/// ------------------------------------------------------------------------------------
public static bool Generate(TierCollection tierCollection, Control parentControlForDialog,
bool justClearFileContents)
{
var timeTier = tierCollection.GetTimeTier();
if (!CanGenerate(timeTier))
{
return(false);
}
try
{
Program.SuspendBackgroundProcesses();
if (justClearFileContents)
{
var oralAnnotationFile = timeTier.MediaFileName +
Settings.Default.OralAnnotationGeneratedFileSuffix;
// SP-699: The process cannot access the file because it is being used by another process
if (File.Exists(oralAnnotationFile))
{
FileSystemUtils.WaitForFileRelease(oralAnnotationFile);
}
File.Create(oralAnnotationFile).Dispose();
return(false);
}
Analytics.Track("Generating Oral Annotation File");
using (var generator = new OralAnnotationFileGenerator(timeTier,
tierCollection.GetIsSegmentIgnored, parentControlForDialog))
using (var dlg = new LoadingDlg(GetGeneratingMsg()))
{
dlg.GenericErrorMessage = GetGenericErrorMsg();
var worker = new BackgroundWorker();
worker.DoWork += generator.CreateInterleavedAudioFile;
worker.WorkerSupportsCancellation = true;
dlg.BackgroundWorker = worker;
dlg.Show(parentControlForDialog);
return(dlg.DialogResult == DialogResult.OK);
}
}
catch (Exception error)
{
ErrorReport.NotifyUserOfProblem(error, GetGenericErrorMsg());
return(false);
}
finally
{
Program.ResumeBackgroundProcesses(true);
}
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// First, we try to get the mutex quickly and quietly. If that fails and this request
/// was an explicit user choice (as opposed to merely opening the last project), we put
/// up a dialog and wait 10 seconds, while we wait for the mutex to come free.
/// </summary>
/// ------------------------------------------------------------------------------------
private static bool ObtainTokenForThisProject(string pathToSayMoreProjectFile)
{
ReleaseMutexForThisProject(); // Just to be sure.
Guard.AgainstNull(pathToSayMoreProjectFile, "pathToSayMoreProjectFile");
var mutexIdBldr = new StringBuilder(pathToSayMoreProjectFile);
for (int i = 0; i < mutexIdBldr.Length; i++)
{
if (mutexIdBldr[i] == Path.DirectorySeparatorChar || mutexIdBldr[i] == Path.VolumeSeparatorChar)
{
mutexIdBldr[i] = '-';
}
}
_mutexId = mutexIdBldr.ToString();
try
{
_oneInstancePerProjectMutex = Mutex.OpenExisting(_mutexId);
if (_oneInstancePerProjectMutex.WaitOne(1500, false))
{
return(true);
}
}
catch (Exception e)
{
if (e is WaitHandleCannotBeOpenedException || e is AbandonedMutexException)
{
bool thisThreadGrantedOwnership;
_oneInstancePerProjectMutex = new Mutex(true, _mutexId, out thisThreadGrantedOwnership);
if (thisThreadGrantedOwnership)
{
return(true);
}
}
else
{
throw;
}
}
if (Application.MessageLoop)
{
using (var dlg = new LoadingDlg(LocalizationManager.GetString("MainWindow.WaitingForOtherSayMoreInstance",
"Waiting for other instance of SayMore to finish...")))
{
var worker = new BackgroundWorker();
worker.DoWork += WaitForProjectMutex;
worker.WorkerSupportsCancellation = true;
dlg.BackgroundWorker = worker;
dlg.Show(null);
if (dlg.DialogResult == DialogResult.OK)
{
return(true);
}
}
ErrorReport.NotifyUserOfProblem(Format(
LocalizationManager.GetString("MainWindow.ProjectOpenInOtherSayMore",
"Another instance of SayMore is already open with this project:\r\n{0}\r\n\r\nIf you cannot find that instance of SayMore, restart your computer."),
pathToSayMoreProjectFile));
}
_oneInstancePerProjectMutex = null;
return(false);
}