upload android base code part4

android/hardware/ril/librilutils/librilutils.c

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <telephony/librilutils.h>
+#include <time.h>
+
+uint64_t ril_nano_time() {
+    struct timespec now;
+    clock_gettime(CLOCK_MONOTONIC, &now);
+    return now.tv_sec * 1000000000LL + now.tv_nsec;
+}