Method SetSignalAction

src/task/signal.cpp:161–188

}

auto TaskManager::SetSignalAction(int signum, const SignalAction& action,
                                  SignalAction* old_action) -> Expected<void> {
  auto* current = GetCurrentTask();
  if (!current || !current->aux) {
    return std::unexpected(Error{ErrorCode::kTaskNoCurrentTask});
  }

  if (!SignalState::IsValid(signum)) {
    return std::unexpected(Error{ErrorCode::kSignalInvalidNumber});
  }

  if (SignalState::IsUncatchable(signum)) {
    return std::unexpected(Error{ErrorCode::kSignalUncatchable});
  }

  auto& signals = current->aux->signals;

  if (old_action) {
    *old_action = signals.actions[signum];
  }

  signals.actions[signum] = action;

  klog::Debug("SetSignalAction: pid={} set handler for signal {} ({})",
              current->pid, signum, SignalState::GetSignalName(signum));

  return {};
}

auto TaskManager::SetSignalMask(int how, uint32_t set, uint32_t* oldset)
    -> Expected<void> {