1 /*
   2  * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #ifndef PLATFORM_H
  27 #define PLATFORM_H
  28 
  29 #include "PlatformDefs.h"
  30 #include "Properties.h"
  31 #include "OrderedMap.h"
  32 #include "Library.h"
  33 
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <memory.h>
  37 #include <string>
  38 #include <map>
  39 #include <list>
  40 #include <vector>
  41 #include <fstream>
  42 
  43 using namespace std;
  44 
  45 // Config file sections
  46 #define CONFIG_SECTION_APPLICATION        _T("CONFIG_SECTION_APPLICATION")
  47 #define CONFIG_SECTION_JAVAOPTIONS        _T("CONFIG_SECTION_JAVAOPTIONS")
  48 #define CONFIG_SECTION_APPCDSJAVAOPTIONS  _T("CONFIG_SECTION_APPCDSJAVAOPTIONS")
  49 #define CONFIG_SECTION_ARGOPTIONS         _T("CONFIG_SECTION_ARGOPTIONS")
  50 #define CONFIG_SECTION_APPCDSGENERATECACHEJAVAOPTIONS \
  51         _T("CONFIG_SECTION_APPCDSGENERATECACHEJAVAOPTIONS")
  52 
  53 // Config file keys.
  54 #define CONFIG_VERSION            _T("CONFIG_VERSION")
  55 #define CONFIG_MAINJAR_KEY        _T("CONFIG_MAINJAR_KEY")
  56 #define CONFIG_MAINMODULE_KEY     _T("CONFIG_MAINMODULE_KEY")
  57 #define CONFIG_MAINCLASSNAME_KEY  _T("CONFIG_MAINCLASSNAME_KEY")
  58 #define CONFIG_CLASSPATH_KEY      _T("CONFIG_CLASSPATH_KEY")
  59 #define CONFIG_MODULEPATH_KEY     _T("CONFIG_MODULEPATH_KEY")
  60 #define APP_NAME_KEY              _T("APP_NAME_KEY")
  61 #define CONFIG_SPLASH_KEY         _T("CONFIG_SPLASH_KEY")
  62 #define CONFIG_APP_MEMORY         _T("CONFIG_APP_MEMORY")
  63 #define CONFIG_APP_DEBUG          _T("CONFIG_APP_DEBUG")
  64 #define CONFIG_APPLICATION_INSTANCE _T("CONFIG_APPLICATION_INSTANCE")
  65 
  66 #define JAVA_RUNTIME_KEY           _T("JAVA_RUNTIME_KEY")
  67 #define JPACKAGE_APP_DATA_DIR     _T("CONFIG_APP_IDENTIFIER")
  68 
  69 struct WideString {
  70     size_t length;
  71     wchar_t* data;
  72 
  73     WideString() { length = 0; data = NULL; }
  74 };
  75 
  76 struct MultibyteString {
  77     size_t length;
  78     char* data;
  79 
  80     MultibyteString() { length = 0; data = NULL; }
  81 };
  82 
  83 class Process {
  84 protected:
  85     std::list<TString> FOutput;
  86 
  87 public:
  88     Process() {
  89         Output.SetInstance(this);
  90         Input.SetInstance(this);
  91     }
  92 
  93     virtual ~Process() {}
  94 
  95     virtual bool IsRunning() = 0;
  96     virtual bool Terminate() = 0;
  97     virtual bool Execute(const TString Application,
  98         const std::vector<TString> Arguments, bool AWait = false) = 0;
  99     virtual bool Wait() = 0;
 100     virtual TProcessID GetProcessID() = 0;
 101 
 102     virtual std::list<TString> GetOutput() { return FOutput; }
 103     virtual void SetInput(TString Value) = 0;
 104 
 105     ReadProperty<Process, std::list<TString>, &Process::GetOutput> Output;
 106     WriteProperty<Process, TString, &Process::SetInput> Input;
 107 };
 108 
 109 
 110 template <typename T>
 111 class AutoFreePtr {
 112 private:
 113     T* FObject;
 114 
 115 public:
 116     AutoFreePtr() {
 117         FObject = NULL;
 118     }
 119 
 120     AutoFreePtr(T* Value) {
 121         FObject = Value;
 122     }
 123 
 124     ~AutoFreePtr() {
 125         if (FObject != NULL) {
 126             delete FObject;
 127         }
 128     }
 129 
 130     operator T* () const {
 131         return FObject;
 132     }
 133 
 134     T& operator* () const {
 135         return *FObject;
 136     }
 137 
 138     T* operator->() const {
 139         return FObject;
 140     }
 141 
 142     T** operator&() {
 143         return &FObject;
 144     }
 145 
 146     T* operator=(const T * rhs) {
 147         FObject = rhs;
 148         return FObject;
 149     }
 150 };
 151 
 152 enum DebugState {dsNone, dsNative, dsJava};
 153 enum MessageResponse {mrOK, mrCancel};
 154 enum AppCDSState {cdsUninitialized, cdsDisabled,
 155         cdsEnabled, cdsAuto, cdsGenCache};
 156 
 157 class Platform {
 158 private:
 159     AppCDSState FAppCDSState;
 160 
 161 protected:
 162     Platform(void): FAppCDSState(cdsUninitialized) {
 163     }
 164 
 165 public:
 166     AppCDSState GetAppCDSState() { return FAppCDSState; }
 167     void SetAppCDSState(AppCDSState Value) { FAppCDSState = Value; }
 168 
 169     static Platform& GetInstance();
 170 
 171     virtual ~Platform(void) {}
 172 
 173 public:
 174     virtual void ShowMessage(TString title, TString description) = 0;
 175     virtual void ShowMessage(TString description) = 0;
 176     virtual MessageResponse ShowResponseMessage(TString title,
 177            TString description) = 0;
 178 
 179     virtual void SetCurrentDirectory(TString Value) = 0;
 180 
 181     // Caller must free result using delete[].
 182     virtual TCHAR* ConvertStringToFileSystemString(TCHAR* Source,
 183             bool &release) = 0;
 184 
 185     // Caller must free result using delete[].
 186     virtual TCHAR* ConvertFileSystemStringToString(TCHAR* Source,
 187             bool &release) = 0;
 188 
 189     // Returns:
 190     // Windows=C:\Users\<username>\AppData\Local
 191     // Linux=~/.local
 192     // Mac=~/Library/Application Support
 193     virtual TString GetAppDataDirectory() = 0;
 194 
 195     virtual TString GetPackageAppDirectory() = 0;
 196     virtual TString GetPackageLauncherDirectory() = 0;
 197     virtual TString GetPackageRuntimeBinDirectory() = 0;
 198     virtual TString GetAppName() = 0;
 199 
 200     virtual TString GetConfigFileName();
 201 
 202     virtual TString GetBundledJavaLibraryFileName(TString RuntimePath) = 0;
 203 
 204     // Caller must free result.
 205     virtual ISectionalPropertyContainer* GetConfigFile(TString FileName) = 0;
 206 
 207     virtual TString GetModuleFileName() = 0;
 208     virtual TString GetPackageRootDirectory() = 0;
 209 
 210     virtual Module LoadLibrary(TString FileName) = 0;
 211     virtual void FreeLibrary(Module Module) = 0;
 212     virtual Procedure GetProcAddress(Module Module, std::string MethodName) = 0;
 213 
 214     // Caller must free result.
 215     virtual Process* CreateProcess() = 0;
 216 
 217     virtual bool IsMainThread() = 0;
 218 
 219     // Returns megabytes.
 220     virtual TPlatformNumber GetMemorySize() = 0;
 221 
 222     virtual std::map<TString, TString> GetKeys();
 223 
 224     virtual void InitStreamLocale(wios *stream) = 0;
 225     virtual std::list<TString> LoadFromFile(TString FileName);
 226     virtual void SaveToFile(TString FileName,
 227              std::list<TString> Contents, bool ownerOnly);
 228 
 229     virtual TString GetTempDirectory() = 0;
 230 
 231     virtual void addPlatformDependencies(JavaLibrary *pJavaLibrary) = 0;
 232 
 233 public:
 234     // String helpers
 235     // Caller must free result using delete[].
 236     static void CopyString(char *Destination,
 237             size_t NumberOfElements, const char *Source);
 238 
 239     // Caller must free result using delete[].
 240     static void CopyString(wchar_t *Destination,
 241             size_t NumberOfElements, const wchar_t *Source);
 242 
 243     static WideString MultibyteStringToWideString(const char* value);
 244     static MultibyteString WideStringToMultibyteString(const wchar_t* value);
 245 };
 246 
 247 class Exception: public std::exception {
 248 private:
 249     TString FMessage;
 250 
 251 protected:
 252     void SetMessage(const TString Message) {
 253         FMessage = Message;
 254     }
 255 
 256 public:
 257     explicit Exception() : exception() {}
 258     explicit Exception(const TString Message) : exception() {
 259         SetMessage(Message);
 260     }
 261     virtual ~Exception() throw() {}
 262 
 263     TString GetMessage() { return FMessage; }
 264 };
 265 
 266 #endif // PLATFORM_H