Send SIGTERM and SIGABRT signals to a process group

session_manager_service.cc

 // Copyright (c) 2009-2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "login_manager/session_manager_service.h"
 
 #include <dbus/dbus-glib-lowlevel.h>
 #include <errno.h>
 #include <glib.h>
 #include <grp.h>
@@ skipping 812 matching lines @@
   // And SIGHUP, for when the terminal disappears. On shutdown, many Linux
   // distros send SIGHUP, SIGTERM, and then SIGKILL.
   action.sa_handler = SIGHUPHandler;
   CHECK(sigaction(SIGHUP, &action, NULL) == 0);
 }
 
 void SessionManagerService::CleanupChildren(int timeout) {
   for (size_t i_child = 0; i_child < child_pids_.size(); ++i_child) {
     int child_pid = child_pids_[i_child];
     if (child_pid > 0) {
-      system_->kill(child_pid, (session_started_ ? SIGTERM: SIGKILL));
+      system_->kill(-child_pid, (session_started_ ? SIGTERM : SIGKILL));
       if (!system_->ChildIsGone(child_pid, timeout))
-        system_->kill(child_pid, SIGABRT);
+        system_->kill(-child_pid, SIGABRT);
     }
   }
 }
 
 void SessionManagerService::SetGError(GError** error,
                                       ChromeOSLoginError code,
                                       const char* message) {
   g_set_error(error, CHROMEOS_LOGIN_ERROR, code, "Login error: %s", message);
 }
 
@@ skipping 34 matching lines @@
       arg_list.push_back(args[i_arg]);
     }
   }
   if (arg_list.size()) {
     arg_lists.push_back(arg_list);
   }
   return arg_lists;
 }
 
 }  // namespace login_manager