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