Help! IAB crash on iOS

totebo

I get a mysterious crash after I tap "buy" or "cancel" in the "Confirm your In-App Purchase" dialogue. When I debug in XCode I get a bunch of machine code errors, rather than readable stuff.

Any ideas?!

When debugging I've concluded that:

- The crash always happens if I use event listeners (Event.PRODUCTS_COMPLETE, Event.PRODUCTS_ERROR)
- If no event listeners are used it doesn't crash and the purchase appears to complete successfully. When I tap to purchase a second time, however, the app immediately closes down (without a dialogue).
- Exporting to iOS 7 doesn't solve the problem

Build info:
- Using 2016-06 "iab" plugin
- It's a modified version of GiderosiOSPlayer with the name and package changed to work with iTunes
- Also uses the "gaming" plugin, which works fine

totebo

Here is the log that XCode spits out. Each line comes with a nice bunch of machine code, but I think it's probably not useful.

Thread 1Queue : com.apple.main-thread (serial) #0 0x000000010772a7b0 in NetworkBase::isConnected() const [inlined] at /Users/ar2rsawseen/gideros/libnetwork/libnetwork.cpp:255 #1 0x000000010772a7b0 in NetworkBase::sendData(void const*, unsigned int) at /Users/ar2rsawseen/gideros/libnetwork/libnetwork.cpp:425 #2 0x00000001077b9a34 in NetworkManager::printToServer(char const*, int) at /Users/ar2rsawseen/gideros/ios/iosplayer/iosplayer/giderosapi.mm:186 #3 0x000000010767e335 in luaB_print at /Users/ar2rsawseen/gideros/lua/src/lbaselib.c:45 #4 0x0000000107670b2f in luaD_precall at /Users/ar2rsawseen/gideros/lua/src/ldo.c:319 #5 0x0000000107671600 in luaV_execute at /Users/ar2rsawseen/gideros/lua/src/lvm.c:587 #6 0x000000010766d1ef in luaD_call at /Users/ar2rsawseen/gideros/lua/src/ldo.c:377 #7 0x000000010766d163 in lua_call at /Users/ar2rsawseen/gideros/lua/src/lapi.c:782 #8 0x000000010779abe6 in eventClosureWithData(lua_State*) at /Users/ar2rsawseen/gideros/luabinding/eventdispatcherbinder.cpp:931 #9 0x0000000107670b2f in luaD_precall at /Users/ar2rsawseen/gideros/lua/src/ldo.c:319 #10 0x000000010766d1de in luaD_call at /Users/ar2rsawseen/gideros/lua/src/ldo.c:376 #11 0x000000010766d163 in lua_call at /Users/ar2rsawseen/gideros/lua/src/lapi.c:782 #12 0x000000010779b84a in PushEventVisitor::visit(TouchEvent*) at /Users/ar2rsawseen/gideros/luabinding/eventdispatcherbinder.cpp:517 #13 0x000000010779a74a in CppLuaBridge::luaEvent(LuaEvent*) at /Users/ar2rsawseen/gideros/luabinding/eventdispatcherbinder.cpp:838 #14 0x00000001077d0666 in EventDispatcher::dispatchEvent(Event*) at /Users/ar2rsawseen/gideros/ios/iosplayer/../../libgideros/eventdispatcher.h:203 #15 0x0000000107757c89 in Stage::dispatchToSpritesWithListeners(Event*) at /Users/ar2rsawseen/gideros/2dsg/stage.cpp:193 #16 0x00000001077582b5 in Stage::touchesEnd(ginput_TouchEvent*, float, float, float, float) at /Users/ar2rsawseen/gideros/2dsg/stage.cpp:110 #17 0x0000000107690b80 in gevent_CallbackList::dispatchEvent(int, void*) at /Users/ar2rsawseen/gideros/libgid/src/gevent.cpp:297 #18 0x0000000107690955 in gevent::EventManager::tick() at /Users/ar2rsawseen/gideros/libgid/src/gevent.cpp:123 #19 0x00000001077a1c97 in enterFrame(lua_State*) at /Users/ar2rsawseen/gideros/luabinding/luaapplication.cpp:1005 #20 0x0000000107670b2f in luaD_precall at /Users/ar2rsawseen/gideros/lua/src/ldo.c:319 #21 0x000000010766d1de in luaD_call at /Users/ar2rsawseen/gideros/lua/src/ldo.c:376 #22 0x0000000107670631 in luaD_rawrunprotected at /Users/ar2rsawseen/gideros/lua/src/ldo.c:116 #23 0x000000010766d2e9 in luaD_pcall at /Users/ar2rsawseen/gideros/lua/src/ldo.c:468 #24 0x000000010766d282 in lua_pcall at /Users/ar2rsawseen/gideros/lua/src/lapi.c:821 #25 0x00000001077de83b in ::lua_pcall_traceback(lua_State *, int, int, int) at /Users/ar2rsawseen/gideros/libgideros/luautil.cpp:172 #26 0x00000001077a12e6 in LuaApplication::enterFrame(GStatus*) at /Users/ar2rsawseen/gideros/luabinding/luaapplication.cpp:1071 #27 0x00000001077b8c69 in ApplicationManager::drawFrame() at /Users/ar2rsawseen/gideros/ios/iosplayer/iosplayer/giderosapi.mm:986 #28 0x0000000107634d37 in -[ViewController drawFrame] at /GiderosiOSPlayer/ViewController.m:152 #29 0x0000000108755bf4 in CA::Display::DisplayLinkItem::dispatch() () #30 0x0000000108755abe in CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) () #31 0x000000010af1c074 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ () #32 0x000000010af1bc21 in __CFRunLoopDoTimer () #33 0x000000010aeddb11 in __CFRunLoopRun () #34 0x000000010aedd0f8 in CFRunLoopRunSpecific () #35 0x000000010beb3ad2 in GSEventRunModal () #36 0x00000001088baf09 in UIApplicationMain () #37 0x0000000107632e94 in main at /GiderosiOSPlayer/main.m:12 #38 0x000000010b4b792d in start ()

totebo

Update: Tested with "Code example" from this URL:
http://docs.giderosmobile.com/interface/iab

This produced the exact same error as above. Could this be a Gideros issue perchance?

ar2rsawseen

@totebo do you use that event on some coroutine or fake thread?

ar2rsawseen

Also you have a print statement there? If you remove it, does it work correctly?

totebo

@ar2rsawseen, thanks for response! It's what I consider a vanilla implementation, no funny business like threads or any modifications.

I tried it without any prints, just the purchase() call and it behaves the same. Before the crash everything works, including loading the items from iTunes.

It seems the purchase part is stable and works, even if the Gideros app flakes out; the app sometimes crashes before any dialogue is displayed, and then the dialogue displays on top of the home screen as if nothing had happened.

SinisterSoft

I start as much event stuff as possible outside of the fake thread - in the main lua code.

hgy29

@totebo,

What kind of crash was it (BAD_ACCESS ?) and at which CPU address did it occur ?
Reading the backtrace, it crashed in network code while trying to print something to gideros studio from your event callback in lua.

totebo

You're right, and it's very strange: If I print in the event listener it crashes. If I don't print in the event listener it doesn't crash the first purchase, but in the second. Same error, even if I remove all prints. Of course, I've checked the prints for undeclared vars.

Yes, the error appears to be EXC_BAD_ACCESS. I don't understand the XCode output, but have attached a bunch of screenshots. What I have messed up now @hgy29?!

totebo

Update: I created a completely new Gideros project with just a main.lua containing the example from "Code example" from http://docs.giderosmobile.com/interface/iab. Items load fine, but same crash on purchase.

totebo

I've attached the test project and the XCode output after the crash.

Two videos showing the crash in action on an iPod Touch:




It seems to me it has to be the plugin. Going back to triple check I've installed it correctly.

totebo

Update: As per @sinistersoft's instructions I exported a fresh XCode project from Gideros, and removed the assets folder. It made a player, yay! I added the IAB plugin and ran the project I attached above.

Still the same error.

I'm out of ideas. A clean player with a clean project with a clean plugin, using just the example code. Since my code is out of the loop, it has to be something to do with Gideros surely?!

ar2rsawseen

So on all cases even without print it still crashes on print?

I checked release notes for 2016.06 and it had nothing new regarding print, but had fake threads in it.

Unfortunately if no one has any ideas, next step is finding last Gideros version on which it worked.

hgy29

I traced the bug down to an issue with suspend/resume on iOS player, nothing wrong on IAB. Fix pushed to gideros repository.