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Add *NSYNC unit test suite

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This change also fixes the clock_nanosleep() api and polyfills futexes
on Windows, Mac, and NetBSD using exponential backoff.
This commit is contained in:
Justine Tunney 2022-10-07 21:29:40 -07:00
parent 3421b9a580
commit 9849b4c7ba
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51 changed files with 5505 additions and 1060 deletions
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108
third_party/nsync/testing/atm_log.c vendored Normal file
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/*-*- mode:c;indent-tabs-mode:t;c-basic-offset:8;tab-width:8;coding:utf-8 -*-│
│vi: set et ft=c ts=8 tw=8 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2016 Google Inc. │
│ │
│ Licensed under the Apache License, Version 2.0 (the "License"); │
│ you may not use this file except in compliance with the License. │
│ You may obtain a copy of the License at │
│ │
│ http://www.apache.org/licenses/LICENSE-2.0 │
│ │
│ Unless required by applicable law or agreed to in writing, software │
│ distributed under the License is distributed on an "AS IS" BASIS, │
│ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. │
│ See the License for the specific language governing permissions and │
│ limitations under the License. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/mem/mem.h"
#include "libc/stdio/stdio.h"
#include "libc/thread/thread.h"
// clang-format off
#ifndef NSYNC_ATM_LOG
#define NSYNC_ATM_LOG 0
#endif
struct atm_log {
uintptr_t i;
uintptr_t thd_id;
uintptr_t c;
void *p;
uintptr_t o;
uintptr_t n;
const char *file;
uintptr_t line;
};
#define LOG_N 14
static struct atm_log log_entries[1 << LOG_N];
static uint32_t log_i;
static pthread_mutex_t log_mu;
static pthread_key_t key;
static pthread_once_t once = PTHREAD_ONCE_INIT;
static void do_once (void) {
pthread_mutex_init (&log_mu, NULL);
pthread_key_create (&key, NULL);
}
static int thread_id;
void nsync_atm_log_ (int c, void *p, uint32_t o, uint32_t n, const char *file, int line) {
if (NSYNC_ATM_LOG) {
struct atm_log *e;
uint32_t i;
int *pthd_id;
int thd_id;
pthread_once (&once, &do_once);
pthd_id = (int *) pthread_getspecific (key);
pthread_mutex_lock (&log_mu);
i = log_i++;
if (pthd_id == NULL) {
thd_id = thread_id++;
pthd_id = (int *) malloc (sizeof (*pthd_id));
pthread_setspecific (key, pthd_id);
*pthd_id = thd_id;
} else {
thd_id = *pthd_id;
}
pthread_mutex_unlock (&log_mu);
e = &log_entries[i & ((1 << LOG_N) - 1)];
e->i = i;
e->thd_id = thd_id;
e->c = c;
e->p = p;
e->o = o;
e->n = n;
e->file = file;
e->line = line;
}
}
void nsync_atm_log_print_ (void) {
if (NSYNC_ATM_LOG) {
uint32_t i;
pthread_once (&once, &do_once);
pthread_mutex_lock (&log_mu);
for (i = 0; i != (1 << LOG_N); i++) {
struct atm_log *e = &log_entries[i];
if (e->file != 0) {
fprintf (stderr, "%6lx %3d %c p %16p o %8x n %8x %10s:%d\n",
(unsigned long) e->i,
(int) e->thd_id,
e->c <= ' '? '?' : (char)e->c,
e->p,
(uint32_t) e->o,
(uint32_t) e->n,
e->file,
(int) e->line);
}
}
pthread_mutex_unlock (&log_mu);
}
}