1 | //timeval.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010 |
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5 | * The code (may) include prototypes and comments (and maybe |
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6 | * other code fragements) from libpulse*. They are mostly copyrighted by: |
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7 | * Lennart Poettering <poettering@users.sourceforge.net> and |
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8 | * Pierre Ossman <drzeus@drzeus.cx> |
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9 | * |
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10 | * This file is part of libroarpulse a part of RoarAudio, |
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11 | * a cross-platform sound system for both, home and professional use. |
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12 | * See README for details. |
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13 | * |
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14 | * This file is free software; you can redistribute it and/or modify |
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15 | * it under the terms of the GNU General Public License version 3 |
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16 | * as published by the Free Software Foundation. |
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17 | * |
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18 | * RoarAudio is distributed in the hope that it will be useful, |
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19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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21 | * GNU General Public License for more details. |
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22 | * |
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23 | * You should have received a copy of the GNU General Public License |
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24 | * along with this software; see the file COPYING. If not, write to |
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25 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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26 | * Boston, MA 02110-1301, USA. |
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27 | * |
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28 | * NOTE for everyone want's to change something and send patches: |
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29 | * read README and HACKING! There a addition information on |
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30 | * the license of this document you need to read before you send |
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31 | * any patches. |
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32 | * |
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33 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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34 | * or libpulse*: |
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35 | * The libs libroaresd, libroararts and libroarpulse link this libroar |
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36 | * and are therefore GPL. Because of this it may be illigal to use |
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37 | * them with any software that uses libesd, libartsc or libpulse*. |
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38 | */ |
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39 | |
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40 | #include <libroarpulse/libroarpulse.h> |
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41 | |
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42 | struct timeval *pa_gettimeofday(struct timeval *tv) { |
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43 | #ifdef ROAR_HAVE_GETTIMEOFDAY |
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44 | if ( gettimeofday(tv, NULL) == -1 ) { |
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45 | return NULL; |
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46 | } else { |
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47 | return tv; |
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48 | } |
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49 | #else |
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50 | return NULL; |
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51 | #endif |
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52 | } |
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53 | |
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54 | pa_usec_t pa_timeval_diff(const struct timeval *a, const struct timeval *b); |
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55 | int pa_timeval_cmp(const struct timeval *a, const struct timeval *b); |
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56 | pa_usec_t pa_timeval_age(const struct timeval *tv); |
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57 | struct timeval* pa_timeval_add(struct timeval *tv, pa_usec_t v) { |
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58 | unsigned long long int secs; |
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59 | |
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60 | if ( tv == NULL ) |
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61 | return NULL; |
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62 | |
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63 | secs = v/1000000LLU; |
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64 | |
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65 | tv->tv_sec += secs; |
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66 | |
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67 | v -= secs*1000000LLU; |
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68 | |
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69 | tv->tv_usec += v; |
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70 | |
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71 | while ( tv->tv_usec > 1000000LLU ) { |
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72 | tv->tv_usec -= 1000000LLU; |
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73 | tv->tv_sec += 1; |
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74 | } |
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75 | |
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76 | return tv; |
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77 | } |
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78 | |
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79 | |
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80 | //ll |
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