer::getFileName()
+{
+ return U64_to_str(mID);
+}
+
+///////////////////////////////////////////////////////////
+
+U32 LLXfer::getXferTypeTag()
+{
+ return 0;
+}
+
+///////////////////////////////////////////////////////////
+
+S32 LLXfer::getMaxBufferSize ()
+{
+ return(mXferSize);
+}
+
+
+std::ostream& operator<< (std::ostream& os, LLXfer &hh)
+{
+ os << hh.getFileName() ;
+ return os;
+}
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