Difference between revisions of "Libbitcoin Network"

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(Initial useful content.)
(Example)
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==Example==
 
==Example==
  TODO
+
  #include <future>
 +
#include <bitcoin/network.hpp>
 
   
 
   
 +
// Send a transaction to a single P2P node.
 +
int main(int argc, char* argv[])
 +
{
 +
    using namespace bc;
 +
 +
    data_chunk decoded;
 +
    if (argc < 1 || !decode_base16(decoded, argv[0]))
 +
        return -1;
 +
 +
    const auto tx = chain::transaction::factory_from_data(decoded);
 +
 +
    auto settings = network::settings::mainnet;
 +
    settings.inbound_port = 0;
 +
    settings.host_pool_capacity = 0;
 +
    settings.outbound_connections = 0;
 +
    settings.relay_transactions = false;
 +
 +
    network::p2p network(settings);
 +
    std::promise<code> complete;
 +
 +
    const auto send_handler = [&complete](const code& ec)
 +
    {
 +
        complete.set_value(ec);
 +
    };
 +
 +
    const auto connect_handler = [&tx , &send_handler](const code& ec,
 +
        network::channel::ptr node)
 +
    {
 +
        if (!ec)
 +
            node->send(tx, send_handler);
 +
    };
 +
 +
    return complete.get_future().get() ? -1 : 0;
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}
 +
 
==History==
 
==History==
 
* The P2P protocol was originally contained within the [[Libbitcoin_Common|libbitcoin]] library.
 
* The P2P protocol was originally contained within the [[Libbitcoin_Common|libbitcoin]] library.

Revision as of 11:27, 4 February 2016

The libbitcoin-network library is a partial implementation of the Bitcoin P2P network protocol. Excluded are all sub-protocols that require access to a blockchain. The libbitcoin-node library extends this P2P networking capability and incorporates libbitcoin-blockchain in order to implement a full node. The libbitcoin-explorer library uses the P2P networking capability to post transactions to the P2P network.

Example

#include <future>
#include <bitcoin/network.hpp>

// Send a transaction to a single P2P node.
int main(int argc, char* argv[])
{
    using namespace bc;
    data_chunk decoded;
    if (argc < 1 || !decode_base16(decoded, argv[0]))
        return -1;
    const auto tx = chain::transaction::factory_from_data(decoded);
    auto settings = network::settings::mainnet;
    settings.inbound_port = 0;
    settings.host_pool_capacity = 0;
    settings.outbound_connections = 0;
    settings.relay_transactions = false;
    network::p2p network(settings);
    std::promise complete;
    const auto send_handler = [&complete](const code& ec)
    {
        complete.set_value(ec);
    };
    const auto connect_handler = [&tx , &send_handler](const code& ec,
        network::channel::ptr node)
    {
        if (!ec)
            node->send(tx, send_handler);
    };
    return complete.get_future().get() ? -1 : 0;
}

History

  • The P2P protocol was originally contained within the libbitcoin library.
  • In the winter of 2014 William Swanson reorganized libbitcoin sources[1] in accordance with the roadmap[2] agreed in Toronto earlier that year.
  • Later sources were moved into the libbitcoin::network namespace, and by early 2016 the namespace was forked into its own repository and integrated with dependent repositories as of version 3.

Dependencies

See Also

References