mirror of
https://github.com/jart/cosmopolitan.git
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97 lines
4.3 KiB
C
97 lines
4.3 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set 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/calls/struct/timespec.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/intrin/kprintf.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/runtime.h"
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#include "libc/sysv/consts/clock.h"
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#include "libc/sysv/consts/sig.h"
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#include "libc/testlib/testlib.h"
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#include "libc/thread/semaphore.h"
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#include "libc/thread/thread.h"
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void *Worker(void *arg) {
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int rc;
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sem_t **s = arg;
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struct timespec ts;
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ASSERT_SYS(0, 0, clock_gettime(CLOCK_REALTIME, &ts));
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ts.tv_sec += 1;
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ASSERT_SYS(0, 0, sem_post(s[0]));
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ASSERT_SYS(0, 0, sem_timedwait(s[1], &ts));
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return 0;
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}
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TEST(sem_timedwait, threads) {
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int i, r, n = 4;
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sem_t sm[2], *s[2] = {sm, sm + 1};
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pthread_t *t = _gc(malloc(sizeof(pthread_t) * n));
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ASSERT_SYS(0, 0, sem_init(s[0], 0, 0));
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ASSERT_SYS(0, 0, sem_init(s[1], 0, 0));
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for (i = 0; i < n; ++i) ASSERT_EQ(0, pthread_create(t + i, 0, Worker, s));
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for (i = 0; i < n; ++i) ASSERT_SYS(0, 0, sem_wait(s[0]));
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ASSERT_SYS(0, 0, sem_getvalue(s[0], &r));
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ASSERT_EQ(0, r);
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for (i = 0; i < n; ++i) ASSERT_SYS(0, 0, sem_post(s[1]));
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for (i = 0; i < n; ++i) ASSERT_EQ(0, pthread_join(t[i], 0));
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ASSERT_SYS(0, 0, sem_getvalue(s[1], &r));
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ASSERT_EQ(0, r);
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ASSERT_SYS(0, 0, sem_destroy(s[1]));
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ASSERT_SYS(0, 0, sem_destroy(s[0]));
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}
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TEST(sem_timedwait, processes) {
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if (IsOpenbsd()) return; // TODO(jart): fix me
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int i, r, rc, n = 4, pshared = 1;
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sem_t *sm = _mapshared(FRAMESIZE), *s[2] = {sm, sm + 1};
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ASSERT_SYS(0, 0, sem_init(s[0], pshared, 0));
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ASSERT_SYS(0, 0, sem_init(s[1], pshared, 0));
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for (i = 0; i < n; ++i) {
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ASSERT_NE(-1, (rc = fork()));
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if (!rc) Worker(s), _Exit(0);
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}
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for (i = 0; i < n; ++i) ASSERT_SYS(0, 0, sem_wait(s[0]));
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ASSERT_SYS(0, 0, sem_getvalue(s[0], &r));
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ASSERT_EQ(0, r);
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for (i = 0; i < n; ++i) ASSERT_SYS(0, 0, sem_post(s[1]));
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for (;;) {
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int ws, pid, e = errno;
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if ((pid = waitpid(0, &ws, 0)) != -1) {
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if (WIFSIGNALED(ws)) {
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kprintf("process %d terminated with %G\n", pid, WTERMSIG(ws));
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testlib_incrementfailed();
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} else if (WEXITSTATUS(ws)) {
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kprintf("process %d exited with %d\n", pid, WEXITSTATUS(ws));
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testlib_incrementfailed();
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}
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} else {
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ASSERT_EQ(ECHILD, errno);
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errno = e;
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break;
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}
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}
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ASSERT_SYS(0, 0, sem_getvalue(s[1], &r));
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ASSERT_EQ(0, r);
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ASSERT_SYS(0, 0, sem_destroy(s[1]));
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ASSERT_SYS(0, 0, sem_destroy(s[0]));
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ASSERT_SYS(0, 0, munmap(sm, FRAMESIZE));
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}
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