private void WaitUntilSandboxIsReady(Process sandbox)
{
var readyLineReadTask = sandbox.StandardOutput.ReadLineAsync();
if (readyLineReadTask.Wait(settings.MaintenanceTimeLimit) && readyLineReadTask.Result == "Ready")
{
return;
}
if (!sandbox.HasExited)
{
throw new SandboxException($"Песочница не ответила «Ready» через {settings.MaintenanceTimeLimit.TotalSeconds} секунд после запуска, убиваю её");
}
if (sandbox.ExitCode != 0)
{
log.Warn($"Песочница не ответила «Ready», а вышла с кодом {sandbox.ExitCode}");
var stderrReader = new AsyncReader(sandbox.StandardError, settings.OutputLimit + 1);
var stderrData = stderrReader.GetDataAsync().Result;
log.Warn($"Вывод песочницы в stderr:\n{stderrData}");
var result = GetResultForNonZeroExitCode(stderrData, sandbox.ExitCode);
throw new SandboxException(result.Error);
}
throw new SandboxException("Sandbox unexpectedly exited before respond");
}
private void RunSolutionAndWaitUntilSandboxExit(Process sandbox, out string sandboxOutput, out string sandboxError)
{
sandbox.Refresh();
var startUsedMemory = sandbox.WorkingSet64;
var startUsedTime = sandbox.TotalProcessorTime;
var startTime = DateTime.Now;
sandbox.StandardInput.WriteLine("Run");
sandbox.StandardInput.Flush();
sandbox.StandardInput.WriteLineAsync(submission.Input);
var stderrReader = new AsyncReader(sandbox.StandardError, settings.OutputLimit + 1);
var stdoutReader = new AsyncReader(sandbox.StandardOutput, settings.OutputLimit + 1);
while (!sandbox.HasExited &&
!CheckIsTimeLimitExceeded(sandbox, startTime, startUsedTime) &&
!CheckIsMemoryLimitExceeded(sandbox, startUsedMemory) &&
!CheckIsOutputLimit(stdoutReader) &&
!CheckIsOutputLimit(stderrReader))
{
}
if (!hasTimeLimit && !hasMemoryLimit && !hasOutputLimit)
{
/* Read all data to the end of streams */
sandboxError = stderrReader.GetDataAsync().Result;
sandboxOutput = stdoutReader.GetDataAsync().Result;
hasOutputLimit = CheckIsOutputLimit(stdoutReader);
hasOutputLimit = CheckIsOutputLimit(stderrReader);
}
else
{
sandboxError = "";
sandboxOutput = "";
}
}