#include "support/ProgressInterface.h"
#include "LyX.h"
-#include "LyXRC.h"
#include <cstdlib>
#include <iostream>
#include <QProcess>
-#include <QTime>
+#include <QElapsedTimer>
#include <QThread>
#include <QCoreApplication>
#include <QDebug>
struct Sleep : QThread
{
- static void millisec(unsigned long ms)
+ static void millisec(unsigned long ms)
{
QThread::usleep(ms * 1000);
}
namespace support {
-class ProgressDummy : public ProgressInterface
+class ProgressDummy : public ProgressInterface
{
public:
ProgressDummy() {}
};
-static ProgressInterface * progress_instance = 0;
+static ProgressInterface * progress_instance = nullptr;
void ProgressInterface::setInstance(ProgressInterface* p)
{
in_double_quote = !in_double_quote;
}
} else if (c == '\\' && !escaped) {
- escaped = !escaped;
+ escaped = true;
} else if (c == '>' && !(in_double_quote || escaped)) {
if (suffixIs(outcmd[o], " 2")) {
outcmd[o] = rtrim(outcmd[o], "2");
return trim(outcmd[0]);
}
-} // namespace anon
+} // namespace
+void Systemcall::killscript()
+{
+ SystemcallPrivate::kill_script = true;
+}
+
int Systemcall::startscript(Starttype how, string const & what,
string const & path, string const & lpath,
parsecmd(what_ss, infile, outfile, errfile).c_str());
SystemcallPrivate d(infile, outfile, errfile);
+ bool do_events = process_events || how == WaitLoop;
-#ifdef Q_OS_WIN32
- // QProcess::startDetached cannot provide environment variables. When the
- // environment variables are set using the latexEnvCmdPrefix and the process
- // is started with QProcess::startDetached, a console window is shown every
- // time a viewer is started. To avoid this, we fall back on Windows to the
- // original implementation that creates a QProcess object.
- d.startProcess(cmd, path, lpath, false);
- if (!d.waitWhile(SystemcallPrivate::Starting, process_events, -1)) {
- LYXERR0("Systemcall: '" << cmd << "' did not start!");
- LYXERR0("error " << d.errorMessage());
- return 10;
- }
- if (how == DontWait) {
- d.releaseProcess();
- return 0;
- }
-#else
d.startProcess(cmd, path, lpath, how == DontWait);
if (how == DontWait && d.state == SystemcallPrivate::Running)
- return 0;
+ return OK;
if (d.state == SystemcallPrivate::Error
- || !d.waitWhile(SystemcallPrivate::Starting, process_events, -1)) {
- LYXERR0("Systemcall: '" << cmd << "' did not start!");
- LYXERR0("error " << d.errorMessage());
- return 10;
+ || !d.waitWhile(SystemcallPrivate::Starting, do_events, -1)) {
+ if (d.state == SystemcallPrivate::Error) {
+ LYXERR0("Systemcall: '" << cmd << "' did not start!");
+ LYXERR0("error " << d.errorMessage());
+ return NOSTART;
+ } else if (d.state == SystemcallPrivate::Killed) {
+ LYXERR0("Killed: " << cmd);
+ return KILLED;
+ }
}
-#endif
- if (!d.waitWhile(SystemcallPrivate::Running, process_events,
+ if (!d.waitWhile(SystemcallPrivate::Running, do_events,
os::timeout_min() * 60 * 1000)) {
+ if (d.state == SystemcallPrivate::Killed) {
+ LYXERR0("Killed: " << cmd);
+ return KILLED;
+ }
LYXERR0("Systemcall: '" << cmd << "' did not finish!");
LYXERR0("error " << d.errorMessage());
LYXERR0("status " << d.exitStatusMessage());
- return 20;
+ return TIMEOUT;
}
int const exit_code = d.exitCode();
}
+bool SystemcallPrivate::kill_script = false;
+
+
SystemcallPrivate::SystemcallPrivate(std::string const & sf, std::string const & of,
std::string const & ef)
: state(Error), process_(new QProcess), out_index_(0), err_index_(0),
cmd_ = cmd;
if (detached) {
state = SystemcallPrivate::Running;
+#ifdef Q_OS_WIN32
+ // Avoid opening a console window when a viewer is started
+ if (in_file_.empty())
+ process_->setStandardInputFile(QProcess::nullDevice());
+ if (out_file_.empty())
+ process_->setStandardOutputFile(QProcess::nullDevice());
+ if (err_file_.empty())
+ process_->setStandardErrorFile(QProcess::nullDevice());
+#endif
if (!QProcess::startDetached(toqstr(latexEnvCmdPrefix(path, lpath)) + cmd_)) {
state = SystemcallPrivate::Error;
return;
}
-void SystemcallPrivate::processEvents()
-{
- if (process_events_) {
- QCoreApplication::processEvents(/*QEventLoop::ExcludeUserInputEvents*/);
- }
-}
-
-
-void SystemcallPrivate::waitAndProcessEvents()
+bool SystemcallPrivate::waitAndCheck()
{
Sleep::millisec(100);
- processEvents();
+ if (kill_script) {
+ // is there a better place to reset this?
+ process_->kill();
+ state = Killed;
+ kill_script = false;
+ LYXERR0("Export Canceled!!");
+ return false;
+ }
+ QCoreApplication::processEvents(/*QEventLoop::ExcludeUserInputEvents*/);
+ return true;
}
1, 1, _("&Stop it"), _("Let it &run")) == 0;
}
-}
+} // namespace
bool SystemcallPrivate::waitWhile(State waitwhile, bool process_events, int timeout)
while (!timedout) {
if (process_->waitForFinished(timeout))
return true;
- bool stop = queryStopCommand(cmd_);
+ bool const stop = queryStopCommand(cmd_);
// The command may have finished in the meantime
if (process_->state() == QProcess::NotRunning)
return true;
// process events while waiting, no timeout
if (timeout == -1) {
while (state == waitwhile && state != Error) {
- waitAndProcessEvents();
+ // check for cancellation of background process
+ if (!waitAndCheck())
+ return false;
}
return state != Error;
- }
+ }
// process events while waiting with timeout
- QTime timer;
+ QElapsedTimer timer;
timer.start();
while (state == waitwhile && state != Error && !timedout) {
- waitAndProcessEvents();
+ // check for cancellation of background process
+ if (!waitAndCheck())
+ return false;
+
if (timer.elapsed() > timeout) {
- bool stop = queryStopCommand(cmd_);
+ bool const stop = queryStopCommand(cmd_);
// The command may have finished in the meantime
if (process_->state() == QProcess::NotRunning)
break;
}
-QString SystemcallPrivate::errorMessage() const
+QString SystemcallPrivate::errorMessage() const
{
if (!process_)
return "No QProcess available";
QProcess* SystemcallPrivate::releaseProcess()
{
QProcess* released = process_;
- process_ = 0;
+ process_ = nullptr;
return released;
}
projects / lyx.git / blobdiff