Nativehelper: Export header-only version of helpers
Export a version of the nativehelper helpers that doesn't have
a dependency on the libnativehelper library. Instead, provide an
inline function for null throw.
Test: m
Change-Id: Idfab8809873d54db824c8bc089f003265fe5a9b9
diff --git a/header_only_include/nativehelper/nativehelper_utils.h b/header_only_include/nativehelper/nativehelper_utils.h
new file mode 100644
index 0000000..da0c647
--- /dev/null
+++ b/header_only_include/nativehelper/nativehelper_utils.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2007 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 NATIVEHELPER_MACROS_H_
+#define NATIVEHELPER_MACROS_H_
+
+#if defined(__cplusplus)
+
+#if !defined(DISALLOW_COPY_AND_ASSIGN)
+// DISALLOW_COPY_AND_ASSIGN disallows the copy and operator= functions. It goes in the private:
+// declarations in a class.
+#if __cplusplus >= 201103L
+#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
+ TypeName(const TypeName&) = delete; \
+ void operator=(const TypeName&) = delete
+#else
+#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
+ TypeName(const TypeName&); \
+ void operator=(const TypeName&)
+#endif // __has_feature(cxx_deleted_functions)
+#endif // !defined(DISALLOW_COPY_AND_ASSIGN)
+
+#ifndef NATIVEHELPER_JNIHELP_H_
+// This seems a header-only include. Provide NPE throwing.
+static inline int jniThrowNullPointerException(JNIEnv* env, const char* msg) {
+ if (env->ExceptionCheck()) {
+ // Drop any pending exception.
+ env->ExceptionClear();
+ }
+
+ jclass e_class = env->FindClass("java/lang/NullPointerException");
+ if (e_class == nullptr) {
+ return -1;
+ }
+
+ if (env->ThrowNew(e_class, msg) != JNI_OK) {
+ env->DeleteLocalRef(e_class);
+ return -1;
+ }
+
+ env->DeleteLocalRef(e_class);
+ return 0;
+}
+#endif // NATIVEHELPER_JNIHELP_H_
+
+#endif // defined(__cplusplus)
+
+#endif // NATIVEHELPER_MACROS_H_