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e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
70 lines
3.3 KiB
C
70 lines
3.3 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et 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/atomic.h"
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#include "libc/calls/struct/timespec.h"
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#include "libc/intrin/atomic.h"
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#include "libc/testlib/testlib.h"
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#include "libc/thread/thread.h"
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#include "third_party/zip/zip.h"
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#define THREADS 8
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#define ITERATIONS 20000
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atomic_int number;
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pthread_t th[THREADS];
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pthread_spinlock_t lock;
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void *SpinWorker(void *arg) {
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for (int i = 0; i < ITERATIONS; ++i) {
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ASSERT_EQ(0, pthread_spin_lock(&lock));
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atomic_store_explicit(
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&number, atomic_load_explicit(&number, memory_order_relaxed) + 1,
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memory_order_relaxed);
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ASSERT_EQ(0, pthread_spin_unlock(&lock));
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}
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return 0;
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}
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TEST(pthread_spin_lock, torture) {
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int i;
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number = 0;
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ASSERT_EQ(0, pthread_spin_init(&lock, PTHREAD_PROCESS_PRIVATE));
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for (i = 0; i < THREADS; ++i) {
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ASSERT_EQ(0, pthread_create(th + i, 0, SpinWorker, 0));
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}
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for (i = 0; i < THREADS; ++i) {
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ASSERT_EQ(0, pthread_join(th[i], 0));
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}
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ASSERT_EQ(0, pthread_spin_destroy(&lock));
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ASSERT_EQ(THREADS * ITERATIONS, number);
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}
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TEST(pthread_spin_lock, macros) {
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ASSERT_EQ(0, pthread_spin_init(&lock, PTHREAD_PROCESS_PRIVATE));
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ASSERT_EQ(0, pthread_spin_lock(&lock));
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ASSERT_EQ(0, pthread_spin_unlock(&lock));
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ASSERT_EQ(0, pthread_spin_destroy(&lock));
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}
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TEST(pthread_spin_lock, linked) {
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ASSERT_EQ(0, (pthread_spin_init)(&lock, PTHREAD_PROCESS_PRIVATE));
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ASSERT_EQ(0, (pthread_spin_lock)(&lock));
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ASSERT_EQ(0, (pthread_spin_unlock)(&lock));
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ASSERT_EQ(0, (pthread_spin_destroy)(&lock));
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}
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