| 1 | /* |
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| 2 | * sys_thread_sleep.c - put the calling thread in sleep state |
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| 3 | * |
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| 4 | * Author Alain Greiner (2016,2017) |
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| 5 | * |
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| 6 | * Copyright (c) UPMC Sorbonne Universites |
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| 7 | * |
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| 8 | * This file is part of ALMOS-MKH. |
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| 9 | * |
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| 10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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| 11 | * under the terms of the GNU General Public License as published by |
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| 12 | * the Free Software Foundation; version 2.0 of the License. |
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| 13 | * |
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| 14 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 17 | * General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
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| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | */ |
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| 23 | |
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| 24 | #include <hal_special.h> |
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| 25 | #include <scheduler.h> |
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| 26 | #include <thread.h> |
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| 27 | #include <printk.h> |
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| 28 | #include <syscalls.h> |
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| 29 | |
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| 30 | ////////////////////// |
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| 31 | int sys_thread_sleep( void ) |
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| 32 | { |
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| 33 | |
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| 34 | thread_t * this = CURRENT_THREAD; |
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| 35 | |
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| 36 | #if DEBUG_SYS_THREAD_SLEEP |
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| 37 | uint64_t tm_start; |
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| 38 | uint64_t tm_end; |
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| 39 | tm_start = hal_get_cycles(); |
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| 40 | if( DEBUG_SYS_THREAD_SLEEP < tm_start ) |
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| 41 | printk("\n[DBG] %s : thread %x blocked / process %x / cycle %d\n", |
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| 42 | __FUNCTION__ , this, this->process->pid , (uint32_t)tm_start ); |
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| 43 | #endif |
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| 44 | |
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| 45 | thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_GLOBAL ); |
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| 46 | sched_yield("blocked on sleep"); |
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| 47 | |
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| 48 | #if DEBUG_SYS_THREAD_SLEEP |
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| 49 | tm_end = hal_get_cycles(); |
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| 50 | if( DEBUG_SYS_THREAD_SLEEP < tm_end ) |
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| 51 | printk("\n[DBG] %s : thread %x resume / process %x / cycle %d\n", |
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| 52 | __FUNCTION__ , this, this->process->pid , (uint32_t)tm_end ); |
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| 53 | #endif |
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| 54 | |
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| 55 | return 0; |
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| 56 | |
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| 57 | } // end sys_thread_sleep() |
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