Using coreFoundation in multiple threads

[Сергей Матвеев]

While trying to port NSDictionary to Android I stopped on following problem:

I have multiple threads in my java app, first thread calls native function which construct  singleton object:

[[DocumentManager instance] setPath:path]; // initialize static variable with DocumentManager

Second thread calls native function which do folowing:

[[DocumentManager instance] loadDoc:key]; //  I have  SIGSERV when loadDoc called on static variable behind the singleton

Everything works fine If I call this 2 native methods on the same java thread, but when I try to access to objc object from diffrent java threads I have SIGSERV.

Also I try to return DocumentManager pointer from first method to java and then call second native method with this pointer like this:

DocumentManager* dm = (DocumentManager*)pointerFromJava;

[dm loadDoc:key]; // SIGSERV

Also I try to store pointer in global static variable in JNI.

I use noarc build and 10.3.1 version, so the question is how to use created object across jni calls and multiple threads (in single thread all works fine)?