AVHTTP_DECL std::size_t read_body(AsyncReadStream& stream,
const avhttp::url& url, MutableBufferSequence& buffers, boost::system::error_code &ec)
{
std::size_t readed = 0;
stream.open(url, ec);
if (ec)
return -1;
readed = boost::asio::read(stream, buffers, transfer_response_body(stream.content_length()), ec);
if(ec == boost::asio::error::eof && stream.content_length() == -1)
ec = boost::system::error_code();
return readed;
}
future<size_t> read_some(AsyncReadStream& s, const std::shared_ptr<char>& buffer, size_t length, size_t offset)
{
promise<size_t>::ptr completion_promise(new promise<size_t>("fc::asio::async_read_some"));
s.async_read_some(boost::asio::buffer(buffer.get() + offset, length),
detail::read_write_handler_with_buffer(completion_promise, buffer));
return completion_promise;//->wait();
}
future<size_t> read_some(AsyncReadStream& s, char* buffer, size_t length, size_t offset = 0)
{
promise<size_t>::ptr completion_promise(new promise<size_t>("fc::asio::async_read_some"));
s.async_read_some(boost::asio::buffer(buffer + offset, length),
detail::read_write_handler(completion_promise));
return completion_promise;//->wait();
}
size_t read_some( AsyncReadStream& s, const MutableBufferSequence& buf ) {
detail::non_blocking<AsyncReadStream> non_blocking;
// TODO: determine if non_blocking query results in a system call that
// will slow down every read...
if( non_blocking(s) || non_blocking(s,true) ) {
boost::system::error_code ec;
size_t r = s.read_some( buf, ec );
if( !ec ) return r;
if( ec != boost::asio::error::would_block )
BOOST_THROW_EXCEPTION( boost::system::system_error(ec) );
}
promise<size_t>::ptr p(new promise<size_t>("fc::asio::read_some"));
s.async_read_some( buf, boost::bind( detail::read_write_handler, p, _1, _2 ) );
return p->wait();
}
void async_read(AsyncReadStream & stream, std::size_t read_size, ReadHandler handler)
{
if(!lock_read(stream, handler)) return;
if(read_size < m_buffer.size())
{
stream.get_io_service().post(std::bind(&read_stream_buffer<StreamBufferClass, PodType>::template read_complete<ReadHandler>,
this, read_size, read_size, std::error_code(), 0, handler));
return;
}
asio::async_read(stream, m_buffer, asio::transfer_at_least(
read_size - m_buffer.size()),
std::bind(&read_stream_buffer::template read_complete<ReadHandler>, this,
m_buffer.size(), read_size, std::placeholders::_1, std::placeholders::_2, handler));
}
void async_read_some(AsyncReadStream& s, const std::shared_ptr<char>& buffer,
size_t length, size_t offset, promise<size_t>::ptr completion_promise)
{
s.async_read_some(boost::asio::buffer(buffer.get() + offset, length), detail::read_write_handler_with_buffer(completion_promise, buffer));
}
void async_read_some(AsyncReadStream& s, char* buffer,
size_t length, promise<size_t>::ptr completion_promise)
{
s.async_read_some(boost::asio::buffer(buffer, length), detail::read_write_handler(completion_promise));
}
void async_read_some(AsyncReadStream& s, const MutableBufferSequence& buf, promise<size_t>::ptr completion_promise)
{
s.async_read_some(buf, detail::read_write_handler(completion_promise));
}
future<size_t> read_some(AsyncReadStream& s, const MutableBufferSequence& buf)
{
promise<size_t>::ptr completion_promise(new promise<size_t>("fc::asio::async_read_some"));
s.async_read_some(buf, detail::read_write_handler(completion_promise));
return completion_promise;//->wait();
}