expose `SetDeadline` methods on streams

[whyrusleeping]

Most (if not all) of the stream multiplexers we have already have support for these methods on their streams. We should expose that down to the users

[jbenet]

This may be a libp2p decision. Maybe libp2p should use an abstraction like
context or proc natively. To express to users that it's really important to
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On Thu, Aug 18, 2016 at 18:54 Jeromy Johnson notifications@github.com
wrote:

Most (if not all) of the stream multiplexers we have already have support
for these methods on their streams. We should expose that down to the users

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[jbenet]

cc @diasdavid
On Thu, Aug 18, 2016 at 22:11 Juan Benet juan2@benet.ai wrote:

This may be a libp2p decision. Maybe libp2p should use an abstraction like
context or proc natively. To express to users that it's really important to
cancel
On Thu, Aug 18, 2016 at 18:54 Jeromy Johnson notifications@github.com
wrote:

Most (if not all) of the stream multiplexers we have already have support
for these methods on their streams. We should expose that down to the users

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[daviddias]

If adopted, it should be part of https://github.com/libp2p/interface-stream-muxer and set as an expectation of an implementation.

I'm not sure if I understand what is setting a deadline though, checked the code and I see that option, but when is it used?

[whyrusleeping]

@diasdavid its a common socket options, check the docs here: https://golang.org/pkg/net/#Conn

[daviddias]

@whyrusleeping got it, when do you use it?

[jbenet]

@diasdavid it's effectively a timeout, when asking to send, listen, dial, etc, but only for a given amount of time.

@whyrusleeping i would much prefer to use a context abstraction in libp2p, across languages. contexts can give you deadlines, and cancellables, etc.

[hsanjuan]

While I mostly agree with @jbenet last comment, this might be the only thing breaking go-libp2p/master:

../../../go-peerstream/stream.go:96: s.smuxStream.SetDeadline undefined (type streammux.Stream has no field or method SetDeadline)
../../../go-peerstream/stream.go:100: s.smuxStream.SetReadDeadline undefined (type streammux.Stream has no field or method SetReadDeadline)
../../../go-peerstream/stream.go:104: s.smuxStream.SetWriteDeadline undefined (type streammux.Stream has no field or method SetWriteDeadline)

And it has been recently bubbled to the Stream interface anyway https://godoc.org/github.com/libp2p/go-libp2p-net#Stream

If I attempt a fix, does it stand a chance to be accepted? Or are going to go down the road of undoing libp2p/go-libp2p-net@f657968 (go-peerstream, go-libp2p-swarm at least are affected)

[hsanjuan]

@whyrusleeping I see some work being done here too that would need to be consolidated: https://github.com/whyrusleeping/go-stream-muxer/commits/master

[victorb]

I'm trying to run the tests in this project and this is my adventure-log from it:

➜  ~ go get -d github.com/jbenet/go-stream-muxer

➜  go-stream-muxer git:(master) cd $GOPATH/src/github.com/jbenet/go-stream-muxer

➜  go-stream-muxer git:(master) make deps
go get github.com/whyrusleeping/gx
go get github.com/whyrusleeping/gx-go
gx --verbose install --global
installing package: go-stream-muxer-1.1.0
successfully found all deps for go-stream-muxer
installation of dep go-stream-muxer complete!
gx-go rewrite

➜  go-stream-muxer git:(master) make test
go get github.com/whyrusleeping/gx
go get github.com/whyrusleeping/gx-go
gx --verbose install --global
installing package: go-stream-muxer-1.1.0
successfully found all deps for go-stream-muxer
installation of dep go-stream-muxer complete!
gx-go rewrite
go test ./...
# github.com/jbenet/go-stream-muxer/suite
suite/suite_test.go:9:2: cannot find package "github.com/whyrusleeping/go-smux-spdystream" in any of:
	/usr/local/Cellar/go/1.7.4_2/libexec/src/github.com/whyrusleeping/go-smux-spdystream (from $GOROOT)
	/Users/user/go/src/github.com/whyrusleeping/go-smux-spdystream (from $GOPATH)
FAIL	github.com/jbenet/go-stream-muxer/suite [setup failed]
?   	github.com/jbenet/go-stream-muxer	[no test files]
?   	github.com/jbenet/go-stream-muxer/test	[no test files]
make: *** [test] Error 1

➜  go-stream-muxer git:(master) go get github.com/whyrusleeping/go-smux-spdystream

➜  go-stream-muxer git:(master) make test
go get github.com/whyrusleeping/gx
go get github.com/whyrusleeping/gx-go
gx --verbose install --global
installing package: go-stream-muxer-1.1.0
successfully found all deps for go-stream-muxer
installation of dep go-stream-muxer complete!
gx-go rewrite
go test ./...
# github.com/jbenet/go-stream-muxer/suite
suite/suite_test.go:10:2: cannot find package "github.com/whyrusleeping/go-smux-yamux" in any of:
	/usr/local/Cellar/go/1.7.4_2/libexec/src/github.com/whyrusleeping/go-smux-yamux (from $GOROOT)
	/Users/user/go/src/github.com/whyrusleeping/go-smux-yamux (from $GOPATH)
FAIL	github.com/jbenet/go-stream-muxer/suite [setup failed]
?   	github.com/jbenet/go-stream-muxer	[no test files]
?   	github.com/jbenet/go-stream-muxer/test	[no test files]
make: *** [test] Error 1

➜  go-stream-muxer git:(master) go get -v github.com/whyrusleeping/go-smux-yamux
github.com/whyrusleeping/go-smux-yamux (download)
github.com/hashicorp/yamux (download)
github.com/hashicorp/yamux
github.com/whyrusleeping/go-smux-yamux

➜  go-stream-muxer git:(master) make test
go get github.com/whyrusleeping/gx
go get github.com/whyrusleeping/gx-go
gx --verbose install --global
installing package: go-stream-muxer-1.1.0
successfully found all deps for go-stream-muxer
installation of dep go-stream-muxer complete!
gx-go rewrite
go test ./...
?   	github.com/jbenet/go-stream-muxer	[no test files]
# github.com/whyrusleeping/go-smux-muxado
../../whyrusleeping/go-smux-muxado/muxado.go:62: cannot use stream literal (type *stream) as type streammux.Stream in return argument:
	*stream does not implement streammux.Stream (missing SetDeadline method)
../../whyrusleeping/go-smux-muxado/muxado.go:71: cannot use stream literal (type *stream) as type streammux.Stream in return argument:
	*stream does not implement streammux.Stream (missing SetDeadline method)
FAIL	github.com/jbenet/go-stream-muxer/suite [build failed]
?   	github.com/jbenet/go-stream-muxer/test	[no test files]
make: *** [test] Error 2

In the end, seems *stream is missing SetDeadline method, which means I cannot run the tests...

[daviddias]

@victorbjelkholm try skipping muxado (not important for now).

[Stebalien]

I believe this is done. @whyrusleeping?

[whyrusleeping]

Yeah, I believe so

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On Wed, Aug 30, 2017, 7:13 PM Steven Allen ***@***.***> wrote: I believe this is done. @whyrusleeping <https://github.com/whyrusleeping>? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#10 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABL4HJIKtDJ9a7CXBfDQvbJVGGg__7tIks5sdhbIgaJpZM4Jn_r_> .