crashed when call CefShutdown in MFC based app

[jasonswordt2]

I got a example using cef with mfc like this https://www.codeproject.com/Articles/1105945/Embedding-a-Chromium-browser-in-an-MFC-application

,but same error always happen when i call CefShutdown, like this http://magpcss.org/ceforum/viewtopic.php?f=6&t=14154;

and call CefDoMessageLoopWork before CefShutdown doen't help.

I use this project in both CEF cef_binary_3.2785.1474.g4a88e67_windows32 and cef_binary_3.2623.1401.gb90a3be_windows32, both crashed when i call CefShutdown.

[0104/152539:FATAL:browser_main.cc(189)] Check failed: 0 == CefBrowserContext::DebugObjCt (0 vs. 1)
[0104/152547:FATAL:browser_main.cc(203)] Check failed: 0 == CefURLRequestContext::DebugObjCt (0 vs. 1)
[0104/153332:FATAL:keyed_service_factory.cc(21)] Check failed: mapping_.empty().
0x7681C54F (KernelBase.dll) (cefmfcdemo.exe )first exception: 0x0000071A: The remote procedure call was canceled, or if a call time-out was specified, the call timed out。
[0104/153332:FATAL:browser_context_impl.cc(51)] Check failed: all_.empty().
[0104/153333:FATAL:keyed_service_factory.cc(21)] Check failed: mapping_.empty().
[0104/153333:FATAL:keyed_service_factory.cc(21)] Check failed: mapping_.empty().
[0104/153334:FATAL:keyed_service_factory.cc(21)] Check failed: mapping_.empty().
[0104/153334:FATAL:keyed_service_factory.cc(21)] Check failed: mapping_.empty().


I do this in MFC SDI and MFC Dialog Based app, I call CefDoMessageLoopWork in CWinApp::PumpMessage() -> destory browser window -> close main window -> CefShutdown, it crashed.

but in WIN32 app,when I use CefRunMessageLoop -> CefQuitMessageLoop() -> CefShutdown(), it seems works fine.

can anyone solve this?

[amaitland]

Make sure your using a Release build of CEF

[ScottV]

Here's how I shut down CEF in MFC using with PumpMessage.

In ExitInstance:

// stop message loop
m_bCEFInitialized = FALSE;
m_cefApp = NULL;
CefDoMessageLoopWork();
try {
CefShutdown();
}
catch (...){
ASSERT(FALSE);
}


In PumpMessage:

// do CEF message loop
if (m_bCEFInitialized) {
CefDoMessageLoopWork();
}

Example:
https://bitbucket.org/TSS_DEV/cef-mfc

--Scott

[jasonswordt2]

Code: Select all

 
CefSettings settings;
   settings.no_sandbox = true;
   settings.multi_threaded_message_loop = false;
   settings.single_process = true;

   void* sandbox_info = NULL;
   
   CefInitialize(mainargs, settings, NULL, sandbox_info);


I finally got this, I use settings.single_process = true; for debug.

I realized this is the only difference between my MFC app and my WIN32 app,and that is the question.

maybe new version of the CEF no longer support this feature properly? or is there any additional things that I should do to avoid this?

[amaitland]

Single process mode is unsupported, don't use it.