7db0a6cc5f
Jens Gustedt suggested a better implementation last year on the musl mailing list: https://www.openwall.com/lists/musl/2022/11/19/1 It means the constants are sparse, but in return it means we can add future constants and they'll be backward compatible. (Sadly you'll need to be on API level 35 before you can use anything but TIME_UTC.) I doubt this will ever matter, because everyone should just stick to clock_gettime()/clock_getres() anyway, and anyone who does have a legitimate use for timespec_get() and timespec_getres() probably needs to support non-Linux and so can't use any clocks that aren't in ISO C anyway. But given that we don't _have_ to paint ourselves into a corner here, we may as well take the opportunity to not do so. Test: strace Change-Id: I293d32fcbcf7f6703564dac0978ae2a10192a482
37 lines
1.6 KiB
C++
37 lines
1.6 KiB
C++
/*
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* Copyright (C) 2018 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <time.h>
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int timespec_get(timespec* ts, int base) {
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return (clock_gettime(base - 1, ts) != -1) ? base : 0;
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}
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int timespec_getres(timespec* ts, int base) {
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return (clock_getres(base - 1, ts) != -1) ? base : 0;
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}
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