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Improve pthread_join()

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Since we're now on Windows 8, we can have clone() work as advertised on
Windows, where it sends a futex wake to the child tid. It's also likely
we no longer need to work around thread flakes on OpenBSD, in _wait0().
This commit is contained in:
Justine Tunney 2022-09-16 14:02:06 -07:00
parent 3733b43a8f
commit 994e1f4386
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GPG key ID: BE714B4575D6E328
19 changed files with 154 additions and 74 deletions
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4
test/libc/intrin/lockscale_test.c
View file

@ -81,7 +81,7 @@ BENCH(lock, scalability) {
pthread_barrier_destroy(&barrier);
pthread_mutex_destroy(&lock);
t2 = _timespec_real();
printf("consumed %10g seconds monotonic time and %10g seconds cpu time\n",
_timespec_tonanos(_timespec_sub(t2, t1)) / 1000000000.,
printf("consumed %10g seconds real time and %10g seconds cpu time\n",
_timespec_tonanos(_timespec_sub(t2, t1)) / 1e9,
(double)clock() / CLOCKS_PER_SEC);
}

13
test/libc/intrin/rand64_test.c
View file

@ -18,29 +18,18 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/sigset.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/atomic.h"
#include "libc/limits.h"
#include "libc/macros.internal.h"
#include "libc/mem/mem.h"
#include "libc/runtime/internal.h"
#include "libc/runtime/stack.h"
#include "libc/stdio/rand.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/clone.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/prot.h"
#include "libc/sysv/consts/sa.h"
#include "libc/sysv/consts/sig.h"
#include "libc/testlib/testlib.h"
#include "libc/thread/spawn.h"
#include "libc/thread/thread.h"
#include "libc/time/time.h"
#define THREADS 8
#define ENTRIES 1024
#define ENTRIES 100
volatile uint64_t A[THREADS * ENTRIES];
pthread_barrier_t barrier;

5
test/libc/thread/pthread_create_test.c
View file

@ -54,11 +54,16 @@ void TriggerSignal(void) {
}
static void *Increment(void *arg) {
ASSERT_EQ(EDEADLK, pthread_join(pthread_self(), 0));
ASSERT_EQ(gettid(), pthread_getthreadid_np());
TriggerSignal();
return (void *)((uintptr_t)arg + 1);
}
TEST(pthread_create, joinSelfDeadlocks) {
ASSERT_EQ(EDEADLK, pthread_join(pthread_self(), 0));
}
TEST(pthread_create, testCreateReturnJoin) {
void *rc;
pthread_t id;