mirror of
https://github.com/jart/cosmopolitan.git
synced 2024-05-12 08:32:40 +00:00
a4b455185b
Renaming gc() to _gc() was a mistake since the better thing to do is put it behind the _COSMO_SOURCE macro. We need this change because I haven't wanted to use my amazing garbage collector ever since we renamed it. You now need to define _COSMO_SOURCE yourself when using amalgamation header and cosmocc users need to pass the -mcosmo flag to get the gc() function Some other issues relating to cancelation have been fixed along the way. We're also now putting cosmocc in a folder named `.cosmocc` so it can be more safely excluded by grep --exclude-dir=.cosmocc --exclude-dir=o etc.
234 lines
8 KiB
C
234 lines
8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│ vi: set et 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/assert.h"
|
|
#include "libc/atomic.h"
|
|
#include "libc/calls/calls.h"
|
|
#include "libc/calls/state.internal.h"
|
|
#include "libc/errno.h"
|
|
#include "libc/intrin/strace.internal.h"
|
|
#include "libc/log/check.h"
|
|
#include "libc/macros.internal.h"
|
|
#include "libc/math.h"
|
|
#include "libc/mem/gc.h"
|
|
#include "libc/mem/mem.h"
|
|
#include "libc/runtime/internal.h"
|
|
#include "libc/runtime/runtime.h"
|
|
#include "libc/runtime/stack.h"
|
|
#include "libc/sysv/consts/clone.h"
|
|
#include "libc/sysv/consts/map.h"
|
|
#include "libc/sysv/consts/prot.h"
|
|
#include "libc/sysv/consts/rlimit.h"
|
|
#include "libc/testlib/ezbench.h"
|
|
#include "libc/testlib/testlib.h"
|
|
#include "libc/thread/thread.h"
|
|
#include "libc/thread/tls.h"
|
|
#include "third_party/nsync/mu.h"
|
|
|
|
#define THREADS 8
|
|
#define ITERATIONS 512
|
|
|
|
#define MAX_RECURSIVE_LOCKS 64
|
|
|
|
int count;
|
|
atomic_int started;
|
|
atomic_int finished;
|
|
pthread_mutex_t mylock;
|
|
pthread_spinlock_t slock;
|
|
pthread_t th[THREADS];
|
|
|
|
void SetUpOnce(void) {
|
|
ASSERT_SYS(0, 0, pledge("stdio rpath", 0));
|
|
}
|
|
|
|
TEST(pthread_mutex_lock, normal) {
|
|
pthread_mutex_t lock;
|
|
pthread_mutexattr_t attr;
|
|
ASSERT_EQ(0, pthread_mutexattr_init(&attr));
|
|
ASSERT_EQ(0, pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_NORMAL));
|
|
ASSERT_EQ(0, pthread_mutex_init(&lock, &attr));
|
|
ASSERT_EQ(0, pthread_mutexattr_destroy(&attr));
|
|
ASSERT_EQ(0, pthread_mutex_init(&lock, 0));
|
|
ASSERT_EQ(0, pthread_mutex_lock(&lock));
|
|
ASSERT_EQ(EBUSY, pthread_mutex_trylock(&lock));
|
|
ASSERT_EQ(0, pthread_mutex_unlock(&lock));
|
|
ASSERT_EQ(0, pthread_mutex_trylock(&lock));
|
|
ASSERT_EQ(0, pthread_mutex_unlock(&lock));
|
|
ASSERT_EQ(0, pthread_mutex_lock(&lock));
|
|
ASSERT_EQ(0, pthread_mutex_unlock(&lock));
|
|
ASSERT_EQ(0, pthread_mutex_destroy(&lock));
|
|
}
|
|
|
|
TEST(pthread_mutex_lock, recursive) {
|
|
pthread_mutex_t lock;
|
|
pthread_mutexattr_t attr;
|
|
ASSERT_EQ(0, pthread_mutexattr_init(&attr));
|
|
ASSERT_EQ(0, pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE));
|
|
ASSERT_EQ(0, pthread_mutex_init(&lock, &attr));
|
|
ASSERT_EQ(0, pthread_mutexattr_destroy(&attr));
|
|
for (int i = 0; i < MAX_RECURSIVE_LOCKS; ++i) {
|
|
if (i & 1) {
|
|
ASSERT_EQ(0, pthread_mutex_lock(&lock));
|
|
} else {
|
|
ASSERT_EQ(0, pthread_mutex_trylock(&lock));
|
|
}
|
|
}
|
|
ASSERT_EQ(EAGAIN, pthread_mutex_lock(&lock));
|
|
ASSERT_EQ(EAGAIN, pthread_mutex_trylock(&lock));
|
|
for (int i = 0; i < MAX_RECURSIVE_LOCKS; ++i) {
|
|
ASSERT_EQ(0, pthread_mutex_unlock(&lock));
|
|
}
|
|
ASSERT_EQ(0, pthread_mutex_lock(&lock));
|
|
ASSERT_EQ(0, pthread_mutex_unlock(&lock));
|
|
ASSERT_EQ(0, pthread_mutex_unlock(&lock));
|
|
ASSERT_EQ(0, pthread_mutex_destroy(&lock));
|
|
}
|
|
|
|
TEST(pthread_mutex_lock, errorcheck) {
|
|
pthread_mutex_t lock;
|
|
pthread_mutexattr_t attr;
|
|
ASSERT_EQ(0, pthread_mutexattr_init(&attr));
|
|
ASSERT_EQ(0, pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK));
|
|
ASSERT_EQ(0, pthread_mutex_init(&lock, &attr));
|
|
ASSERT_EQ(0, pthread_mutexattr_destroy(&attr));
|
|
ASSERT_EQ(0, pthread_mutex_lock(&lock));
|
|
ASSERT_EQ(EDEADLK, pthread_mutex_lock(&lock));
|
|
ASSERT_EQ(EDEADLK, pthread_mutex_trylock(&lock));
|
|
ASSERT_EQ(0, pthread_mutex_unlock(&lock));
|
|
ASSERT_EQ(0, pthread_mutex_destroy(&lock));
|
|
}
|
|
|
|
void *MutexWorker(void *p) {
|
|
int i;
|
|
++started;
|
|
for (i = 0; i < ITERATIONS; ++i) {
|
|
if (pthread_mutex_lock(&mylock)) {
|
|
ASSERT_EQ(0, pthread_mutex_lock(&mylock));
|
|
}
|
|
++count;
|
|
ASSERT_EQ(0, pthread_mutex_unlock(&mylock));
|
|
}
|
|
++finished;
|
|
return 0;
|
|
}
|
|
|
|
TEST(pthread_mutex_lock, contention) {
|
|
int i;
|
|
pthread_mutexattr_t attr;
|
|
pthread_mutexattr_init(&attr);
|
|
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_NORMAL);
|
|
pthread_mutex_init(&mylock, &attr);
|
|
pthread_mutexattr_destroy(&attr);
|
|
count = 0;
|
|
started = 0;
|
|
finished = 0;
|
|
for (i = 0; i < THREADS; ++i) {
|
|
ASSERT_SYS(0, 0,
|
|
pthread_create(th + i, 0, MutexWorker, (void *)(intptr_t)i));
|
|
}
|
|
for (i = 0; i < THREADS; ++i) {
|
|
ASSERT_SYS(0, 0, pthread_join(th[i], 0));
|
|
}
|
|
EXPECT_EQ(THREADS, started);
|
|
EXPECT_EQ(THREADS, finished);
|
|
EXPECT_EQ(THREADS * ITERATIONS, count);
|
|
EXPECT_EQ(0, pthread_mutex_destroy(&mylock));
|
|
}
|
|
|
|
TEST(pthread_mutex_lock, rcontention) {
|
|
int i;
|
|
pthread_mutexattr_t attr;
|
|
pthread_mutexattr_init(&attr);
|
|
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
|
|
pthread_mutex_init(&mylock, &attr);
|
|
pthread_mutexattr_destroy(&attr);
|
|
count = 0;
|
|
started = 0;
|
|
finished = 0;
|
|
for (i = 0; i < THREADS; ++i) {
|
|
ASSERT_EQ(0, pthread_create(th + i, 0, MutexWorker, (void *)(intptr_t)i));
|
|
}
|
|
for (i = 0; i < THREADS; ++i) {
|
|
ASSERT_EQ(0, pthread_join(th[i], 0));
|
|
}
|
|
EXPECT_EQ(THREADS, started);
|
|
EXPECT_EQ(THREADS, finished);
|
|
EXPECT_EQ(THREADS * ITERATIONS, count);
|
|
EXPECT_EQ(0, pthread_mutex_destroy(&mylock));
|
|
}
|
|
|
|
TEST(pthread_mutex_lock, econtention) {
|
|
int i;
|
|
pthread_mutexattr_t attr;
|
|
pthread_mutexattr_init(&attr);
|
|
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
|
|
pthread_mutex_init(&mylock, &attr);
|
|
pthread_mutexattr_destroy(&attr);
|
|
count = 0;
|
|
started = 0;
|
|
finished = 0;
|
|
for (i = 0; i < THREADS; ++i) {
|
|
ASSERT_NE(-1, pthread_create(th + i, 0, MutexWorker, (void *)(intptr_t)i));
|
|
}
|
|
for (i = 0; i < THREADS; ++i) {
|
|
pthread_join(th[i], 0);
|
|
}
|
|
EXPECT_EQ(THREADS, started);
|
|
EXPECT_EQ(THREADS, finished);
|
|
EXPECT_EQ(THREADS * ITERATIONS, count);
|
|
EXPECT_EQ(0, pthread_mutex_destroy(&mylock));
|
|
}
|
|
|
|
void *SpinlockWorker(void *p) {
|
|
int i;
|
|
++started;
|
|
for (i = 0; i < ITERATIONS; ++i) {
|
|
pthread_spin_lock(&slock);
|
|
++count;
|
|
pthread_spin_unlock(&slock);
|
|
}
|
|
++finished;
|
|
STRACE("SpinlockWorker Finished %d", gettid());
|
|
return 0;
|
|
}
|
|
|
|
TEST(pthread_spin_lock, test) {
|
|
int i;
|
|
count = 0;
|
|
started = 0;
|
|
finished = 0;
|
|
EXPECT_EQ(0, pthread_spin_init(&slock, 0));
|
|
EXPECT_EQ(0, pthread_spin_trylock(&slock));
|
|
EXPECT_EQ(EBUSY, pthread_spin_trylock(&slock));
|
|
EXPECT_EQ(0, pthread_spin_unlock(&slock));
|
|
EXPECT_EQ(0, pthread_spin_lock(&slock));
|
|
EXPECT_EQ(EBUSY, pthread_spin_trylock(&slock));
|
|
EXPECT_EQ(0, pthread_spin_unlock(&slock));
|
|
for (i = 0; i < THREADS; ++i) {
|
|
ASSERT_EQ(0,
|
|
pthread_create(th + i, 0, SpinlockWorker, (void *)(intptr_t)i));
|
|
}
|
|
for (i = 0; i < THREADS; ++i) {
|
|
ASSERT_EQ(0, pthread_join(th[i], 0));
|
|
}
|
|
EXPECT_EQ(THREADS, started);
|
|
EXPECT_EQ(THREADS, finished);
|
|
EXPECT_EQ(THREADS * ITERATIONS, count);
|
|
EXPECT_EQ(0, pthread_spin_destroy(&slock));
|
|
}
|