1 /*
   2  * Copyright (c) 2014, 2016, Oracle and/or its affiliates.
   3  * All rights reserved. Use is subject to license terms.
   4  *
   5  * This file is available and licensed under the following license:
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  *  - Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  *  - Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the distribution.
  16  *  - Neither the name of Oracle Corporation nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32 
  33 
  34 #ifndef JAVAVIRTUALMACHINE_H
  35 #define JAVAVIRTUALMACHINE_H
  36 
  37 
  38 #include "jni.h"
  39 #include "Platform.h"
  40 
  41 
  42 enum JvmLaunchType {
  43     USER_APP_LAUNCH,
  44     SINGLE_INSTANCE_NOTIFICATION_LAUNCH,
  45     JVM_LAUNCH_TYPES_NUM
  46 };
  47 
  48 struct JavaOptionItem {
  49     TString name;
  50     TString value;
  51     void* extraInfo;
  52 };
  53 
  54 class JavaOptions {
  55 private:
  56     std::list<JavaOptionItem> FItems;
  57     JavaVMOption* FOptions;
  58 
  59 public:
  60     JavaOptions();
  61     ~JavaOptions();
  62 
  63     void AppendValue(const TString Key, TString Value, void* Extra);
  64     void AppendValue(const TString Key, TString Value);
  65     void AppendValue(const TString Key);
  66     void AppendValues(OrderedMap<TString, TString> Values);
  67     void ReplaceValue(const TString Key, TString Value);
  68     std::list<TString> ToList();
  69     size_t GetCount();
  70 };
  71 
  72 // Private typedef for function pointer casting
  73 #define LAUNCH_FUNC "JLI_Launch"
  74 
  75 typedef int (JNICALL *JVM_CREATE)(int argc, char ** argv,
  76                                   int jargc, const char** jargv,
  77                                   int appclassc, const char** appclassv,
  78                                   const char* fullversion,
  79                                   const char* dotversion,
  80                                   const char* pname,
  81                                   const char* lname,
  82                                   jboolean javaargs,
  83                                   jboolean cpwildcard,
  84                                   jboolean javaw,
  85                                   jint ergo);
  86 
  87 class JavaLibrary : public Library {
  88     JVM_CREATE FCreateProc;
  89     JavaLibrary(const TString &FileName);
  90 public:
  91     JavaLibrary();
  92     bool JavaVMCreate(size_t argc, char *argv[]);
  93 };
  94 
  95 class JavaVirtualMachine {
  96 private:
  97     JavaLibrary javaLibrary;
  98 
  99     void configureLibrary();
 100     bool launchVM(JavaOptions& options, std::list<TString>& vmargs, bool addSiProcessId);
 101 public:
 102     JavaVirtualMachine();
 103     ~JavaVirtualMachine(void);
 104 
 105     bool StartJVM();
 106     bool NotifySingleInstance();
 107 };
 108 
 109 bool RunVM(JvmLaunchType type);
 110 
 111 #endif //JAVAVIRTUALMACHINE_H