mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
3f0bcdc3ef
- Exhaustively document cancellation points - Rename SIGCANCEL to SIGTHR just like BSDs - Further improve POSIX thread cancellations - Ensure asynchronous cancellations work correctly - Elevate the quality of getrandom() and getentropy() - Make futexes cancel correctly on OpenBSD 6.x and 7.x - Add reboot.com and shutdown.com to examples directory - Remove underscore prefix from awesome timespec_*() APIs - Create assertions that help verify our cancellation points - Remove bad timespec APIs (cmp generalizes eq/ne/gt/gte/lt/lte)
99 lines
5 KiB
C
99 lines
5 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/struct/timespec.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/limits.h"
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#include "libc/stdio/rand.h"
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#include "libc/testlib/testlib.h"
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#include "third_party/nsync/time.h"
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TEST(timespec_sub, test) {
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EXPECT_TRUE(
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!timespec_cmp((struct timespec){-1},
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timespec_sub((struct timespec){1}, (struct timespec){2})));
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EXPECT_TRUE(
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!timespec_cmp((struct timespec){1},
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timespec_sub((struct timespec){2}, (struct timespec){1})));
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EXPECT_TRUE(!timespec_cmp(
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(struct timespec){1, 1},
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timespec_sub((struct timespec){2, 2}, (struct timespec){1, 1})));
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EXPECT_TRUE(!timespec_cmp(
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(struct timespec){0, 999999999},
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timespec_sub((struct timespec){2, 1}, (struct timespec){1, 2})));
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}
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TEST(timespec_frommillis, test) {
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EXPECT_TRUE(
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!timespec_cmp((struct timespec){0, 1000000}, timespec_frommillis(1)));
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EXPECT_TRUE(
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!timespec_cmp((struct timespec){0, 2000000}, timespec_frommillis(2)));
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EXPECT_TRUE(!timespec_cmp((struct timespec){1}, timespec_frommillis(1000)));
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}
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TEST(timespec_frommicros, test) {
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EXPECT_TRUE(
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!timespec_cmp((struct timespec){0, 1000}, timespec_frommicros(1)));
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EXPECT_TRUE(
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!timespec_cmp((struct timespec){0, 2000}, timespec_frommicros(2)));
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EXPECT_TRUE(
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!timespec_cmp((struct timespec){1}, timespec_frommicros(1000000)));
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EXPECT_TRUE(!timespec_cmp((struct timespec){2, 123000},
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timespec_frommicros(2000123)));
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}
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TEST(timespec_tomillis, test) {
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EXPECT_EQ(0, timespec_tomillis((struct timespec){0, 0}));
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EXPECT_EQ(1, timespec_tomillis((struct timespec){0, 1}));
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EXPECT_EQ(1, timespec_tomillis((struct timespec){0, 999999}));
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EXPECT_EQ(1, timespec_tomillis((struct timespec){0, 1000000}));
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EXPECT_EQ(1000, timespec_tomillis((struct timespec){0, 999999999}));
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EXPECT_EQ(2123, timespec_tomillis((struct timespec){2, 123000000}));
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EXPECT_EQ(INT64_MAX, timespec_tomillis((struct timespec){INT64_MAX, 0}));
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EXPECT_EQ(INT64_MIN, timespec_tomillis((struct timespec){INT64_MIN, 0}));
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EXPECT_EQ(INT64_MAX, timespec_tomillis(
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(struct timespec){0x7fffffffffffffff, 999999999}));
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}
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TEST(timespec_tomicros, test) {
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EXPECT_EQ(0, timespec_tomicros((struct timespec){0, 0}));
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EXPECT_EQ(1, timespec_tomicros((struct timespec){0, 1}));
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EXPECT_EQ(2000123, timespec_tomicros((struct timespec){2, 123000}));
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EXPECT_EQ(INT64_MAX, timespec_tomicros((struct timespec){INT64_MAX, 0}));
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EXPECT_EQ(INT64_MIN, timespec_tomicros((struct timespec){INT64_MIN, 0}));
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}
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TEST(timespec_tonanos, test) {
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EXPECT_EQ(2000123000, timespec_tonanos((struct timespec){2, 123000}));
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EXPECT_EQ(INT64_MAX, timespec_tonanos((struct timespec){INT64_MAX, 0}));
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EXPECT_EQ(INT64_MIN, timespec_tonanos((struct timespec){INT64_MIN, 0}));
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}
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static long mod(long x, long y) {
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if (y == -1) return 0;
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return x - y * (x / y - (x % y && (x ^ y) < 0));
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}
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TEST(timespec_sub, math) {
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for (int i = 0; i < 1000; ++i) {
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struct timespec x = {mod(lemur64(), 10), mod(lemur64(), 10)};
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struct timespec y = {mod(lemur64(), 10), mod(lemur64(), 10)};
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struct timespec z = timespec_add(timespec_sub(x, y), y);
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EXPECT_TRUE(!timespec_cmp(x, timespec_add(timespec_sub(x, y), y)));
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}
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}
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