| [50] | 1 | /* |
|---|
| 2 | * sys_timeofday.c - Get current time |
|---|
| 3 | * |
|---|
| 4 | * Author Alain Greiner (2016,2017) |
|---|
| 5 | * |
|---|
| 6 | * Copyright (c) UPMC Sorbonne Universites |
|---|
| 7 | * |
|---|
| 8 | * This file is part of ALMOS-MKH. |
|---|
| 9 | * |
|---|
| 10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
|---|
| 11 | * under the terms of the GNU General Public License as published by |
|---|
| 12 | * the Free Software Foundation; version 2.0 of the License. |
|---|
| 13 | * |
|---|
| 14 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
|---|
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|---|
| 17 | * General Public License for more details. |
|---|
| 18 | * |
|---|
| 19 | * You should have received a copy of the GNU General Public License |
|---|
| 20 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
|---|
| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
|---|
| 22 | */ |
|---|
| 23 | |
|---|
| 24 | #include <hal_types.h> |
|---|
| 25 | #include <hal_uspace.h> |
|---|
| 26 | #include <thread.h> |
|---|
| 27 | #include <printk.h> |
|---|
| 28 | #include <errno.h> |
|---|
| 29 | #include <process.h> |
|---|
| 30 | #include <vmm.h> |
|---|
| 31 | #include <core.h> |
|---|
| 32 | #include <time.h> |
|---|
| 33 | |
|---|
| 34 | //////////////////////////////////////// |
|---|
| 35 | int sys_timeofday( struct timeval * tv, |
|---|
| 36 | struct timezone * tz ) |
|---|
| 37 | { |
|---|
| 38 | error_t error; |
|---|
| 39 | paddr_t paddr; |
|---|
| 40 | |
|---|
| 41 | uint32_t tm_s; |
|---|
| 42 | uint32_t tm_us; |
|---|
| 43 | |
|---|
| 44 | struct timeval k_tv; |
|---|
| 45 | |
|---|
| 46 | thread_t * this = CURRENT_THREAD; |
|---|
| 47 | process_t * process = this->process; |
|---|
| 48 | |
|---|
| 49 | // check tz (non supported / must be null) |
|---|
| 50 | if( tz ) |
|---|
| 51 | { |
|---|
| 52 | printk("\n[ERROR] in %s for thread %x in process %x : tz argument must be NULL\n", |
|---|
| 53 | __FUNCTION__ , this->trdid , process->pid ); |
|---|
| 54 | this->errno = EINVAL; |
|---|
| 55 | return -1; |
|---|
| 56 | } |
|---|
| 57 | |
|---|
| 58 | // check tv |
|---|
| 59 | error = vmm_v2p_translate( false , tv , &paddr ); |
|---|
| 60 | |
|---|
| 61 | if( error ) |
|---|
| 62 | { |
|---|
| 63 | printk("\n[ERROR] in %s for thread %x in process %x : tv argument unmapped\n", |
|---|
| 64 | __FUNCTION__ , this->trdid , process->pid ); |
|---|
| 65 | this->errno = EINVAL; |
|---|
| 66 | return -1; |
|---|
| 67 | } |
|---|
| 68 | |
|---|
| 69 | // get time from calling core descriptor |
|---|
| 70 | core_get_time( this->core , &tm_s , &tm_us ); |
|---|
| 71 | k_tv.tv_sec = tm_s; |
|---|
| 72 | k_tv.tv_usec = tm_us; |
|---|
| 73 | |
|---|
| 74 | // copy values to user space |
|---|
| 75 | hal_copy_to_uspace( tv , &k_tv , sizeof(struct timeval) ); |
|---|
| 76 | |
|---|
| 77 | hal_wbflush(); |
|---|
| 78 | |
|---|
| 79 | return 0; |
|---|
| 80 | |
|---|
| 81 | } // end sys_timeofday() |
|---|
