/*
* Copyright (c) 2014, 2019, 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.
*/
#include "JavaVirtualMachine.h"
#include "Platform.h"
#include "PlatformString.h"
#include "FilePath.h"
#include "Package.h"
#include "Helpers.h"
#include "Messages.h"
#include "Macros.h"
#include "jni.h"
#include <map>
#include <list>
#include <sstream>
bool RunVM() {
JavaVirtualMachine javavm;
bool result = javavm.StartJVM();
if (!result) {
Platform& platform = Platform::GetInstance();
platform.ShowMessage(_T("Failed to launch JVM\n"));
}
return result;
}
//----------------------------------------------------------------------------
JavaOptions::JavaOptions(): FOptions(NULL) {
}
JavaOptions::~JavaOptions() {
if (FOptions != NULL) {
for (unsigned int index = 0; index < GetCount(); index++) {
delete[] FOptions[index].optionString;
}
delete[] FOptions;
}
}
void JavaOptions::AppendValue(const TString Key, TString Value, void* Extra) {
JavaOptionItem item;
item.name = Key;
item.value = Value;
item.extraInfo = Extra;
FItems.push_back(item);
}
void JavaOptions::AppendValue(const TString Key, TString Value) {
AppendValue(Key, Value, NULL);
}
void JavaOptions::AppendValue(const TString Key) {
AppendValue(Key, _T(""), NULL);
}
void JavaOptions::AppendValues(OrderedMap<TString, TString> Values) {
std::vector<TString> orderedKeys = Values.GetKeys();
for (std::vector<TString>::const_iterator iterator = orderedKeys.begin();
iterator != orderedKeys.end(); iterator++) {
TString name = *iterator;
TString value;
if (Values.GetValue(name, value) == true) {
AppendValue(name, value);
}
}
}
void JavaOptions::ReplaceValue(const TString Key, TString Value) {
for (std::list<JavaOptionItem>::iterator iterator = FItems.begin();
iterator != FItems.end(); iterator++) {
TString lkey = iterator->name;
if (lkey == Key) {
JavaOptionItem item = *iterator;
item.value = Value;
iterator = FItems.erase(iterator);
FItems.insert(iterator, item);
break;
}
}
}
std::list<TString> JavaOptions::ToList() {
std::list<TString> result;
Macros& macros = Macros::GetInstance();
for (std::list<JavaOptionItem>::const_iterator iterator = FItems.begin();
iterator != FItems.end(); iterator++) {
TString key = iterator->name;
TString value = iterator->value;
TString option = Helpers::NameValueToString(key, value);
option = macros.ExpandMacros(option);
result.push_back(option);
}
return result;
}
size_t JavaOptions::GetCount() {
return FItems.size();
}
//----------------------------------------------------------------------------
JavaVirtualMachine::JavaVirtualMachine() {
}
JavaVirtualMachine::~JavaVirtualMachine(void) {
}
bool JavaVirtualMachine::StartJVM() {
Platform& platform = Platform::GetInstance();
Package& package = Package::GetInstance();
TString classpath = package.GetClassPath();
TString modulepath = package.GetModulePath();
JavaOptions options;
if (modulepath.empty() == false) {
options.AppendValue(_T("-Djava.module.path"), modulepath);
}
options.AppendValue(_T("-Djava.library.path"),
package.GetPackageAppDirectory() + FilePath::PathSeparator()
+ package.GetPackageLauncherDirectory());
options.AppendValue(
_T("-Djava.launcher.path"), package.GetPackageLauncherDirectory());
options.AppendValues(package.GetJavaOptions());
#ifdef DEBUG
if (package.Debugging() == dsJava) {
options.AppendValue(_T("-Xdebug"), _T(""));
options.AppendValue(
_T("-Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=localhost:5005"),
_T(""));
platform.ShowMessage(_T("localhost:5005"));
}
#endif // DEBUG
TString maxHeapSizeOption;
TString minHeapSizeOption;
if (package.GetMemoryState() == PackageBootFields::msAuto) {
TPlatformNumber memorySize = package.GetMemorySize();
TString memory =
PlatformString((size_t)memorySize).toString() + _T("m");
maxHeapSizeOption = TString(_T("-Xmx")) + memory;
options.AppendValue(maxHeapSizeOption, _T(""));
if (memorySize > 256)
minHeapSizeOption = _T("-Xms256m");
else
minHeapSizeOption = _T("-Xms") + memory;
options.AppendValue(minHeapSizeOption, _T(""));
}
TString mainClassName = package.GetMainClassName();
TString mainModule = package.GetMainModule();
if (mainClassName.empty() == true && mainModule.empty() == true) {
Messages& messages = Messages::GetInstance();
platform.ShowMessage(messages.GetMessage(NO_MAIN_CLASS_SPECIFIED));
return false;
}
configureLibrary();
// Initialize the arguments to JLI_Launch()
//
// On Mac OS X JLI_Launch spawns a new thread that actually starts the JVM.
// This new thread simply re-runs main(argc, argv). Therefore we do not
// want to add new args if we are still in the original main thread so we
// will treat them as command line args provided by the user ...
// Only propagate original set of args first time.
options.AppendValue(_T("-classpath"));
options.AppendValue(classpath);
std::list<TString> vmargs;
vmargs.push_back(package.GetCommandName());
if (package.HasSplashScreen() == true) {
options.AppendValue(TString(_T("-splash:"))
+ package.GetSplashScreenFileName(), _T(""));
}
if (mainModule.empty() == true) {
options.AppendValue(Helpers::ConvertJavaPathToId(mainClassName),
_T(""));
} else {
options.AppendValue(_T("-m"));
options.AppendValue(mainModule);
}
return launchVM(options, vmargs);
}
void JavaVirtualMachine::configureLibrary() {
Platform& platform = Platform::GetInstance();
Package& package = Package::GetInstance();
TString libName = package.GetJavaLibraryFileName();
platform.addPlatformDependencies(&javaLibrary);
javaLibrary.Load(libName);
}
bool JavaVirtualMachine::launchVM(JavaOptions& options,
std::list<TString>& vmargs) {
Platform& platform = Platform::GetInstance();
Package& package = Package::GetInstance();
#ifdef MAC
// Mac adds a ProcessSerialNumber to args when launched from .app
// filter out the psn since they it's not expected in the app
if (platform.IsMainThread() == false) {
std::list<TString> loptions = options.ToList();
vmargs.splice(vmargs.end(), loptions,
loptions.begin(), loptions.end());
}
#else
std::list<TString> loptions = options.ToList();
vmargs.splice(vmargs.end(), loptions, loptions.begin(), loptions.end());
#endif
std::list<TString> largs = package.GetArgs();
vmargs.splice(vmargs.end(), largs, largs.begin(), largs.end());
size_t argc = vmargs.size();
DynamicBuffer<char*> argv(argc + 1);
if (argv.GetData() == NULL) {
return false;
}
unsigned int index = 0;
for (std::list<TString>::const_iterator iterator = vmargs.begin();
iterator != vmargs.end(); iterator++) {
TString item = *iterator;
std::string arg = PlatformString(item).toStdString();
#ifdef DEBUG
printf("%i %s\n", index, arg.c_str());
#endif // DEBUG
argv[index] = PlatformString::duplicate(arg.c_str());
index++;
}
argv[argc] = NULL;
// On Mac we can only free the boot fields if the calling thread is
// not the main thread.
#ifdef MAC
if (platform.IsMainThread() == false) {
package.FreeBootFields();
}
#else
package.FreeBootFields();
#endif // MAC
if (javaLibrary.JavaVMCreate(argc, argv.GetData()) == true) {
return true;
}
for (index = 0; index < argc; index++) {
if (argv[index] != NULL) {
delete[] argv[index];
}
}
return false;
}