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Fire OnRenegotiationNeeded only for the first SCTP DataChannel.

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Subsequent DataChannels do not need renegotiation since SCTP data streams are not negotiated through SDP.

BUG=2431
R=pthatcher@google.com, wu@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/12629004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6268 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
jiayl@webrtc.org 2014-05-29 15:31:11 +00:00
parent 9aa7d8df95
commit 001fd2d503
2 changed files with 29 additions and 1 deletions

8
talk/app/webrtc/peerconnection.cc

@ -482,6 +482,8 @@ talk_base::scoped_refptr<DataChannelInterface>
PeerConnection::CreateDataChannel(
const std::string& label,
const DataChannelInit* config) {
bool first_datachannel = !mediastream_signaling_->HasDataChannels();
talk_base::scoped_ptr<InternalDataChannelInit> internal_config;
if (config) {
internal_config.reset(new InternalDataChannelInit(*config));
@ -491,7 +493,11 @@ PeerConnection::CreateDataChannel(
if (!channel.get())
return NULL;
observer_->OnRenegotiationNeeded();
// Trigger the onRenegotiationNeeded event for every new RTP DataChannel, or
// the first SCTP DataChannel.
if (session_->data_channel_type() == cricket::DCT_RTP || first_datachannel) {
observer_->OnRenegotiationNeeded();
}
return DataChannelProxy::Create(signaling_thread(), channel.get());
}

22
talk/app/webrtc/peerconnectioninterface_unittest.cc

@ -946,23 +946,28 @@ TEST_F(PeerConnectionInterfaceTest, CreateSctpDataChannel) {
pc_->CreateDataChannel("1", &config);
EXPECT_TRUE(channel != NULL);
EXPECT_TRUE(channel->reliable());
EXPECT_TRUE(observer_.renegotiation_needed_);
observer_.renegotiation_needed_ = false;
config.ordered = false;
channel = pc_->CreateDataChannel("2", &config);
EXPECT_TRUE(channel != NULL);
EXPECT_TRUE(channel->reliable());
EXPECT_FALSE(observer_.renegotiation_needed_);
config.ordered = true;
config.maxRetransmits = 0;
channel = pc_->CreateDataChannel("3", &config);
EXPECT_TRUE(channel != NULL);
EXPECT_FALSE(channel->reliable());
EXPECT_FALSE(observer_.renegotiation_needed_);
config.maxRetransmits = -1;
config.maxRetransmitTime = 0;
channel = pc_->CreateDataChannel("4", &config);
EXPECT_TRUE(channel != NULL);
EXPECT_FALSE(channel->reliable());
EXPECT_FALSE(observer_.renegotiation_needed_);
}
// This tests that no data channel is returned if both maxRetransmits and
@ -1012,6 +1017,23 @@ TEST_F(PeerConnectionInterfaceTest,
EXPECT_TRUE(channel == NULL);
}
// This test verifies that OnRenegotiationNeeded is fired for every new RTP
// DataChannel.
TEST_F(PeerConnectionInterfaceTest, RenegotiationNeededForNewRtpDataChannel) {
FakeConstraints constraints;
constraints.SetAllowRtpDataChannels();
CreatePeerConnection(&constraints);
scoped_refptr<DataChannelInterface> dc1 =
pc_->CreateDataChannel("test1", NULL);
EXPECT_TRUE(observer_.renegotiation_needed_);
observer_.renegotiation_needed_ = false;
scoped_refptr<DataChannelInterface> dc2 =
pc_->CreateDataChannel("test2", NULL);
EXPECT_TRUE(observer_.renegotiation_needed_);
}
// This test that a data channel closes when a PeerConnection is deleted/closed.
TEST_F(PeerConnectionInterfaceTest, DataChannelCloseWhenPeerConnectionClose) {
FakeConstraints constraints;