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/* Cancel a thread.
Copyright (C) 2002 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <pthread.h>
#include <pt-internal.h>
static void
call_exit (void)
{
pthread_exit (0);
}
int
__pthread_do_cancel (struct __pthread *p)
{
assert (p->cancel_pending = 1);
assert (p->cancel_state == PTHREAD_CANCEL_ENABLE);
if (L4_SameThreads (L4_Myself (), p->threadid))
call_exit ();
else
{
L4_Word_t dummy;
L4_ThreadId_t dummy_id;
/* Change the ip of the target thread to make it exit. */
L4_ExchangeRegisters (p->threadid, (1 << 4), 0, call_exit,
0, 0, L4_nilthread,
&dummy, &dummy, &dummy, &dummy, &dummy,
&dummy_id);
}
return 0;
}
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