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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| // Copyright 2023 LiveKit, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package handler | ||
|
|
||
| import ( | ||
| "context" | ||
| "time" | ||
|
|
||
| "github.com/frostbyte73/core" | ||
| "google.golang.org/grpc" | ||
|
|
||
| "github.com/livekit/egress/pkg/config" | ||
| "github.com/livekit/egress/pkg/errors" | ||
| "github.com/livekit/egress/pkg/ipc" | ||
| "github.com/livekit/egress/pkg/pipeline" | ||
| "github.com/livekit/protocol/livekit" | ||
| "github.com/livekit/protocol/rpc" | ||
| "github.com/livekit/protocol/tracer" | ||
| "github.com/livekit/psrpc" | ||
| ) | ||
|
|
||
| type Handler struct { | ||
| ipc.UnimplementedEgressHandlerServer | ||
|
|
||
| conf *config.PipelineConfig | ||
| pipeline *pipeline.Controller | ||
| rpcServer rpc.EgressHandlerServer | ||
| ipcHandlerServer *grpc.Server | ||
| ipcServiceClient ipc.EgressServiceClient | ||
| ioClient rpc.IOInfoClient | ||
| kill core.Fuse | ||
| } | ||
|
|
||
| func NewHandler(conf *config.PipelineConfig, bus psrpc.MessageBus, ioClient rpc.IOInfoClient) (*Handler, error) { | ||
| ipcClient, err := ipc.NewServiceClient() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| h := &Handler{ | ||
| conf: conf, | ||
| ioClient: ioClient, | ||
| ipcHandlerServer: grpc.NewServer(), | ||
| ipcServiceClient: ipcClient, | ||
| kill: core.NewFuse(), | ||
| } | ||
|
|
||
| ipc.RegisterEgressHandlerServer(h.ipcHandlerServer, h) | ||
| if err = ipc.StartHandlerListener(h.ipcHandlerServer, conf.TmpDir); err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| rpcServer, err := rpc.NewEgressHandlerServer(h, bus) | ||
| if err != nil { | ||
| return nil, errors.Fatal(err) | ||
| } | ||
| if err = rpcServer.RegisterUpdateStreamTopic(conf.Info.EgressId); err != nil { | ||
| return nil, errors.Fatal(err) | ||
| } | ||
| if err = rpcServer.RegisterStopEgressTopic(conf.Info.EgressId); err != nil { | ||
| return nil, errors.Fatal(err) | ||
| } | ||
| h.rpcServer = rpcServer | ||
|
|
||
| ctx := context.Background() | ||
| _, _ = h.ipcServiceClient.HandlerReady(ctx, &ipc.HandlerReadyRequest{EgressId: conf.Info.EgressId}) | ||
|
|
||
| h.pipeline, err = pipeline.New(ctx, conf, h.ioClient) | ||
| if err != nil { | ||
| if !errors.IsFatal(err) { | ||
| // user error, send update | ||
| now := time.Now().UnixNano() | ||
| conf.Info.UpdatedAt = now | ||
| conf.Info.EndedAt = now | ||
| conf.Info.Status = livekit.EgressStatus_EGRESS_FAILED | ||
| conf.Info.Error = err.Error() | ||
| _, _ = h.ioClient.UpdateEgress(ctx, conf.Info) | ||
| } | ||
| return nil, err | ||
| } | ||
|
|
||
| return h, nil | ||
| } | ||
|
|
||
| func (h *Handler) Run() error { | ||
| ctx, span := tracer.Start(context.Background(), "Handler.Run") | ||
| defer span.End() | ||
|
|
||
| // start egress | ||
| result := make(chan *livekit.EgressInfo, 1) | ||
| go func() { | ||
| result <- h.pipeline.Run(ctx) | ||
| }() | ||
|
|
||
| kill := h.kill.Watch() | ||
| for { | ||
| select { | ||
| case <-kill: | ||
| // kill signal received | ||
| h.pipeline.SendEOS(ctx) | ||
|
|
||
| case res := <-result: | ||
| // recording finished | ||
| _, _ = h.ioClient.UpdateEgress(ctx, res) | ||
| h.rpcServer.Shutdown() | ||
| h.ipcHandlerServer.Stop() | ||
| return nil | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (h *Handler) Kill() { | ||
| h.kill.Break() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| // Copyright 2023 LiveKit, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package handler | ||
|
|
||
| import ( | ||
| "context" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "github.com/prometheus/client_golang/prometheus" | ||
| dto "github.com/prometheus/client_model/go" | ||
| "github.com/prometheus/common/expfmt" | ||
| "google.golang.org/grpc/codes" | ||
| "google.golang.org/grpc/status" | ||
|
|
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| "github.com/livekit/egress/pkg/errors" | ||
| "github.com/livekit/egress/pkg/ipc" | ||
| "github.com/livekit/protocol/logger" | ||
| "github.com/livekit/protocol/pprof" | ||
| "github.com/livekit/protocol/tracer" | ||
| ) | ||
|
|
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| func (h *Handler) GetPipelineDot(ctx context.Context, _ *ipc.GstPipelineDebugDotRequest) (*ipc.GstPipelineDebugDotResponse, error) { | ||
| ctx, span := tracer.Start(ctx, "Handler.GetPipelineDot") | ||
| defer span.End() | ||
|
|
||
| if h.pipeline == nil { | ||
| return nil, errors.ErrEgressNotFound | ||
| } | ||
|
|
||
| res := make(chan string, 1) | ||
| go func() { | ||
| res <- h.pipeline.GetGstPipelineDebugDot() | ||
| }() | ||
|
|
||
| select { | ||
| case r := <-res: | ||
| return &ipc.GstPipelineDebugDotResponse{ | ||
| DotFile: r, | ||
| }, nil | ||
|
|
||
| case <-time.After(2 * time.Second): | ||
| return nil, status.New(codes.DeadlineExceeded, "timed out requesting pipeline debug info").Err() | ||
| } | ||
| } | ||
|
|
||
| func (h *Handler) GetPProf(ctx context.Context, req *ipc.PProfRequest) (*ipc.PProfResponse, error) { | ||
| ctx, span := tracer.Start(ctx, "Handler.GetPProf") | ||
| defer span.End() | ||
|
|
||
| if h.pipeline == nil { | ||
| return nil, errors.ErrEgressNotFound | ||
| } | ||
|
|
||
| b, err := pprof.GetProfileData(ctx, req.ProfileName, int(req.Timeout), int(req.Debug)) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return &ipc.PProfResponse{ | ||
| PprofFile: b, | ||
| }, nil | ||
| } | ||
|
|
||
| // GetMetrics implement the handler-side gathering of metrics to return over IPC | ||
| func (h *Handler) GetMetrics(ctx context.Context, req *ipc.MetricsRequest) (*ipc.MetricsResponse, error) { | ||
| ctx, span := tracer.Start(ctx, "Handler.GetMetrics") | ||
| defer span.End() | ||
|
|
||
| metrics, err := prometheus.DefaultGatherer.Gather() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| metricsAsString, err := renderMetrics(metrics) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return &ipc.MetricsResponse{ | ||
| Metrics: metricsAsString, | ||
| }, nil | ||
| } | ||
|
|
||
| func renderMetrics(metrics []*dto.MetricFamily) (string, error) { | ||
| // Create a StringWriter to render the metrics into text format | ||
| writer := &strings.Builder{} | ||
| totalCnt := 0 | ||
| for _, metric := range metrics { | ||
| // Write each metric family to text | ||
| cnt, err := expfmt.MetricFamilyToText(writer, metric) | ||
| if err != nil { | ||
| logger.Errorw("error writing metric family", err) | ||
| return "", err | ||
| } | ||
| totalCnt += cnt | ||
| } | ||
|
|
||
| // Get the rendered metrics as a string from the StringWriter | ||
| return writer.String(), nil | ||
| } |
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