How to pause V8 execution (for debugging) #411
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AlexTrotsenko
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Sep 28, 2018
…in Chrome DevTools: 1. Added pause on break-point in BreakHandler (work-around using CountDownLatch until proper V8 pause api found - eclipsesource/J2V8#411) 2. Store BreakHandler in Debugger and resume V8 execution by calling .resume() when requested by Chrome DevTools
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Generally all J2V8 debug API are "well documented" by test cases.
The only thing, which I am not able to find is "pause v8 execution" neither in the debug api nor in V8 itself.
I was expecting v8 being paused when
DebugEvent.Breakis received by BreakHandler - but it's not the case. V8 keep running and otherDebugEvent.Breakare fired afterwards (if other breakpoints were set before).@irbull in #293 you was mentioning, that it's possible to build debugger (using Stetho). Can you please share the info of how v8 could be paused?
E.g. I would like to pause it when
DebugEvent.Breakis received by BreakHandler and invoke resume method later manually.I was able to "hack" it by suspending Java thread in the
onBreak()call-back of BreakHandler byCountDownLatch.await(). But it does not looks like nice solution from my point of view (I suspect, that there is proper api for this) . Also I am not sure wether it will work nice with multi-threaded J2V8, which I am planing to use in the future.The text was updated successfully, but these errors were encountered: