Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/curl/lib/timeval.c @ 46:7ee69f120f19 default tip

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>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /***************************************************************************
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2 * _ _ ____ _
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3 * Project ___| | | | _ \| |
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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 * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
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9 *
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10 * This software is licensed as described in the file COPYING, which
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11 * you should have received as part of this distribution. The terms
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12 * are also available at https://curl.haxx.se/docs/copyright.html.
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13 *
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14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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15 * copies of the Software, and permit persons to whom the Software is
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16 * furnished to do so, under the terms of the COPYING file.
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17 *
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18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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19 * KIND, either express or implied.
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20 *
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21 ***************************************************************************/
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22
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23 #include "timeval.h"
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24
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25 #if defined(WIN32) && !defined(MSDOS)
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27 /* set in win32_init() */
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28 extern LARGE_INTEGER Curl_freq;
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29 extern bool Curl_isVistaOrGreater;
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31 struct curltime Curl_now(void)
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32 {
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33 struct curltime now;
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34 if(Curl_isVistaOrGreater) { /* QPC timer might have issues pre-Vista */
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35 LARGE_INTEGER count;
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36 QueryPerformanceCounter(&count);
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37 now.tv_sec = (time_t)(count.QuadPart / Curl_freq.QuadPart);
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38 now.tv_usec = (int)((count.QuadPart % Curl_freq.QuadPart) * 1000000 /
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39 Curl_freq.QuadPart);
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40 }
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41 else {
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42 /* Disable /analyze warning that GetTickCount64 is preferred */
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43 #if defined(_MSC_VER)
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44 #pragma warning(push)
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45 #pragma warning(disable:28159)
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46 #endif
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47 DWORD milliseconds = GetTickCount();
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48 #if defined(_MSC_VER)
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49 #pragma warning(pop)
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50 #endif
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51
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52 now.tv_sec = milliseconds / 1000;
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53 now.tv_usec = (milliseconds % 1000) * 1000;
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54 }
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55 return now;
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56 }
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57
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58 #elif defined(HAVE_CLOCK_GETTIME_MONOTONIC)
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59
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60 struct curltime Curl_now(void)
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61 {
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62 /*
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63 ** clock_gettime() is granted to be increased monotonically when the
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64 ** monotonic clock is queried. Time starting point is unspecified, it
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65 ** could be the system start-up time, the Epoch, or something else,
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66 ** in any case the time starting point does not change once that the
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67 ** system has started up.
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68 */
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69 #ifdef HAVE_GETTIMEOFDAY
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70 struct timeval now;
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71 #endif
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72 struct curltime cnow;
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73 struct timespec tsnow;
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74
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75 /*
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76 ** clock_gettime() may be defined by Apple's SDK as weak symbol thus
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77 ** code compiles but fails during run-time if clock_gettime() is
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78 ** called on unsupported OS version.
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79 */
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80 #if defined(__APPLE__) && (HAVE_BUILTIN_AVAILABLE == 1)
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81 bool have_clock_gettime = FALSE;
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82 if(__builtin_available(macOS 10.12, iOS 10, tvOS 10, watchOS 3, *))
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83 have_clock_gettime = TRUE;
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84 #endif
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85
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86 if(
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87 #if defined(__APPLE__) && (HAVE_BUILTIN_AVAILABLE == 1)
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88 have_clock_gettime &&
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89 #endif
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90 (0 == clock_gettime(CLOCK_MONOTONIC, &tsnow))) {
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91 cnow.tv_sec = tsnow.tv_sec;
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92 cnow.tv_usec = (unsigned int)(tsnow.tv_nsec / 1000);
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93 }
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94 /*
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95 ** Even when the configure process has truly detected monotonic clock
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96 ** availability, it might happen that it is not actually available at
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97 ** run-time. When this occurs simply fallback to other time source.
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98 */
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99 #ifdef HAVE_GETTIMEOFDAY
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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diff changeset
100 else {
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diff changeset
101 (void)gettimeofday(&now, NULL);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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diff changeset
102 cnow.tv_sec = now.tv_sec;
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parents:
diff changeset
103 cnow.tv_usec = (unsigned int)now.tv_usec;
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diff changeset
104 }
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diff changeset
105 #else
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parents:
diff changeset
106 else {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
107 cnow.tv_sec = time(NULL);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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diff changeset
108 cnow.tv_usec = 0;
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parents:
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109 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
110 #endif
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
111 return cnow;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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112 }
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113
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diff changeset
114 #elif defined(HAVE_MACH_ABSOLUTE_TIME)
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115
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diff changeset
116 #include <stdint.h>
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117 #include <mach/mach_time.h>
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118
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diff changeset
119 struct curltime Curl_now(void)
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120 {
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Franz Glasner <fzglas.hg@dom66.de>
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121 /*
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diff changeset
122 ** Monotonic timer on Mac OS is provided by mach_absolute_time(), which
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123 ** returns time in Mach "absolute time units," which are platform-dependent.
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124 ** To convert to nanoseconds, one must use conversion factors specified by
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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125 ** mach_timebase_info().
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126 */
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diff changeset
127 static mach_timebase_info_data_t timebase;
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128 struct curltime cnow;
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129 uint64_t usecs;
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130
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diff changeset
131 if(0 == timebase.denom)
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132 (void) mach_timebase_info(&timebase);
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133
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diff changeset
134 usecs = mach_absolute_time();
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135 usecs *= timebase.numer;
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diff changeset
136 usecs /= timebase.denom;
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137 usecs /= 1000;
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diff changeset
138
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diff changeset
139 cnow.tv_sec = usecs / 1000000;
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diff changeset
140 cnow.tv_usec = (int)(usecs % 1000000);
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141
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142 return cnow;
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diff changeset
143 }
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diff changeset
144
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diff changeset
145 #elif defined(HAVE_GETTIMEOFDAY)
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diff changeset
146
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diff changeset
147 struct curltime Curl_now(void)
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diff changeset
148 {
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diff changeset
149 /*
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diff changeset
150 ** gettimeofday() is not granted to be increased monotonically, due to
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diff changeset
151 ** clock drifting and external source time synchronization it can jump
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152 ** forward or backward in time.
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153 */
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parents:
diff changeset
154 struct timeval now;
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parents:
diff changeset
155 struct curltime ret;
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parents:
diff changeset
156 (void)gettimeofday(&now, NULL);
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diff changeset
157 ret.tv_sec = now.tv_sec;
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diff changeset
158 ret.tv_usec = (int)now.tv_usec;
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diff changeset
159 return ret;
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diff changeset
160 }
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diff changeset
161
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diff changeset
162 #else
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diff changeset
163
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diff changeset
164 struct curltime Curl_now(void)
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diff changeset
165 {
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parents:
diff changeset
166 /*
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diff changeset
167 ** time() returns the value of time in seconds since the Epoch.
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diff changeset
168 */
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parents:
diff changeset
169 struct curltime now;
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diff changeset
170 now.tv_sec = time(NULL);
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diff changeset
171 now.tv_usec = 0;
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diff changeset
172 return now;
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diff changeset
173 }
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diff changeset
174
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parents:
diff changeset
175 #endif
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parents:
diff changeset
176
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parents:
diff changeset
177 /*
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parents:
diff changeset
178 * Returns: time difference in number of milliseconds. For too large diffs it
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diff changeset
179 * returns max value.
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diff changeset
180 *
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diff changeset
181 * @unittest: 1323
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diff changeset
182 */
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parents:
diff changeset
183 timediff_t Curl_timediff(struct curltime newer, struct curltime older)
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parents:
diff changeset
184 {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
185 timediff_t diff = (timediff_t)newer.tv_sec-older.tv_sec;
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parents:
diff changeset
186 if(diff >= (TIMEDIFF_T_MAX/1000))
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
187 return TIMEDIFF_T_MAX;
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parents:
diff changeset
188 else if(diff <= (TIMEDIFF_T_MIN/1000))
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
189 return TIMEDIFF_T_MIN;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
190 return diff * 1000 + (newer.tv_usec-older.tv_usec)/1000;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
191 }
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parents:
diff changeset
192
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
193 /*
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
194 * Returns: time difference in number of microseconds. For too large diffs it
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
195 * returns max value.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
196 */
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
197 timediff_t Curl_timediff_us(struct curltime newer, struct curltime older)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
198 {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
199 timediff_t diff = (timediff_t)newer.tv_sec-older.tv_sec;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
200 if(diff >= (TIMEDIFF_T_MAX/1000000))
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
201 return TIMEDIFF_T_MAX;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
202 else if(diff <= (TIMEDIFF_T_MIN/1000000))
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
203 return TIMEDIFF_T_MIN;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
204 return diff * 1000000 + newer.tv_usec-older.tv_usec;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
205 }