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1 /* |
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2 * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 #include "Platform.h" |
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27 #include "PlatformString.h" |
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28 #include "FilePath.h" |
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29 #include "PropertyFile.h" |
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30 #include "JavaVirtualMachine.h" |
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31 #include "Package.h" |
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32 #include "PlatformThread.h" |
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33 #include "Macros.h" |
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34 #include "Messages.h" |
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35 |
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36 |
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37 #ifdef WINDOWS |
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38 #include <Shellapi.h> |
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39 #endif |
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40 |
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41 |
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42 #include <stdio.h> |
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43 #include <signal.h> |
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44 #include <stdlib.h> |
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45 |
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46 /* |
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47 This is the launcher program for application packaging on Windows, Mac, |
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48 and Linux. |
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49 |
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50 Basic approach: |
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51 - Launcher executable loads jpackager.dll/libjpackager.dylib/libjpackager.so |
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52 and calls start_launcher below. |
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53 - Reads app/package.cfg or Info.plist or app/<appname>.cfg for application |
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54 launch configuration (package.cfg is property file). |
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55 - Load JVM with requested JVM settings (bundled client JVM if availble, |
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56 server or installed JVM otherwise). |
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57 - Wait for JVM to exit and then exit from Main |
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58 - To debug application by passing command line argument. |
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59 - Application folder is added to the library path (so LoadLibrary()) works. |
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60 |
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61 Limitations and future work: |
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62 - Running Java code in primordial thread may cause problems |
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63 (example: can not use custom stack size). |
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64 Solution used by java launcher is to create a new thread to invoke JVM. |
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65 See CR 6316197 for more information. |
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66 */ |
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67 |
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68 extern "C" { |
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69 |
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70 #ifdef WINDOWS |
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71 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, |
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72 LPVOID lpvReserved) { |
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73 return true; |
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74 } |
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75 #endif //WINDOWS |
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76 |
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77 JNIEXPORT bool start_launcher(int argc, TCHAR* argv[]) { |
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78 bool result = false; |
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79 bool parentProcess = true; |
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80 |
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81 // Platform must be initialize first. |
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82 Platform& platform = Platform::GetInstance(); |
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83 |
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84 try { |
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85 for (int index = 0; index < argc; index++) { |
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86 TString argument = argv[index]; |
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87 |
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88 if (argument == _T("-Xappcds:generatecache")) { |
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89 platform.SetAppCDSState(cdsGenCache); |
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90 } |
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91 else if (argument == _T("-Xappcds:off")) { |
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92 platform.SetAppCDSState(cdsDisabled); |
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93 } |
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94 else if (argument == _T("-Xapp:child")) { |
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95 parentProcess = false; |
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96 } |
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97 #ifdef DEBUG |
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98 // There is a compiler bug on Mac when overloading |
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99 // ShowResponseMessage. |
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100 else if (argument == _T("-nativedebug")) { |
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101 if (platform.ShowResponseMessage(_T("Test"), |
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102 TString(_T("Would you like to debug?\n\nProcessID: ")) |
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103 + PlatformString(platform.GetProcessID()).toString()) |
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104 == mrOK) { |
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105 while (platform.IsNativeDebuggerPresent() == false) { |
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106 } |
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107 } |
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108 } |
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109 #endif //DEBUG |
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110 } |
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111 |
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112 // Package must be initialized after Platform is fully initialized. |
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113 Package& package = Package::GetInstance(); |
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114 Macros::Initialize(); |
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115 package.SetCommandLineArguments(argc, argv); |
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116 platform.SetCurrentDirectory(package.GetPackageAppDirectory()); |
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117 |
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118 if (package.CheckForSingleInstance()) { |
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119 // reactivate the first instance if the process Id is valid |
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120 platform.reactivateAnotherInstance(); |
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121 if (package.GetArgs().size() > 0 && |
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122 platform.GetSingleInstanceProcessId() != 0) { |
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123 // if user specified args, pass them to the first instance |
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124 return RunVM(SINGLE_INSTANCE_NOTIFICATION_LAUNCH); |
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125 } |
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126 return true; |
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127 } |
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128 |
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129 switch (platform.GetAppCDSState()) { |
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130 case cdsDisabled: |
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131 case cdsUninitialized: |
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132 case cdsEnabled: { |
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133 break; |
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134 } |
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135 |
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136 case cdsGenCache: { |
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137 TString cacheDirectory = package.GetAppCDSCacheDirectory(); |
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138 |
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139 if (FilePath::DirectoryExists(cacheDirectory) == false) { |
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140 FilePath::CreateDirectory(cacheDirectory, true); |
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141 } else { |
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142 TString cacheFileName = |
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143 package.GetAppCDSCacheFileName(); |
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144 if (FilePath::FileExists(cacheFileName) == true) { |
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145 FilePath::DeleteFile(cacheFileName); |
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146 } |
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147 } |
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148 |
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149 break; |
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150 } |
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151 |
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152 case cdsAuto: { |
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153 TString cacheFileName = package.GetAppCDSCacheFileName(); |
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154 |
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155 if (parentProcess == true && |
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156 FilePath::FileExists(cacheFileName) == false) { |
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157 AutoFreePtr<Process> process = platform.CreateProcess(); |
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158 std::vector<TString> args; |
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159 args.push_back(_T("-Xappcds:generatecache")); |
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160 args.push_back(_T("-Xapp:child")); |
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161 process->Execute( |
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162 platform.GetModuleFileName(), args, true); |
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163 |
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164 if (FilePath::FileExists(cacheFileName) == false) { |
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165 // Cache does not exist after trying to generate it, |
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166 // so run without cache. |
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167 platform.SetAppCDSState(cdsDisabled); |
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168 package.Clear(); |
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169 package.Initialize(); |
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170 } |
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171 } |
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172 |
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173 break; |
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174 } |
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175 } |
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176 |
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177 // Validation |
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178 switch (platform.GetAppCDSState()) { |
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179 case cdsDisabled: |
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180 case cdsGenCache: { |
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181 // Do nothing. |
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182 break; |
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183 } |
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184 |
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185 case cdsEnabled: |
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186 case cdsAuto: { |
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187 TString cacheFileName = |
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188 package.GetAppCDSCacheFileName(); |
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189 |
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190 if (FilePath::FileExists(cacheFileName) == false) { |
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191 Messages& messages = Messages::GetInstance(); |
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192 TString message = PlatformString::Format( |
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193 messages.GetMessage( |
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194 APPCDS_CACHE_FILE_NOT_FOUND), |
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195 cacheFileName.data()); |
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196 throw FileNotFoundException(message); |
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197 } |
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198 break; |
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199 } |
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200 |
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201 case cdsUninitialized: { |
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202 platform.ShowMessage(_T("Internal Error")); |
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203 break; |
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204 } |
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205 } |
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206 |
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207 // Run App |
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208 result = RunVM(USER_APP_LAUNCH); |
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209 } catch (FileNotFoundException &e) { |
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210 platform.ShowMessage(e.GetMessage()); |
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211 } |
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212 |
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213 return result; |
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214 } |
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215 |
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216 JNIEXPORT void stop_launcher() { |
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217 } |
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218 } |