/// <summary>
/// Starts an ezstream process for the given channel id
/// </summary>
/// <param name="channelId">Channel id for the channel which should have an ezstram started</param>
private void StartEzstreamProcess(int channelId)
{
_logger.AddEntry("Start starting ezstream process for channel with id: [" + channelId + "]");
if (!IsChannelStreamRunning(channelId)) //Check if the channel already has a running stream
{
//Start set up the process
//Path to ezstream executable
string ezPath = FilePath.ITUEzStreamPath.GetPath();
//Create the arguments to ezstream
string xmlFilePath;
xmlFilePath = FilePath.ITUChannelConfigPath.GetPath() + channelId.ToString() + ".xml";
string arguments = "-c " + xmlFilePath;
//Start set up process-info
ProcessStartInfo startInfo = new ProcessStartInfo("cmd", "/c " + ezPath + " " + arguments);
//Default is true, it should be false for ezstream
startInfo.UseShellExecute = false;
//It should not create a new window for the ezstream process
startInfo.CreateNoWindow = true;
//Create the process for ezstream
EzProcess p = new EzProcess(channelId);
p.StartInfo = startInfo;
_logger.AddEntry("Starting process for channel with id: [" + channelId + "]");
try
{
p.Start();
}
catch (Exception e)
{
_logger.AddEntry("Exception when trying to start ezprocess for channel with id: [" + channelId + "]. EzStream path: [" + ezPath + "] - XmlFilePath: [" + xmlFilePath + "] - Arguments: [" + arguments + "]. Exception: " + e);
throw e;
}
_logger.AddEntry("Process started for channel with id: [" + channelId + "]");
//Start asynchronous assignment of process id to the newly created process
Task t = new Task(() => AssignProcessId(p));
t.Start();
//Add this process to the dictionary with running channels
runningChannelIds.Add(channelId, p);
}
else // Channel already has a running ezstream
{
_logger.AddEntry("Channel with id: [" + channelId + "] is already running");
throw new ChannelRunningException("Channel with id: [" + channelId + "] is already running");
}
}
/// <summary>
/// Sets the RealProcessId property for the given EzProcess
/// This is used because the default EzProcess.id is the id of "cmd" and not the "ezstream" process
/// </summary>
/// <param name="p">Process which should have assigned its RealProcessId property</param>
private void AssignProcessId(EzProcess p)
{
_logger.AddEntry("Start assign process id for channel with id: [" + p.ChannelId + "]");
Thread.Sleep(1000);
_logger.AddEntry("Sleep has finished for channel with id: [" + p.ChannelId + "]");
//Loop through all windows processes names "ezstream"
bool sucess = false;
foreach (Process process in Process.GetProcessesByName("ezstream"))
{
if (!ezstreamProcessIds.Contains(process.Id)) //If the windows process has an id which is not in the list of already running process ids
{
//Set the RealProcessId
p.RealProcessId = process.Id;
//Add the id to the list of running processes ids
ezstreamProcessIds.Add(process.Id);
sucess = true;
_logger.AddEntry("Process for channel with id: [" + p.ChannelId + "] has been assigned process id: [" + p.RealProcessId + "]");
break;
}
}
if (!sucess)
{
_logger.AddEntry("Unable to find process id for channel with id: [" + p.ChannelId + "]");
}
}