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fixed --base-dir command line argument in rs-gui when running multiple instances.

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Only forward "link" and "rsfile" arguments to a running instance.
Start a new instance if other arguments are present.
This commit is contained in:
electron128 2017-04-09 10:26:18 +02:00
parent 7f12ca266b
commit 4c9b62070f
1 changed files with 71 additions and 15 deletions
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86
retroshare-gui/src/rshare.cpp
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@ -68,6 +68,17 @@
#define ARG_RSFILE_L "rsfile" /**< Open RsFile with or without arg */
//Other defined for server in /libretroshare/src/rsserver/rsinit.cc:351
// The arguments here can be send to a running instance.
// If the command line contains arguments not listed here, we have to start a new instance.
// For exmample, the user wants to start a second instance using --base-dir arg of libretroshare.
static const char* const forwardableArgs[] = {
ARG_RSLINK_S,
ARG_RSLINK_L,
ARG_RSFILE_S,
ARG_RSFILE_L,
NULL,
};
/* Static member variables */
QMap<QString, QString> Rshare::_args; /**< List of command-line arguments. */
QString Rshare::_style; /**< The current GUI style. */
@ -115,6 +126,27 @@ void qt_msg_handler(QtMsgType type, const char *msg)
}
}
static bool notifyRunningInstance()
{
// Connect to the Local Server of the main process to notify it
// that a new process had been started
QLocalSocket localSocket;
localSocket.connectToServer(QString(TARGET));
std::cerr << "Rshare::Rshare waitForConnected to other instance." << std::endl;
if( localSocket.waitForConnected(100) )
{
std::cerr << "Rshare::Rshare Connection etablished. Waiting for disconnection." << std::endl;
localSocket.waitForDisconnected(1000);
return true;
}
else
{
std::cerr << "Rshare::Rshare failed to connect to other instance." << std::endl;
return false;
}
}
/** Constructor. Parses the command-line arguments, resets Rshare's
* configuration (if requested), and sets up the GUI style and language
* translation. */
@ -128,7 +160,32 @@ Rshare::Rshare(QStringList args, int &argc, char **argv, const QString &dir)
{
QString serverName = QString(TARGET);
if (!args.isEmpty()) {
// check if another instance is running
bool haveRunningInstance = notifyRunningInstance();
bool sendArgsToRunningInstance = haveRunningInstance;
if(args.empty())
sendArgsToRunningInstance = false;
// if we find non-forwardable args, start a new instance
for(int i = 0; i < args.size(); ++i)
{
const char* const* argit = forwardableArgs;
bool found = false;
while(*argit && i < args.size())
{
if(args.value(i) == "-"+QString(*argit) || args.value(i) == "--"+QString(*argit))
{
found = true;
if(argNeedsValue(*argit))
i++;
}
argit++;
}
if(!found)
sendArgsToRunningInstance = false;
}
if (sendArgsToRunningInstance) {
// load into shared memory
QBuffer buffer;
buffer.open(QBuffer::ReadWrite);
@ -156,30 +213,29 @@ Rshare::Rshare(QStringList args, int &argc, char **argv, const QString &dir)
memcpy(to, from, qMin(newArgs.size(), size));
newArgs.unlock();
// Connect to the Local Server of the main process to notify it
// that a new process had been started
QLocalSocket localSocket;
localSocket.connectToServer(QString(TARGET));
std::cerr << "Rshare::Rshare waitForConnected to other instance." << std::endl;
if( localSocket.waitForConnected(100) )
if(notifyRunningInstance())
{
std::cerr << "Rshare::Rshare Connection etablished. Waiting for disconnection." << std::endl;
localSocket.waitForDisconnected(1000);
newArgs.detach();
std::cerr << "Rshare::Rshare Arguments was sended." << std::endl
<< " To disable it, in Options - General - Misc," << std::endl
<< " uncheck \"Use Local Server to get new Arguments\"." << std::endl;
::exit(EXIT_SUCCESS); // Terminate the program using STDLib's exit function
}
else
std::cerr << "Rshare::Rshare failed to connect to other instance." << std::endl;
newArgs.detach();
}
// No main process exists
// Or started without arguments
// So we start a Local Server to listen for connections from new process
localServer= new QLocalServer();
QObject::connect(localServer, SIGNAL(newConnection()), this, SLOT(slotConnectionEstablished()));
updateLocalServer();
if(!haveRunningInstance)
{
// No main process exists
// Or started without arguments
// So we start a Local Server to listen for connections from new process
localServer= new QLocalServer();
QObject::connect(localServer, SIGNAL(newConnection()), this, SLOT(slotConnectionEstablished()));
updateLocalServer();
}
}
#if QT_VERSION >= QT_VERSION_CHECK (5, 0, 0)