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https://github.com/moparisthebest/curl
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timeval: fix use of weak symbol clock_gettime() on Apple platforms
Closes #3048
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@ -5,7 +5,7 @@
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* | (__| |_| | _ <| |___
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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* \___|\___/|_| \_\_____|
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*
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*
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* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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*
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* This software is licensed as described in the file COPYING, which
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* you should have received as part of this distribution. The terms
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@ -60,7 +60,23 @@ struct curltime Curl_now(void)
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struct timeval now;
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struct timeval now;
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struct curltime cnow;
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struct curltime cnow;
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struct timespec tsnow;
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struct timespec tsnow;
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if(0 == clock_gettime(CLOCK_MONOTONIC, &tsnow)) {
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/*
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** clock_gettime() may be defined by Apple's SDK as weak symbol thus
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** code compiles but fails during run-time if clock_gettime() is
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** called on unsupported OS version.
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*/
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#if defined(__APPLE__) && (HAVE_BUILTIN_AVAILABLE == 1)
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bool have_clock_gettime = FALSE;
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if(__builtin_available(macOS 10.12, iOS 10, tvOS 10, watchOS 3, *))
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have_clock_gettime = TRUE;
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#endif
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if(
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#if defined(__APPLE__) && (HAVE_BUILTIN_AVAILABLE == 1)
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have_clock_gettime &&
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#endif
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(0 == clock_gettime(CLOCK_MONOTONIC, &tsnow))) {
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cnow.tv_sec = tsnow.tv_sec;
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cnow.tv_sec = tsnow.tv_sec;
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cnow.tv_usec = (unsigned int)(tsnow.tv_nsec / 1000);
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cnow.tv_usec = (unsigned int)(tsnow.tv_nsec / 1000);
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}
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}
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