Move the sink pool to be a shared tool
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5c3e2c2c94
commit
0f2e9fcc0b
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@ -7,6 +7,7 @@ import (
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"emperror.dev/errors"
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"github.com/goccy/go-json"
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"github.com/pterodactyl/wings/system"
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"github.com/pterodactyl/wings/events"
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"github.com/pterodactyl/wings/server"
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@ -92,8 +93,8 @@ func (h *Handler) listenForServerEvents(ctx context.Context) error {
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logOutput := make(chan []byte, 8)
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installOutput := make(chan []byte, 4)
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h.server.Events().On(eventChan, e...)
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h.server.Sink(server.LogSink).On(logOutput)
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h.server.Sink(server.InstallSink).On(installOutput)
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h.server.Sink(system.LogSink).On(logOutput)
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h.server.Sink(system.InstallSink).On(installOutput)
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onError := func(evt string, err2 error) {
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h.Logger().WithField("event", evt).WithField("error", err2).Error("failed to send event over server websocket")
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@ -149,8 +150,8 @@ func (h *Handler) listenForServerEvents(ctx context.Context) error {
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// These functions will automatically close the channel if it hasn't been already.
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h.server.Events().Off(eventChan, e...)
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h.server.Sink(server.LogSink).Off(logOutput)
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h.server.Sink(server.InstallSink).Off(installOutput)
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h.server.Sink(system.LogSink).Off(logOutput)
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h.server.Sink(system.InstallSink).Off(installOutput)
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// If the internal context is stopped it is either because the parent context
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// got canceled or because we ran into an error. If the "err" variable is nil
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@ -2,6 +2,7 @@ package server
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import (
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"github.com/pterodactyl/wings/events"
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"github.com/pterodactyl/wings/system"
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)
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// Defines all of the possible output events for a server.
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@ -20,7 +21,7 @@ const (
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TransferStatusEvent = "transfer status"
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)
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// Returns the server's emitter instance.
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// Events returns the server's emitter instance.
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func (s *Server) Events() *events.Bus {
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s.emitterLock.Lock()
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defer s.emitterLock.Unlock()
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@ -31,3 +32,24 @@ func (s *Server) Events() *events.Bus {
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return s.emitter
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}
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// Sink returns the instantiated and named sink for a server. If the sink has
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// not been configured yet this function will cause a panic condition.
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func (s *Server) Sink(name system.SinkName) *system.SinkPool {
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sink, ok := s.sinks[name]
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if !ok {
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s.Log().Fatalf("attempt to access nil sink: %s", name)
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}
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return sink
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}
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// DestroyAllSinks iterates over all of the sinks configured for the server and
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// destroys their instances. Note that this will cause a panic if you attempt
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// to call Server.Sink() again after. This function is only used when a server
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// is being deleted from the system.
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func (s *Server) DestroyAllSinks() {
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s.Log().Info("destroying all registered sinks for server instance")
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for _, sink := range s.sinks {
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sink.Destroy()
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}
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}
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@ -522,7 +522,7 @@ func (ip *InstallationProcess) StreamOutput(ctx context.Context, id string) erro
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}
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defer reader.Close()
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err = system.ScanReader(reader, ip.Server.Sink(InstallSink).Push)
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err = system.ScanReader(reader, ip.Server.Sink(system.InstallSink).Push)
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if err != nil {
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ip.Server.Log().WithFields(log.Fields{"container_id": id, "error": err}).Warn("error processing install output lines")
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}
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@ -8,6 +8,7 @@ import (
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"time"
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"github.com/apex/log"
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"github.com/pterodactyl/wings/system"
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"github.com/pterodactyl/wings/environment"
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"github.com/pterodactyl/wings/events"
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@ -73,7 +74,7 @@ func (s *Server) processConsoleOutputEvent(v []byte) {
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return
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}
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s.Sink(LogSink).Push(v)
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s.Sink(system.LogSink).Push(v)
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}
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// StartEventListeners adds all the internal event listeners we want to use for
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@ -70,10 +70,10 @@ type Server struct {
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wsBag *WebsocketBag
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wsBagLocker sync.Mutex
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sinks map[SinkName]*sinkPool
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sinks map[system.SinkName]*system.SinkPool
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logSink *sinkPool
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installSink *sinkPool
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logSink *system.SinkPool
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installSink *system.SinkPool
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}
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// New returns a new server instance with a context and all of the default
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@ -88,9 +88,9 @@ func New(client remote.Client) (*Server, error) {
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transferring: system.NewAtomicBool(false),
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restoring: system.NewAtomicBool(false),
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powerLock: system.NewLocker(),
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sinks: map[SinkName]*sinkPool{
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LogSink: newSinkPool(),
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InstallSink: newSinkPool(),
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sinks: map[system.SinkName]*system.SinkPool{
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system.LogSink: system.NewSinkPool(),
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system.InstallSink: system.NewSinkPool(),
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},
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}
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if err := defaults.Set(&s); err != nil {
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@ -1,4 +1,4 @@
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package server
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package system
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import (
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"sync"
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@ -16,20 +16,20 @@ const (
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InstallSink SinkName = "install"
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)
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// sinkPool represents a pool with sinks.
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type sinkPool struct {
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// SinkPool represents a pool with sinks.
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type SinkPool struct {
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mu sync.RWMutex
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sinks []chan []byte
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}
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// newSinkPool returns a new empty sinkPool. A sink pool generally lives with a
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// NewSinkPool returns a new empty SinkPool. A sink pool generally lives with a
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// server instance for it's full lifetime.
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func newSinkPool() *sinkPool {
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return &sinkPool{}
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func NewSinkPool() *SinkPool {
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return &SinkPool{}
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}
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// On adds a channel to the sink pool instance.
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func (p *sinkPool) On(c chan []byte) {
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func (p *SinkPool) On(c chan []byte) {
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p.mu.Lock()
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p.sinks = append(p.sinks, c)
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p.mu.Unlock()
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@ -37,7 +37,7 @@ func (p *sinkPool) On(c chan []byte) {
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// Off removes a given channel from the sink pool. If no matching sink is found
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// this function is a no-op. If a matching channel is found, it will be removed.
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func (p *sinkPool) Off(c chan []byte) {
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func (p *SinkPool) Off(c chan []byte) {
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p.mu.Lock()
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defer p.mu.Unlock()
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@ -66,7 +66,7 @@ func (p *sinkPool) Off(c chan []byte) {
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// Destroy destroys the pool by removing and closing all sinks and destroying
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// all of the channels that are present.
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func (p *sinkPool) Destroy() {
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func (p *SinkPool) Destroy() {
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p.mu.Lock()
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defer p.mu.Unlock()
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@ -95,7 +95,7 @@ func (p *sinkPool) Destroy() {
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// likely the best option anyways. This uses waitgroups to allow every channel
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// to attempt its send concurrently thus making the total blocking time of this
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// function "O(1)" instead of "O(n)".
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func (p *sinkPool) Push(data []byte) {
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func (p *SinkPool) Push(data []byte) {
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p.mu.RLock()
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defer p.mu.RUnlock()
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var wg sync.WaitGroup
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@ -119,24 +119,3 @@ func (p *sinkPool) Push(data []byte) {
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}
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wg.Wait()
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}
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// Sink returns the instantiated and named sink for a server. If the sink has
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// not been configured yet this function will cause a panic condition.
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func (s *Server) Sink(name SinkName) *sinkPool {
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sink, ok := s.sinks[name]
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if !ok {
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s.Log().Fatalf("attempt to access nil sink: %s", name)
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}
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return sink
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}
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// DestroyAllSinks iterates over all of the sinks configured for the server and
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// destroys their instances. Note that this will cause a panic if you attempt
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// to call Server.Sink() again after. This function is only used when a server
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// is being deleted from the system.
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func (s *Server) DestroyAllSinks() {
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s.Log().Info("destroying all registered sinks for server instance")
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for _, sink := range s.sinks {
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sink.Destroy()
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}
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}
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@ -1,4 +1,4 @@
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package server
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package system
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import (
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"fmt"
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@ -23,7 +23,7 @@ func TestSink(t *testing.T) {
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g.Describe("SinkPool#On", func() {
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g.It("pushes additional channels to a sink", func() {
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pool := &sinkPool{}
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pool := &SinkPool{}
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g.Assert(pool.sinks).IsZero()
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@ -36,9 +36,9 @@ func TestSink(t *testing.T) {
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})
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g.Describe("SinkPool#Off", func() {
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var pool *sinkPool
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var pool *SinkPool
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g.BeforeEach(func() {
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pool = &sinkPool{}
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pool = &SinkPool{}
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})
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g.It("works when no sinks are registered", func() {
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@ -97,9 +97,9 @@ func TestSink(t *testing.T) {
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})
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g.Describe("SinkPool#Push", func() {
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var pool *sinkPool
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var pool *SinkPool
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g.BeforeEach(func() {
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pool = &sinkPool{}
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pool = &SinkPool{}
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})
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g.It("works when no sinks are registered", func() {
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@ -190,9 +190,9 @@ func TestSink(t *testing.T) {
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})
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g.Describe("SinkPool#Destroy", func() {
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var pool *sinkPool
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var pool *SinkPool
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g.BeforeEach(func() {
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pool = &sinkPool{}
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pool = &SinkPool{}
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})
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g.It("works if no sinks are registered", func() {
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