src/support/Systemcall.cpp

   1 /**
   2  * \file Systemcall.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Angus Leeming
   8  * \author Enrico Forestieri
   9  * \author Peter Kuemmel
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "support/debug.h"
  17 #include "support/filetools.h"
  18 #include "support/gettext.h"
  19 #include "support/lstrings.h"
  20 #include "support/qstring_helpers.h"
  21 #include "support/Systemcall.h"
  22 #include "support/SystemcallPrivate.h"
  23 #include "support/os.h"
  24 #include "support/ProgressInterface.h"
  25
  26 #include "LyX.h"
  27
  28 #include <cstdlib>
  29 #include <iostream>
  30
  31 #include <QProcess>
  32 #include <QElapsedTimer>
  33 #include <QThread>
  34 #include <QCoreApplication>
  35 #include <QDebug>
  36
  37 #define USE_QPROCESS
  38
  39
  40 struct Sleep : QThread
  41 {
  42         static void millisec(unsigned long ms)
  43         {
  44                 QThread::usleep(ms * 1000);
  45         }
  46 };
  47
  48
  49
  50
  51 using namespace std;
  52
  53 namespace lyx {
  54 namespace support {
  55
  56
  57 class ProgressDummy : public ProgressInterface
  58 {
  59 public:
  60         ProgressDummy() {}
  61
  62         void processStarted(QString const &) override {}
  63         void processFinished(QString const &) override {}
  64         void appendMessage(QString const &) override {}
  65         void appendError(QString const &) override {}
  66         void clearMessages() override {}
  67         void lyxerrFlush() override {}
  68
  69         void lyxerrConnect() override {}
  70         void lyxerrDisconnect() override {}
  71
  72         void warning(QString const &, QString const &) override {}
  73         void toggleWarning(QString const &, QString const &, QString const &) override {}
  74         void error(QString const &, QString const &, QString const &) override {}
  75         void information(QString const &, QString const &) override {}
  76         int prompt(docstring const &, docstring const &, int default_but, int,
  77                    docstring const &, docstring const &) override { return default_but; }
  78 };
  79
  80
  81 static ProgressInterface * progress_instance = nullptr;
  82
  83 void ProgressInterface::setInstance(ProgressInterface* p)
  84 {
  85         progress_instance = p;
  86 }
  87
  88
  89 ProgressInterface * ProgressInterface::instance()
  90 {
  91         if (!progress_instance) {
  92                 static ProgressDummy dummy;
  93                 return &dummy;
  94         }
  95         return progress_instance;
  96 }
  97
  98
  99
 100
 101 // Reuse of instance
 102 #ifndef USE_QPROCESS
 103 int Systemcall::startscript(Starttype how, string const & what,
 104                             string const & path, string const & lpath,
 105                             bool /*process_events*/)
 106 {
 107         string command =
 108                 to_filesystem8bit(from_utf8(latexEnvCmdPrefix(path, lpath)))
 109                        + commandPrep(what);
 110
 111         if (how == DontWait) {
 112                 switch (os::shell()) {
 113                 case os::UNIX:
 114                         command += " &";
 115                         break;
 116                 case os::CMD_EXE:
 117                         command = "start /min " + command;
 118                         break;
 119                 }
 120         } else if (os::shell() == os::CMD_EXE)
 121                 command = subst(command, "cmd /d /c ", "");
 122
 123         return ::system(command.c_str());
 124 }
 125
 126 #else
 127
 128 namespace {
 129
 130 /*
 131  * This is a parser that (mostly) mimics the behavior of a posix shell as
 132  * regards quoting, but its output is tailored for being processed by QProcess.
 133  * Note that shell metacharacters are not parsed.
 134  *
 135  * The escape character is the backslash.
 136  * A backslash that is not quoted preserves the literal value of the following
 137  * character, with the exception of a double-quote '"'. If a double-quote
 138  * follows a backslash, it will be replaced by three consecutive double-quotes
 139  * (this is how the QProcess parser recognizes a '"' as a simple character
 140  * instead of a quoting character). Thus, for example:
 141  *     \\  ->  \
 142  *     \a  ->  a
 143  *     \"  ->  """
 144  *
 145  * Single-quotes.
 146  * Characters enclosed in single-quotes ('') have their literal value preserved.
 147  * A single-quote cannot occur within single-quotes. Indeed, a backslash cannot
 148  * be used to escape a single-quote in a single-quoted string. In other words,
 149  * anything enclosed in single-quotes is passed as is, but the single-quotes
 150  * themselves are eliminated. Thus, for example:
 151  *    '\'    ->  \
 152  *    '\\'   ->  \\
 153  *    '\a'   ->  \a
 154  *    'a\"b' ->  a\"b
 155  *
 156  * Double-quotes.
 157  * Characters enclosed in double-quotes ("") have their literal value preserved,
 158  * with the exception of the backslash. The backslash retains its special
 159  * meaning as an escape character only when followed by a double-quote.
 160  * Contrarily to the behavior of a posix shell, the double-quotes themselves
 161  * are *not* eliminated. Thus, for example:
 162  *    "\\"   ->  "\\"
 163  *    "\a"   ->  "\a"
 164  *    "a\"b" ->  "a"""b"
 165  */
 166 string const parsecmd(string const & incmd, string & infile, string & outfile,
 167                      string & errfile)
 168 {
 169         bool in_single_quote = false;
 170         bool in_double_quote = false;
 171         bool escaped = false;
 172         string const python_call = os::python();
 173         vector<string> outcmd(4);
 174         size_t start = 0;
 175
 176         if (prefixIs(incmd, python_call)) {
 177                 outcmd[0] = os::python();
 178                 start = python_call.length();
 179         }
 180
 181         for (size_t i = start, o = 0; i < incmd.length(); ++i) {
 182                 char c = incmd[i];
 183                 if (c == '\'') {
 184                         if (in_double_quote || escaped) {
 185                                 if (in_double_quote && escaped)
 186                                         outcmd[o] += '\\';
 187                                 outcmd[o] += c;
 188                         } else
 189                                 in_single_quote = !in_single_quote;
 190                         escaped = false;
 191                         continue;
 192                 }
 193                 if (in_single_quote) {
 194                         outcmd[o] += c;
 195                         continue;
 196                 }
 197                 if (c == '"') {
 198                         if (escaped) {
 199                                 // Don't triple double-quotes for redirection
 200                                 // files as these won't be parsed by QProcess
 201                                 outcmd[o] += string(o ? "\"" : "\"\"\"");
 202                                 escaped = false;
 203                         } else {
 204                                 outcmd[o] += c;
 205                                 in_double_quote = !in_double_quote;
 206                         }
 207                 } else if (c == '\\' && !escaped) {
 208                         escaped = true;
 209                 } else if (c == '>' && !(in_double_quote || escaped)) {
 210                         if (suffixIs(outcmd[o], " 2")) {
 211                                 outcmd[o] = rtrim(outcmd[o], "2");
 212                                 o = 2;
 213                         } else {
 214                                 if (suffixIs(outcmd[o], " 1"))
 215                                         outcmd[o] = rtrim(outcmd[o], "1");
 216                                 o = 1;
 217                         }
 218                 } else if (c == '<' && !(in_double_quote || escaped)) {
 219                         o = 3;
 220 #if defined (USE_MACOSX_PACKAGING)
 221                 } else if (o == 0 && i > 4 && c == ' ' && !(in_double_quote || escaped)) {
 222                         // if a macOS app is detected with an additional argument
 223                         // use open command as prefix to get it work
 224                         const size_t apos = outcmd[o].rfind(".app");
 225                         const size_t len = outcmd[o].length();
 226                         const bool quoted = outcmd[o].at(len - 1) == '"' && outcmd[o].at(0) == '"';
 227                         const string & ocmd = "open -a ";
 228                         if (apos != string::npos &&
 229                                 (apos == (len - 4) || (apos == (len - 5) && quoted)) &&
 230                                 !prefixIs(trim(outcmd[o]), ocmd)) {
 231                                 outcmd[o] = ocmd + outcmd[o];
 232                         }
 233                         outcmd[o] += c;
 234 #endif
 235                 } else {
 236                         if (escaped && in_double_quote)
 237                                 outcmd[o] += '\\';
 238                         outcmd[o] += c;
 239                         escaped = false;
 240                 }
 241         }
 242         infile  = trim(outcmd[3], " \"");
 243         outfile = trim(outcmd[1], " \"");
 244         errfile = trim(outcmd[2], " \"");
 245         return trim(outcmd[0]);
 246 }
 247
 248 } // namespace
 249
 250
 251 void Systemcall::killscript()
 252 {
 253         SystemcallPrivate::kill_script = true;
 254 }
 255
 256
 257 int Systemcall::startscript(Starttype how, string const & what,
 258                             string const & path, string const & lpath,
 259                             bool process_events)
 260 {
 261         string const what_ss = commandPrep(what);
 262         if (verbose)
 263                 lyxerr << "\nRunning: " << what_ss << endl;
 264         else
 265                 LYXERR(Debug::INFO,"Running: " << what_ss);
 266
 267         string infile;
 268         string outfile;
 269         string errfile;
 270         QString const cmd = QString::fromLocal8Bit(
 271                         parsecmd(what_ss, infile, outfile, errfile).c_str());
 272
 273         SystemcallPrivate d(infile, outfile, errfile);
 274         bool do_events = process_events || how == WaitLoop;
 275
 276         d.startProcess(cmd, path, lpath, how == DontWait);
 277         if (how == DontWait && d.state == SystemcallPrivate::Running)
 278                 return OK;
 279
 280         if (d.state == SystemcallPrivate::Error
 281                         || !d.waitWhile(SystemcallPrivate::Starting, do_events, -1)) {
 282                 if (d.state == SystemcallPrivate::Error) {
 283                         LYXERR0("Systemcall: '" << cmd << "' did not start!");
 284                         LYXERR0("error " << d.errorMessage());
 285                         return NOSTART;
 286                 } else if (d.state == SystemcallPrivate::Killed) {
 287                         LYXERR0("Killed: " << cmd);
 288                         return KILLED;
 289                 }
 290         }
 291
 292         if (!d.waitWhile(SystemcallPrivate::Running, do_events,
 293                          os::timeout_ms())) {
 294                 if (d.state == SystemcallPrivate::Killed) {
 295                         LYXERR0("Killed: " << cmd);
 296                         return KILLED;
 297                 }
 298                 LYXERR0("Systemcall: '" << cmd << "' did not finish!");
 299                 LYXERR0("error " << d.errorMessage());
 300                 LYXERR0("status " << d.exitStatusMessage());
 301                 return TIMEOUT;
 302         }
 303
 304         int const exit_code = d.exitCode();
 305         if (exit_code) {
 306                 LYXERR0("Systemcall: '" << cmd << "' finished with exit code " << exit_code);
 307         }
 308
 309         return exit_code;
 310 }
 311
 312
 313 bool SystemcallPrivate::kill_script = false;
 314
 315
 316 SystemcallPrivate::SystemcallPrivate(std::string const & sf, std::string const & of,
 317                                      std::string const & ef)
 318         : state(Error), process_(new QProcess), out_index_(0), err_index_(0),
 319           in_file_(sf), out_file_(of), err_file_(ef), process_events_(false)
 320 {
 321         if (!in_file_.empty())
 322                 process_->setStandardInputFile(QString::fromLocal8Bit(in_file_.c_str()));
 323         if (!out_file_.empty()) {
 324                 if (out_file_[0] == '&') {
 325                         if (subst(out_file_, " ", "") == "&2"
 326                             && err_file_[0] != '&') {
 327                                 out_file_ = err_file_;
 328                                 process_->setProcessChannelMode(
 329                                                 QProcess::MergedChannels);
 330                         } else {
 331                                 if (err_file_[0] == '&') {
 332                                         // Leave alone things such as
 333                                         // "1>&2 2>&1". Should not be harmful,
 334                                         // but let's give anyway a warning.
 335                                         LYXERR0("Unsupported stdout/stderr redirect.");
 336                                         err_file_.erase();
 337                                 } else {
 338                                         LYXERR0("Ambiguous stdout redirect: "
 339                                                 << out_file_);
 340                                 }
 341                                 out_file_ = os::nulldev();
 342                         }
 343                 }
 344                 // Check whether we have to set the output file.
 345                 if (out_file_ != os::nulldev()) {
 346                         process_->setStandardOutputFile(QString::fromLocal8Bit(
 347                                                         out_file_.c_str()));
 348                 }
 349         }
 350         if (!err_file_.empty()) {
 351                 if (err_file_[0] == '&') {
 352                         if (subst(err_file_, " ", "") == "&1"
 353                             && out_file_[0] != '&') {
 354                                 process_->setProcessChannelMode(
 355                                                 QProcess::MergedChannels);
 356                         } else {
 357                                 LYXERR0("Ambiguous stderr redirect: "
 358                                         << err_file_);
 359                         }
 360                         // In MergedChannels mode stderr goes to stdout.
 361                         err_file_ = os::nulldev();
 362                 }
 363                 // Check whether we have to set the error file.
 364                 if (err_file_ != os::nulldev()) {
 365                         process_->setStandardErrorFile(QString::fromLocal8Bit(
 366                                                         err_file_.c_str()));
 367                 }
 368         }
 369
 370         connect(process_, SIGNAL(readyReadStandardOutput()), SLOT(stdOut()));
 371         connect(process_, SIGNAL(readyReadStandardError()), SLOT(stdErr()));
 372 #if QT_VERSION >= 0x050600
 373         connect(process_, SIGNAL(errorOccurred(QProcess::ProcessError)), SLOT(processError(QProcess::ProcessError)));
 374 #else
 375         connect(process_, SIGNAL(error(QProcess::ProcessError)), SLOT(processError(QProcess::ProcessError)));
 376 #endif
 377         connect(process_, SIGNAL(started()), this, SLOT(processStarted()));
 378         connect(process_, SIGNAL(finished(int, QProcess::ExitStatus)), SLOT(processFinished(int, QProcess::ExitStatus)));
 379 }
 380
 381
 382 void SystemcallPrivate::startProcess(QString const & cmd, string const & path,
 383                                      string const & lpath, bool detached)
 384 {
 385         cmd_ = cmd;
 386 #if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
 387         // FIXME pass command and arguments separated in the first place
 388         /* The versions of startDetached() and start() that accept a
 389          * QStringList object exist since Qt4, but it is only in Qt 5.15
 390          * that splitCommand() was introduced and the plain versions of
 391          * start/startDetached() have been deprecated.
 392          * The cleanest solution would be to have parsecmd() produce a
 393          * QStringList for arguments, instead of transforming the string
 394          * into something that the QProcess splitter accepts.
 395          *
 396          * Another reason for doing that is that the Qt parser ignores
 397          * empty "" arguments, which are needed in some instances (see
 398          * e.g. the work around for modules in Converter:convert. See
 399          * QTBUG-80640 for a discussion.
 400         */
 401         QStringList arguments = QProcess::splitCommand(toqstr(latexEnvCmdPrefix(path, lpath)) + cmd_);
 402         QString command = (arguments.empty()) ? QString() : arguments.first();
 403         if (arguments.size() == 1)
 404                 arguments.clear();
 405         else if (!arguments.empty())
 406                 arguments.removeFirst();
 407 #endif
 408         if (detached) {
 409                 state = SystemcallPrivate::Running;
 410 #ifdef Q_OS_WIN32
 411                 // Avoid opening a console window when a viewer is started
 412                 if (in_file_.empty())
 413                         process_->setStandardInputFile(QProcess::nullDevice());
 414                 if (out_file_.empty())
 415                         process_->setStandardOutputFile(QProcess::nullDevice());
 416                 if (err_file_.empty())
 417                         process_->setStandardErrorFile(QProcess::nullDevice());
 418 #endif
 419 #if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
 420                 if (!QProcess::startDetached(command, arguments)) {
 421 #else
 422                 if (!QProcess::startDetached(toqstr(latexEnvCmdPrefix(path, lpath)) + cmd_)) {
 423 #endif
 424                         state = SystemcallPrivate::Error;
 425                         return;
 426                 }
 427                 QProcess* released = releaseProcess();
 428                 delete released;
 429         } else if (process_) {
 430                 state = SystemcallPrivate::Starting;
 431 #if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
 432                 process_->start(command, arguments);
 433 #else
 434                 process_->start(toqstr(latexEnvCmdPrefix(path, lpath)) + cmd_);
 435 #endif
 436         }
 437 }
 438
 439
 440 bool SystemcallPrivate::waitAndCheck()
 441 {
 442         Sleep::millisec(100);
 443         if (kill_script) {
 444                 // is there a better place to reset this?
 445                 process_->kill();
 446                 state = Killed;
 447                 kill_script = false;
 448                 LYXERR0("Export Canceled!!");
 449                 return false;
 450         }
 451         QCoreApplication::processEvents(/*QEventLoop::ExcludeUserInputEvents*/);
 452         return true;
 453 }
 454
 455
 456 namespace {
 457
 458 bool queryStopCommand(QString const & cmd)
 459 {
 460         docstring text = bformat(_(
 461                 "The command\n%1$s\nhas not yet completed.\n\n"
 462                 "Do you want to stop it?"), qstring_to_ucs4(cmd));
 463         return ProgressInterface::instance()->prompt(_("Stop command?"), text,
 464                         1, 1, _("&Stop it"), _("Let it &run")) == 0;
 465 }
 466
 467 } // namespace
 468
 469
 470 bool SystemcallPrivate::waitWhile(State waitwhile, bool process_events, int timeout)
 471 {
 472         if (!process_)
 473                 return false;
 474
 475         bool timedout = false;
 476         process_events_ = process_events;
 477
 478         // Block GUI while waiting,
 479         // relay on QProcess' wait functions
 480         if (!process_events_) {
 481                 if (waitwhile == Starting)
 482                         return process_->waitForStarted(timeout);
 483                 if (waitwhile == Running) {
 484                         int bump = 2;
 485                         while (!timedout) {
 486                                 if (process_->waitForFinished(timeout))
 487                                         return true;
 488                                 bool const stop = queryStopCommand(cmd_);
 489                                 // The command may have finished in the meantime
 490                                 if (process_->state() == QProcess::NotRunning)
 491                                         return true;
 492                                 if (stop) {
 493                                         timedout = true;
 494                                         process_->kill();
 495                                 } else {
 496                                         timeout *= bump;
 497                                         bump = 3;
 498                                 }
 499                         }
 500                 }
 501                 return false;
 502         }
 503
 504         // process events while waiting, no timeout
 505         if (timeout == -1) {
 506                 while (state == waitwhile && state != Error) {
 507                         // check for cancellation of background process
 508                         if (!waitAndCheck())
 509                                 return false;
 510                 }
 511                 return state != Error;
 512         }
 513
 514         // process events while waiting with timeout
 515         QElapsedTimer timer;
 516         timer.start();
 517         while (state == waitwhile && state != Error && !timedout) {
 518                 // check for cancellation of background process
 519                 if (!waitAndCheck())
 520                         return false;
 521
 522                 if (timer.elapsed() > timeout) {
 523                         bool const stop = queryStopCommand(cmd_);
 524                         // The command may have finished in the meantime
 525                         if (process_->state() == QProcess::NotRunning)
 526                                 break;
 527                         if (stop) {
 528                                 timedout = true;
 529                                 process_->kill();
 530                         } else
 531                                 timeout *= 3;
 532                 }
 533         }
 534         return (state != Error) && !timedout;
 535 }
 536
 537
 538 SystemcallPrivate::~SystemcallPrivate()
 539 {
 540         if (out_index_) {
 541                 out_data_[out_index_] = '\0';
 542                 out_index_ = 0;
 543                 cout << out_data_;
 544         }
 545         cout.flush();
 546         if (err_index_) {
 547                 err_data_[err_index_] = '\0';
 548                 err_index_ = 0;
 549                 cerr << err_data_;
 550         }
 551         cerr.flush();
 552
 553         killProcess();
 554 }
 555
 556
 557 void SystemcallPrivate::stdOut()
 558 {
 559         if (process_) {
 560                 char c;
 561                 process_->setReadChannel(QProcess::StandardOutput);
 562                 while (process_->getChar(&c)) {
 563                         out_data_[out_index_++] = c;
 564                         if (c == '\n' || out_index_ + 1 == buffer_size_) {
 565                                 out_data_[out_index_] = '\0';
 566                                 out_index_ = 0;
 567                                 ProgressInterface::instance()->appendMessage(QString::fromLocal8Bit(out_data_));
 568                                 cout << out_data_;
 569                         }
 570                 }
 571         }
 572 }
 573
 574
 575 void SystemcallPrivate::stdErr()
 576 {
 577         if (process_) {
 578                 char c;
 579                 process_->setReadChannel(QProcess::StandardError);
 580                 while (process_->getChar(&c)) {
 581                         err_data_[err_index_++] = c;
 582                         if (c == '\n' || err_index_ + 1 == buffer_size_) {
 583                                 err_data_[err_index_] = '\0';
 584                                 err_index_ = 0;
 585                                 ProgressInterface::instance()->appendError(QString::fromLocal8Bit(err_data_));
 586                                 cerr << err_data_;
 587                         }
 588                 }
 589         }
 590 }
 591
 592
 593 void SystemcallPrivate::processStarted()
 594 {
 595         if (state != Running) {
 596                 state = Running;
 597                 ProgressInterface::instance()->processStarted(cmd_);
 598         }
 599 }
 600
 601
 602 void SystemcallPrivate::processFinished(int, QProcess::ExitStatus)
 603 {
 604         if (state != Finished) {
 605                 state = Finished;
 606                 ProgressInterface::instance()->processFinished(cmd_);
 607         }
 608 }
 609
 610
 611 void SystemcallPrivate::processError(QProcess::ProcessError)
 612 {
 613         state = Error;
 614         ProgressInterface::instance()->appendError(errorMessage());
 615 }
 616
 617
 618 QString SystemcallPrivate::errorMessage() const
 619 {
 620         if (!process_)
 621                 return "No QProcess available";
 622
 623         QString message;
 624         switch (process_->error()) {
 625                 case QProcess::FailedToStart:
 626                         message = "The process failed to start. Either the invoked program is missing, "
 627                                       "or you may have insufficient permissions to invoke the program.";
 628                         break;
 629                 case QProcess::Crashed:
 630                         message = "The process crashed some time after starting successfully.";
 631                         break;
 632                 case QProcess::Timedout:
 633                         message = "The process timed out. It might be restarted automatically.";
 634                         break;
 635                 case QProcess::WriteError:
 636                         message = "An error occurred when attempting to write to the process-> For example, "
 637                                       "the process may not be running, or it may have closed its input channel.";
 638                         break;
 639                 case QProcess::ReadError:
 640                         message = "An error occurred when attempting to read from the process-> For example, "
 641                                       "the process may not be running.";
 642                         break;
 643                 case QProcess::UnknownError:
 644                 default:
 645                         message = "An unknown error occurred.";
 646                         break;
 647         }
 648         return message;
 649 }
 650
 651
 652 QString SystemcallPrivate::exitStatusMessage() const
 653 {
 654         if (!process_)
 655                 return "No QProcess available";
 656
 657         QString message;
 658         switch (process_->exitStatus()) {
 659                 case QProcess::NormalExit:
 660                         message = "The process exited normally.";
 661                         break;
 662                 case QProcess::CrashExit:
 663                         message = "The process crashed.";
 664                         break;
 665                 default:
 666                         message = "Unknown exit state.";
 667                         break;
 668         }
 669         return message;
 670 }
 671
 672
 673 int SystemcallPrivate::exitCode()
 674 {
 675         // From Qt's documentation, in regards to QProcess::exitCode(),
 676         // "This value is not valid unless exitStatus() returns NormalExit"
 677         if (!process_ || process_->exitStatus() != QProcess::NormalExit)
 678                 return -1;
 679
 680         return process_->exitCode();
 681 }
 682
 683
 684 QProcess* SystemcallPrivate::releaseProcess()
 685 {
 686         QProcess* released = process_;
 687         process_ = nullptr;
 688         return released;
 689 }
 690
 691
 692 void SystemcallPrivate::killProcess()
 693 {
 694         killProcess(process_);
 695 }
 696
 697
 698 void SystemcallPrivate::killProcess(QProcess * p)
 699 {
 700         if (p) {
 701                 p->disconnect();
 702                 p->closeReadChannel(QProcess::StandardOutput);
 703                 p->closeReadChannel(QProcess::StandardError);
 704                 p->close();
 705                 delete p;
 706         }
 707 }
 708
 709
 710
 711 #include "moc_SystemcallPrivate.cpp"
 712 #endif
 713
 714 } // namespace support
 715 } // namespace lyx