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Make more fixes and improvements

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- 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
This commit is contained in:
Justine Tunney 2023-07-29 18:44:15 -07:00
parent 140a8a52e5
commit 18bb5888e1
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GPG key ID: BE714B4575D6E328
311 changed files with 1239 additions and 2622 deletions
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test/libc/intrin/cosmo_once_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/cosmo.h"
#include "libc/dce.h"
#include "libc/intrin/atomic.h"
#include "libc/mem/gc.internal.h"
#include "libc/mem/mem.h"
#include "libc/testlib/testlib.h"
#include "libc/thread/thread.h"
#define N 32
int i, n;
struct spawn *t;
atomic_int x, y;
pthread_barrier_t b;
static _Atomic(uint32_t) once;
void InitFactory(void) {
ASSERT_EQ(0, atomic_load(&x));
atomic_fetch_add(&y, 1);
}
void *Worker(void *arg) {
pthread_barrier_wait(&b);
ASSERT_EQ(0, cosmo_once(&once, InitFactory));
ASSERT_EQ(1, atomic_load(&y));
atomic_fetch_add(&x, 1);
return 0;
}
TEST(cosmo_once, test) {
pthread_t th[N];
x = y = 0;
ASSERT_EQ(0, pthread_barrier_init(&b, 0, N));
for (i = 0; i < N; ++i) {
ASSERT_EQ(0, pthread_create(th + i, 0, Worker, 0));
}
for (i = 0; i < N; ++i) {
ASSERT_EQ(0, pthread_join(th[i], 0));
}
ASSERT_EQ(N, atomic_load(&x));
ASSERT_EQ(1, atomic_load(&y));
ASSERT_EQ(0, pthread_barrier_destroy(&b));
}