/*
 * Copyright (c) 2014, 2018, 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 JAVAVIRTUALMACHINE_H
#define JAVAVIRTUALMACHINE_H


#include "jni.h"
#include "Platform.h"


enum JvmLaunchType {
    USER_APP_LAUNCH,
    SINGLE_INSTANCE_NOTIFICATION_LAUNCH,
    JVM_LAUNCH_TYPES_NUM
};

struct JavaOptionItem {
    TString name;
    TString value;
    void* extraInfo;
};

class JavaOptions {
private:
    std::list<JavaOptionItem> FItems;
    JavaVMOption* FOptions;

public:
    JavaOptions();
    ~JavaOptions();

    void AppendValue(const TString Key, TString Value, void* Extra);
    void AppendValue(const TString Key, TString Value);
    void AppendValue(const TString Key);
    void AppendValues(OrderedMap<TString, TString> Values);
    void ReplaceValue(const TString Key, TString Value);
    std::list<TString> ToList();
    size_t GetCount();
};

// Private typedef for function pointer casting
#define LAUNCH_FUNC "JLI_Launch"

typedef int (JNICALL *JVM_CREATE)(int argc, char ** argv,
                                  int jargc, const char** jargv,
                                  int appclassc, const char** appclassv,
                                  const char* fullversion,
                                  const char* dotversion,
                                  const char* pname,
                                  const char* lname,
                                  jboolean javaargs,
                                  jboolean cpwildcard,
                                  jboolean javaw,
                                  jint ergo);

class JavaLibrary : public Library {
    JVM_CREATE FCreateProc;
    JavaLibrary(const TString &FileName);
public:
    JavaLibrary();
    bool JavaVMCreate(size_t argc, char *argv[]);
};

class JavaVirtualMachine {
private:
    JavaLibrary javaLibrary;

    void configureLibrary();
    bool launchVM(JavaOptions& options, std::list<TString>& vmargs,
            bool addSiProcessId);
public:
    JavaVirtualMachine();
    ~JavaVirtualMachine(void);

    bool StartJVM();
    bool NotifySingleInstance();
};

bool RunVM(JvmLaunchType type);

#endif // JAVAVIRTUALMACHINE_H