+} // namespace anon
+
+
+
+int Systemcall::startscript(Starttype how, string const & what,
+ string const & path, bool process_events)
+{
+ string outfile;
+ QString cmd = QString::fromLocal8Bit(parsecmd(what, outfile).c_str());
+
+ SystemcallPrivate d(outfile);
+
+
+ d.startProcess(cmd, path);
+ if (!d.waitWhile(SystemcallPrivate::Starting, process_events, -1)) {
+ LYXERR0("Systemcall: '" << cmd << "' did not start!");
+ LYXERR0("error " << d.errorMessage());
+ return 10;
+ }
+
+ if (how == DontWait) {
+ QProcess* released = d.releaseProcess();
+ (void) released; // TODO who deletes it?
+ return 0;
+ }
+
+ if (!d.waitWhile(SystemcallPrivate::Running, process_events,
+ os::timeout_min() * 60 * 1000)) {
+ LYXERR0("Systemcall: '" << cmd << "' did not finish!");
+ LYXERR0("error " << d.errorMessage());
+ LYXERR0("status " << d.exitStatusMessage());
+ return 20;
+ }
+
+ int const exit_code = d.exitCode();
+ if (exit_code) {
+ LYXERR0("Systemcall: '" << cmd << "' finished with exit code " << exit_code);
+ }
+
+ return exit_code;
+}
+
+
+SystemcallPrivate::SystemcallPrivate(const std::string& of) :
+ process_(new QProcess),
+ out_index_(0),
+ err_index_(0),
+ out_file_(of),
+ process_events_(false)
+{
+ if (!out_file_.empty()) {
+ // Check whether we have to simply throw away the output.
+ if (out_file_ != os::nulldev())
+ process_->setStandardOutputFile(QString::fromLocal8Bit(out_file_.c_str()));
+ }
+
+ connect(process_, SIGNAL(readyReadStandardOutput()), SLOT(stdOut()));
+ connect(process_, SIGNAL(readyReadStandardError()), SLOT(stdErr()));
+ connect(process_, SIGNAL(error(QProcess::ProcessError)), SLOT(processError(QProcess::ProcessError)));
+ connect(process_, SIGNAL(started()), this, SLOT(processStarted()));
+ connect(process_, SIGNAL(finished(int, QProcess::ExitStatus)), SLOT(processFinished(int, QProcess::ExitStatus)));
+}
+
+
+void SystemcallPrivate::startProcess(QString const & cmd, string const & path)
+{
+ cmd_ = cmd;
+ if (process_) {
+ state = SystemcallPrivate::Starting;
+ process_->start(toqstr(latexEnvCmdPrefix(path)) + cmd_);
+ }
+}
+
+
+void SystemcallPrivate::processEvents()
+{
+ if(process_events_) {
+ QCoreApplication::processEvents(/*QEventLoop::ExcludeUserInputEvents*/);
+ }
+}
+
+
+void SystemcallPrivate::waitAndProcessEvents()
+{
+ Sleep::millisec(100);
+ processEvents();
+}
+
+
+bool SystemcallPrivate::waitWhile(State waitwhile, bool process_events, int timeout)
+{
+ if (!process_)
+ return false;
+
+ process_events_ = process_events;
+
+ // Block GUI while waiting,
+ // relay on QProcess' wait functions
+ if (!process_events_) {
+ if (waitwhile == Starting)
+ return process_->waitForStarted(timeout);
+ if (waitwhile == Running)
+ return process_->waitForFinished(timeout);
+ return false;
+ }
+
+ // process events while waiting, no timeout
+ if (timeout == -1) {
+ while (state == waitwhile && state != Error) {
+ waitAndProcessEvents();
+ }
+ return state != Error;
+ }
+
+ // process events while waiting whith timeout
+ QTime timer;
+ timer.start();
+ while (state == waitwhile && state != Error && timer.elapsed() < timeout) {
+ waitAndProcessEvents();
+ }
+ return (state != Error) && (timer.elapsed() < timeout);
+}
+
+
+SystemcallPrivate::~SystemcallPrivate()
+{
+ if (out_index_) {
+ out_data_[out_index_] = '\0';
+ out_index_ = 0;
+ cout << out_data_;
+ }
+ cout.flush();
+ if (err_index_) {
+ err_data_[err_index_] = '\0';
+ err_index_ = 0;
+ cerr << err_data_;
+ }
+ cerr.flush();
+
+ killProcess();
+}
+
+
+void SystemcallPrivate::stdOut()
+{
+ if (process_) {
+ char c;
+ process_->setReadChannel(QProcess::StandardOutput);
+ while (process_->getChar(&c)) {
+ out_data_[out_index_++] = c;
+ if (c == '\n' || out_index_ + 1 == buffer_size_) {
+ out_data_[out_index_] = '\0';
+ out_index_ = 0;
+ ProgressInterface::instance()->appendMessage(QString::fromLocal8Bit(out_data_));
+ cout << out_data_;
+ }
+ }
+ }
+}
+
+
+void SystemcallPrivate::stdErr()
+{
+ if (process_) {
+ char c;
+ process_->setReadChannel(QProcess::StandardError);
+ while (process_->getChar(&c)) {
+ err_data_[err_index_++] = c;
+ if (c == '\n' || err_index_ + 1 == buffer_size_) {
+ err_data_[err_index_] = '\0';
+ err_index_ = 0;
+ ProgressInterface::instance()->appendError(QString::fromLocal8Bit(err_data_));
+ cerr << err_data_;
+ }
+ }
+ }
+}
+
+
+void SystemcallPrivate::processStarted()
+{
+ if (state != Running) {
+ state = Running;
+ ProgressInterface::instance()->processStarted(cmd_);
+ }
+}
+
+
+void SystemcallPrivate::processFinished(int, QProcess::ExitStatus)
+{
+ if (state != Finished) {
+ state = Finished;
+ ProgressInterface::instance()->processFinished(cmd_);
+ }
+}
+
+
+void SystemcallPrivate::processError(QProcess::ProcessError)
+{
+ state = Error;
+ ProgressInterface::instance()->appendError(errorMessage());