// Set of functions that are exported when go-waku is built as a static/dynamic library package main /* #include #include */ import "C" import ( "unsafe" mobile "github.com/waku-org/go-waku/mobile" "github.com/waku-org/go-waku/waku/v2/protocol" ) func main() {} // Initialize a waku node. Receives a JSON string containing the configuration // for the node. It can be NULL. Example configuration: // ``` // {"host": "0.0.0.0", "port": 60000, "advertiseAddr": "1.2.3.4", "nodeKey": "0x123...567", "keepAliveInterval": 20, "relay": true} // ``` // All keys are optional. If not specified a default value will be set: // - host: IP address. Default 0.0.0.0 // - port: TCP port to listen. Default 60000. Use 0 for random // - advertiseAddr: External IP // - nodeKey: secp256k1 private key. Default random // - keepAliveInterval: interval in seconds to ping all peers // - relay: Enable WakuRelay. Default `true` // - relayTopics: Array of pubsub topics that WakuRelay will automatically subscribe to when the node starts // - gossipsubParams: an object containing custom gossipsub parameters. All attributes are optional, and if not specified, it will use default values. // - d: optimal degree for a GossipSub topic mesh. Default `6` // - dLow: lower bound on the number of peers we keep in a GossipSub topic mesh. Default `5` // - dHigh: upper bound on the number of peers we keep in a GossipSub topic mesh. Default `12` // - dScore: affects how peers are selected when pruning a mesh due to over subscription. Default `4` // - dOut: sets the quota for the number of outbound connections to maintain in a topic mesh. Default `2` // - historyLength: controls the size of the message cache used for gossip. Default `5` // - historyGossip: controls how many cached message ids we will advertise in IHAVE gossip messages. Default `3` // - dLazy: affects how many peers we will emit gossip to at each heartbeat. Default `6` // - gossipFactor: affects how many peers we will emit gossip to at each heartbeat. Default `0.25` // - gossipRetransmission: controls how many times we will allow a peer to request the same message id through IWANT gossip before we start ignoring them. Default `3` // - heartbeatInitialDelayMs: short delay in milliseconds before the heartbeat timer begins after the router is initialized. Default `100` milliseconds // - heartbeatIntervalSeconds: controls the time between heartbeats. Default `1` second // - slowHeartbeatWarning: duration threshold for heartbeat processing before emitting a warning. Default `0.1` // - fanoutTTLSeconds: controls how long we keep track of the fanout state. Default `60` seconds // - prunePeers: controls the number of peers to include in prune Peer eXchange. Default `16` // - pruneBackoffSeconds: controls the backoff time for pruned peers. Default `60` seconds // - unsubscribeBackoffSeconds: controls the backoff time to use when unsuscribing from a topic. Default `10` seconds // - connectors: number of active connection attempts for peers obtained through PX. Default `8` // - maxPendingConnections: maximum number of pending connections for peers attempted through px. Default `128` // - connectionTimeoutSeconds: timeout in seconds for connection attempts. Default `30` seconds // - directConnectTicks: the number of heartbeat ticks for attempting to reconnect direct peers that are not currently connected. Default `300` // - directConnectInitialDelaySeconds: initial delay before opening connections to direct peers. Default `1` second // - opportunisticGraftTicks: number of heartbeat ticks for attempting to improve the mesh with opportunistic grafting. Default `60` // - opportunisticGraftPeers: the number of peers to opportunistically graft. Default `2` // - graftFloodThresholdSeconds: If a GRAFT comes before GraftFloodThresholdSeconds has elapsed since the last PRUNE, then there is an extra score penalty applied to the peer through P7. Default `10` seconds // - maxIHaveLength: max number of messages to include in an IHAVE message, also controls the max number of IHAVE ids we will accept and request with IWANT from a peer within a heartbeat. Default `5000` // - maxIHaveMessages: max number of IHAVE messages to accept from a peer within a heartbeat. Default `10` // - iWantFollowupTimeSeconds: Time to wait for a message requested through IWANT following an IHAVE advertisement. Default `3` seconds // - seenMessagesTTLSeconds: configures when a previously seen message ID can be forgotten about. Default `120` seconds // // - minPeersToPublish: The minimum number of peers required on a topic to allow broadcasting a message. Default `0` // - filter: Enable Filter. Default `false` // - discV5: Enable DiscoveryV5. Default `false` // - discV5BootstrapNodes: Array of bootstrap nodes ENR // - discV5UDPPort: UDP port for DiscoveryV5 // - logLevel: Set the log level. Default `INFO`. Allowed values "DEBUG", "INFO", "WARN", "ERROR", "DPANIC", "PANIC", "FATAL" // - store: Enable Store. Default `false` // - databaseURL: url connection string. Default: "sqlite3://store.db". Also accepts PostgreSQL connection strings // - storeRetentionMaxMessages: max number of messages to store in the database. Default 10000 // - storeRetentionTimeSeconds: max number of seconds that a message will be persisted in the database. Default 2592000 (30d) // //export waku_new func waku_new(configJSON *C.char) *C.char { response := mobile.NewNode(C.GoString(configJSON)) return C.CString(response) } // Starts the waku node // //export waku_start func waku_start() *C.char { response := mobile.Start() return C.CString(response) } // Stops a waku node // //export waku_stop func waku_stop() *C.char { response := mobile.Stop() return C.CString(response) } // Determine is a node is started or not // //export waku_is_started func waku_is_started() *C.char { response := mobile.IsStarted() return C.CString(response) } // Obtain the peer ID of the waku node // //export waku_peerid func waku_peerid() *C.char { response := mobile.PeerID() return C.CString(response) } // Obtain the multiaddresses the wakunode is listening to // //export waku_listen_addresses func waku_listen_addresses() *C.char { response := mobile.ListenAddresses() return C.CString(response) } // Add node multiaddress and protocol to the wakunode peerstore // //export waku_add_peer func waku_add_peer(address *C.char, protocolID *C.char) *C.char { response := mobile.AddPeer(C.GoString(address), C.GoString(protocolID)) return C.CString(response) } // Connect to peer at multiaddress. if ms > 0, cancel the function execution if it takes longer than N milliseconds // //export waku_connect func waku_connect(address *C.char, ms C.int) *C.char { response := mobile.Connect(C.GoString(address), int(ms)) return C.CString(response) } // Connect to known peer by peerID. if ms > 0, cancel the function execution if it takes longer than N milliseconds // //export waku_connect_peerid func waku_connect_peerid(peerID *C.char, ms C.int) *C.char { response := mobile.ConnectPeerID(C.GoString(peerID), int(ms)) return C.CString(response) } // Close connection to a known peer by peerID // //export waku_disconnect func waku_disconnect(peerID *C.char) *C.char { response := mobile.Disconnect(C.GoString(peerID)) return C.CString(response) } // Get number of connected peers // //export waku_peer_cnt func waku_peer_cnt() *C.char { response := mobile.PeerCnt() return C.CString(response) } // Create a content topic string according to RFC 23 // //export waku_content_topic func waku_content_topic(applicationName *C.char, applicationVersion C.uint, contentTopicName *C.char, encoding *C.char) *C.char { return C.CString(protocol.NewContentTopic(C.GoString(applicationName), uint(applicationVersion), C.GoString(contentTopicName), C.GoString(encoding)).String()) } // Create a pubsub topic string according to RFC 23 // //export waku_pubsub_topic func waku_pubsub_topic(name *C.char, encoding *C.char) *C.char { return C.CString(mobile.PubsubTopic(C.GoString(name), C.GoString(encoding))) } // Get the default pubsub topic used in waku2: /waku/2/default-waku/proto // //export waku_default_pubsub_topic func waku_default_pubsub_topic() *C.char { return C.CString(mobile.DefaultPubsubTopic()) } // Register callback to act as signal handler and receive application signals // (in JSON) which are used to react to asynchronous events in waku. The function // signature for the callback should be `void myCallback(char* signalJSON)` // //export waku_set_event_callback func waku_set_event_callback(cb unsafe.Pointer) { mobile.SetEventCallback(cb) } // Retrieve the list of peers known by the waku node // //export waku_peers func waku_peers() *C.char { response := mobile.Peers() return C.CString(response) } // Decode a waku message using a 32 bytes symmetric key. The key must be a hex encoded string with "0x" prefix // //export waku_decode_symmetric func waku_decode_symmetric(messageJSON *C.char, symmetricKey *C.char) *C.char { response := mobile.DecodeSymmetric(C.GoString(messageJSON), C.GoString(symmetricKey)) return C.CString(response) } // Decode a waku message using a secp256k1 private key. The key must be a hex encoded string with "0x" prefix // //export waku_decode_asymmetric func waku_decode_asymmetric(messageJSON *C.char, privateKey *C.char) *C.char { response := mobile.DecodeAsymmetric(C.GoString(messageJSON), C.GoString(privateKey)) return C.CString(response) }