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|
//go:build !js
// +build !js
package webrtc
import (
"github.com/pion/webrtc/v3/internal/util"
)
type testORTCStack struct {
api *API
gatherer *ICEGatherer
ice *ICETransport
dtls *DTLSTransport
sctp *SCTPTransport
}
func (s *testORTCStack) setSignal(sig *testORTCSignal, isOffer bool) error {
iceRole := ICERoleControlled
if isOffer {
iceRole = ICERoleControlling
}
err := s.ice.SetRemoteCandidates(sig.ICECandidates)
if err != nil {
return err
}
// Start the ICE transport
err = s.ice.Start(nil, sig.ICEParameters, &iceRole)
if err != nil {
return err
}
// Start the DTLS transport
err = s.dtls.Start(sig.DTLSParameters)
if err != nil {
return err
}
// Start the SCTP transport
err = s.sctp.Start(sig.SCTPCapabilities)
if err != nil {
return err
}
return nil
}
func (s *testORTCStack) getSignal() (*testORTCSignal, error) {
gatherFinished := make(chan struct{})
s.gatherer.OnLocalCandidate(func(i *ICECandidate) {
if i == nil {
close(gatherFinished)
}
})
if err := s.gatherer.Gather(); err != nil {
return nil, err
}
<-gatherFinished
iceCandidates, err := s.gatherer.GetLocalCandidates()
if err != nil {
return nil, err
}
iceParams, err := s.gatherer.GetLocalParameters()
if err != nil {
return nil, err
}
dtlsParams, err := s.dtls.GetLocalParameters()
if err != nil {
return nil, err
}
sctpCapabilities := s.sctp.GetCapabilities()
return &testORTCSignal{
ICECandidates: iceCandidates,
ICEParameters: iceParams,
DTLSParameters: dtlsParams,
SCTPCapabilities: sctpCapabilities,
}, nil
}
func (s *testORTCStack) close() error {
var closeErrs []error
if err := s.sctp.Stop(); err != nil {
closeErrs = append(closeErrs, err)
}
if err := s.ice.Stop(); err != nil {
closeErrs = append(closeErrs, err)
}
return util.FlattenErrs(closeErrs)
}
type testORTCSignal struct {
ICECandidates []ICECandidate
ICEParameters ICEParameters
DTLSParameters DTLSParameters
SCTPCapabilities SCTPCapabilities
}
func newORTCPair() (stackA *testORTCStack, stackB *testORTCStack, err error) {
sa, err := newORTCStack()
if err != nil {
return nil, nil, err
}
sb, err := newORTCStack()
if err != nil {
return nil, nil, err
}
return sa, sb, nil
}
func newORTCStack() (*testORTCStack, error) {
// Create an API object
api := NewAPI()
// Create the ICE gatherer
gatherer, err := api.NewICEGatherer(ICEGatherOptions{})
if err != nil {
return nil, err
}
// Construct the ICE transport
ice := api.NewICETransport(gatherer)
// Construct the DTLS transport
dtls, err := api.NewDTLSTransport(ice, nil)
if err != nil {
return nil, err
}
// Construct the SCTP transport
sctp := api.NewSCTPTransport(dtls)
return &testORTCStack{
api: api,
gatherer: gatherer,
ice: ice,
dtls: dtls,
sctp: sctp,
}, nil
}
func signalORTCPair(stackA *testORTCStack, stackB *testORTCStack) error {
sigA, err := stackA.getSignal()
if err != nil {
return err
}
sigB, err := stackB.getSignal()
if err != nil {
return err
}
a := make(chan error)
b := make(chan error)
go func() {
a <- stackB.setSignal(sigA, false)
}()
go func() {
b <- stackA.setSignal(sigB, true)
}()
errA := <-a
errB := <-b
closeErrs := []error{errA, errB}
return util.FlattenErrs(closeErrs)
}
|
