ErrorCode BufferProcessor::readDelimeter(char *output, unsigned int outputSize, unsigned int *outputLen, char delimeter)
{
while(1)
{
if (isTerminated()) return ErrorCode::TERMINATED;
if (findCharacter(mReadBuffer, mReadBufferLen, outputLen, 0x0A))
{
// There is newline in the ReadBuffer,
// we will copy the part till newline to line buffer
// and then shift the remaining buffer
(*outputLen)++;
return extractBuffer(output, outputSize, *outputLen);
}
else
{
if (bufferFull())
{
// line is too long
return ErrorCode::SEGMENT_TOO_LONG;
}
ErrorCode rval = fillBuffer();
assert(rval != ErrorCode::FAILURE);
if (rval != ErrorCode::SUCCESS) return rval;
continue;
}
}
}
void SimulatorIMP::fillUpdateBuffer() {
while (!bufferFull()) {
for(auto& tp : tpacks) //round robin
postingsInUpdateBuffer += tp.addUBPostings();
if(finished())
break;
}
}
static void bufferWrite( owl_buffer *buffer, const char *data, owl_offset num_bytes ) {
//*************************************************************************************
owl_offset bytes_remaining;
owl_offset chunk_size;
assert( buffer->location <= buffer->size );
bytes_remaining = num_bytes;
while( bytes_remaining ) {
if( bufferFull( buffer ) ) {
bufferCollapse( buffer );
}
chunk_size = bufferBinBytesLeft( buffer );
if( bytes_remaining < chunk_size ) {
chunk_size = bytes_remaining;
}
bufferFill( buffer, data, chunk_size );
bytes_remaining -= chunk_size;
if( data != NULL ) {
data += chunk_size;
}
buffer->location += chunk_size;
}
}
//***************************************************************************
void Kwave::RecordThread::run()
{
int result = 0;
bool interrupted = false;
unsigned int offset = 0;
// read data until we receive a close signal
while (!shouldStop() && !interrupted) {
// dequeue a buffer from the "empty" queue
if (m_empty_queue.isEmpty()) {
// we had a "buffer overflow"
qWarning("RecordThread::run() -> NO EMPTY BUFFER FOUND !!!");
result = -ENOBUFS;
break;
}
QByteArray buffer = m_empty_queue.dequeue();
int len = buffer.size();
Q_ASSERT(buffer.size());
if (!len) {
result = -ENOBUFS;
break;
}
// read into the current buffer
offset = 0;
while (len && !interrupted && !shouldStop()) {
// read raw data from the record device
result = (m_device) ?
m_device->read(buffer, offset) : -EBADF;
if ((result < 0) && (result != -EAGAIN))
qWarning("RecordThread: read result = %d (%s)",
result, strerror(-result));
if (result == -EAGAIN) {
continue;
} else if (result == -EBADF) {
// file open has failed
interrupted = true;
break;
} else if (result == -EINTR) {
// thread was interrupted, received signal?
interrupted = true;
break;
} else if (result < 1) {
// something went wrong !?
interrupted = true;
qWarning("RecordThread::run(): read returned %d", result);
break;
} else {
offset += result;
len = buffer.size() - offset;
Q_ASSERT(len >= 0);
if (len < 0) len = 0;
}
}
// return buffer into the empty queue and abort on errors
// do not use it
if (interrupted && (result < 0)) {
m_empty_queue.enqueue(buffer);
break;
}
// inform the application that there is something to dequeue
m_full_queue.enqueue(buffer);
emit bufferFull();
}
// do not evaluate the result of the last operation if there
// was the external request to stop
if (shouldStop() || (interrupted && (result > 0)))
result = 0;
if (result) emit stopped(result);
}
// would be called by parser thread
bool
FLVParser::parseNextChunk()
{
bool indexOnly = bufferFull(); // won't lock, but our caller locked...
return parseNextTag(indexOnly);
}
