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/* task-user.c - User stubs for task RPCs.
Copyright (C) 2004 Free Software Foundation, Inc.
Written by Marcus Brinkmann.
This file is part of the GNU Hurd.
The GNU Hurd 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 Hurd 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdint.h>
#include <l4.h>
#include "task-user.h"
#define HURD_L4_ERROR_LABEL ((uint16_t) INT16_MIN)
/* Allocate a new thread for the task TASK, and return its thread ID
in THREAD_ID. */
error_t
task_thread_alloc (l4_thread_id_t task_server, hurd_cap_handle_t task,
void *utcb, l4_thread_id_t *thread_id)
{
l4_msg_t msg;
l4_msg_tag_t tag;
l4_accept (L4_UNTYPED_WORDS_ACCEPTOR);
l4_msg_clear (msg);
l4_set_msg_label (msg, 512 /* TASK_THREAD_ALLOC */);
l4_msg_append_word (msg, task);
l4_msg_append_word (msg, (l4_word_t) utcb);
l4_msg_load (msg);
tag = l4_call (task_server);
l4_msg_store (tag, msg);
if (l4_msg_label (msg) == HURD_L4_ERROR_LABEL)
return l4_msg_word (msg, 0);
*thread_id = l4_msg_word (msg, 0);
return 0;
}
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