ac8eb111a9
Summary: Added method which checks if value(methodId, fieldId, class ...) returned by JNI functions (getMethod, getField, getClass ...) is valid or not and throw exception if they are not valid ##Changelog: [Internal][Yoga] Add defensive check for result returned after JNI calls Reviewed By: astreet Differential Revision: D18745718 fbshipit-source-id: 2af26eda15fbe7834e1c9b274deeed4f106274ab
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include <jni.h>
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#include <cstddef>
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namespace facebook {
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namespace yoga {
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namespace vanillajni {
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/**
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* This method has to be called before using the vanillajni library. This method
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* is typically called when doing initialization in the "on load" JNI hook of a
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* particular library.
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*
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* This method is thread safe, and after the first time it's called it has no
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* initialization effect.
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*
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* @param env use this output parameter to get a JNIEnv to use for things such
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* as registering native methods and such.
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* @param vm the VM instance passed by JNI. This is usually the VM instance
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* that is passed to the "on load" JNI hook.
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* @return an integer value to return from the "on load" hook.
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*/
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jint ensureInitialized(JNIEnv** env, JavaVM* vm);
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/**
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* Returns a JNIEnv* suitable for the current thread. If the current thread is
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* not attached to the Java VM, this method aborts execution.
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*/
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JNIEnv* getCurrentEnv();
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/**
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* Logs an error message and aborts the current process.
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*/
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void logErrorMessageAndDie(const char* message);
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/**
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* Checks whether there is a pending JNI exception. If so, it logs an error
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* message and aborts the current process. Otherwise it does nothing.
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*/
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void assertNoPendingJniException(JNIEnv* env);
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void assertNoPendingJniExceptionIf(JNIEnv* env, bool condition);
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} // namespace vanillajni
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} // namespace yoga
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} // namespace facebook
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