45 lines
980 B
Go
45 lines
980 B
Go
package main
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import (
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"context"
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"code.ivysaur.me/libnmdc"
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)
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// upstreamWorker handles an NMDC connection.
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// It blocks on the current thread, caller can background it with 'go'.
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func upstreamWorker(ctx context.Context, hubAddress, username string, responseChan chan<- libnmdc.HubEvent) {
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interiorChan := make(chan libnmdc.HubEvent, 0)
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conn := libnmdc.ConnectAsync(
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&libnmdc.HubConnectionOptions{
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Address: libnmdc.HubAddress(hubAddress),
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Self: &libnmdc.UserInfo{
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Nick: username,
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ClientTag: AppName,
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ClientVersion: AppVersion,
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},
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},
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interiorChan,
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)
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for {
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select {
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case <-ctx.Done():
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conn.Disconnect()
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ctx = nil // prevent hitting this case again repeatedly - closed channel reads immediately, nil channel blocks forever
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case evt := <-interiorChan:
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responseChan <- evt // forward
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if evt.StateChange == libnmdc.CONNECTIONSTATE_DISCONNECTED && ctx.Err() != nil {
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// We're done here
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return
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}
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}
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}
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}
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