Int32 FileBackupHelperBase::performBackup_native( /* [in] */ IFileDescriptor* oldState, /* [in] */ android::BackupDataWriter* dataStream, /* [in] */ IFileDescriptor* newState, /* [in] */ ArrayOf<String>* files, /* [in] */ ArrayOf<String>* keys) { Int32 err = 0; // all parameters have already been checked against NULL Int32 oldStateFD = -1; if (oldState != NULL) { oldState->GetDescriptor(&oldStateFD); } assert(newState != NULL); Int32 newStateFD = 0; newState->GetDescriptor(&newStateFD); assert(files != NULL); const Int32 fileCount = files->GetLength(); char const** filesUTF = (char const**)malloc(sizeof(char*)*fileCount); for (Int32 i=0; i<fileCount; i++) { filesUTF[i] = (*files)[i]; } assert(keys != NULL); const Int32 keyCount = keys->GetLength(); char const** keysUTF = (char const**)malloc(sizeof(char*)*keyCount); for (Int32 i=0; i<keyCount; i++) { keysUTF[i] = (*keys)[i];; } err = back_up_files(oldStateFD, dataStream, newStateFD, filesUTF, keysUTF, fileCount); free(filesUTF); free(keysUTF); return err; }
static int performBackup_native(JNIEnv* env, jobject clazz, jobject oldState, int data, jobject newState, jobjectArray files, jobjectArray keys) { int err; // all parameters have already been checked against null int oldStateFD = oldState != NULL ? env->GetIntField(oldState, s_descriptorField) : -1; int newStateFD = env->GetIntField(newState, s_descriptorField); BackupDataWriter* dataStream = (BackupDataWriter*)data; const int fileCount = env->GetArrayLength(files); char const** filesUTF = (char const**)malloc(sizeof(char*)*fileCount); for (int i=0; i<fileCount; i++) { filesUTF[i] = env->GetStringUTFChars((jstring)env->GetObjectArrayElement(files, i), NULL); } const int keyCount = env->GetArrayLength(keys); char const** keysUTF = (char const**)malloc(sizeof(char*)*keyCount); for (int i=0; i<keyCount; i++) { keysUTF[i] = env->GetStringUTFChars((jstring)env->GetObjectArrayElement(keys, i), NULL); } err = back_up_files(oldStateFD, dataStream, newStateFD, filesUTF, keysUTF, fileCount); for (int i=0; i<fileCount; i++) { env->ReleaseStringUTFChars((jstring)env->GetObjectArrayElement(files, i), filesUTF[i]); } free(filesUTF); for (int i=0; i<keyCount; i++) { env->ReleaseStringUTFChars((jstring)env->GetObjectArrayElement(keys, i), keysUTF[i]); } free(keysUTF); return err; }