| [410] | 1 | /* |
|---|
| [436] | 2 | * sys_thread_cancel.c - terminate execution of an user thread. |
|---|
| [410] | 3 | * |
|---|
| [436] | 4 | * Authors Alain Greiner (2016,2017, 2018) |
|---|
| [410] | 5 | * |
|---|
| [436] | 6 | * Copyright (c) UPMC Sorbonne Universites |
|---|
| [410] | 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_remote.h> |
|---|
| 26 | #include <hal_special.h> |
|---|
| 27 | #include <thread.h> |
|---|
| 28 | #include <errno.h> |
|---|
| 29 | #include <printk.h> |
|---|
| 30 | |
|---|
| 31 | ////////////////////////////////////// |
|---|
| 32 | int sys_thread_cancel( trdid_t trdid ) |
|---|
| 33 | { |
|---|
| 34 | xptr_t target_xp; // target thread extended pointer |
|---|
| 35 | |
|---|
| [436] | 36 | // get killer thread pointers |
|---|
| [410] | 37 | thread_t * this = CURRENT_THREAD; |
|---|
| 38 | process_t * process = this->process; |
|---|
| 39 | |
|---|
| 40 | // get extended pointer on target thread |
|---|
| 41 | target_xp = thread_get_xptr( process->pid , trdid ); |
|---|
| 42 | |
|---|
| [436] | 43 | // check target_xp |
|---|
| [410] | 44 | if( target_xp == XPTR_NULL ) |
|---|
| 45 | { |
|---|
| [436] | 46 | |
|---|
| 47 | #if CONFIG_DEBUG_SYSCALLS_ERROR |
|---|
| 48 | printk("\n[ERROR] in %s : target thread %x not found\n", __FUNCTION__, trdid ); |
|---|
| 49 | #endif |
|---|
| [410] | 50 | this->errno = EINVAL; |
|---|
| 51 | return -1; |
|---|
| 52 | } |
|---|
| 53 | |
|---|
| [436] | 54 | #if CONFIG_DEBUG_SYS_THREAD_CANCEL |
|---|
| 55 | uint64_t tm_start; |
|---|
| 56 | uint64_t tm_end; |
|---|
| 57 | tm_start = hal_get_cycles(); |
|---|
| 58 | if( CONFIG_DEBUG_SYS_THREAD_CANCEL < tm_start ) |
|---|
| 59 | printk("\n[DBG] %s : thread %x enter to kill thread %x / cycle %d\n", |
|---|
| 60 | __FUCTION__, this, GET_PTR( target_xp ), (uint32_t)tm_start ); |
|---|
| 61 | #endif |
|---|
| [410] | 62 | |
|---|
| 63 | // cal the relevant kernel function |
|---|
| [436] | 64 | thread_kill( target_xp, |
|---|
| 65 | 0, // is_exit |
|---|
| 66 | 0 ); // is forced |
|---|
| [410] | 67 | |
|---|
| [436] | 68 | #if CONFIG_DEBUG_SYS_THREAD_CANCEL |
|---|
| [410] | 69 | tm_end = hal_get_cycles(); |
|---|
| [436] | 70 | if( CONFIG_DEBUG_SYS_THREAD_CANCEL < tm_end ) |
|---|
| 71 | printk("\n[DBG] %s : thread %x exit after kill thread %x / cycle %d\n", |
|---|
| 72 | __FUCTION__, this, GET_PTR( target_xp ), (uint32_t)tm_end ); |
|---|
| [410] | 73 | #endif |
|---|
| 74 | |
|---|
| 75 | return 0; |
|---|
| 76 | |
|---|
| 77 | } // end sys_thread_cancel() |
|---|
