public static bool HasExitedSafe([NotNull] this Process process)
{
if (process == null)
{
throw new ArgumentNullException(nameof(process));
}
var handle = Kernel32.OpenProcess(Kernel32.ProcessAccessFlags.QueryLimitedInformation | Kernel32.ProcessAccessFlags.Synchronize, false, process.Id);
if (handle == IntPtr.Zero || handle == new IntPtr(-1))
{
return(true);
}
try {
if (Kernel32.GetExitCodeProcess(handle, out var exitCode) && exitCode != Kernel32.STILL_ACTIVE)
{
return(true);
}
using (var w = new ProcessWrapper.ProcessWaitHandle(handle)) {
return(w.WaitOne(0, false));
}
} finally {
Kernel32.CloseHandle(handle);
}
}
private static async Task WaitForExitAsyncFallback([NotNull] Process process, CancellationToken cancellationToken = default(CancellationToken))
{
if (process == null)
{
throw new ArgumentNullException(nameof(process));
}
var handle = Kernel32.OpenProcess(Kernel32.ProcessAccessFlags.QueryLimitedInformation | Kernel32.ProcessAccessFlags.Synchronize, false, process.Id);
if (handle == IntPtr.Zero || handle == new IntPtr(-1))
{
await WaitForExitAsyncDeeperFallback(process, cancellationToken);
return;
}
try {
if (Kernel32.GetExitCodeProcess(handle, out var exitCode) && exitCode != Kernel32.STILL_ACTIVE)
{
return;
}
using (var w = new ProcessWrapper.ProcessWaitHandle(handle)) {
TypoLogging.Write("Waiting using ProcessWaitHandle…");
while (!w.WaitOne(0, false))
{
await Task.Delay(300, cancellationToken);
if (cancellationToken.IsCancellationRequested)
{
return;
}
}
}
} finally {
Kernel32.CloseHandle(handle);
}
}
