GifTextureView crash (IllegalStateException: Poll failed)

[DmitriyZaitsev]

Repro steps:

1. Open sample app;
2. swipe --> from SourcesFragment to TextViewFragment;
3. swipe back <-- to SourcesFragment;
4. Swipe left <-- again.

Stack trace:

03-28 10:24:44.806    1246-1441/pl.droidsonroids.gif.sample E/AndroidRuntime﹕ FATAL EXCEPTION: Thread-91
    java.lang.IllegalStateException: Poll failed
            at pl.droidsonroids.gif.GifInfoHandle.bindSurface(Native Method)
            at pl.droidsonroids.gif.GifInfoHandle.bindSurface(GifInfoHandle.java:118)
            at pl.droidsonroids.gif.GifTextureView$RenderThread.run(GifTextureView.java:191)
03-28 10:24:44.834      385-397/system_process E/Sensors﹕ Select fail, disconnect all clients (errno=4)
03-28 10:24:45.418      385-444/system_process E/ActivityManager﹕ ANR in pl.droidsonroids.gif.sample (pl.droidsonroids.gif.sample/.MainActivity)
    Reason: keyDispatchingTimedOut
    Load: 0.02 / 0.04 / 0.02
    CPU usage from 39803ms to 3863ms ago with 99% awake:
    4% 1246/pl.droidsonroids.gif.sample: 3.3% user + 0.7% kernel / faults: 1136 minor
    1.2% 113/local_opengl: 0% user + 1.2% kernel
    0.8% 404/surfaceflinger: 0.3% user + 0.4% kernel
    0.5% 385/system_server: 0.3% user + 0.2% kernel / faults: 84 minor
    0.4% 60/adbd: 0% user + 0.4% kernel / faults: 1849 minor
    0% 111/vinput: 0% user + 0% kernel
    0% 383/logcat: 0% user + 0% kernel
    0% 588/com.android.phone: 0% user + 0% kernel / faults: 74 minor
    6.8% TOTAL: 3.5% user + 2.7% kernel + 0.5% softirq
    CPU usage from 117ms to 618ms later:
    6% 385/system_server: 4% user + 2% kernel / faults: 930 minor
    2% 400/WindowManager: 0% user + 2% kernel
    2% 401/ActivityManager: 2% user + 0% kernel
    2% 685/Binder_7: 2% user + 0% kernel
    4% 404/surfaceflinger: 0% user + 4% kernel
    2% 406/SurfaceFlinger: 0% user + 2% kernel
    2% 416/VSyncThread: 0% user + 2% kernel
    2% 420/Binder_1: 2% user + 0% kernel
    8.5% TOTAL: 4.2% user + 2.1% kernel + 2.1% softirq
03-28 10:24:47.138      385-444/system_process E/InputDispatcher﹕ channel '53a8b2dc pl.droidsonroids.gif.sample/pl.droidsonroids.gif.sample.MainActivity (server)' ~ Channel is unrecoverably broken and will be disposed!

[koral--]

I could not reproduce it using current version, however now errno is added to such kind error messages so it will be easier to debug if it occurs in the future.
If app was force closed due to ANR then poll() might fail with errno=EINTR but again I was unable to reproduce ANR.
I guess that it might be caused by the fact that in SourcesFragment many GIFs are loaded in UI thread and on some (especially slow/busy) devices it may take time long enough for ANR.
I'll move loading in sample to background thread.

[PaulProject]

Hi Karol,

I can reproduce this error on the emulator Genimotion v 2.5.0 (Google Nexus 5 - 5.1.0 - API 22 - 1080x1920) when try play gif downloaded from url

[koral--]

Tracked as https://github.com/koral--/android-gif-drawable/issues/240#issuecomment-169831018 in library project.