void chain_connect_loop()
{
_chain_connected = false;
while( true ) //!_quit_promise->ready() )
{
//for( auto itr = _config->default_mail_nodes.begin(); itr != _config->default_mail_nodes.end(); ++itr )
{
try {
//ilog( "mail connect ${e}", ("e",*itr) );
_chain_con.connect(fc::ip::endpoint::from_string("127.0.0.1:4567"));
// _chain_con.set_last_sync_time( _profile->get_last_sync_time() );
subscribe_message msg;
msg.version = 0;
if( chain.head_block_num() != uint32_t(-1) )
msg.last_block = chain.head_block_id();
_chain_con.send( mail::message( msg ) );
_chain_connected = true;
return;
}
catch ( const fc::exception& e )
{
wlog( "${e}", ("e",e.to_detail_string()));
}
}
fc::usleep( fc::seconds(5) );
}
}
void chain_connect_loop()
{
_chain_connected = false;
while( !chain_connect_loop_complete.canceled() )
{
for( auto itr = _config.unique_node_list.begin(); itr != _config.unique_node_list.end(); ++itr )
{
try {
std::cout<< "\rconnecting to bitshares network: "<<itr->first<<"\n";
// TODO: pass public key to connection so we can avoid man-in-the-middle attacks
_chain_con.connect( fc::ip::endpoint::from_string(itr->first) );
subscribe_message msg;
msg.version = 0;
if( chain.head_block_num() != uint32_t(-1) )
{
msg.last_block = chain.head_block_id();
}
_chain_con.send( mail::message( msg ) );
std::cout<< "\rconnected to bitshares network\n";
_chain_connected = true;
return;
}
catch ( const fc::exception& e )
{
std::cout<< "\runable to connect to bitshares network at this time.\n";
wlog( "${e}", ("e",e.to_detail_string()));
}
}
// sleep in .5 second increments so we can quit quickly without hanging
for( uint32_t i = 0; i < 30 && !chain_connect_loop_complete.canceled(); ++i )
fc::usleep( fc::microseconds(500000) );
}
}
virtual void on_connection_disconnected( chain_connection& c )
{
try {
ilog( "cleaning up connection after disconnect ${e}", ("e", c.remote_endpoint()) );
auto cptr = c.shared_from_this();
FC_ASSERT( cptr );
if( ser_del ) ser_del->on_disconnected( cptr );
auto itr = connections.find(c.remote_endpoint());
connections.erase( itr ); //c.remote_endpoint() );
// we cannot close/delete the connection from this callback or we will hang the fiber
fc::async( [cptr]() {} );
} FC_RETHROW_EXCEPTIONS( warn, "error thrown handling disconnect" );
}
/**
* This is called every time a message is received from c, there are only two
* messages supported: seek to time and broadcast. When a message is
* received it goes into the database which all of the connections are
* reading from and sending to their clients.
*
* The difficulty required adjusts every 5 minutes with the goal of maintaining
* an average data rate of 1.5 kb/sec from all connections.
*/
virtual void on_connection_message( chain_connection& c, const message& m )
{
if( m.type == chain_message_type::subscribe_msg )
{
auto sm = m.as<subscribe_message>();
ilog( "recv: ${m}", ("m",sm) );
c.set_last_block_id( sm.last_block );
c.exec_sync_loop();
}
else if( m.type == block_message::type )
{
try {
auto blk = m.as<block_message>();
chain.push_block( blk.block_data );
for( auto itr = blk.block_data.trxs.begin(); itr != blk.block_data.trxs.end(); ++itr )
{
pending.erase( itr->id() );
}
broadcast_block( blk.block_data );
}
catch ( const fc::exception& e )
{
trx_err_message reply;
reply.err = e.to_detail_string();
wlog( "${e}", ("e", e.to_detail_string() ) );
c.send( message( reply ) );
c.close();
}
}
else if( m.type == chain_message_type::trx_msg )
{
auto trx = m.as<trx_message>();
ilog( "recv: ${m}", ("m",trx) );
try
{
chain.evaluate_signed_transaction( trx.signed_trx ); // throws exception if invalid trx.
if( pending.insert( std::make_pair(trx.signed_trx.id(),trx.signed_trx) ).second )
{
fc::async( [=]() { broadcast( m ); } );
}
}
catch ( const fc::exception& e )
{
trx_err_message reply;
reply.signed_trx = trx.signed_trx;
reply.err = e.to_detail_string();
wlog( "${e}", ("e", e.to_detail_string() ) );
c.send( message( reply ) );
c.close();
}
}
else
{
trx_err_message reply;
reply.err = "unsupported message type";
wlog( "unsupported message type" );
c.send( message( reply ) );
c.close();
}
}
/**
* This is called every time a message is received from c, there are only two
* messages supported: seek to time and broadcast. When a message is
* received it goes into the database which all of the connections are
* reading from and sending to their clients.
*
* The difficulty required adjusts every 5 minutes with the goal of maintaining
* an average data rate of 1.5 kb/sec from all connections.
*/
virtual void on_connection_message( chain_connection& c, const message& m )
{
if( m.msg_type == chain_message_type::subscribe_msg )
{
auto sm = m.as<subscribe_message>();
ilog( "recv: ${m}", ("m",sm) );
c.set_last_block_id( sm.last_block );
c.exec_sync_loop();
}
else if( m.msg_type == block_message::type )
{
try {
auto blk = m.as<block_message>();
_chain->push_block( blk.block_data );
for( auto trx : blk.block_data.trxs )
{
_pending.erase( trx.id() );
}
broadcast_block( blk.block_data );
}
catch ( const fc::exception& e )
{
trx_err_message reply;
reply.err = e.to_detail_string();
wlog( "${e}", ("e", e.to_detail_string() ) );
c.send( message( reply ) );
c.close();
}
}
else if( m.msg_type == chain_message_type::trx_msg )
{
auto trx = m.as<trx_message>();
ilog( "recv: ${m}", ("m",trx) );
try
{
_chain->evaluate_transaction( trx.signed_trx ); // throws if error
if( _pending.insert( std::make_pair(trx.signed_trx.id(),trx.signed_trx) ).second )
{
ilog( "new transaction, broadcasting" );
fc::async( [=]() { broadcast( m ); } );
}
else
{
wlog( "duplicate transaction, ignoring" );
}
}
catch ( const fc::exception& e )
{
trx_err_message reply;
reply.signed_trx = trx.signed_trx;
reply.err = e.to_detail_string();
wlog( "${e}", ("e", e.to_detail_string() ) );
c.send( message( reply ) );
c.close();
}
}
else
{
trx_err_message reply;
reply.err = "unsupported message type";
wlog( "unsupported message type" );
c.send( message( reply ) );
c.close();
}
}
