source: trunk/kernel/syscalls/sys_thread_getattr.c @ 1

Last change on this file since 1 was 1, checked in by alain, 5 years ago

First import

File size: 1.4 KB
Line 
1/*
2 * kern/sys_thread_getattr.c - gets current thread's attributes
3 *
4 * Copyright (c) 2008,2009,2010,2011,2012 Ghassan Almaless
5 * Copyright (c) 2011,2012 UPMC Sorbonne Universites
6 *
7 * This file is part of ALMOS-kernel.
8 *
9 * ALMOS-kernel is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; version 2.0 of the License.
12 *
13 * ALMOS-kernel is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with ALMOS-kernel; if not, write to the Free Software Foundation,
20 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23#include <types.h>
24#include <errno.h>
25#include <cpu.h>
26#include <cluster.h>
27#include <thread.h>
28
29int sys_thread_getattr(pthread_attr_t *attr)
30{
31        struct thread_s *this;
32        struct cpu_s *cpu;
33        error_t err;
34
35        this = current_thread;
36        cpu  = current_cpu;
37       
38        if(NOT_IN_USPACE((uint_t)attr))
39        {
40                err = EPERM;
41                goto fail_attr;
42        }
43
44        this->info.attr.cid     = cpu->cluster->id;
45        this->info.attr.cpu_lid = cpu->lid;
46        this->info.attr.cpu_gid = cpu->gid;
47 
48        err = cpu_copy_to_uspace(attr, &this->info.attr,
49                                 sizeof(pthread_attr_t));
50
51fail_attr:
52        this->info.errno = err;
53        return err;
54}
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