void
onResolveSuccess(const boost::system::error_code& error,
typename resolver::iterator remoteEndpoint,
const shared_ptr<Resolver>& self)
{
scheduler::cancel(m_resolveTimeout);
if (error)
{
if (error == boost::system::errc::operation_canceled)
return;
return m_onError("Remote endpoint hostname or port cannot be resolved: " +
error.category().message(error.value()));
}
typename resolver::iterator end;
for (; remoteEndpoint != end; ++remoteEndpoint)
{
if (m_addressSelector(typename Protocol::endpoint(*remoteEndpoint).address()))
return m_onSuccess(*remoteEndpoint);
}
m_onError("No endpoint matching the specified address selector found");
}
void
onResolveSuccess(const boost::system::error_code& error,
BoostResolver::iterator remoteEndpoint,
const shared_ptr<Resolver>& self)
{
m_scheduler.cancelEvent(m_resolveTimeout);
if (error)
{
if (error == boost::system::errc::operation_canceled)
{
return;
}
return m_onError("Remote endpoint hostname or port cannot be resolved: " +
error.category().message(error.value()));
}
BoostResolver::iterator end;
for (; remoteEndpoint != end; ++remoteEndpoint)
{
IpAddress address(EndPoint(*remoteEndpoint).address());
if (m_addressSelector(address))
{
return m_onSuccess(address);
}
}
m_onError("No endpoint matching the specified address selector found");
}
void
onResolveResult(const boost::system::error_code& error,
iterator it, const shared_ptr<Resolver>& self)
{
m_scheduler.cancelEvent(m_resolveTimeout);
// ensure the Resolver isn't destructed while callbacks are still pending, see #2653
m_resolver.get_io_service().post(bind([] (const shared_ptr<Resolver>&) {}, self));
if (error) {
if (error == boost::asio::error::operation_aborted)
return;
if (m_onError)
m_onError("Hostname cannot be resolved: " + error.message());
return;
}
it = selectAddress(it);
if (it != iterator() && m_onSuccess) {
m_onSuccess(it->endpoint().address());
}
else if (m_onError) {
m_onError("No endpoints match the specified address selector");
}
}
void
onResolveError(const std::string& errorInfo,
const shared_ptr<Resolver>& self)
{
m_resolver.cancel();
m_onError(errorInfo);
}
/**
* Handle an error having been detected.
*/
void ESP_RestClient::_handleError() {
// Close the connection to the partner and then invoke the callback function
// if one exists of the error callback.
//LOG("_handleError");
_close();
if (m_onError != NULL) {
//LOG("Calling error handler");
m_onError();
}
} // End of _handleError
void
onResolveTimeout(const shared_ptr<Resolver>& self)
{
m_resolver.cancel();
// ensure the Resolver isn't destructed while callbacks are still pending, see #2653
m_resolver.get_io_service().post(bind([] (const shared_ptr<Resolver>&) {}, self));
if (m_onError)
m_onError("Hostname resolution timed out");
}
/// 压入数据
void tcp_packet_parser::Impl::sputn( char * buf, std::size_t len )
{
BOOST_ASSERT(m_buffer);
BOOST_ASSERT(m_pWrapper);
const std::size_t head_size = m_pWrapper->size_of();
while (len)
{
if (0 == m_pos)
{
// 缓冲区中无数据, 直接在上层缓冲区中尝试组包.
if (len < head_size)
{
// 不足一个封包头, 写入缓冲区即可
memcpy(m_buffer, buf, len);
m_pos += len;
return ;
}
else
{
// 有完整的封包头, 进一步检测是否有完整的封包.
std::size_t packet_len = m_pWrapper->buf_size(buf) + head_size;
if (packet_len > m_size)
{
// 封包长错误
if (m_onError) m_onError();
return ;
}
if (len < packet_len)
{
// 不足一个封包
memcpy(m_buffer, buf, len);
m_pos += len;
return ;
}
else
{
// 有完整的封包, 直接处理.
m_pWrapper->onPacket(buf, packet_len);
buf += packet_len;
len -= packet_len;
continue;
}
}
}
else if (m_pos < head_size)
{
// 缓冲区中有数据, 但不足一个封包头, 尝试拼足一个封包头
std::size_t delta = head_size - m_pos;
std::size_t cpy_size = (std::min)(delta, len);
memcpy(m_buffer + m_pos, buf, cpy_size);
m_pos += cpy_size;
buf += cpy_size;
len -= cpy_size;
continue;
}
else
{
// 缓冲区中有完整的封包头
std::size_t packet_len = m_pWrapper->buf_size(m_buffer) + head_size;
if (packet_len > m_size)
{
// 封包长错误
if (m_onError) m_onError();
m_pos = 0;
return ;
}
std::size_t delta = packet_len - m_pos;
if (delta > len)
{
// 无法拼出一个完整的封包
memcpy(m_buffer + m_pos, buf, len);
m_pos += len;
return ;
}
else
{
// 可以拼出一个完整的封包
memcpy(m_buffer + m_pos, buf, delta);
m_pWrapper->onPacket(m_buffer, m_pos + delta);
m_pos = 0;
buf += delta;
len -= delta;
continue;
}
}
}
}
