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/*
* barrier -- mouse and keyboard sharing utility
* Copyright (C) 2015-2016 Symless Ltd.
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file LICENSE that should have accompanied this file.
*
* This package 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "barrier/FileChunk.h"
#include "barrier/ProtocolUtil.h"
#include "barrier/protocol_types.h"
#include "io/IStream.h"
#include "base/Stopwatch.h"
#include "base/Log.h"
static const UInt16 kIntervalThreshold = 1;
FileChunk::FileChunk(size_t size) :
Chunk(size)
{
m_dataSize = size - FILE_CHUNK_META_SIZE;
}
FileChunk*
FileChunk::start(const String& size)
{
size_t sizeLength = size.size();
FileChunk* start = new FileChunk(sizeLength + FILE_CHUNK_META_SIZE);
char* chunk = start->m_chunk;
chunk[0] = kDataStart;
memcpy(&chunk[1], size.c_str(), sizeLength);
chunk[sizeLength + 1] = '\0';
return start;
}
FileChunk*
FileChunk::data(UInt8* data, size_t dataSize)
{
FileChunk* chunk = new FileChunk(dataSize + FILE_CHUNK_META_SIZE);
char* chunkData = chunk->m_chunk;
chunkData[0] = kDataChunk;
memcpy(&chunkData[1], data, dataSize);
chunkData[dataSize + 1] = '\0';
return chunk;
}
FileChunk*
FileChunk::end()
{
FileChunk* end = new FileChunk(FILE_CHUNK_META_SIZE);
char* chunk = end->m_chunk;
chunk[0] = kDataEnd;
chunk[1] = '\0';
return end;
}
int
FileChunk::assemble(barrier::IStream* stream, String& dataReceived, size_t& expectedSize)
{
// parse
UInt8 mark = 0;
String content;
static size_t receivedDataSize;
static double elapsedTime;
static Stopwatch stopwatch;
if (!ProtocolUtil::readf(stream, kMsgDFileTransfer + 4, &mark, &content)) {
return kError;
}
switch (mark) {
case kDataStart:
dataReceived.clear();
expectedSize = barrier::string::stringToSizeType(content);
receivedDataSize = 0;
elapsedTime = 0;
stopwatch.reset();
if (CLOG->getFilter() >= kDEBUG2) {
LOG((CLOG_DEBUG2 "recv file size=%s", content.c_str()));
stopwatch.start();
}
return kStart;
case kDataChunk:
dataReceived.append(content);
if (CLOG->getFilter() >= kDEBUG2) {
LOG((CLOG_DEBUG2 "recv file chunck size=%i", content.size()));
double interval = stopwatch.getTime();
receivedDataSize += content.size();
LOG((CLOG_DEBUG2 "recv file interval=%f s", interval));
if (interval >= kIntervalThreshold) {
double averageSpeed = receivedDataSize / interval / 1000;
LOG((CLOG_DEBUG2 "recv file average speed=%f kb/s", averageSpeed));
receivedDataSize = 0;
elapsedTime += interval;
stopwatch.reset();
}
}
return kNotFinish;
case kDataEnd:
if (expectedSize != dataReceived.size()) {
LOG((CLOG_ERR "corrupted clipboard data, expected size=%d actual size=%d", expectedSize, dataReceived.size()));
return kError;
}
if (CLOG->getFilter() >= kDEBUG2) {
LOG((CLOG_DEBUG2 "file transfer finished"));
elapsedTime += stopwatch.getTime();
double averageSpeed = expectedSize / elapsedTime / 1000;
LOG((CLOG_DEBUG2 "file transfer finished: total time consumed=%f s", elapsedTime));
LOG((CLOG_DEBUG2 "file transfer finished: total data received=%i kb", expectedSize / 1000));
LOG((CLOG_DEBUG2 "file transfer finished: total average speed=%f kb/s", averageSpeed));
}
return kFinish;
}
return kError;
}
void
FileChunk::send(barrier::IStream* stream, UInt8 mark, char* data, size_t dataSize)
{
String chunk(data, dataSize);
switch (mark) {
case kDataStart:
LOG((CLOG_DEBUG2 "sending file chunk start: size=%s", data));
break;
case kDataChunk:
LOG((CLOG_DEBUG2 "sending file chunk: size=%i", chunk.size()));
break;
case kDataEnd:
LOG((CLOG_DEBUG2 "sending file finished"));
break;
}
ProtocolUtil::writef(stream, kMsgDFileTransfer, mark, &chunk);
}
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