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x/mobile/exp/sensor: simplify os thread proxifying mechanism on Android #12462

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rakyll opened this Issue Sep 3, 2015 · 0 comments

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rakyll commented Sep 3, 2015

The Android implementation of the sensor package need to initialize a ALooper. ALoopers must be accessed from the same OS thread, therefore each operation on the package must be done on a goroutine that is locked to an OS thread.

The current mechanism accepts new messages through a signal channel depending on the signals type, invokes the required functions and sets the return values. It requires each function call to be represented with a different input signal.

This mechanism could be simplified by making the locked goroutine consuming a chan of functions.

type inOut func(done chan struct{})

m.inOut <- func(done chan struct{}) {
    // do something on the locked goroutine
    // when done, close done.
    close(done) 
}

@rakyll rakyll self-assigned this Sep 3, 2015

@rakyll rakyll added this to the Unreleased milestone Sep 3, 2015

@gopherbot gopherbot added the mobile label Jul 20, 2017

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