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Merge pull request #77 from kradalby/deadlierlocks

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Remove more deadlocks
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Juan Font 2021-08-07 01:05:01 +02:00 committed by GitHub
commit bb2ccfddd9
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 3 additions and 11 deletions
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11
api.go
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@ -298,13 +298,8 @@ func (h *Headscale) PollNetMapHandler(c *gin.Context) {
Str("handler", "PollNetMap"). Str("handler", "PollNetMap").
Str("id", c.Param("id")). Str("id", c.Param("id")).
Str("machine", m.Name). Str("machine", m.Name).
Msg("Locking poll mutex") Msg("Storing update channel")
h.clientsPolling.Store(m.ID, update) h.clientsPolling.Store(m.ID, update)
log.Trace().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Str("machine", m.Name).
Msg("Unlocking poll mutex")
data, err := h.getMapResponse(mKey, req, m) data, err := h.getMapResponse(mKey, req, m)
if err != nil { if err != nil {
@ -460,7 +455,6 @@ func (h *Headscale) keepAlive(cancel chan []byte, pollData chan []byte, mKey wgk
return return
default: default:
h.pollMu.Lock()
data, err := h.getMapKeepAliveResponse(mKey, req, m) data, err := h.getMapKeepAliveResponse(mKey, req, m)
if err != nil { if err != nil {
log.Error(). log.Error().
@ -469,12 +463,13 @@ func (h *Headscale) keepAlive(cancel chan []byte, pollData chan []byte, mKey wgk
Msg("Error generating the keep alive msg") Msg("Error generating the keep alive msg")
return return
} }
log.Debug(). log.Debug().
Str("func", "keepAlive"). Str("func", "keepAlive").
Str("machine", m.Name). Str("machine", m.Name).
Msg("Sending keepalive") Msg("Sending keepalive")
pollData <- *data pollData <- *data
h.pollMu.Unlock()
time.Sleep(60 * time.Second) time.Sleep(60 * time.Second)
} }
} }

1
app.go
View file

@ -58,7 +58,6 @@ type Headscale struct {
aclPolicy *ACLPolicy aclPolicy *ACLPolicy
aclRules *[]tailcfg.FilterRule aclRules *[]tailcfg.FilterRule
pollMu sync.Mutex
clientsPolling sync.Map clientsPolling sync.Map
} }

2
routes.go
View file

@ -50,13 +50,11 @@ func (h *Headscale) EnableNodeRoute(namespace string, nodeName string, routeStr
// Definetely not accessible from the CLI tool. // Definetely not accessible from the CLI tool.
// We need RPC to the server - or some kind of 'needsUpdate' field in the DB // We need RPC to the server - or some kind of 'needsUpdate' field in the DB
peers, _ := h.getPeers(*m) peers, _ := h.getPeers(*m)
h.pollMu.Lock()
for _, p := range *peers { for _, p := range *peers {
if pUp, ok := h.clientsPolling.Load(uint64(p.ID)); ok { if pUp, ok := h.clientsPolling.Load(uint64(p.ID)); ok {
pUp.(chan []byte) <- []byte{} pUp.(chan []byte) <- []byte{}
} }
} }
h.pollMu.Unlock()
return &rIP, nil return &rIP, nil
} }
} }