mirror of https://github.com/status-im/go-waku.git
88 lines
3.1 KiB
Go
88 lines
3.1 KiB
Go
package main
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/*
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#include <cgo_utils.h>
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*/
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import "C"
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import (
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"unsafe"
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"github.com/waku-org/go-waku/library"
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)
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// Determine if there are enough peers to publish a message on a topic. Use NULL
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// to verify the number of peers in the default pubsub topic
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//
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//export waku_relay_enough_peers
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func waku_relay_enough_peers(ctx unsafe.Pointer, topic *C.char, cb C.WakuCallBack, userData unsafe.Pointer) C.int {
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return singleFnExec(func(instance *library.WakuInstance) (string, error) {
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result, err := library.RelayEnoughPeers(instance, C.GoString(topic))
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if result {
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return "true", err
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}
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return "false", err
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}, ctx, cb, userData)
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}
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// Publish a message using waku relay and returns the message ID. Use NULL for topic to derive the pubsub topic from the contentTopic.
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// If ms is greater than 0, the broadcast of the message must happen before the timeout
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// (in milliseconds) is reached, or an error will be returned.
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//
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//export waku_relay_publish
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func waku_relay_publish(ctx unsafe.Pointer, messageJSON *C.char, topic *C.char, ms C.int, cb C.WakuCallBack, userData unsafe.Pointer) C.int {
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return singleFnExec(func(instance *library.WakuInstance) (string, error) {
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return library.RelayPublish(instance, C.GoString(messageJSON), C.GoString(topic), int(ms))
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}, ctx, cb, userData)
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}
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// Subscribe to WakuRelay to receive messages matching a content filter.
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// filterJSON must contain a JSON with this format:
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//
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// {
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// "pubsubTopic": "the pubsub topic" // optional if using autosharding, mandatory if using static or named sharding.
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// "contentTopics": ["the content topic"] // optional
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// }
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//
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// When a message is received, a "message" event is emitted containing the message and pubsub topic in which
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// the message was received
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//
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//export waku_relay_subscribe
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func waku_relay_subscribe(ctx unsafe.Pointer, filterJSON *C.char, cb C.WakuCallBack, userData unsafe.Pointer) C.int {
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instance, err := getInstance(ctx)
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if err != nil {
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onError(err, cb, userData)
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}
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err = library.RelaySubscribe(instance, C.GoString(filterJSON))
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return onError(err, cb, userData)
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}
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// Returns a json response with the list of pubsub topics the node
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// is subscribed to in WakuRelay
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//
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//export waku_relay_topics
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func waku_relay_topics(ctx unsafe.Pointer, cb C.WakuCallBack, userData unsafe.Pointer) C.int {
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return singleFnExec(func(instance *library.WakuInstance) (string, error) {
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return library.RelayTopics(instance)
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}, ctx, cb, userData)
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}
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// Closes the pubsub subscription to stop receiving messages matching a content filter
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// filterJSON must contain a JSON with this format:
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//
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// {
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// "pubsubTopic": "the pubsub topic" // optional if using autosharding, mandatory if using static or named sharding.
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// "contentTopics": ["the content topic"] // optional
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// }
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//
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//export waku_relay_unsubscribe
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func waku_relay_unsubscribe(ctx unsafe.Pointer, filterJSON *C.char, cb C.WakuCallBack, userData unsafe.Pointer) C.int {
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instance, err := getInstance(ctx)
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if err != nil {
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onError(err, cb, userData)
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}
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err = library.RelayUnsubscribe(instance, C.GoString(filterJSON))
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return onError(err, cb, userData)
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}
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