102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_TEST_TI_AGENT_JVMTI_HELPER_H_
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#define ART_TEST_TI_AGENT_JVMTI_HELPER_H_
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#include <memory>
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#include <ostream>
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#include "jni.h"
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#include "jvmti.h"
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#include "android-base/logging.h"
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namespace art {
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// Get a standard set of capabilities for use in tests.
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jvmtiCapabilities GetStandardCapabilities();
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// Add all the standard capabilities to the given env.
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void SetStandardCapabilities(jvmtiEnv* env);
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// Add all capabilities to the given env.
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// TODO Remove this in the future.
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void SetAllCapabilities(jvmtiEnv* env);
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// Check whether the given error is NONE. If not, print out the corresponding error message
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// and abort.
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void CheckJvmtiError(jvmtiEnv* env, jvmtiError error);
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// Convert the given error to a RuntimeException with a message derived from the error. Returns
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// true on error, false if error is JVMTI_ERROR_NONE.
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bool JvmtiErrorToException(JNIEnv* env, jvmtiEnv* jvmtienv, jvmtiError error);
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class JvmtiDeleter {
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public:
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JvmtiDeleter() : env_(nullptr) {}
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explicit JvmtiDeleter(jvmtiEnv* env) : env_(env) {}
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JvmtiDeleter(JvmtiDeleter&) = default;
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JvmtiDeleter(JvmtiDeleter&&) = default;
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JvmtiDeleter& operator=(const JvmtiDeleter&) = default;
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void operator()(unsigned char* ptr) const {
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CHECK(env_ != nullptr);
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jvmtiError ret = env_->Deallocate(ptr);
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CheckJvmtiError(env_, ret);
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}
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private:
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mutable jvmtiEnv* env_;
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};
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using JvmtiUniquePtr = std::unique_ptr<unsigned char, JvmtiDeleter>;
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template <typename T>
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static inline JvmtiUniquePtr MakeJvmtiUniquePtr(jvmtiEnv* env, T* mem) {
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return JvmtiUniquePtr(reinterpret_cast<unsigned char*>(mem), JvmtiDeleter(env));
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}
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template <typename T>
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static inline jvmtiError Deallocate(jvmtiEnv* env, T* mem) {
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return env->Deallocate(reinterpret_cast<unsigned char*>(mem));
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}
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// To print jvmtiError. Does not rely on GetErrorName, so is an approximation.
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std::ostream& operator<<(std::ostream& os, const jvmtiError& rhs);
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template <typename T> void Dealloc(jvmtiEnv* env, T* t) {
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env->Deallocate(reinterpret_cast<unsigned char*>(t));
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}
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template <typename T, typename... Rest> void Dealloc(jvmtiEnv* env, T* t, Rest... rs) {
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Dealloc(env, t);
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Dealloc(env, rs...);
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}
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void* GetExtensionFunctionVoid(JNIEnv* env, jvmtiEnv* jvmti, const std::string_view& name);
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template<typename T> T GetExtensionFunction(JNIEnv* env, jvmtiEnv* jvmti, const std::string_view& name) {
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return reinterpret_cast<T>(GetExtensionFunctionVoid(env, jvmti, name));
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}
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jint GetExtensionEventId(jvmtiEnv* jvmti, const std::string_view& name);
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} // namespace art
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#endif // ART_TEST_TI_AGENT_JVMTI_HELPER_H_
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