Your not creating a static C++ object anywhere are you? One that creates the
dictionary before main gets called by any chance?
Kevin
Sent from my iPhone
> On 22 Oct 2014, at 22:45, Beinan Li <li.bei...@gmail.com> wrote:
>
> Note, the initial crashing function is merely translating a C++ enum to the
> AVFoundation builtin constants.
>
> Thanks,
> Beinan
>
>
>> On Wed, Oct 22, 2014 at 5:45 PM, Beinan Li <li.bei...@gmail.com> wrote:
>>
>> It is quite unpredictable.
>> At first it crashes at a dictionary creation line in a .mm implementation
>> like this:
>>
>> - (NSString*) getAVAudioSessionMode:(myAudioSessionMode)modeKey {
>> NSDictionary* modeDict = @{ // Here it crashes
>> @(myAudioSessionModeDefault): AVAudioSessionModeDefault,
>> @(myAudioSessionModeVoiceChat): AVAudioSessionModeVoiceChat,
>> @(myAudioSessionModeGameChat): AVAudioSessionModeGameChat,
>> @(myAudioSessionModeVideoRecording): AVAudioSessionModeVideoRecording,
>> @(myAudioSessionModeMeasurement): AVAudioSessionModeMeasurement,
>> @(myAudioSessionModeMoviePlayback): AVAudioSessionModeMoviePlayback,
>> @(myAudioSessionModeVideoChat): AVAudioSessionModeVideoChat
>> };
>> NSString* mode = [modeDict objectForKey:@
>> (mySettings.audioSession.eMode)];
>> return mode;
>> }
>>
>> The backtrace gives me:
>>
>> * thread #1: tid = 0x2403, 0x0013148c MyDemo`-[MyImp
>> getAVAudioSessionMode:](self=0x1e839a80, _cmd=0x002d3077,
>> modeKey=myAudioSessionModeDefault) + 676 at MyImp.mm:78, queue =
>> 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
>> * frame #0:
>> 0x0013148c MyDemo -[MyImp getAVAudioSessionMode:](self=0x1e839a80,
>> _cmd=0x002d3077, modeKey=myAudioSessionModeDefault) + 676 at MyImp.mm:78
>>
>> Then if I remove this dictionary all together and do it like this:
>>
>> - (NSString*) getAVAudioSessionMode:(myAudioSessionMode)modeKey {
>> return AVAudioSessionModeDefault;
>> }
>>
>> Then I get a crash right in the main.mm:
>>
>> int retVal = UIApplicationMain(argc, argv, nil, @"MyDemoAppDelegate");
>>
>> backtrace:
>>
>> * thread #1: tid = 0x2403, 0x3c4df350
>> libsystem_kernel.dylib`__pthread_kill + 8, queue = 'com.apple.main-thread',
>> stop reason = signal SIGABRT
>> frame #0: 0x3c4df350 libsystem_kernel.dylib`__pthread_kill + 8
>> frame #1: 0x3c456122 libsystem_c.dylib`pthread_kill + 58
>> frame #2: 0x3c492972 libsystem_c.dylib`abort + 94
>> frame #3: 0x3ba30d4e libc++abi.dylib`abort_message + 74
>> frame #4: 0x3ba2dff8 libc++abi.dylib`default_terminate() + 24
>> frame #5: 0x3bfe1a
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