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From Iñaki Baz Castillo (JIRA) <j...@apache.org>
Subject [jira] [Updated] (CB-9102) Crash when using a iOS Cordova plugin within a WebSocket event
Date Mon, 01 Jun 2015 18:05:17 GMT

     [ https://issues.apache.org/jira/browse/CB-9102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Iñaki Baz Castillo updated CB-9102:
-----------------------------------
    Description: 
I've coded a cordova plugin for iOS. It is exported as a JavaScript object with multiple functions
in `window.cordova.plugins.iosrtc`.

If I use any of those exported functions within the callback of a WebSocket event (onopen,
onmessage, etc), the plugin/app usually crashes:

{code}
Process 2326 stopped
* thread #1: tid = 0x94ce5, 0x2e267474 WebCore`WebCore::NavigationScheduler::schedule(std::__1::unique_ptr<WebCore::ScheduledNavigation,
std::__1::default_delete<WebCore::ScheduledNavigation> >) + 276, queue = 'com.apple.main-thread',
stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
    frame #0: 0x2e267474 WebCore`WebCore::NavigationScheduler::schedule(std::__1::unique_ptr<WebCore::ScheduledNavigation,
std::__1::default_delete<WebCore::ScheduledNavigation> >) + 276
WebCore`WebCore::NavigationScheduler::schedule:
->  0x2e267474 <+276>: ldr    r2, [r0]
    0x2e267476 <+278>: ldr    r3, [r2, #0x10]
    0x2e267478 <+280>: mov    r2, r10
    0x2e26747a <+282>: blx    r3
(lldb)
error: No auto repeat.
(lldb) list
   30  	{
   31  	    @autoreleasepool {
   32  	        int retVal = UIApplicationMain(argc, argv, nil, @"AppDelegate");
   33  	        return retVal;
   34  	    }
   35  	}
(lldb) bt
* thread #1: tid = 0x94ce5, 0x2e267474 WebCore`WebCore::NavigationScheduler::schedule(std::__1::unique_ptr<WebCore::ScheduledNavigation,
std::__1::default_delete<WebCore::ScheduledNavigation> >) + 276, queue = 'com.apple.main-thread',
stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
  * frame #0: 0x2e267474 WebCore`WebCore::NavigationScheduler::schedule(std::__1::unique_ptr<WebCore::ScheduledNavigation,
std::__1::default_delete<WebCore::ScheduledNavigation> >) + 276
    frame #1: 0x2e26769e WebCore`WebCore::NavigationScheduler::scheduleLocationChange(WebCore::SecurityOrigin*,
WebCore::URL const&, WTF::String const&, WebCore::LockHistory, WebCore::LockBackForwardList)
+ 498
    frame #2: 0x2de00c20 WebCore`WebCore::DOMWindow::setLocation(WTF::String const&, WebCore::DOMWindow&,
WebCore::DOMWindow&, WebCore::SetLocationLocking) + 172
    frame #3: 0x2e22b0e2 WebCore`WebCore::Location::setHref(WTF::String const&, WebCore::DOMWindow&,
WebCore::DOMWindow&) + 86
    frame #4: 0x2e03c5d6 WebCore`WebCore::JSDOMWindow::setLocation(JSC::ExecState*, JSC::JSValue)
+ 142
    frame #5: 0x2daad47e WebCore`WebCore::JSDOMWindow::put(JSC::JSCell, JSC::ExecState, JSC::PropertyName,
JSC::JSValue, JSC::PutPropertySlot&) + 446
    frame #6: 0x231a3436 JavaScriptCore`JSC::JSProxy::put(JSC::JSCell, JSC::ExecState, JSC::PropertyName,
JSC::JSValue, JSC::PutPropertySlot&) + 54
    frame #7: 0x23199fc0 JavaScriptCore`llint_slow_path_put_by_id + 404
    frame #8: 0x233ca3ce JavaScriptCore`llint_entry + 9694
{code}

Sometimes it produces a different error:

{code}
2015-06-01 15:29:17.810 cordovaIosrtcDemo[2298:602476] DiskCookieStorage changing policy from
2 to 0, cookie file: file:///private/var/mobile/Containers/Data/Application/3588C109-5F97-4E5F-83EA-36165871ACC3/Library/Cookies/Cookies.binarycookies
2015-06-01 15:29:18.083 cordovaIosrtcDemo[2298:602476] Apache Cordova native platform version
3.8.0 is starting.
2015-06-01 15:29:18.083 cordovaIosrtcDemo[2298:602476] Multi-tasking -> Device: YES, App:
YES
2015-06-01 15:29:18.088 cordovaIosrtcDemo[2298:602476] Unlimited access to network resources
2015-06-01 15:29:18.277 cordovaIosrtcDemo[2298:602476] iosrtcPlugin#init()
2015-06-01 15:29:18.325 cordovaIosrtcDemo[2298:602476] PluginGetUserMedia#init()
2015-06-01 15:29:18.326 cordovaIosrtcDemo[2298:602476] [CDVTimer][iosrtcplugin] 55.085003ms
2015-06-01 15:29:18.326 cordovaIosrtcDemo[2298:602476] [CDVTimer][TotalPluginStartup] 55.342019ms
2015-06-01 15:29:18.967 cordovaIosrtcDemo[2298:602476] Resetting plugins due to page load.
2015-06-01 15:29:19.432 cordovaIosrtcDemo[2298:602476] Finished load of: file:///private/var/mobile/Containers/Bundle/Application/90A5F156-4893-490C-B608-A7D3715F379D/cordovaIosrtcDemo.app/www/index.html
Process 2298 stopped
* thread #8: tid = 0x931b5, 0x21e410e8 CoreFoundation`CFRelease + 1268, name = 'WebThread',
stop reason = EXC_BREAKPOINT (code=EXC_ARM_BREAKPOINT, subcode=0xdefe)
    frame #0: 0x21e410e8 CoreFoundation`CFRelease + 1268
CoreFoundation`CFRelease:
->  0x21e410e8 <+1268>: trap
    0x21e410ea <+1270>: trap

CoreFoundation`_CFAllocatorDeallocateGC:
    0x21e410ec <+0>:    push   {r4, r7, lr}
    0x21e410ee <+2>:    mov    r4, r1
{code}


IMPORTANT: If I run a setTimeout within the WebSocket event and run the plugin function inside
it, the app DOES NOT crash.

It may be related to https://issues.apache.org/jira/browse/CB-2301

NOTE: This issue is NOT about sleep/resume at all as it happens immediately when I open the
app and a WebSocket connects.


  was:
I've coded a cordova plugin for iOS. It is exported as a JavaScript object with multiple functions
in `window.cordova.plugins.iosrtc`.

If I use any of those exported functions within the callback of a WebSocket event (onopen,
onmessage, etc), the plugin/app usually crashes:

-------------------------------
Process 2326 stopped
* thread #1: tid = 0x94ce5, 0x2e267474 WebCore`WebCore::NavigationScheduler::schedule(std::__1::unique_ptr<WebCore::ScheduledNavigation,
std::__1::default_delete<WebCore::ScheduledNavigation> >) + 276, queue = 'com.apple.main-thread',
stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
    frame #0: 0x2e267474 WebCore`WebCore::NavigationScheduler::schedule(std::__1::unique_ptr<WebCore::ScheduledNavigation,
std::__1::default_delete<WebCore::ScheduledNavigation> >) + 276
WebCore`WebCore::NavigationScheduler::schedule:
->  0x2e267474 <+276>: ldr    r2, [r0]
    0x2e267476 <+278>: ldr    r3, [r2, #0x10]
    0x2e267478 <+280>: mov    r2, r10
    0x2e26747a <+282>: blx    r3
(lldb)
error: No auto repeat.
(lldb) list
   30  	{
   31  	    @autoreleasepool {
   32  	        int retVal = UIApplicationMain(argc, argv, nil, @"AppDelegate");
   33  	        return retVal;
   34  	    }
   35  	}
(lldb) bt
* thread #1: tid = 0x94ce5, 0x2e267474 WebCore`WebCore::NavigationScheduler::schedule(std::__1::unique_ptr<WebCore::ScheduledNavigation,
std::__1::default_delete<WebCore::ScheduledNavigation> >) + 276, queue = 'com.apple.main-thread',
stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
  * frame #0: 0x2e267474 WebCore`WebCore::NavigationScheduler::schedule(std::__1::unique_ptr<WebCore::ScheduledNavigation,
std::__1::default_delete<WebCore::ScheduledNavigation> >) + 276
    frame #1: 0x2e26769e WebCore`WebCore::NavigationScheduler::scheduleLocationChange(WebCore::SecurityOrigin*,
WebCore::URL const&, WTF::String const&, WebCore::LockHistory, WebCore::LockBackForwardList)
+ 498
    frame #2: 0x2de00c20 WebCore`WebCore::DOMWindow::setLocation(WTF::String const&, WebCore::DOMWindow&,
WebCore::DOMWindow&, WebCore::SetLocationLocking) + 172
    frame #3: 0x2e22b0e2 WebCore`WebCore::Location::setHref(WTF::String const&, WebCore::DOMWindow&,
WebCore::DOMWindow&) + 86
    frame #4: 0x2e03c5d6 WebCore`WebCore::JSDOMWindow::setLocation(JSC::ExecState*, JSC::JSValue)
+ 142
    frame #5: 0x2daad47e WebCore`WebCore::JSDOMWindow::put(JSC::JSCell, JSC::ExecState, JSC::PropertyName,
JSC::JSValue, JSC::PutPropertySlot&) + 446
    frame #6: 0x231a3436 JavaScriptCore`JSC::JSProxy::put(JSC::JSCell, JSC::ExecState, JSC::PropertyName,
JSC::JSValue, JSC::PutPropertySlot&) + 54
    frame #7: 0x23199fc0 JavaScriptCore`llint_slow_path_put_by_id + 404
    frame #8: 0x233ca3ce JavaScriptCore`llint_entry + 9694
-------------------------------

Sometimes it produces a different error:

--------------------------------
2015-06-01 15:29:17.810 cordovaIosrtcDemo[2298:602476] DiskCookieStorage changing policy from
2 to 0, cookie file: file:///private/var/mobile/Containers/Data/Application/3588C109-5F97-4E5F-83EA-36165871ACC3/Library/Cookies/Cookies.binarycookies
2015-06-01 15:29:18.083 cordovaIosrtcDemo[2298:602476] Apache Cordova native platform version
3.8.0 is starting.
2015-06-01 15:29:18.083 cordovaIosrtcDemo[2298:602476] Multi-tasking -> Device: YES, App:
YES
2015-06-01 15:29:18.088 cordovaIosrtcDemo[2298:602476] Unlimited access to network resources
2015-06-01 15:29:18.277 cordovaIosrtcDemo[2298:602476] iosrtcPlugin#init()
2015-06-01 15:29:18.325 cordovaIosrtcDemo[2298:602476] PluginGetUserMedia#init()
2015-06-01 15:29:18.326 cordovaIosrtcDemo[2298:602476] [CDVTimer][iosrtcplugin] 55.085003ms
2015-06-01 15:29:18.326 cordovaIosrtcDemo[2298:602476] [CDVTimer][TotalPluginStartup] 55.342019ms
2015-06-01 15:29:18.967 cordovaIosrtcDemo[2298:602476] Resetting plugins due to page load.
2015-06-01 15:29:19.432 cordovaIosrtcDemo[2298:602476] Finished load of: file:///private/var/mobile/Containers/Bundle/Application/90A5F156-4893-490C-B608-A7D3715F379D/cordovaIosrtcDemo.app/www/index.html
Process 2298 stopped
* thread #8: tid = 0x931b5, 0x21e410e8 CoreFoundation`CFRelease + 1268, name = 'WebThread',
stop reason = EXC_BREAKPOINT (code=EXC_ARM_BREAKPOINT, subcode=0xdefe)
    frame #0: 0x21e410e8 CoreFoundation`CFRelease + 1268
CoreFoundation`CFRelease:
->  0x21e410e8 <+1268>: trap
    0x21e410ea <+1270>: trap

CoreFoundation`_CFAllocatorDeallocateGC:
    0x21e410ec <+0>:    push   {r4, r7, lr}
    0x21e410ee <+2>:    mov    r4, r1
--------------------------------


IMPORTANT: If I run a setTimeout within the WebSocket event and run the plugin function inside
it, the app DOES NOT crash.

It may be related to https://issues.apache.org/jira/browse/CB-2301

NOTE: This issue is NOT about sleep/resume at all as it happens immediately when I open the
app and a WebSocket connects.



> Crash when using a iOS Cordova plugin within a WebSocket event
> --------------------------------------------------------------
>
>                 Key: CB-9102
>                 URL: https://issues.apache.org/jira/browse/CB-9102
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: iOS
>    Affects Versions: 3.8.0
>            Reporter: Iñaki Baz Castillo
>              Labels: ios, plugin, websocket
>
> I've coded a cordova plugin for iOS. It is exported as a JavaScript object with multiple
functions in `window.cordova.plugins.iosrtc`.
> If I use any of those exported functions within the callback of a WebSocket event (onopen,
onmessage, etc), the plugin/app usually crashes:
> {code}
> Process 2326 stopped
> * thread #1: tid = 0x94ce5, 0x2e267474 WebCore`WebCore::NavigationScheduler::schedule(std::__1::unique_ptr<WebCore::ScheduledNavigation,
std::__1::default_delete<WebCore::ScheduledNavigation> >) + 276, queue = 'com.apple.main-thread',
stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
>     frame #0: 0x2e267474 WebCore`WebCore::NavigationScheduler::schedule(std::__1::unique_ptr<WebCore::ScheduledNavigation,
std::__1::default_delete<WebCore::ScheduledNavigation> >) + 276
> WebCore`WebCore::NavigationScheduler::schedule:
> ->  0x2e267474 <+276>: ldr    r2, [r0]
>     0x2e267476 <+278>: ldr    r3, [r2, #0x10]
>     0x2e267478 <+280>: mov    r2, r10
>     0x2e26747a <+282>: blx    r3
> (lldb)
> error: No auto repeat.
> (lldb) list
>    30  	{
>    31  	    @autoreleasepool {
>    32  	        int retVal = UIApplicationMain(argc, argv, nil, @"AppDelegate");
>    33  	        return retVal;
>    34  	    }
>    35  	}
> (lldb) bt
> * thread #1: tid = 0x94ce5, 0x2e267474 WebCore`WebCore::NavigationScheduler::schedule(std::__1::unique_ptr<WebCore::ScheduledNavigation,
std::__1::default_delete<WebCore::ScheduledNavigation> >) + 276, queue = 'com.apple.main-thread',
stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
>   * frame #0: 0x2e267474 WebCore`WebCore::NavigationScheduler::schedule(std::__1::unique_ptr<WebCore::ScheduledNavigation,
std::__1::default_delete<WebCore::ScheduledNavigation> >) + 276
>     frame #1: 0x2e26769e WebCore`WebCore::NavigationScheduler::scheduleLocationChange(WebCore::SecurityOrigin*,
WebCore::URL const&, WTF::String const&, WebCore::LockHistory, WebCore::LockBackForwardList)
+ 498
>     frame #2: 0x2de00c20 WebCore`WebCore::DOMWindow::setLocation(WTF::String const&,
WebCore::DOMWindow&, WebCore::DOMWindow&, WebCore::SetLocationLocking) + 172
>     frame #3: 0x2e22b0e2 WebCore`WebCore::Location::setHref(WTF::String const&, WebCore::DOMWindow&,
WebCore::DOMWindow&) + 86
>     frame #4: 0x2e03c5d6 WebCore`WebCore::JSDOMWindow::setLocation(JSC::ExecState*, JSC::JSValue)
+ 142
>     frame #5: 0x2daad47e WebCore`WebCore::JSDOMWindow::put(JSC::JSCell, JSC::ExecState,
JSC::PropertyName, JSC::JSValue, JSC::PutPropertySlot&) + 446
>     frame #6: 0x231a3436 JavaScriptCore`JSC::JSProxy::put(JSC::JSCell, JSC::ExecState,
JSC::PropertyName, JSC::JSValue, JSC::PutPropertySlot&) + 54
>     frame #7: 0x23199fc0 JavaScriptCore`llint_slow_path_put_by_id + 404
>     frame #8: 0x233ca3ce JavaScriptCore`llint_entry + 9694
> {code}
> Sometimes it produces a different error:
> {code}
> 2015-06-01 15:29:17.810 cordovaIosrtcDemo[2298:602476] DiskCookieStorage changing policy
from 2 to 0, cookie file: file:///private/var/mobile/Containers/Data/Application/3588C109-5F97-4E5F-83EA-36165871ACC3/Library/Cookies/Cookies.binarycookies
> 2015-06-01 15:29:18.083 cordovaIosrtcDemo[2298:602476] Apache Cordova native platform
version 3.8.0 is starting.
> 2015-06-01 15:29:18.083 cordovaIosrtcDemo[2298:602476] Multi-tasking -> Device: YES,
App: YES
> 2015-06-01 15:29:18.088 cordovaIosrtcDemo[2298:602476] Unlimited access to network resources
> 2015-06-01 15:29:18.277 cordovaIosrtcDemo[2298:602476] iosrtcPlugin#init()
> 2015-06-01 15:29:18.325 cordovaIosrtcDemo[2298:602476] PluginGetUserMedia#init()
> 2015-06-01 15:29:18.326 cordovaIosrtcDemo[2298:602476] [CDVTimer][iosrtcplugin] 55.085003ms
> 2015-06-01 15:29:18.326 cordovaIosrtcDemo[2298:602476] [CDVTimer][TotalPluginStartup]
55.342019ms
> 2015-06-01 15:29:18.967 cordovaIosrtcDemo[2298:602476] Resetting plugins due to page
load.
> 2015-06-01 15:29:19.432 cordovaIosrtcDemo[2298:602476] Finished load of: file:///private/var/mobile/Containers/Bundle/Application/90A5F156-4893-490C-B608-A7D3715F379D/cordovaIosrtcDemo.app/www/index.html
> Process 2298 stopped
> * thread #8: tid = 0x931b5, 0x21e410e8 CoreFoundation`CFRelease + 1268, name = 'WebThread',
stop reason = EXC_BREAKPOINT (code=EXC_ARM_BREAKPOINT, subcode=0xdefe)
>     frame #0: 0x21e410e8 CoreFoundation`CFRelease + 1268
> CoreFoundation`CFRelease:
> ->  0x21e410e8 <+1268>: trap
>     0x21e410ea <+1270>: trap
> CoreFoundation`_CFAllocatorDeallocateGC:
>     0x21e410ec <+0>:    push   {r4, r7, lr}
>     0x21e410ee <+2>:    mov    r4, r1
> {code}
> IMPORTANT: If I run a setTimeout within the WebSocket event and run the plugin function
inside it, the app DOES NOT crash.
> It may be related to https://issues.apache.org/jira/browse/CB-2301
> NOTE: This issue is NOT about sleep/resume at all as it happens immediately when I open
the app and a WebSocket connects.



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