You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
365 lines
13 KiB
365 lines
13 KiB
/*
|
|
This file is part of cpp-ethereum.
|
|
|
|
cpp-ethereum is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
cpp-ethereum is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/** @file Client.h
|
|
* @author Gav Wood <i@gavwood.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <thread>
|
|
#include <mutex>
|
|
#include <list>
|
|
#include <atomic>
|
|
#include <boost/utility.hpp>
|
|
#include <libethential/Common.h>
|
|
#include <libethential/CommonIO.h>
|
|
#include <libethential/Guards.h>
|
|
#include <libevm/FeeStructure.h>
|
|
#include <libethcore/Dagger.h>
|
|
#include <libp2p/Common.h>
|
|
#include "BlockChain.h"
|
|
#include "TransactionQueue.h"
|
|
#include "State.h"
|
|
#include "CommonNet.h"
|
|
#include "PastMessage.h"
|
|
#include "MessageFilter.h"
|
|
#include "Miner.h"
|
|
|
|
namespace eth
|
|
{
|
|
|
|
class Client;
|
|
|
|
enum ClientWorkState
|
|
{
|
|
Active = 0,
|
|
Deleting,
|
|
Deleted
|
|
};
|
|
|
|
enum class NodeMode
|
|
{
|
|
PeerServer,
|
|
Full
|
|
};
|
|
|
|
class VersionChecker
|
|
{
|
|
public:
|
|
VersionChecker(std::string const& _dbPath);
|
|
|
|
void setOk();
|
|
bool ok() const { return m_ok; }
|
|
|
|
private:
|
|
bool m_ok;
|
|
std::string m_path;
|
|
};
|
|
|
|
static const int GenesisBlock = INT_MIN;
|
|
|
|
struct InstalledFilter
|
|
{
|
|
InstalledFilter(MessageFilter const& _f): filter(_f) {}
|
|
|
|
MessageFilter filter;
|
|
unsigned refCount = 1;
|
|
};
|
|
|
|
static const h256 PendingChangedFilter = u256(0);
|
|
static const h256 ChainChangedFilter = u256(1);
|
|
|
|
struct ClientWatch
|
|
{
|
|
ClientWatch() {}
|
|
explicit ClientWatch(h256 _id): id(_id) {}
|
|
|
|
h256 id;
|
|
unsigned changes = 1;
|
|
};
|
|
|
|
struct WatchChannel: public LogChannel { static const char* name() { return "(o)"; } static const int verbosity = 7; };
|
|
#define cwatch eth::LogOutputStream<eth::WatchChannel, true>()
|
|
struct WorkInChannel: public LogChannel { static const char* name() { return ">W>"; } static const int verbosity = 16; };
|
|
struct WorkOutChannel: public LogChannel { static const char* name() { return "<W<"; } static const int verbosity = 16; };
|
|
struct WorkChannel: public LogChannel { static const char* name() { return "-W-"; } static const int verbosity = 16; };
|
|
#define cwork eth::LogOutputStream<eth::WorkChannel, true>()
|
|
#define cworkin eth::LogOutputStream<eth::WorkInChannel, true>()
|
|
#define cworkout eth::LogOutputStream<eth::WorkOutChannel, true>()
|
|
|
|
/**
|
|
* @brief Main API hub for interfacing with Ethereum.
|
|
*/
|
|
class Client: public MinerHost
|
|
{
|
|
friend class Miner;
|
|
|
|
public:
|
|
/// Constructor.
|
|
explicit Client(std::string const& _clientVersion, Address _us = Address(), std::string const& _dbPath = std::string(), bool _forceClean = false);
|
|
|
|
/// Destructor.
|
|
~Client();
|
|
|
|
/// Submits the given message-call transaction.
|
|
void transact(Secret _secret, u256 _value, Address _dest, bytes const& _data = bytes(), u256 _gas = 10000, u256 _gasPrice = 10 * szabo);
|
|
|
|
/// Submits a new contract-creation transaction.
|
|
/// @returns the new contract's address (assuming it all goes through).
|
|
Address transact(Secret _secret, u256 _endowment, bytes const& _init, u256 _gas = 10000, u256 _gasPrice = 10 * szabo);
|
|
|
|
/// Injects the RLP-encoded transaction given by the _rlp into the transaction queue directly.
|
|
void inject(bytesConstRef _rlp);
|
|
|
|
/// Blocks until all pending transactions have been processed.
|
|
void flushTransactions();
|
|
|
|
/// Makes the given call. Nothing is recorded into the state.
|
|
bytes call(Secret _secret, u256 _value, Address _dest, bytes const& _data = bytes(), u256 _gas = 10000, u256 _gasPrice = 10 * szabo);
|
|
|
|
// Informational stuff
|
|
|
|
// [NEW API]
|
|
|
|
int getDefault() const { return m_default; }
|
|
void setDefault(int _block) { m_default = _block; }
|
|
|
|
u256 balanceAt(Address _a) const { return balanceAt(_a, m_default); }
|
|
u256 countAt(Address _a) const { return countAt(_a, m_default); }
|
|
u256 stateAt(Address _a, u256 _l) const { return stateAt(_a, _l, m_default); }
|
|
bytes codeAt(Address _a) const { return codeAt(_a, m_default); }
|
|
std::map<u256, u256> storageAt(Address _a) const { return storageAt(_a, m_default); }
|
|
|
|
u256 balanceAt(Address _a, int _block) const;
|
|
u256 countAt(Address _a, int _block) const;
|
|
u256 stateAt(Address _a, u256 _l, int _block) const;
|
|
bytes codeAt(Address _a, int _block) const;
|
|
std::map<u256, u256> storageAt(Address _a, int _block) const;
|
|
|
|
unsigned installWatch(MessageFilter const& _filter);
|
|
unsigned installWatch(h256 _filterId);
|
|
void uninstallWatch(unsigned _watchId);
|
|
bool peekWatch(unsigned _watchId) const { std::lock_guard<std::mutex> l(m_filterLock); try { return m_watches.at(_watchId).changes != 0; } catch (...) { return false; } }
|
|
bool checkWatch(unsigned _watchId) { std::lock_guard<std::mutex> l(m_filterLock); bool ret = false; try { ret = m_watches.at(_watchId).changes != 0; m_watches.at(_watchId).changes = 0; } catch (...) {} return ret; }
|
|
|
|
PastMessages messages(unsigned _watchId) const { try { std::lock_guard<std::mutex> l(m_filterLock); return messages(m_filters.at(m_watches.at(_watchId).id).filter); } catch (...) { return PastMessages(); } }
|
|
PastMessages messages(MessageFilter const& _filter) const;
|
|
|
|
// [EXTRA API]:
|
|
|
|
/// Get a map containing each of the pending transactions.
|
|
/// @TODO: Remove in favour of transactions().
|
|
Transactions pending() const { return m_postMine.pending(); }
|
|
|
|
/// Differences between transactions.
|
|
StateDiff diff(unsigned _txi) const { return diff(_txi, m_default); }
|
|
StateDiff diff(unsigned _txi, h256 _block) const;
|
|
StateDiff diff(unsigned _txi, int _block) const;
|
|
|
|
/// Get a list of all active addresses.
|
|
std::vector<Address> addresses() const { return addresses(m_default); }
|
|
std::vector<Address> addresses(int _block) const;
|
|
|
|
/// Get the fee associated for a transaction with the given data.
|
|
static u256 txGas(uint _dataCount, u256 _gas = 0) { return c_txDataGas * _dataCount + c_txGas + _gas; }
|
|
|
|
/// Get the remaining gas limit in this block.
|
|
u256 gasLimitRemaining() const { return m_postMine.gasLimitRemaining(); }
|
|
|
|
// [PRIVATE API - only relevant for base clients, not available in general]
|
|
|
|
eth::State state(unsigned _txi, h256 _block) const;
|
|
eth::State state(h256 _block) const;
|
|
eth::State state(unsigned _txi) const;
|
|
|
|
/// Get the object representing the current state of Ethereum.
|
|
eth::State postState() const { ReadGuard l(x_stateDB); return m_postMine; }
|
|
/// Get the object representing the current canonical blockchain.
|
|
BlockChain const& blockChain() const { return m_bc; }
|
|
|
|
// Misc stuff:
|
|
|
|
void setClientVersion(std::string const& _name) { m_clientVersion = _name; }
|
|
|
|
// Network stuff:
|
|
|
|
/// Get information on the current peer set.
|
|
std::vector<p2p::PeerInfo> peers();
|
|
/// Same as peers().size(), but more efficient.
|
|
size_t peerCount() const;
|
|
/// Same as peers().size(), but more efficient.
|
|
void setIdealPeerCount(size_t _n) const;
|
|
|
|
/// Start the network subsystem.
|
|
void startNetwork(unsigned short _listenPort = 30303, std::string const& _remoteHost = std::string(), unsigned short _remotePort = 30303, NodeMode _mode = NodeMode::Full, unsigned _peers = 5, std::string const& _publicIP = std::string(), bool _upnp = true, u256 _networkId = 0);
|
|
/// Connect to a particular peer.
|
|
void connect(std::string const& _seedHost, unsigned short _port = 30303);
|
|
/// Stop the network subsystem.
|
|
void stopNetwork();
|
|
/// Is the network subsystem up?
|
|
bool haveNetwork() { ReadGuard l(x_net); return !!m_net; }
|
|
/// Save peers
|
|
bytes savePeers();
|
|
/// Restore peers
|
|
void restorePeers(bytesConstRef _saved);
|
|
|
|
// Mining stuff:
|
|
|
|
/// Check block validity prior to mining.
|
|
bool miningParanoia() const { return m_paranoia; }
|
|
/// Change whether we check block validity prior to mining.
|
|
void setParanoia(bool _p) { m_paranoia = _p; }
|
|
/// Should we force mining to happen, even without transactions?
|
|
bool forceMining() const { return m_forceMining; }
|
|
/// Enable/disable forcing of mining to happen, even without transactions.
|
|
void setForceMining(bool _enable) { m_forceMining = _enable; }
|
|
/// Are we mining as fast as we can?
|
|
bool turboMining() const { return m_turboMining; }
|
|
/// Enable/disable fast mining.
|
|
void setTurboMining(bool _enable = true) { m_turboMining = _enable; }
|
|
|
|
/// Set the coinbase address.
|
|
void setAddress(Address _us) { m_preMine.setAddress(_us); }
|
|
/// Get the coinbase address.
|
|
Address address() const { return m_preMine.address(); }
|
|
/// Stops mining and sets the number of mining threads (0 for automatic).
|
|
void setMiningThreads(unsigned _threads = 0);
|
|
/// Get the effective number of mining threads.
|
|
unsigned miningThreads() const { ReadGuard l(x_miners); return m_miners.size(); }
|
|
/// Start mining.
|
|
/// NOT thread-safe - call it & stopMining only from a single thread
|
|
void startMining() { ensureWorking(); ReadGuard l(x_miners); for (auto& m: m_miners) m.start(); }
|
|
/// Stop mining.
|
|
/// NOT thread-safe
|
|
void stopMining() { ReadGuard l(x_miners); for (auto& m: m_miners) m.stop(); }
|
|
/// Are we mining now?
|
|
bool isMining() { ReadGuard l(x_miners); return m_miners.size() && m_miners[0].isRunning(); }
|
|
/// Check the progress of the mining.
|
|
MineProgress miningProgress() const;
|
|
/// Get and clear the mining history.
|
|
std::list<MineInfo> miningHistory();
|
|
|
|
/// Clears pending transactions. Just for debug use.
|
|
void clearPending();
|
|
|
|
private:
|
|
/// Ensure the worker thread is running. Needed for blockchain maintenance & mining.
|
|
void ensureWorking();
|
|
|
|
/// Do some work. Handles blockchain maintenance and mining.
|
|
/// @param _justQueue If true will only processing the transaction queues.
|
|
void work();
|
|
|
|
/// Do some work on the network.
|
|
void workNet();
|
|
|
|
/// Overrides for being a mining host.
|
|
virtual void setupState(State& _s);
|
|
virtual bool turbo() const { return m_turboMining; }
|
|
virtual bool force() const { return m_forceMining; }
|
|
|
|
/// Collate the changed filters for the bloom filter of the given pending transaction.
|
|
/// Insert any filters that are activated into @a o_changed.
|
|
void appendFromNewPending(h256 _pendingTransactionBloom, h256Set& o_changed) const;
|
|
|
|
/// Collate the changed filters for the hash of the given block.
|
|
/// Insert any filters that are activated into @a o_changed.
|
|
void appendFromNewBlock(h256 _blockHash, h256Set& o_changed) const;
|
|
|
|
/// Record that the set of filters @a _filters have changed.
|
|
/// This doesn't actually make any callbacks, but incrememnts some counters in m_watches.
|
|
void noteChanged(h256Set const& _filters);
|
|
|
|
/// Return the actual block number of the block with the given int-number (positive is the same, INT_MIN is genesis block, < 0 is negative age, thus -1 is most recently mined, 0 is pending.
|
|
unsigned numberOf(int _b) const;
|
|
|
|
State asOf(int _h) const;
|
|
State asOf(unsigned _h) const;
|
|
|
|
std::string m_clientVersion; ///< Our end-application client's name/version.
|
|
VersionChecker m_vc; ///< Dummy object to check & update the protocol version.
|
|
BlockChain m_bc; ///< Maintains block database.
|
|
TransactionQueue m_tq; ///< Maintains a list of incoming transactions not yet in a block on the blockchain.
|
|
BlockQueue m_bq; ///< Maintains a list of incoming blocks not yet on the blockchain (to be imported).
|
|
// TODO: remove in favour of copying m_stateDB as required and thread-safing/copying State. Have a good think about what state objects there should be. Probably want 4 (pre, post, mining, user-visible).
|
|
mutable boost::shared_mutex x_stateDB; ///< Lock on the state DB, effectively a lock on m_postMine.
|
|
OverlayDB m_stateDB; ///< Acts as the central point for the state database, so multiple States can share it.
|
|
State m_preMine; ///< The present state of the client.
|
|
State m_postMine; ///< The state of the client which we're mining (i.e. it'll have all the rewards added).
|
|
|
|
std::unique_ptr<std::thread> m_workNet; ///< The network thread.
|
|
std::atomic<ClientWorkState> m_workNetState;
|
|
mutable boost::shared_mutex x_net; ///< Lock for the network existance.
|
|
std::unique_ptr<p2p::Host> m_net; ///< Should run in background and send us events when blocks found and allow us to send blocks as required.
|
|
|
|
std::unique_ptr<std::thread> m_work; ///< The work thread.
|
|
std::atomic<ClientWorkState> m_workState;
|
|
|
|
std::vector<Miner> m_miners;
|
|
mutable boost::shared_mutex x_miners;
|
|
bool m_paranoia = false; ///< Should we be paranoid about our state?
|
|
bool m_turboMining = false; ///< Don't squander all of our time mining actually just sleeping.
|
|
bool m_forceMining = false; ///< Mine even when there are no transactions pending?
|
|
|
|
mutable std::mutex m_filterLock;
|
|
std::map<h256, InstalledFilter> m_filters;
|
|
std::map<unsigned, ClientWatch> m_watches;
|
|
|
|
int m_default = -1;
|
|
};
|
|
|
|
class Watch;
|
|
|
|
}
|
|
|
|
namespace std { void swap(eth::Watch& _a, eth::Watch& _b); }
|
|
|
|
namespace eth
|
|
{
|
|
|
|
class Watch: public boost::noncopyable
|
|
{
|
|
friend void std::swap(Watch& _a, Watch& _b);
|
|
|
|
public:
|
|
Watch() {}
|
|
Watch(Client& _c, h256 _f): m_c(&_c), m_id(_c.installWatch(_f)) {}
|
|
Watch(Client& _c, MessageFilter const& _tf): m_c(&_c), m_id(_c.installWatch(_tf)) {}
|
|
~Watch() { if (m_c) m_c->uninstallWatch(m_id); }
|
|
|
|
bool check() { return m_c ? m_c->checkWatch(m_id) : false; }
|
|
bool peek() { return m_c ? m_c->peekWatch(m_id) : false; }
|
|
PastMessages messages() const { return m_c->messages(m_id); }
|
|
|
|
private:
|
|
Client* m_c;
|
|
unsigned m_id;
|
|
};
|
|
|
|
}
|
|
|
|
namespace std
|
|
{
|
|
|
|
inline void swap(eth::Watch& _a, eth::Watch& _b)
|
|
{
|
|
swap(_a.m_c, _b.m_c);
|
|
swap(_a.m_id, _b.m_id);
|
|
}
|
|
|
|
}
|
|
|