| 1 | /** |
| 2 | * \file timing.h |
| 3 | * |
| 4 | * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine |
| 5 | * |
| 6 | * Copyright (C) 2009 Paul Bakker <polarssl_maintainer at polarssl dot org> |
| 7 | * |
| 8 | * All rights reserved. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * |
| 14 | * * Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer. |
| 16 | * * Redistributions in binary form must reproduce the above copyright |
| 17 | * notice, this list of conditions and the following disclaimer in the |
| 18 | * documentation and/or other materials provided with the distribution. |
| 19 | * * Neither the names of PolarSSL or XySSL nor the names of its contributors |
| 20 | * may be used to endorse or promote products derived from this software |
| 21 | * without specific prior written permission. |
| 22 | * |
| 23 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 24 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 25 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 26 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 27 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 28 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED |
| 29 | * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 30 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 31 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 32 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 33 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 34 | */ |
| 35 | #ifndef POLARSSL_TIMING_H |
| 36 | #define POLARSSL_TIMING_H |
| 37 | |
| 38 | /** |
| 39 | * \brief timer structure |
| 40 | */ |
| 41 | struct hr_time |
| 42 | { |
| 43 | unsigned char opaque[32]; |
| 44 | }; |
| 45 | |
| 46 | #ifdef __cplusplus |
| 47 | extern "C" { |
| 48 | #endif |
| 49 | |
| 50 | extern int alarmed; |
| 51 | |
| 52 | /** |
| 53 | * \brief Return the CPU cycle counter value |
| 54 | */ |
| 55 | unsigned long hardclock( void ); |
| 56 | |
| 57 | /** |
| 58 | * \brief Return the elapsed time in milliseconds |
| 59 | * |
| 60 | * \param val points to a timer structure |
| 61 | * \param reset if set to 1, the timer is restarted |
| 62 | */ |
| 63 | unsigned long get_timer( struct hr_time *val, int reset ); |
| 64 | |
| 65 | /** |
| 66 | * \brief Setup an alarm clock |
| 67 | * |
| 68 | * \param seconds delay before the "alarmed" flag is set |
| 69 | */ |
| 70 | void set_alarm( int seconds ); |
| 71 | |
| 72 | /** |
| 73 | * \brief Sleep for a certain amount of time |
| 74 | */ |
| 75 | void m_sleep( int milliseconds ); |
| 76 | |
| 77 | #ifdef __cplusplus |
| 78 | } |
| 79 | #endif |
| 80 | |
| 81 | #endif /* timing.h */ |
| 82 | |
