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annotate packages/net/tcpip/current/include/sys/time.h @ 115:6ed91473a1cd ecos-sw-2000-08-21

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Merge from eCos master repository on 2000-08-21-22:40:54-BST
author jlarmour
date Fri, 25 Aug 2000 17:32:38 +0000
parents ced4577552cd
children e0c0827131d1
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1 //==========================================================================
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2 //
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3 // include/sys/time.h
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4 //
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5 //
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6 //
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7 //==========================================================================
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8 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Red Hat eCos Public License
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12 // Version 1.1 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://www.redhat.com/
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15 //
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16 // Software distributed under the License is distributed on an "AS IS"
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Configurable Operating System,
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22 // released September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Red Hat.
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25 // Portions created by Red Hat are
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26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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27 // All Rights Reserved.
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28 // -------------------------------------------
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29 //
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30 //####COPYRIGHTEND####
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31 //####BSDCOPYRIGHTBEGIN####
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32 //
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33 // -------------------------------------------
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34 //
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35 // Portions of this software may have been derived from OpenBSD or other sources,
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36 // and are covered by the appropriate copyright disclaimers included herein.
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37 //
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38 // -------------------------------------------
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39 //
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40 //####BSDCOPYRIGHTEND####
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41 //==========================================================================
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42 //#####DESCRIPTIONBEGIN####
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43 //
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44 // Author(s): gthomas
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45 // Contributors: gthomas
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46 // Date: 2000-01-10
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47 // Purpose:
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48 // Description:
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49 //
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50 //
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51 //####DESCRIPTIONEND####
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52 //
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53 //==========================================================================
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54
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55
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56 /* $OpenBSD: time.h,v 1.9 1999/12/06 19:36:42 aaron Exp $ */
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57 /* $NetBSD: time.h,v 1.18 1996/04/23 10:29:33 mycroft Exp $ */
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58
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59 /*
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60 * Copyright (c) 1982, 1986, 1993
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61 * The Regents of the University of California. All rights reserved.
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62 *
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63 * Redistribution and use in source and binary forms, with or without
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64 * modification, are permitted provided that the following conditions
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65 * are met:
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66 * 1. Redistributions of source code must retain the above copyright
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67 * notice, this list of conditions and the following disclaimer.
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68 * 2. Redistributions in binary form must reproduce the above copyright
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69 * notice, this list of conditions and the following disclaimer in the
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70 * documentation and/or other materials provided with the distribution.
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71 * 3. All advertising materials mentioning features or use of this software
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72 * must display the following acknowledgement:
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73 * This product includes software developed by the University of
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74 * California, Berkeley and its contributors.
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75 * 4. Neither the name of the University nor the names of its contributors
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76 * may be used to endorse or promote products derived from this software
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77 * without specific prior written permission.
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78 *
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79 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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80 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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81 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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82 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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83 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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84 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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85 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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86 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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87 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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88 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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89 * SUCH DAMAGE.
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90 *
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91 * @(#)time.h 8.2 (Berkeley) 7/10/94
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92 */
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93
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94 #ifndef _SYS_TIME_H_
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95 #define _SYS_TIME_H_
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96
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97 #include <sys/types.h>
115
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98 #include <time.h>
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99
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100 #if 0 //ndef __time_t_defined
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101 typedef int time_t;
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102 # define __time_t_defined
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103 #endif
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104
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105 #if 0
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106
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107 /*
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108 * Structure returned by gettimeofday(2) system call,
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109 * and used in other calls.
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110 */
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111 struct timeval {
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112 long tv_sec; /* seconds */
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113 long tv_usec; /* and microseconds */
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114 };
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115
115
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116 #endif
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117
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118 #if 0
97
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119 /*
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120 * Structure defined by POSIX.1b to be like a timeval.
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121 */
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122 struct timespec {
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123 time_t tv_sec; /* seconds */
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124 long tv_nsec; /* and nanoseconds */
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125 };
115
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126 #endif
97
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127
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128 #define TIMEVAL_TO_TIMESPEC(tv, ts) { \
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129 (ts)->tv_sec = (tv)->tv_sec; \
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130 (ts)->tv_nsec = (tv)->tv_usec * 1000; \
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131 }
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132 #define TIMESPEC_TO_TIMEVAL(tv, ts) { \
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133 (tv)->tv_sec = (ts)->tv_sec; \
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134 (tv)->tv_usec = (ts)->tv_nsec / 1000; \
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135 }
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136
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137 struct timezone {
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138 int tz_minuteswest; /* minutes west of Greenwich */
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139 int tz_dsttime; /* type of dst correction */
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140 };
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141 #define DST_NONE 0 /* not on dst */
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142 #define DST_USA 1 /* USA style dst */
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143 #define DST_AUST 2 /* Australian style dst */
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144 #define DST_WET 3 /* Western European dst */
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145 #define DST_MET 4 /* Middle European dst */
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146 #define DST_EET 5 /* Eastern European dst */
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147 #define DST_CAN 6 /* Canada */
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148
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149 /* Operations on timevals. */
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150 #define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
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151 #define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
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152 #define timercmp(tvp, uvp, cmp) \
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153 (((tvp)->tv_sec == (uvp)->tv_sec) ? \
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154 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \
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155 ((tvp)->tv_sec cmp (uvp)->tv_sec))
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156 #define timeradd(tvp, uvp, vvp) \
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157 do { \
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158 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
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159 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
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160 if ((vvp)->tv_usec >= 1000000) { \
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161 (vvp)->tv_sec++; \
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162 (vvp)->tv_usec -= 1000000; \
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163 } \
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164 } while (0)
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165 #define timersub(tvp, uvp, vvp) \
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166 do { \
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167 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
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168 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
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169 if ((vvp)->tv_usec < 0) { \
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170 (vvp)->tv_sec--; \
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171 (vvp)->tv_usec += 1000000; \
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172 } \
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173 } while (0)
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174
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175 /* Operations on timespecs. */
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176 #define timespecclear(tsp) (tsp)->tv_sec = (tsp)->tv_nsec = 0
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177 #define timespecisset(tsp) ((tsp)->tv_sec || (tsp)->tv_nsec)
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178 #define timespeccmp(tsp, usp, cmp) \
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179 (((tsp)->tv_sec == (usp)->tv_sec) ? \
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180 ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \
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181 ((tsp)->tv_sec cmp (usp)->tv_sec))
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182 #define timespecadd(tsp, usp, vsp) \
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183 do { \
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184 (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \
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185 (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \
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186 if ((vsp)->tv_nsec >= 1000000000L) { \
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187 (vsp)->tv_sec++; \
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188 (vsp)->tv_nsec -= 1000000000L; \
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189 } \
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190 } while (0)
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191 #define timespecsub(tsp, usp, vsp) \
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192 do { \
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193 (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \
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194 (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \
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195 if ((vsp)->tv_nsec < 0) { \
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196 (vsp)->tv_sec--; \
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197 (vsp)->tv_nsec += 1000000000L; \
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198 } \
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199 } while (0)
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200
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201 /*
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202 * Names of the interval timers, and structure
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203 * defining a timer setting.
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204 */
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205 #define ITIMER_REAL 0
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206 #define ITIMER_VIRTUAL 1
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207 #define ITIMER_PROF 2
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208
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209 struct itimerval {
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210 struct timeval it_interval; /* timer interval */
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211 struct timeval it_value; /* current value */
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212 };
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213
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214 /*
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215 * Getkerninfo clock information structure
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216 */
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217 struct clockinfo {
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218 int hz; /* clock frequency */
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219 int tick; /* micro-seconds per hz tick */
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220 int tickadj; /* clock skew rate for adjtime() */
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221 int stathz; /* statistics clock frequency */
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222 int profhz; /* profiling clock frequency */
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223 };
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224
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225 #define CLOCK_REALTIME 0
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226 #define CLOCK_VIRTUAL 1
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227 #define CLOCK_PROF 2
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228
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229 #define TIMER_RELTIME 0x0 /* relative timer */
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230 #ifndef TIMER_ABSTIME
97
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231 #define TIMER_ABSTIME 0x1 /* absolute timer */
115
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232 #endif
97
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233
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234 #if defined(_KERNEL) || defined(_STANDALONE)
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235 int itimerfix __P((struct timeval *tv));
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236 int itimerdecr __P((struct itimerval *itp, int usec));
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237 void microtime __P((struct timeval *tv));
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238 void settime __P((struct timeval *tv));
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239 #else /* !_KERNEL */
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240
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241 #ifndef __ECOS
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242 #include <time.h>
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243 #endif
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244
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245 #if 0 //ndef _POSIX_SOURCE
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246 #include <sys/cdefs.h>
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247
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248 __BEGIN_DECLS
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249 int adjtime __P((const struct timeval *, struct timeval *));
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250 int clock_getres __P((clockid_t, struct timespec *));
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251 int clock_gettime __P((clockid_t, struct timespec *));
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252 int clock_settime __P((clockid_t, const struct timespec *));
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253 int futimes __P((int, const struct timeval *));
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254 int getitimer __P((int, struct itimerval *));
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255 int gettimeofday __P((struct timeval *, struct timezone *));
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256 int nanosleep __P((const struct timespec *, struct timespec *));
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257 int setitimer __P((int, const struct itimerval *, struct itimerval *));
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258 int settimeofday __P((const struct timeval *, const struct timezone *));
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259 int utimes __P((const char *, const struct timeval *));
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260 __END_DECLS
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261 #endif /* !POSIX */
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262
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263 #endif /* !_KERNEL */
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264
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265 #endif /* !_SYS_TIME_H_ */