| 1 | /* |
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| 2 | * mman.h - User level <time> library definition. |
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| 3 | * |
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| 4 | * Author Alain Greiner (2016,2017,2018) |
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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 | #ifndef _TIME_H_ |
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| 25 | #define _TIME_H_ |
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| 26 | |
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| 27 | /***************************************************************************************** |
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| 28 | * This file defines the user level, time of day related <time> library. |
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| 29 | * All these functions make a system call to access the calling thread VMM. |
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| 30 | * The user/kernel shared structures and mnemonics are defined in |
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| 31 | * the <syscalls/shared_include/shared_time.h> file. |
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| 32 | ****************************************************************************************/ |
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| 33 | |
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| 34 | #include <shared_time.h> |
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| 35 | |
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| 36 | /***************************************************************************************** |
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| 37 | * This function returns in the structure <tv>, defined in the time.h file, |
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| 38 | * the current time (in seconds & micro-seconds). |
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| 39 | * It is computed from the calling core descriptor. |
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| 40 | * The timezone is not supported. |
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| 41 | ***************************************************************************************** |
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| 42 | * @ tv : pointer on the timeval structure. |
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| 43 | * @ tz : pointer on the timezone structure : must be NULL. |
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| 44 | * @ return 0 if success / returns -1 if failure. |
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| 45 | ****************************************************************************************/ |
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| 46 | int gettimeofday( struct timeval * tv, |
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| 47 | struct timezone * tz ); |
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| 48 | |
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| 49 | |
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| 50 | |
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| 51 | #endif /* _TIME_H_ */ |
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