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Commit c1c461af authored by Alex Sakhartchouk's avatar Alex Sakhartchouk
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Add LambdaMessage to SurfaceFlinger 

LambdaMessage allows for a cleaner, more compact way to create and
dispatch messages inside SurfaceFlinger. A follow up CL uses this
method, but it was isolated here to keep added functionality and
helper facilities separate.

Bug: 62215749
Test: Compile
Change-Id: I9e13e04f1b67fd60f01bcab02fe4f19c91c10bd4
(cherry picked from commit 117698b8)
parent 5a556bc7

services/surfaceflinger/MessageQueue.h

+17 −0
Original line number Diff line number Diff line
@@ -30,6 +30,8 @@ 


#include "Barrier.h"



#include <functional>



namespace android {



class IDisplayEventConnection;
@@ -58,6 +60,21 @@ private: 
    mutable Barrier barrier;

};



class LambdaMessage : public MessageBase {

public:

    explicit LambdaMessage(std::function<void()> handler)

          : MessageBase(), mHandler(std::move(handler)) {}



    bool handler() override {

        mHandler();

        // This return value is no longer checked, so it's always safe to return true

        return true;

    }



private:

    const std::function<void()> mHandler;

};



// ---------------------------------------------------------------------------



class MessageQueue {