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- Improve compatibility with Blink virtual machine
- Add non-POSIX APIs for joining threads and signal masks
- Never ever use anything except 32-bit integers for atomics
- Add some `#undef` statements to workaround `ctags` problems
This commit is contained in:
Justine Tunney 2022-11-10 21:52:47 -08:00
parent b46ac13504
commit f2af97711b
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114 changed files with 902 additions and 363 deletions
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test/libc/intrin/pthread_spin_lock_test.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/atomic.h"
#include "libc/calls/struct/timespec.h"
#include "libc/intrin/atomic.h"
#include "libc/intrin/intrin.h"
#include "libc/intrin/kprintf.h"
#include "libc/testlib/testlib.h"
#include "libc/thread/thread.h"
#include "third_party/zip/zip.h"
#define THREADS 8
#define ITERATIONS 20000
atomic_int number;
pthread_t th[THREADS];
pthread_spinlock_t lock;
void *SpinWorker(void *arg) {
for (int i = 0; i < ITERATIONS; ++i) {
ASSERT_EQ(0, pthread_spin_lock(&lock));
atomic_store_explicit(
&number, atomic_load_explicit(&number, memory_order_relaxed) + 1,
memory_order_relaxed);
ASSERT_EQ(0, pthread_spin_unlock(&lock));
}
return 0;
}
TEST(pthread_spin_lock, torture) {
int i;
number = 0;
ASSERT_EQ(0, pthread_spin_init(&lock, PTHREAD_PROCESS_PRIVATE));
for (i = 0; i < THREADS; ++i) {
ASSERT_EQ(0, pthread_create(th + i, 0, SpinWorker, 0));
}
for (i = 0; i < THREADS; ++i) {
ASSERT_EQ(0, pthread_join(th[i], 0));
}
ASSERT_EQ(0, pthread_spin_destroy(&lock));
ASSERT_EQ(THREADS * ITERATIONS, number);
}
TEST(pthread_spin_lock, macros) {
ASSERT_EQ(0, pthread_spin_init(&lock, PTHREAD_PROCESS_PRIVATE));
ASSERT_EQ(0, pthread_spin_lock(&lock));
ASSERT_EQ(0, pthread_spin_unlock(&lock));
ASSERT_EQ(0, pthread_spin_destroy(&lock));
}
TEST(pthread_spin_lock, linked) {
ASSERT_EQ(0, (pthread_spin_init)(&lock, PTHREAD_PROCESS_PRIVATE));
ASSERT_EQ(0, (pthread_spin_lock)(&lock));
ASSERT_EQ(0, (pthread_spin_unlock)(&lock));
ASSERT_EQ(0, (pthread_spin_destroy)(&lock));
}