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WASM Detach #565

Merged
merged 2 commits into from
Apr 1, 2019
Merged

WASM Detach #565

merged 2 commits into from
Apr 1, 2019

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backkem
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@backkem backkem commented Mar 29, 2019

Support for Detach when targeting JS/WASM. The goal is to enable the same idiomatic API in both Native and WASM. This is a POC of the shim to turn the JS OnMessage Callback into the ReadWriteCloser interface used by the DataChannel.Detach. I tried to avoid leaking JS code into pions/datachannel by introducing an interface. Therefore this depends on pion/datachannel#11.

TODO

  • The WASM example deadlocks. Have to look into it further.
  • In order to use the same code in Native and WASM we would have to find a common solution for the way Detach is enabled in the SettingEngine in Native ATM.
  • Performance improvements. Maybe you can port your POC over @albrow?

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coveralls commented Mar 29, 2019

Pull Request Test Coverage Report for Build 2779

  • 0 of 0 changed or added relevant lines in 0 files are covered.
  • No unchanged relevant lines lost coverage.
  • Overall coverage increased (+71.6%) to 80.594%

Totals Coverage Status
Change from base Build 2775: 71.6%
Covered Lines: 3177
Relevant Lines: 3942

💛 - Coveralls

@backkem backkem changed the title [WIP] WASM Detach WASM Detach Apr 1, 2019
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backkem commented Apr 1, 2019

Fixed some small bugs in the way Blob messages are handled. This fixes the deadlock issue.

Port the API object to the JS/WASM target. This allows more
code to work for both targets.
JS/WASM shim for Detach API
// valueToDataChannelMessage may block when handling 'Blob' data
// so we need to call it from a new routine. See:
// https://godoc.org/syscall/js#FuncOf
msg := valueToDataChannelMessage(data)
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👍 Nice catch!

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@albrow albrow left a comment

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LGTM! I just suggested a comment in one place.

datachannel_js.go Show resolved Hide resolved
@backkem backkem merged commit d906c2b into master Apr 1, 2019
@backkem backkem removed the review label Apr 1, 2019
@backkem backkem deleted the wasm-detach branch April 1, 2019 19:01
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3 participants