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/*
* Copyright (C) 2017 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 ART_TEST_TI_AGENT_JVMTI_HELPER_H_
#define ART_TEST_TI_AGENT_JVMTI_HELPER_H_
#include <memory>
#include <ostream>
#include "jni.h"
#include "jvmti.h"
#include "android-base/logging.h"
namespace art {
// Get a standard set of capabilities for use in tests.
jvmtiCapabilities GetStandardCapabilities();
// Add all the standard capabilities to the given env.
void SetStandardCapabilities(jvmtiEnv* env);
// Add all capabilities to the given env.
// TODO Remove this in the future.
void SetAllCapabilities(jvmtiEnv* env);
// Check whether the given error is NONE. If not, print out the corresponding error message
// and abort.
void CheckJvmtiError(jvmtiEnv* env, jvmtiError error);
// Convert the given error to a RuntimeException with a message derived from the error. Returns
// true on error, false if error is JVMTI_ERROR_NONE.
bool JvmtiErrorToException(JNIEnv* env, jvmtiEnv* jvmtienv, jvmtiError error);
class JvmtiDeleter {
public:
JvmtiDeleter() : env_(nullptr) {}
explicit JvmtiDeleter(jvmtiEnv* env) : env_(env) {}
JvmtiDeleter(JvmtiDeleter&) = default;
JvmtiDeleter(JvmtiDeleter&&) = default;
JvmtiDeleter& operator=(const JvmtiDeleter&) = default;
void operator()(unsigned char* ptr) const {
CHECK(env_ != nullptr);
jvmtiError ret = env_->Deallocate(ptr);
CheckJvmtiError(env_, ret);
}
private:
mutable jvmtiEnv* env_;
};
using JvmtiUniquePtr = std::unique_ptr<unsigned char, JvmtiDeleter>;
template <typename T>
static inline JvmtiUniquePtr MakeJvmtiUniquePtr(jvmtiEnv* env, T* mem) {
return JvmtiUniquePtr(reinterpret_cast<unsigned char*>(mem), JvmtiDeleter(env));
}
template <typename T>
static inline jvmtiError Deallocate(jvmtiEnv* env, T* mem) {
return env->Deallocate(reinterpret_cast<unsigned char*>(mem));
}
// To print jvmtiError. Does not rely on GetErrorName, so is an approximation.
std::ostream& operator<<(std::ostream& os, const jvmtiError& rhs);
template <typename T> void Dealloc(jvmtiEnv* env, T* t) {
env->Deallocate(reinterpret_cast<unsigned char*>(t));
}
template <typename T, typename... Rest> void Dealloc(jvmtiEnv* env, T* t, Rest... rs) {
Dealloc(env, t);
Dealloc(env, rs...);
}
void* GetExtensionFunctionVoid(JNIEnv* env, jvmtiEnv* jvmti, const std::string_view& name);
template<typename T> T GetExtensionFunction(JNIEnv* env, jvmtiEnv* jvmti, const std::string_view& name) {
return reinterpret_cast<T>(GetExtensionFunctionVoid(env, jvmti, name));
}
jint GetExtensionEventId(jvmtiEnv* jvmti, const std::string_view& name);
} // namespace art
#endif // ART_TEST_TI_AGENT_JVMTI_HELPER_H_
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