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-rw-r--r--REORG.TODO/hurd/hurdpid.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/REORG.TODO/hurd/hurdpid.c b/REORG.TODO/hurd/hurdpid.c
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+++ b/REORG.TODO/hurd/hurdpid.c
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+/* Copyright (C) 1991-2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <hurd.h>
+pid_t _hurd_pid, _hurd_ppid, _hurd_pgrp;
+int _hurd_orphaned;
+
+static void
+init_pids (void)
+{
+ __USEPORT (PROC,
+ ({
+ __proc_getpids (port, &_hurd_pid, &_hurd_ppid, &_hurd_orphaned);
+ __proc_getpgrp (port, _hurd_pid, &_hurd_pgrp);
+ }));
+
+ (void) &init_pids; /* Avoid "defined but not used" warning. */
+}
+
+text_set_element (_hurd_proc_subinit, init_pids);
+
+#include <hurd/msg_server.h>
+#include "set-hooks.h"
+#include <cthreads.h>
+
+DEFINE_HOOK (_hurd_pgrp_changed_hook, (pid_t));
+
+/* These let user threads synchronize with an operation which changes ids. */
+unsigned int _hurd_pids_changed_stamp;
+struct condition _hurd_pids_changed_sync;
+
+kern_return_t
+_S_msg_proc_newids (mach_port_t me,
+ task_t task,
+ pid_t ppid, pid_t pgrp, int orphaned)
+{
+ int pgrp_changed;
+
+ if (task != __mach_task_self ())
+ return EPERM;
+
+ __mach_port_deallocate (__mach_task_self (), task);
+
+ pgrp_changed = pgrp != _hurd_pgrp;
+ _hurd_ppid = ppid;
+ _hurd_pgrp = pgrp;
+ _hurd_orphaned = orphaned;
+
+ if (pgrp_changed)
+ /* Run things that want notification of a pgrp change. */
+ RUN_HOOK (_hurd_pgrp_changed_hook, (pgrp));
+
+ /* Notify any waiting user threads that the id change as been completed. */
+ ++_hurd_pids_changed_stamp;
+
+ return 0;
+}