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-rw-r--r--src/internal/futex.h3
-rw-r--r--src/internal/pthread_impl.h3
-rw-r--r--src/thread/__timedwait.c53
-rw-r--r--src/thread/__timedwait_cp.c23
-rw-r--r--src/thread/pthread_cond_timedwait.c7
-rw-r--r--src/thread/pthread_join.c6
-rw-r--r--src/thread/pthread_mutex_timedlock.c2
-rw-r--r--src/thread/pthread_rwlock_timedrdlock.c2
-rw-r--r--src/thread/pthread_rwlock_timedwrlock.c2
-rw-r--r--src/thread/sem_timedwait.c8
10 files changed, 56 insertions, 53 deletions
diff --git a/src/internal/futex.h b/src/internal/futex.h
index c0453822..d7bf2b7d 100644
--- a/src/internal/futex.h
+++ b/src/internal/futex.h
@@ -10,6 +10,9 @@
#define FUTEX_LOCK_PI 6
#define FUTEX_UNLOCK_PI 7
#define FUTEX_TRYLOCK_PI 8
+#define FUTEX_WAIT_BITSET 9
+
+#define FUTEX_CLOCK_REALTIME 256
int __futex(volatile int *, int, int, void *);
diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
index 03af4c12..c11840d6 100644
--- a/src/internal/pthread_impl.h
+++ b/src/internal/pthread_impl.h
@@ -95,8 +95,7 @@ int __libc_sigprocmask(int, const sigset_t *, sigset_t *);
void __lock(volatile int *);
void __unmapself(void *, size_t);
-int __timedwait(volatile int *, int, clockid_t, const struct timespec *, int);
-int __timedwait_cp(volatile int *, int, clockid_t, const struct timespec *, int);
+int __timedwait(volatile int *, int, clockid_t, const struct timespec *, void (*)(void *), void *, int);
void __wait(volatile int *, volatile int *, int, int);
void __wake(volatile int *, int, int);
diff --git a/src/thread/__timedwait.c b/src/thread/__timedwait.c
index b1d3af23..931675eb 100644
--- a/src/thread/__timedwait.c
+++ b/src/thread/__timedwait.c
@@ -1,23 +1,48 @@
+#include <pthread.h>
#include <time.h>
#include <errno.h>
#include "futex.h"
#include "syscall.h"
-int __timedwait(volatile int *addr, int val, clockid_t clk, const struct timespec *at, int priv)
+static int do_wait(volatile int *addr, int val, clockid_t clk, const struct timespec *at, int cp, int priv)
{
- int r;
- struct timespec to;
- if (at) {
- clock_gettime(clk, &to);
- to.tv_sec = at->tv_sec - to.tv_sec;
- if ((to.tv_nsec = at->tv_nsec - to.tv_nsec) < 0) {
- to.tv_sec--;
- to.tv_nsec += 1000000000;
- }
- if (to.tv_sec < 0) return ETIMEDOUT;
+ int r, flag = 0;
+ struct timespec to, *top=0;
+
+ if (!at) goto notimeout;
+ if (at->tv_nsec >= 1000000000UL)
+ return EINVAL;
+ if (clk == CLOCK_REALTIME || clk == CLOCK_MONOTONIC) {
+ if (clk == CLOCK_REALTIME) flag = FUTEX_CLOCK_REALTIME;
+ if (cp) r = -__syscall_cp(SYS_futex, addr, FUTEX_WAIT_BITSET|flag, val, at, 0, -1);
+ else r = -__syscall(SYS_futex, addr, FUTEX_WAIT_BITSET|flag, val, at, 0, -1);
+ if (r != ENOSYS) goto done;
}
- if (priv) priv = 128; priv=0;
- r = -__syscall(SYS_futex, (long)addr, FUTEX_WAIT | priv, val, at ? (long)&to : 0);
- if (r == ETIMEDOUT || r == EINTR) return r;
+ if (clock_gettime(clk, &to)) return EINVAL;
+ to.tv_sec = at->tv_sec - to.tv_sec;
+ if ((to.tv_nsec = at->tv_nsec - to.tv_nsec) < 0) {
+ to.tv_sec--;
+ to.tv_nsec += 1000000000;
+ }
+ if (to.tv_sec < 0) return ETIMEDOUT;
+ top = &to;
+notimeout:
+ if (cp) r = -__syscall_cp(SYS_futex, addr, FUTEX_WAIT, val, top);
+ else r = -__syscall(SYS_futex, addr, FUTEX_WAIT, val, top);
+done:
+ if (r == EINTR || r == EINVAL || r == ETIMEDOUT) return r;
return 0;
}
+
+int __timedwait(volatile int *addr, int val, clockid_t clk, const struct timespec *at, void (*cleanup)(void *), void *arg, int priv)
+{
+ int r;
+ if (cleanup) {
+ pthread_cleanup_push(cleanup, arg);
+ r = do_wait(addr, val, clk, at, 1, priv);
+ pthread_cleanup_pop(0);
+ } else {
+ r = do_wait(addr, val, clk, at, 0, priv);
+ }
+ return r;
+}
diff --git a/src/thread/__timedwait_cp.c b/src/thread/__timedwait_cp.c
deleted file mode 100644
index c2890985..00000000
--- a/src/thread/__timedwait_cp.c
+++ /dev/null
@@ -1,23 +0,0 @@
-#include <time.h>
-#include <errno.h>
-#include "futex.h"
-#include "syscall.h"
-
-int __timedwait_cp(volatile int *addr, int val, clockid_t clk, const struct timespec *at, int priv)
-{
- int r;
- struct timespec to;
- if (at) {
- clock_gettime(clk, &to);
- to.tv_sec = at->tv_sec - to.tv_sec;
- if ((to.tv_nsec = at->tv_nsec - to.tv_nsec) < 0) {
- to.tv_sec--;
- to.tv_nsec += 1000000000;
- }
- if (to.tv_sec < 0) return ETIMEDOUT;
- }
- if (priv) priv = 128; priv=0;
- r = -__syscall_cp(SYS_futex, (long)addr, FUTEX_WAIT | priv, val, at ? (long)&to : 0);
- if (r == ETIMEDOUT || r == EINTR) return r;
- return 0;
-}
diff --git a/src/thread/pthread_cond_timedwait.c b/src/thread/pthread_cond_timedwait.c
index 13728282..ee874a36 100644
--- a/src/thread/pthread_cond_timedwait.c
+++ b/src/thread/pthread_cond_timedwait.c
@@ -9,16 +9,17 @@ int pthread_cond_timedwait(pthread_cond_t *c, pthread_mutex_t *m, const struct t
{
int r, e=0;
+ if (ts && ts->tv_nsec >= 1000000000UL)
+ return EINVAL;
+
pthread_testcancel();
- pthread_cleanup_push(relock, m);
c->_c_block = 1;
if ((r=pthread_mutex_unlock(m))) return r;
- do e = __timedwait_cp(&c->_c_block, 1, c->_c_clock, ts, 0);
+ do e = __timedwait(&c->_c_block, 1, c->_c_clock, ts, relock, m, 0);
while (e == EINTR);
- pthread_cleanup_pop(0);
if ((r=pthread_mutex_lock(m))) return r;
pthread_testcancel();
diff --git a/src/thread/pthread_join.c b/src/thread/pthread_join.c
index ba7bb7d5..664abda9 100644
--- a/src/thread/pthread_join.c
+++ b/src/thread/pthread_join.c
@@ -1,9 +1,13 @@
#include "pthread_impl.h"
+static void dummy(void *p)
+{
+}
+
int pthread_join(pthread_t t, void **res)
{
int tmp = t->tid;
- if (tmp) __timedwait_cp(&t->tid, tmp, 0, 0, 1);
+ if (tmp) __timedwait(&t->tid, tmp, 0, 0, dummy, 0, 1);
if (res) *res = t->result;
if (t->map_base) munmap(t->map_base, t->map_size);
return 0;
diff --git a/src/thread/pthread_mutex_timedlock.c b/src/thread/pthread_mutex_timedlock.c
index ae1e2c31..44bd4bbe 100644
--- a/src/thread/pthread_mutex_timedlock.c
+++ b/src/thread/pthread_mutex_timedlock.c
@@ -16,7 +16,7 @@ int pthread_mutex_timedlock(pthread_mutex_t *m, const struct timespec *at)
a_inc(&m->_m_waiters);
t = r | 0x80000000;
a_cas(&m->_m_lock, r, t);
- r = __timedwait(&m->_m_lock, t, CLOCK_REALTIME, at, 0);
+ r = __timedwait(&m->_m_lock, t, CLOCK_REALTIME, at, 0, 0, 0);
a_dec(&m->_m_waiters);
if (r && r != EINTR) break;
}
diff --git a/src/thread/pthread_rwlock_timedrdlock.c b/src/thread/pthread_rwlock_timedrdlock.c
index 1e76a8e1..a6f61b05 100644
--- a/src/thread/pthread_rwlock_timedrdlock.c
+++ b/src/thread/pthread_rwlock_timedrdlock.c
@@ -5,7 +5,7 @@ int pthread_rwlock_timedrdlock(pthread_rwlock_t *rw, const struct timespec *at)
int w=0;
while (pthread_rwlock_tryrdlock(rw)) {
if (!w) a_inc(&rw->_rw_waiters), w++;
- if (__timedwait(&rw->_rw_wrlock, 1, CLOCK_REALTIME, at, 0)==ETIMEDOUT) {
+ if (__timedwait(&rw->_rw_wrlock, 1, CLOCK_REALTIME, at, 0, 0, 0)==ETIMEDOUT) {
if (w) a_dec(&rw->_rw_waiters);
return ETIMEDOUT;
}
diff --git a/src/thread/pthread_rwlock_timedwrlock.c b/src/thread/pthread_rwlock_timedwrlock.c
index 96827749..484808e8 100644
--- a/src/thread/pthread_rwlock_timedwrlock.c
+++ b/src/thread/pthread_rwlock_timedwrlock.c
@@ -7,7 +7,7 @@ int pthread_rwlock_timedwrlock(pthread_rwlock_t *rw, const struct timespec *at)
if (!w) a_inc(&rw->_rw_waiters), w++;
if ((nr=rw->_rw_readers)) p = &rw->_rw_readers;
else nr=1, p = &rw->_rw_wrlock;
- if (__timedwait(p, nr, CLOCK_REALTIME, at, 0)==ETIMEDOUT) {
+ if (__timedwait(p, nr, CLOCK_REALTIME, at, 0, 0, 0)==ETIMEDOUT) {
if (w) a_dec(&rw->_rw_waiters);
return ETIMEDOUT;
}
diff --git a/src/thread/sem_timedwait.c b/src/thread/sem_timedwait.c
index 1d4b3e2c..4e12389c 100644
--- a/src/thread/sem_timedwait.c
+++ b/src/thread/sem_timedwait.c
@@ -10,15 +10,9 @@ int sem_timedwait(sem_t *sem, const struct timespec *at)
{
while (sem_trywait(sem)) {
int r;
- if (at && at->tv_nsec >= 1000000000UL) {
- errno = EINVAL;
- return -1;
- }
a_inc(sem->__val+1);
a_cas(sem->__val, 0, -1);
- pthread_cleanup_push(cleanup, sem->__val+1);
- r = __timedwait_cp(sem->__val, -1, CLOCK_REALTIME, at, 0);
- pthread_cleanup_pop(1);
+ r = __timedwait(sem->__val, -1, CLOCK_REALTIME, at, cleanup, sem->__val+1, 0);
if (r) {
errno = r;
return -1;
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-14 02:44:12 +0000