Hey, I'm not sure if this is your problem, but you're allocating a really big chunk of memory on the stack (it makes my embedded code senses tingle big time). What are the stack size limits for android?
Tristan Miller On Jan 10, 8:42 am, nemo <[email protected]> wrote: > Hi! All: > > I've stuggle of this problem few days, search many hours but not sure > what's I should try. > Thanks in advance. > I have a native c function which take jintarray as a parameter, and I > wanna pass a int array to it. > I use GetIntArrayRegion to copy out the content of jintArray. > > JNIEXPORT jstring Java_com_google_client_DecodeThread_test( JNIEnv* > env, > jobject this, jintArray > verts1 ) > { > > jint buf[307200]; > (*env)->GetIntArrayRegion(env, verts1, 0, 307200, buf); > > } > > It seems work when I call this native function in an activity. (it > didn't crash ,at least) > But it always crash when I call this native function in an thread > which will be called in an activity. > > I can't figure out why is that... > I saw many example, they just pass jintarray... > > I also found that If I copy small part of the jintarray, it won't > crash. > > Is there any memory limit of thread ? > or something related to GC and invalid array pointer? > > The following is part of my code. > Thanks a lot for your help. > > in java: > public native int testmem(int[] img); > > private void decode_c() > { > ... > System.loadLibrary("mydecoder"); > int[] img_int = new int[307200]; > int res= test(img_int ); ----------> it will crash here.I can't even > find out the error, the application closed. > ... > > } > > in native c: > > JNIEXPORT jstring Java_com_google_client_DecodeThread_test( JNIEnv* > env, > jobject this, jintArray > verts1 ) > { > > jint buf[307200]; > (*env)->GetIntArrayRegion(env, verts1, 0, 307200, buf); > return (*env)->NewStringUTF(env, "show when no crash!"); > > > > }
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