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/* Wakeup a thread. L4 version.
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 <l4.h>
#include <pt-internal.h>
#include <hurd/stddef.h>
/* Wakeup THREAD. */
void
__pthread_wakeup (struct __pthread *thread)
{
debug (5, "%x.%x/%x waking %x.%x/%x",
l4_thread_no (l4_myself ()), l4_version (l4_myself ()), l4_myself (),
l4_thread_no (thread->threadid), l4_version (thread->threadid),
thread->threadid);
/* Signal the waiter. */
l4_msg_t msg;
l4_msg_clear (msg);
l4_msg_set_untyped_words (msg, 0);
l4_msg_load (msg);
l4_msg_tag_t tag = l4_send (thread->threadid);
if (l4_ipc_failed (tag))
{
int err = l4_error_code ();
debug (1, "%x.%x failed to wake %x.%x: %s (%d)",
l4_thread_no (l4_myself ()), l4_version (l4_myself ()),
l4_thread_no (thread->threadid), l4_version (thread->threadid),
l4_strerror (err), err);
}
else
debug (5, "%x.%x woke %x.%x",
l4_thread_no (l4_myself ()), l4_version (l4_myself ()),
l4_thread_no (thread->threadid), l4_version (thread->threadid));
}
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