libcutils: move cutils/files.h to cutils/android_get_control_file.h

files.[h|cpp] is bound to be abused with junk, replace with
android_get_control_file.[h|cpp]. Plus some sundry cleanup.

Test: gTest libcutils-tests, logd-unit-tests, liblog-unit-tests,
      logcat-unit-tests and init_tests
Bug: 32450474
Change-Id: Ibd4a7aa4624ea19a43d1f98a3c71ac37805d36b5

1 files changed, 33 insertions, 0 deletions

diff --git a/libcutils/android_get_control_env.h b/libcutils/android_get_control_env.h
new file mode 100644
index 000000000..638c8318a
--- /dev/null
+++ b/libcutils/android_get_control_env.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#ifndef __CUTILS_ANDROID_GET_CONTROL_ENV_H
+#define __CUTILS_ANDROID_GET_CONTROL_ENV_H
+
+/* To declare library function hidden and internal */
+#define LIBCUTILS_HIDDEN __attribute__((visibility("hidden")))
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+LIBCUTILS_HIDDEN int __android_get_control_from_env(const char* prefix,
+                                                    const char* name);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __CUTILS_ANDROID_GET_CONTROL_ENV_H */