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authorJustus Winter <4winter@informatik.uni-hamburg.de>2014-11-04 18:46:42 +0100
committerJustus Winter <4winter@informatik.uni-hamburg.de>2014-12-09 09:34:51 +0100
commit8c4d15d5b824fd02bd6909f6d254828732f3bb7b (patch)
treec5d9448587d673d2c211b26c459868e19bc62c5c /include/mach
parent8214da0d2e0e6f01b17c9d1dc1608f0ec3cf3be4 (diff)
kern: provide notifications about new tasks
These notifications are sent to the port registered via `register_new_task_notification' and provide a robust parental relation between tasks to a userspace server. * Makefrag.am: Add task_notify.defs. * include/mach/gnumach.defs: Add register_new_task_notification. * include/mach/task_notify.defs: New file. * kern/task.c (new_task_notification): New variable. (task_create): Send new task notifications. (register_new_task_notification): Add server function. * kern/task_notify.cli: New file.
Diffstat (limited to 'include/mach')
-rw-r--r--include/mach/gnumach.defs8
-rw-r--r--include/mach/task_notify.defs36
2 files changed, 44 insertions, 0 deletions
diff --git a/include/mach/gnumach.defs b/include/mach/gnumach.defs
index 6cfbb0d..bac3b09 100644
--- a/include/mach/gnumach.defs
+++ b/include/mach/gnumach.defs
@@ -72,3 +72,11 @@ simpleroutine thread_terminate_release(
simpleroutine task_set_name(
task : task_t;
name : kernel_debug_name_t);
+
+/*
+ * Register a port to which a notification about newly created tasks
+ * are sent.
+ */
+routine register_new_task_notification(
+ host_priv : host_priv_t;
+ notification : mach_port_send_t);
diff --git a/include/mach/task_notify.defs b/include/mach/task_notify.defs
new file mode 100644
index 0000000..5485d4e
--- /dev/null
+++ b/include/mach/task_notify.defs
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2014 Free Software Foundation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+subsystem
+#if KERNEL_SERVER
+ KernelServer
+#endif /* KERNEL_SERVER */
+#if KERNEL_USER
+ KernelUser
+#endif /* KERNEL_USER */
+ task_notify 4400;
+
+#include <mach/std_types.defs>
+#include <mach/mach_types.defs>
+
+/* These notifications are sent to the port registered via
+ `register_new_task_notification' and provide a robust parental
+ relation between tasks. */
+simpleroutine mach_notify_new_task(
+ notify : mach_port_t;
+ task : task_t;
+ parent : task_t);