105 lines
3.6 KiB
C++
105 lines
3.6 KiB
C++
/* Copyright (C) 2018 The Android Open Source Project
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This file implements interfaces from the file jvmti.h. This implementation
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* is licensed under the same terms as the file jvmti.h. The
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* copyright and license information for the file jvmti.h follows.
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*
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* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#ifndef ART_OPENJDKJVMTI_TI_LOGGING_H_
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#define ART_OPENJDKJVMTI_TI_LOGGING_H_
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#include "art_jvmti.h"
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#include <ostream>
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#include <sstream>
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#include <android-base/logging.h>
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#include <android-base/macros.h>
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#include "base/mutex.h"
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#include "thread-current-inl.h"
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namespace openjdkjvmti {
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// NB Uses implementation details of android-base/logging.h.
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#define JVMTI_LOG(severity, env) \
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::openjdkjvmti::JvmtiLogMessage((env), \
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__FILE__, \
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__LINE__, \
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SEVERITY_LAMBDA(severity), \
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_LOG_TAG_INTERNAL, \
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-1)
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class JvmtiLogMessage {
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public:
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JvmtiLogMessage(jvmtiEnv* env,
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const char* file,
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unsigned int line,
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android::base::LogSeverity severity,
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const char* tag,
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int error)
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: env_(ArtJvmTiEnv::AsArtJvmTiEnv(env)),
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real_log_(file, line, severity, tag, error),
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real_log_stream_(real_log_.stream()) {
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DCHECK(env_ != nullptr);
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}
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~JvmtiLogMessage() {
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art::MutexLock mu(art::Thread::Current(), env_->last_error_mutex_);
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env_->last_error_ = save_stream_.str();
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}
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template<typename T>
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JvmtiLogMessage& operator<<(T t) {
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(real_log_stream_ << t);
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(save_stream_ << t);
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return *this;
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}
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private:
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ArtJvmTiEnv* env_;
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android::base::LogMessage real_log_;
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// Lifetime of real_log_stream_ is lifetime of real_log_.
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std::ostream& real_log_stream_;
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std::ostringstream save_stream_;
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DISALLOW_COPY_AND_ASSIGN(JvmtiLogMessage);
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};
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class LogUtil {
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public:
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static jvmtiError ClearLastError(jvmtiEnv* env);
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static jvmtiError GetLastError(jvmtiEnv* env, char** data);
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static jvmtiError SetVerboseFlag(jvmtiEnv* env, jvmtiVerboseFlag flag, jboolean value);
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static jvmtiError SetVerboseFlagExt(jvmtiEnv* env, const char* data, jboolean enable);
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};
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} // namespace openjdkjvmti
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#endif // ART_OPENJDKJVMTI_TI_LOGGING_H_
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