1 /*
2 * Copyright (c) 2014, 2015, 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 #include "Platform.h"
35 #include "PlatformString.h"
36 #include "FilePath.h"
37 #include "PropertyFile.h"
38 #include "JavaVirtualMachine.h"
39 #include "Package.h"
40 #include "PlatformThread.h"
41 #include "Macros.h"
42 #include "Messages.h"
43
44
45 #ifdef WINDOWS
46 #include <Shellapi.h>
47 #endif
48
49
50 #include <stdio.h>
51 #include <signal.h>
52 #include <stdlib.h>
53
54 /*
55 This is the launcher program for application packaging on Windows, Mac and Linux.
56
57 Basic approach:
58 - Launcher executable loads packager.dll/libpackager.dylib/libpackager.so and calls start_launcher below.
59 - Reads app/package.cfg or Info.plist or app/<appname>.cfg for application launch configuration
60 (package.cfg is property file).
61 - Load JVM with requested JVM settings (bundled client JVM if availble, server or installed JVM otherwise).
62 - Wait for JVM to exit and then exit from Main
63 - To debug application by passing command line argument.
64 - Application folder is added to the library path (so LoadLibrary()) works.
65
66 Limitations and future work:
67 - Running Java code in primordial thread may cause problems
68 (example: can not use custom stack size).
69 Solution used by java launcher is to create a new thread to invoke JVM.
70 See CR 6316197 for more information.
71 */
72
73 extern "C" {
74
75 #ifdef WINDOWS
76 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) {
77 return true;
78 }
79
80 __declspec(dllexport)
81 #endif //WINDOWS
82
83 bool start_launcher(int argc, TCHAR* argv[]) {
84 bool result = false;
85 bool parentProcess = true;
86
87 // Platform must be initialize first.
88 Platform& platform = Platform::GetInstance();
89
90 try {
91 for (int index = 0; index < argc; index++) {
92 TString argument = argv[index];
93
94 if (argument == _T("-Xappcds:generatecache")) {
95 platform.SetAppCDSState(cdsGenCache);
96 }
97 else if (argument == _T("-Xappcds:off")) {
98 platform.SetAppCDSState(cdsDisabled);
99 }
100 else if (argument == _T("-Xapp:child")) {
101 parentProcess = false;
102 }
103 #ifdef DEBUG
104 // There is a compiler bug on Mac when overloading ShowResponseMessage.
105 else if (argument == _T("-nativedebug")) {
106 if (platform.ShowResponseMessage(_T("Test"),
107 TString(_T("Would you like to debug?\n\nProcessID: ")) +
108 PlatformString(platform.GetProcessID()).toString()) == mrOK) {
109 while (platform.IsNativeDebuggerPresent() == false) {
110 }
111 }
112 }
113 #endif //DEBUG
114 }
115
116 // Package must be initialized after Platform is fully initialized.
117 Package& package = Package::GetInstance();
118 Macros::Initialize();
119 package.SetCommandLineArguments(argc, argv);
120 platform.SetCurrentDirectory(package.GetPackageAppDirectory());
121
122 switch (platform.GetAppCDSState()) {
123 case cdsDisabled:
124 case cdsUninitialized:
125 case cdsEnabled: {
126 break;
127 }
128
129 case cdsGenCache: {
130 TString cacheDirectory = package.GetAppCDSCacheDirectory();
131
132 if (FilePath::DirectoryExists(cacheDirectory) == false) {
133 FilePath::CreateDirectory(cacheDirectory, true);
134 }
135 else {
136 TString cacheFileName = package.GetAppCDSCacheFileName();
137
138 if (FilePath::FileExists(cacheFileName) == true) {
139 FilePath::DeleteFile(cacheFileName);
140 }
141 }
142
143 break;
144 }
145
146 case cdsAuto: {
147 TString cacheFileName = package.GetAppCDSCacheFileName();
148
149 if (parentProcess == true && FilePath::FileExists(cacheFileName) == false) {
150 AutoFreePtr<Process> process = platform.CreateProcess();
151 std::vector<TString> args;
152 args.push_back(_T("-Xappcds:generatecache"));
153 args.push_back(_T("-Xapp:child"));
154 process->Execute(platform.GetModuleFileName(), args, true);
155
156 if (FilePath::FileExists(cacheFileName) == false) {
157 // Cache does not exist after trying to generate it,
158 // so run without cache.
159 platform.SetAppCDSState(cdsDisabled);
160 package.Clear();
161 package.Initialize();
162 }
163 }
164
165 break;
166 }
167 }
168
169 // Validation
170 {
171 switch (platform.GetAppCDSState()) {
172 case cdsDisabled:
173 case cdsGenCache: {
174 // Do nothing.
175 break;
176 }
177
178 case cdsEnabled:
179 case cdsAuto: {
180 TString cacheFileName = package.GetAppCDSCacheFileName();
181
182 if (FilePath::FileExists(cacheFileName) == false) {
183 Messages& messages = Messages::GetInstance();
184 TString message = PlatformString::Format(messages.GetMessage(APPCDS_CACHE_FILE_NOT_FOUND), cacheFileName.data());
185 throw FileNotFoundException(message);
186 }
187 break;
188 }
189
190 case cdsUninitialized: {
191 throw Exception(_T("Internal Error"));
192 }
193 }
194 }
195
196 // Run App
197 result = RunVM();
198 }
199 catch (FileNotFoundException &e) {
200 platform.ShowMessage(e.GetMessage());
201 }
202
203 return result;
204 }
205
206 #ifdef WINDOWS
207 __declspec(dllexport)
208 #endif //WINDOWS
209
210 void stop_launcher() {
211 }
212 }