public void DoInstallRemote(PrerequisiteBase prerequisite)
{
this.installStartedEvent.Set();
this.installCompleteEvent.WaitOne();
if (this.installSuccess == false)
{
throw new Exception("FAIL!");
}
}
public void DoInstallRemote(PrerequisiteBase prerequisite)
{
IFormatter Serializer = new BinaryFormatter();
Serializer.Serialize(this.pipeServer, prerequisite);
this.pipeServer.WaitForPipeDrain();
string Result = this.reader.ReadLine();
if (string.IsNullOrEmpty(Result) == false)
{
throw new Exception(Result);
}
}
private static void HandleAdminInstalls(string[] commandLineArgs)
{
NamedPipeClientStream PipeClient = new NamedPipeClientStream(commandLineArgs[0]);
PipeClient.Connect(1000);
if (PipeClient.IsConnected)
{
try
{
using (StreamWriter Writer = new StreamWriter(PipeClient))
{
IFormatter Serializer = new BinaryFormatter();
while (true)
{
PrerequisiteBase Prerequisite = (PrerequisiteBase)Serializer.Deserialize(PipeClient);
try
{
Prerequisite.DoInstall();
Writer.WriteLine(string.Empty);
}
catch (Exception Error)
{
Writer.WriteLine(Error.Message);
}
Writer.Flush();
PipeClient.WaitForPipeDrain();
}
}
}
catch (IOException)
{
//Pipe was closed remotely - nothing left to do. End
}
catch
{
//Oops.. Something went wrong. Just exit, let the caller handle the issue. Must be handled anyway, as the user could also cancel UAC
}
}
else
{
//Oops.. Something went wrong. Just exit, let the caller handle the issue. Must be handled anyway, as the user could also cancel UAC
}
}
private void SetUpSystem()
{
new Task(() =>
{
int PackagesToInstall = this.prerequisites.Length;
int PackagesToDownload = this.prerequisites.Count(_ => _.DownloadId != null);
int PackagesDownloaded = 0;
int PackagesInstalled = 0;
//Set up initial status for download and imnstallation
bool IsAdminRequired = this.prerequisites.Any(_ => _.RequiresAdmin);
bool DownloadsNeeded = PackagesToDownload > 0;
bool MustWaitForDownload = PackagesToInstall == PackagesToDownload;
this.Status = new InstallationStatus(
MustWaitForDownload
? (InstallationStatus.InstallationStatusBase) new InstallationStatus.InstallationWaitingForDownloadStatus()
: new InstallationStatus.InstallingStatus(PackagesToInstall, 0, null),
DownloadsNeeded
? new InstallationStatus.DownloadingStatus(PackagesToDownload, 0, null)
: default(InstallationStatus.DownloadStatusBase));
//Set up queue for installable packages. All packages that do not need to be downloaded are added right now as installation can directly start
Queue <PrerequisiteBase> InstallQueue = new Queue <PrerequisiteBase>();
AutoResetEvent InstallQueueAdded = new AutoResetEvent(false);
this.prerequisites.Where(_ => _.DownloadId == null).ForEach(_ => InstallQueue.Enqueue(_));
//If administrative rights are required,set up client process to delegate those installations to.
if (IsAdminRequired)
{
this.adminProcessConnector.LaunchProcess();
}
//Start download for all packages in parallel
foreach (PrerequisiteBase Prerequisite in this.prerequisites.Where(_ => _.DownloadId != null))
{
this.downloadFunc(
Prerequisite.DownloadId,
(id, progress) =>
{
lock (this.statusLock)
{
this.prerequisites.First(_ => _.DownloadId == id).DownloadProgress = progress;
double OverallProgress = this.prerequisites.Where(_ => _.DownloadId != null).Sum(_ => _.DownloadProgress);
lock (this.statusLock)
{
if (this.Status is InstallationErrorStatus)
{
//Ignore if there is already an error reported. Can happen if multiple downloads are pending and one has a failure
return;
}
}
// Update download status
this.Status = new InstallationStatus(((InstallationStatus)this.Status).Installation, new InstallationStatus.DownloadingStatus(PackagesToDownload, OverallProgress, null));
}
},
id =>
{
//TODO: Handle download errors
lock (this.statusLock)
{
if (this.Status is InstallationErrorStatus)
{
//Ignore if there is already an error reported. Can happen if multiple downloads are pending and one has a failure
return;
}
}
lock (InstallQueue)
{
InstallQueue.Enqueue(this.prerequisites.First(_ => _.DownloadId == id));
InstallQueueAdded.Set();
PackagesDownloaded++;
lock (this.statusLock)
{
if (PackagesToDownload != PackagesDownloaded)
{
// Update download status
this.Status = new InstallationStatus(((InstallationStatus)this.Status).Installation, new InstallationStatus.DownloadingStatus(PackagesToDownload, PackagesDownloaded, null));
}
else
{
// All downloads finished
this.Status = new InstallationStatus(((InstallationStatus)this.Status).Installation, new InstallationStatus.DownloadFinishedStatus());
}
}
}
});
}
//repeat until all prerequisites are installed
while (this.prerequisites.Any(_ => _.WasInstalled == false))
{
PrerequisiteBase Prerequisite = null;
do
{
lock (InstallQueue)
{
if (InstallQueue.Count > 0)
{
Prerequisite = InstallQueue.Dequeue();
}
}
if (Prerequisite == null)
{
lock (this.statusLock)
{
this.Status = new InstallationStatus(
new InstallationStatus.InstallationWaitingForDownloadStatus(),
((InstallationStatus)this.Status).Download
);
}
InstallQueueAdded.WaitOne();
}
} while (Prerequisite == null);
lock (this.statusLock)
{
this.Status = new InstallationStatus(
new InstallationStatus.InstallingStatus(PackagesToInstall, PackagesInstalled, Prerequisite.Name),
((InstallationStatus)this.Status).Download
);
}
try
{
//if needed, run process with admin rights to execute installations
if (Prerequisite.RequiresAdmin)
{
this.adminProcessConnector.DoInstallRemote(Prerequisite);
}
else
{
Prerequisite.DoInstall();
}
Prerequisite.SetInstalled();
}
catch (Exception Error)
{
lock (this.statusLock)
{
this.Status = new InstallationErrorStatus(Error.Message);
}
//TODO: Stop downloads
break;
}
PackagesInstalled++;
lock (this.statusLock)
{
this.Status = new InstallationStatus(
new InstallationStatus.InstallingStatus(PackagesToInstall, PackagesInstalled, Prerequisite.Name),
((InstallationStatus)this.Status).Download
);
}
}
//Installation finished or error occured. Close client program if it was started
this.adminProcessConnector.EndIfStartedAndWaitForExit();
lock (this.statusLock)
{
if (this.Status is InstallationStatus)
{
this.Status = new InstallationSuccessStatus();
}
else
{
//Error status, leave as is
}
}
}).Start();
}
