Hi! Mahendra G , Tristan: Thanks for your information. I'll try the example. :)
ya. It's a really big chunk of memory on the stack. Maybe it works in an activity is just a luck.... On 1月11日, 上午7時53分, monocasa <[email protected]> wrote: > 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!"); > > > }- 隱藏被引用文字 - > > - 顯示被引用文字 -
-- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
