/**
* Copy size bytes from the current read position of the buffer
* into a newly allocated string. If less data is available,
* the string will contain the entire remainder of the buffer.
*/
std::string readString(size_t size) {
size = std::min(size, bytesRemaining());
char *stringStart = (char*)data.data()+readIndex;
readIndex += size;
return std::string(stringStart, size);
}
// An estimate of the time remaining, in seconds.
uintmax_t BasicTransaction::timeRemaining() const {
if (speed()==0)
return std::numeric_limits<uintmax_t>::max();
return bytesRemaining()/speed();
}
/**
* Copy size bytes from the current read position of the buffer
* into the provided array. If less data is available,
* as much data as available is copied, and the rest of the
* provided array is not changed. The number of bytes
* actually read is returned.
*/
size_t read(uint8_t* out, size_t size) {
size = std::min(size, bytesRemaining());
memcpy(out, data.data()+readIndex, size);
readIndex += size;
return size;
}
