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package client
import (
"context"
"log"
"time"
"codeberg.org/snonux/gorum/internal/config"
"codeberg.org/snonux/gorum/internal/vote"
)
func Start(ctx context.Context, conf config.Config, myVoteCh <-chan vote.Vote) {
log.Println("client: starting")
fanOut := make([]chan vote.Vote, len(conf.Nodes))
nodeNum := 0
for _, node := range conf.Nodes {
fanOut[nodeNum] = startConnection(ctx, node.Hostname)
nodeNum++
}
go func() {
defer func() {
for _, ch := range fanOut {
close(ch)
}
}()
for {
select {
case myVote := <-myVoteCh:
log.Printf("client: notifying live nodes %v to all partner nodes", myVote)
for _, ch := range fanOut {
// First, clear previous element of the channel, if any
select {
case <-ch:
default:
}
// Now, update channel with the new live nodes.
ch <- myVote
}
case <-ctx.Done():
return
}
}
}()
}
func startConnection(ctx context.Context, node string) chan vote.Vote {
ch := make(chan vote.Vote, 1)
go func() {
for {
log.Println("client: starting connection", node)
if err := tcpClientRun(ctx, node, ch); err != nil {
log.Println("client: not connected to node", node, "anymore:", err)
}
select {
case <-time.After(time.Second * 10):
case <-ctx.Done():
return
}
}
}()
return ch
}
|
