static void Wait(int pid)
{
try
{
Process.GetProcessById(pid).WaitForExit();
}
catch (ArgumentException e)
{
Stdio.perror("Can't wait on process: " + e.Message);
}
}
static void Wait(int[] pids)
{
Dictionary <int, Process> toWaitFor = new Dictionary <int, Process>();
// sort through the list, getting actual processes, sending to error
// processes that don't exist, etc.
foreach (int pid in pids)
{
try
{
Process p = Process.GetProcessById(pid);
p.EnableRaisingEvents = true;
toWaitFor.Add(pid, p);
// When the process' exit event triggers, remove it from the list of procs we're waiting on
p.Exited += (object o, EventArgs e) =>
{
if (toWaitFor.ContainsKey(pid))
{
toWaitFor.Remove(pid);
}
};
// Handle potential race condition for when the process finishes after we add it to the
// dict, but before we add the handler.
if (p.HasExited)
{
if (toWaitFor.ContainsKey(pid))
{
toWaitFor.Remove(pid);
}
}
}
catch (ArgumentException e)
{
Stdio.perror("Can't wait on process " + pid + ": " + e.Message);
// Something had gone wrong, make sure we aren't going to be locking
// on a dead process
if (toWaitFor.ContainsKey(pid))
{
toWaitFor.Remove(pid);
}
}
}
// Spinwait until all processes finish and remove themselves from the list
System.Threading.SpinWait.SpinUntil(() => { return(toWaitFor.Count == 0); });
}
static int Unlink(string filename)
{
int retVal = 0;
try
{
File.Delete(filename);
}
catch (Exception e)
{
Stdio.perror("Unable to delete file: " + e.Message);
retVal = -1;
}
return(retVal);
}
static int MkDir(string toMake)
{
int retVal = 0;
try
{
Directory.CreateDirectory(toMake);
}
catch (Exception e)
{
Stdio.perror("Unable to create directory: " + e.Message);
retVal = -1;
}
return(retVal);
}
public static int Cd(string directory)
{
int retval = 0;
try
{
Environment.CurrentDirectory = directory;
}
catch (Exception e)
{
Stdio.perror("Invalid directory:" + e.Message);
retval = 1;
}
return(retval);
}
static int RmDir(string toDelete, bool recursive = false)
{
int retVal = 0;
try
{
Directory.Delete(toDelete, recursive);
}
catch (Exception e)
{
Stdio.perror("Unable to delete directory: " + e.Message);
retVal = -1;
}
return(retVal);
}
