mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
0d748ad58e
This change fixes Cosmopolitan so it has fewer opinions about compiler warnings. The whole repository had to be cleaned up to be buildable in -Werror -Wall mode. This lets us benefit from things like strict const checking. Some actual bugs might have been caught too.
111 lines
3.8 KiB
C
111 lines
3.8 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/calls/calls.h"
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#include "libc/dce.h"
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#include "libc/mem/gc.h"
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#include "libc/mem/mem.h"
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#include "libc/runtime/internal.h"
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#include "libc/stdio/lock.internal.h"
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#include "libc/testlib/subprocess.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/nsync/mu.h"
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int Ai;
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const char *A[16];
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// clang-format off
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void prepare1(void) { A[Ai++] = "prepare1"; }
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void prepare2(void) { A[Ai++] = "prepare2"; }
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void parent1(void) { A[Ai++] = "parent1"; }
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void parent2(void) { A[Ai++] = "parent2"; }
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void child1(void) { A[Ai++] = "child1"; }
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void child2(void) { A[Ai++] = "child2"; }
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// clang-format on
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void *ForceThreadingMode(void *arg) {
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return 0;
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}
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TEST(pthread_atfork, test) {
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__enable_threads();
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SPAWN(fork);
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ASSERT_EQ(0, pthread_atfork(prepare1, parent1, child1));
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ASSERT_EQ(0, pthread_atfork(prepare2, parent2, child2));
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flockfile(stdout);
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SPAWN(fork);
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flockfile(stdout);
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ASSERT_STREQ("prepare2", A[0]);
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ASSERT_STREQ("prepare1", A[1]);
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ASSERT_STREQ("child1", A[2]);
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ASSERT_STREQ("child2", A[3]);
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funlockfile(stdout);
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EXITS(0);
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funlockfile(stdout);
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ASSERT_STREQ("prepare2", A[0]);
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ASSERT_STREQ("prepare1", A[1]);
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ASSERT_STREQ("parent1", A[2]);
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ASSERT_STREQ("parent2", A[3]);
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EXITS(0);
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}
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pthread_mutex_t mu;
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void mu_lock(void) {
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pthread_mutex_lock(&mu);
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}
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void mu_unlock(void) {
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pthread_mutex_unlock(&mu);
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}
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void mu_funlock(void) {
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pthread_mutex_init(&mu, 0);
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}
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void *Worker(void *arg) {
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for (int i = 0; i < 20; ++i) {
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mu_lock();
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usleep(20);
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mu_unlock();
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SPAWN(fork);
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mu_lock();
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usleep(1);
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mu_unlock();
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mu_lock();
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mu_unlock();
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EXITS(0);
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mu_lock();
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mu_unlock();
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}
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return 0;
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}
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TEST(pthread_atfork, torture) {
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pthread_mutex_init(&mu, 0);
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pthread_atfork(mu_lock, mu_unlock, mu_funlock);
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int i, n = 4;
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pthread_t *t = _gc(malloc(sizeof(pthread_t) * n));
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for (i = 0; i < n; ++i) {
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ASSERT_EQ(0, pthread_create(t + 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(t[i], 0));
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}
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}
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