mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
18bb5888e1
- Remove PAGESIZE constant
- Fix realloc() documentation
- Fix ttyname_r() error reporting
- Make forking more reliable on Windows
- Make execvp() a few microseconds faster
- Make system() a few microseconds faster
- Tighten up the socket-related magic numbers
- Loosen restrictions on mmap() offset alignment
- Improve GetProgramExecutableName() with getenv("_")
- Use mkstemp() as basis for mktemp(), tmpfile(), tmpfd()
- Fix flakes in pthread_cancel_test, unix_test, fork_test
- Fix recently introduced futex stack overflow regression
- Let sockets be passed as stdio to subprocesses on Windows
- Improve security of bind() on Windows w/ SO_EXCLUSIVEADDRUSE
62 lines
2.8 KiB
C
62 lines
2.8 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/atomic.h"
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#include "libc/cosmo.h"
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#include "libc/dce.h"
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#include "libc/intrin/atomic.h"
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#include "libc/mem/gc.internal.h"
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#include "libc/mem/mem.h"
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#include "libc/testlib/testlib.h"
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#include "libc/thread/thread.h"
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#define N 32
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int i, n;
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struct spawn *t;
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atomic_int x, y;
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pthread_barrier_t b;
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static _Atomic(uint32_t) once;
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void InitFactory(void) {
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ASSERT_EQ(0, atomic_load(&x));
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atomic_fetch_add(&y, 1);
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}
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void *Worker(void *arg) {
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pthread_barrier_wait(&b);
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ASSERT_EQ(0, cosmo_once(&once, InitFactory));
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ASSERT_EQ(1, atomic_load(&y));
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atomic_fetch_add(&x, 1);
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return 0;
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}
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TEST(cosmo_once, test) {
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pthread_t th[N];
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x = y = 0;
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ASSERT_EQ(0, pthread_barrier_init(&b, 0, N));
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for (i = 0; i < N; ++i) {
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ASSERT_EQ(0, pthread_create(th + i, 0, Worker, 0));
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}
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for (i = 0; i < N; ++i) {
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ASSERT_EQ(0, pthread_join(th[i], 0));
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}
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ASSERT_EQ(N, atomic_load(&x));
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ASSERT_EQ(1, atomic_load(&y));
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ASSERT_EQ(0, pthread_barrier_destroy(&b));
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}
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