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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2020-05-26 00:09:11 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2020-05-26 00:46:07 +0000
commit28cada041811fe49c8da1eb7ffdbc949719f9009 (patch)
tree8b90e7057ebc557a755e0ceb665e037c6fbb58a6 /sysdeps/htl
parent02802fafcf6e11ea3f998f685035ffe568dfddeb (diff)
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htl: Add clock variants
* htl/pt-join.c (__pthread_join): Move implementation to...
(__pthread_join_common): ... new function. Add try, timed and clock support.
(__pthread_join): Reimplement on top of __pthread_join_common.
(__pthread_tryjoin_np, __pthread_timedjoin_np, __pthread_clockjoin_np):
Implement on top of __pthread_join_common.
(pthread_tryjoin_np, pthread_timedjoin_np, pthread_clockjoin_np): New
aliases.

* hurd/hurdlock.c (__lll_abstimed_wait, __lll_abstimed_xwait,
__lll_abstimed_lock): Check for supported clock.

* sysdeps/htl/pt-cond-timedwait.c (__pthread_cond_timedwait_internal):
Add clockid parameter and support it.
(__pthread_cond_timedwait): Pass -1 as clockid.
(__pthread_cond_clockwait): New function.
(pthread_cond_clockwait): New alias.
* sysdeps/htl/pt-cond-wait.c (__pthread_cond_timedwait_internal): Update
prototype.
(__pthread_cond_wait): Pass -1 as clockid.

* sysdeps/htl/pt-rwlock-timedrdlock.c
(__pthread_rwlock_timedrdlock_internal): Add clockid parameter, and
support id.
(__pthread_rwlock_clockrdlock): New function.
(pthread_rwlock_clockrdlock): New alias.
* sysdeps/htl/pt-rwlock-rdlock.c (__pthread_rwlock_timedrdlock_internal): Update
prototype.
(__pthread_rwlock_rdlock): Pass -1 as clockid.

* sysdeps/htl/pt-rwlock-timedwrlock.c
(__pthread_rwlock_timedwrlock_internal): Add clockid parameter, and
support id.
(__pthread_rwlock_clockwrlock): New function.
(pthread_rwlock_clockwrlock): New alias.
* sysdeps/htl/pt-rwlock-wrlock.c (__pthread_rwlock_timedwrlock_internal): Update
prototype.
(__pthread_rwlock_wrlock): Pass -1 as clockid.

* sysdeps/mach/hurd/htl/pt-mutex-timedlock.c (__pthread_mutex_timedlock): Move implementation to
(__pthread_mutex_clocklock): New function with additional clockid
parameter and support it.
(pthread_mutex_clocklock): New alias.
(__pthread_mutex_timedlock): Reimplement on top of __pthread_mutex_clocklock.

* sysdeps/htl/pthread.h (pthread_tryjoin_np, pthread_timedjoin_np,
pthread_clockjoin_np, pthread_mutex_clocklock, pthread_cond_clockwait,
pthread_rwlock_clockrdlock, pthread_rwlock_clockwrlock): New prototypes.
* sysdeps/htl/pthreadP.h (__pthread_cond_clockwait): New prototype.

* htl/Versions (GLIBC_2.32): Add pthread_cond_clockwait,
pthread_mutex_clocklock, pthread_rwlock_clockrdlock, pthread_rwlock_clockwrlock,
pthread_tryjoin_np, pthread_timedjoin_np, pthread_clockjoin_np.
* sysdeps/mach/hurd/i386/libpthread.abilist (pthread_clockjoin_np,
pthread_cond_clockwait, pthread_mutex_clocklock, pthread_rwlock_clockrdlock,
pthread_rwlock_clockwrlock, pthread_timedjoin_np, pthread_tryjoin_np):
New functions.

* nptl/tst-abstime.c, nptl/tst-join10.c, nptl/tst-join11.c, nptl/tst-join12.c,
nptl/tst-join13.c, nptl/tst-join14.c, nptl/tst-join2.c, nptl/tst-join3.c,
nptl/tst-join8.c, nptl/tst-join9.c, nptl/tst-mutex-errorcheck.c,
nptl/tst-pthread-mutexattr.c, nptl/tst-mutex11.c, nptl/tst-mutex5.c,
nptl/tst-mutex7.c, nptl/tst-mutex7robus.c, nptl/tst-mutex9.c,
nptl/tst-rwlock12.c, nptl/tst-rwlock14.c: Move to sysdeps/pthread.
* sysdeps/pthread/tst-mutex8.c: Move back to nptl.
* nptl/Makefile (tests): Move tst-mutex5, tst-mutex7, tst-mutex7robust,
tst-mutex9, tst-mutex11, tst-rwlock12, tst-rwlock14, tst-join2, tst-join3,
tst-join8, tst-join9 tst-join10, tst-join11, tst-join12, tst-join13, tst-join14,
tst-abstime, tst-mutex-errorcheck, tst-pthread-mutexattr to ...
* sysdeps/pthread/Makefile (tests): ... here.
Diffstat (limited to 'sysdeps/htl')
-rw-r--r--sysdeps/htl/pt-cond-timedwait.c24
-rw-r--r--sysdeps/htl/pt-cond-wait.c3
-rw-r--r--sysdeps/htl/pt-rwlock-rdlock.c3
-rw-r--r--sysdeps/htl/pt-rwlock-timedrdlock.c19
-rw-r--r--sysdeps/htl/pt-rwlock-timedwrlock.c19
-rw-r--r--sysdeps/htl/pt-rwlock-wrlock.c3
-rw-r--r--sysdeps/htl/pthread.h62
-rw-r--r--sysdeps/htl/pthreadP.h5
8 files changed, 126 insertions, 12 deletions
diff --git a/sysdeps/htl/pt-cond-timedwait.c b/sysdeps/htl/pt-cond-timedwait.c
index d27f7ba8d6..a0ced9a074 100644
--- a/sysdeps/htl/pt-cond-timedwait.c
+++ b/sysdeps/htl/pt-cond-timedwait.c
@@ -24,6 +24,7 @@
 
 extern int __pthread_cond_timedwait_internal (pthread_cond_t *cond,
 					      pthread_mutex_t *mutex,
+					      clockid_t clockid,
 					      const struct timespec *abstime);
 
 int
@@ -31,11 +32,22 @@ __pthread_cond_timedwait (pthread_cond_t *cond,
 			  pthread_mutex_t *mutex,
 			  const struct timespec *abstime)
 {
-  return __pthread_cond_timedwait_internal (cond, mutex, abstime);
+  return __pthread_cond_timedwait_internal (cond, mutex, -1, abstime);
 }
 
 weak_alias (__pthread_cond_timedwait, pthread_cond_timedwait);
 
+int
+__pthread_cond_clockwait (pthread_cond_t *cond,
+			  pthread_mutex_t *mutex,
+			  clockid_t clockid,
+			  const struct timespec *abstime)
+{
+  return __pthread_cond_timedwait_internal (cond, mutex, clockid, abstime);
+}
+
+weak_alias (__pthread_cond_clockwait, pthread_cond_clockwait);
+
 struct cancel_ctx
 {
   struct __pthread *wakeup;
@@ -69,11 +81,17 @@ cancel_hook (void *arg)
 int
 __pthread_cond_timedwait_internal (pthread_cond_t *cond,
 				   pthread_mutex_t *mutex,
+				   clockid_t clockid,
 				   const struct timespec *abstime)
 {
   error_t err;
   int cancelled, oldtype, drain;
-  clockid_t clock_id = __pthread_default_condattr.__clock;
+  clockid_t clock_id;
+
+  if (clockid != -1)
+    clock_id = clockid;
+  else
+    clock_id = __pthread_default_condattr.__clock;
 
   if (abstime && ! valid_nanoseconds (abstime->tv_nsec))
     return EINVAL;
@@ -114,7 +132,7 @@ __pthread_cond_timedwait_internal (pthread_cond_t *cond,
          already unblocked, progressing on the return path.  */
       __pthread_spin_wait (&cond->__lock);
       __pthread_enqueue (&cond->__queue, self);
-      if (cond->__attr != NULL)
+      if (cond->__attr != NULL && clockid == -1)
 	clock_id = cond->__attr->__clock;
       __pthread_spin_unlock (&cond->__lock);
     }
diff --git a/sysdeps/htl/pt-cond-wait.c b/sysdeps/htl/pt-cond-wait.c
index 2e87db0ca6..00a6922659 100644
--- a/sysdeps/htl/pt-cond-wait.c
+++ b/sysdeps/htl/pt-cond-wait.c
@@ -23,6 +23,7 @@
 /* Implemented in pt-cond-timedwait.c.  */
 extern int __pthread_cond_timedwait_internal (pthread_cond_t *cond,
 					      pthread_mutex_t *mutex,
+					      clockid_t clockid,
 					      const struct timespec *abstime);
 
 
@@ -32,7 +33,7 @@ extern int __pthread_cond_timedwait_internal (pthread_cond_t *cond,
 int
 __pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex)
 {
-  return __pthread_cond_timedwait_internal (cond, mutex, 0);
+  return __pthread_cond_timedwait_internal (cond, mutex, -1, 0);
 }
 
 weak_alias (__pthread_cond_wait, pthread_cond_wait);
diff --git a/sysdeps/htl/pt-rwlock-rdlock.c b/sysdeps/htl/pt-rwlock-rdlock.c
index 07aa119cbc..6588f01f80 100644
--- a/sysdeps/htl/pt-rwlock-rdlock.c
+++ b/sysdeps/htl/pt-rwlock-rdlock.c
@@ -22,6 +22,7 @@
 /* Implemented in pt-rwlock-timedrdlock.c.  */
 extern int __pthread_rwlock_timedrdlock_internal (struct __pthread_rwlock
 						  *rwlock,
+						  clockid_t clockid,
 						  const struct timespec
 						  *abstime);
 
@@ -29,6 +30,6 @@ extern int __pthread_rwlock_timedrdlock_internal (struct __pthread_rwlock
 int
 __pthread_rwlock_rdlock (struct __pthread_rwlock *rwlock)
 {
-  return __pthread_rwlock_timedrdlock_internal (rwlock, 0);
+  return __pthread_rwlock_timedrdlock_internal (rwlock, -1, 0);
 }
 weak_alias (__pthread_rwlock_rdlock, pthread_rwlock_rdlock);
diff --git a/sysdeps/htl/pt-rwlock-timedrdlock.c b/sysdeps/htl/pt-rwlock-timedrdlock.c
index c2827662fd..7019085489 100644
--- a/sysdeps/htl/pt-rwlock-timedrdlock.c
+++ b/sysdeps/htl/pt-rwlock-timedrdlock.c
@@ -27,6 +27,7 @@
    wait forever.  */
 int
 __pthread_rwlock_timedrdlock_internal (struct __pthread_rwlock *rwlock,
+				       clockid_t clockid,
 				       const struct timespec *abstime)
 {
   error_t err;
@@ -62,7 +63,10 @@ __pthread_rwlock_timedrdlock_internal (struct __pthread_rwlock *rwlock,
   assert (rwlock->__readers == 0);
 
   if (abstime != NULL && ! valid_nanoseconds (abstime->tv_nsec))
-    return EINVAL;
+    {
+      __pthread_spin_unlock (&rwlock->__lock);
+      return EINVAL;
+    }
 
   self = _pthread_self ();
 
@@ -72,7 +76,7 @@ __pthread_rwlock_timedrdlock_internal (struct __pthread_rwlock *rwlock,
 
   /* Block the thread.  */
   if (abstime != NULL)
-    err = __pthread_timedblock (self, abstime, CLOCK_REALTIME);
+    err = __pthread_timedblock (self, abstime, clockid);
   else
     {
       err = 0;
@@ -116,6 +120,15 @@ int
 __pthread_rwlock_timedrdlock (struct __pthread_rwlock *rwlock,
 			      const struct timespec *abstime)
 {
-  return __pthread_rwlock_timedrdlock_internal (rwlock, abstime);
+  return __pthread_rwlock_timedrdlock_internal (rwlock, CLOCK_REALTIME, abstime);
 }
 weak_alias (__pthread_rwlock_timedrdlock, pthread_rwlock_timedrdlock)
+
+int
+__pthread_rwlock_clockrdlock (struct __pthread_rwlock *rwlock,
+			      clockid_t clockid,
+			      const struct timespec *abstime)
+{
+  return __pthread_rwlock_timedrdlock_internal (rwlock, clockid, abstime);
+}
+weak_alias (__pthread_rwlock_clockrdlock, pthread_rwlock_clockrdlock)
diff --git a/sysdeps/htl/pt-rwlock-timedwrlock.c b/sysdeps/htl/pt-rwlock-timedwrlock.c
index d0293c1e96..e9f8da07db 100644
--- a/sysdeps/htl/pt-rwlock-timedwrlock.c
+++ b/sysdeps/htl/pt-rwlock-timedwrlock.c
@@ -27,6 +27,7 @@
    shall not time out.  */
 int
 __pthread_rwlock_timedwrlock_internal (struct __pthread_rwlock *rwlock,
+				       clockid_t clockid,
 				       const struct timespec *abstime)
 {
   error_t err;
@@ -48,7 +49,10 @@ __pthread_rwlock_timedwrlock_internal (struct __pthread_rwlock *rwlock,
   /* The lock is busy.  */
 
   if (abstime != NULL && ! valid_nanoseconds (abstime->tv_nsec))
-    return EINVAL;
+    {
+      __pthread_spin_unlock (&rwlock->__lock);
+      return EINVAL;
+    }
 
   self = _pthread_self ();
 
@@ -58,7 +62,7 @@ __pthread_rwlock_timedwrlock_internal (struct __pthread_rwlock *rwlock,
 
   /* Block the thread.  */
   if (abstime != NULL)
-    err = __pthread_timedblock (self, abstime, CLOCK_REALTIME);
+    err = __pthread_timedblock (self, abstime, clockid);
   else
     {
       err = 0;
@@ -99,6 +103,15 @@ int
 __pthread_rwlock_timedwrlock (struct __pthread_rwlock *rwlock,
 			      const struct timespec *abstime)
 {
-  return __pthread_rwlock_timedwrlock_internal (rwlock, abstime);
+  return __pthread_rwlock_timedwrlock_internal (rwlock, CLOCK_REALTIME, abstime);
 }
 weak_alias (__pthread_rwlock_timedwrlock, pthread_rwlock_timedwrlock)
+
+int
+__pthread_rwlock_clockwrlock (struct __pthread_rwlock *rwlock,
+			      clockid_t clockid,
+			      const struct timespec *abstime)
+{
+  return __pthread_rwlock_timedwrlock_internal (rwlock, clockid, abstime);
+}
+weak_alias (__pthread_rwlock_clockwrlock, pthread_rwlock_clockwrlock)
diff --git a/sysdeps/htl/pt-rwlock-wrlock.c b/sysdeps/htl/pt-rwlock-wrlock.c
index dcf09d98c7..c3e9c64051 100644
--- a/sysdeps/htl/pt-rwlock-wrlock.c
+++ b/sysdeps/htl/pt-rwlock-wrlock.c
@@ -24,6 +24,7 @@
 /* Implemented in pt-rwlock-timedwrlock.c.  */
 extern int __pthread_rwlock_timedwrlock_internal (struct __pthread_rwlock
 						  *rwlock,
+						  clockid_t clockid,
 						  const struct timespec
 						  *abstime);
 
@@ -31,6 +32,6 @@ extern int __pthread_rwlock_timedwrlock_internal (struct __pthread_rwlock
 int
 __pthread_rwlock_wrlock (struct __pthread_rwlock *rwlock)
 {
-  return __pthread_rwlock_timedwrlock_internal (rwlock, 0);
+  return __pthread_rwlock_timedwrlock_internal (rwlock, -1, 0);
 }
 weak_alias (__pthread_rwlock_wrlock, pthread_rwlock_wrlock);
diff --git a/sysdeps/htl/pthread.h b/sysdeps/htl/pthread.h
index d639385eb3..c44f70b158 100644
--- a/sysdeps/htl/pthread.h
+++ b/sysdeps/htl/pthread.h
@@ -222,6 +222,32 @@ extern void pthread_exit (void *__status) __attribute__ ((__noreturn__));
    the exit status of the thread in *STATUS.  */
 extern int pthread_join (pthread_t __threadp, void **__status);
 
+#ifdef __USE_GNU
+/* Check whether thread TH has terminated.  If yes return the status of
+   the thread in *THREAD_RETURN, if THREAD_RETURN is not NULL.  */
+extern int pthread_tryjoin_np (pthread_t __th, void **__thread_return) __THROW;
+
+/* Make calling thread wait for termination of the thread TH, but only
+   until TIMEOUT.  The exit status of the thread is stored in
+   *THREAD_RETURN, if THREAD_RETURN is not NULL.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int pthread_timedjoin_np (pthread_t __th, void **__thread_return,
+				 const struct timespec *__abstime);
+
+/* Make calling thread wait for termination of the thread TH, but only
+   until TIMEOUT measured against the clock specified by CLOCKID.  The
+   exit status of the thread is stored in *THREAD_RETURN, if
+   THREAD_RETURN is not NULL.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int pthread_clockjoin_np (pthread_t __th, void **__thread_return,
+                                 clockid_t __clockid,
+				 const struct timespec *__abstime);
+#endif
+
 /* Indicate that the storage for THREAD can be reclaimed when it
    terminates.  */
 extern int pthread_detach (pthread_t __threadp);
@@ -401,6 +427,13 @@ extern int pthread_mutex_timedlock (struct __pthread_mutex *__restrict __mutex,
 	__THROWNL __nonnull ((1, 2));
 #endif
 
+#ifdef __USE_GNU
+extern int pthread_mutex_clocklock (pthread_mutex_t *__restrict __mutex,
+				    clockid_t __clockid,
+				    const struct timespec *__restrict
+				    __abstime) __THROWNL __nonnull ((1, 3));
+#endif
+
 /* Unlock MUTEX.  */
 extern int pthread_mutex_unlock (pthread_mutex_t *__mutex)
 	__THROWNL __nonnull ((1));
@@ -517,6 +550,21 @@ extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond,
 				   pthread_mutex_t *__restrict __mutex,
 				   __const struct timespec *__restrict __abstime)
 	 __nonnull ((1, 2, 3));
+
+# ifdef __USE_GNU
+/* Wait for condition variable COND to be signaled or broadcast until
+   ABSTIME measured by the specified clock. MUTEX is assumed to be
+   locked before. CLOCK is the clock to use. ABSTIME is an absolute
+   time specification against CLOCK's epoch.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW. */
+extern int pthread_cond_clockwait (pthread_cond_t *__restrict __cond,
+				   pthread_mutex_t *__restrict __mutex,
+				   __clockid_t __clock_id,
+				   const struct timespec *__restrict __abstime)
+     __nonnull ((1, 2, 4));
+# endif
 
 
 /* Spin locks.  */
@@ -623,6 +671,13 @@ extern int pthread_rwlock_timedrdlock (struct __pthread_rwlock *__restrict __rwl
 	__THROWNL __nonnull ((1, 2));
 # endif
 
+# ifdef __USE_GNU
+extern int pthread_rwlock_clockrdlock (pthread_rwlock_t *__restrict __rwlock,
+				       clockid_t __clockid,
+				       const struct timespec *__restrict
+				       __abstime) __THROWNL __nonnull ((1, 3));
+# endif
+
 /* Acquire the rwlock *RWLOCK for writing.  */
 extern int pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock)
 	__THROWNL __nonnull ((1));
@@ -639,6 +694,13 @@ extern int pthread_rwlock_timedwrlock (struct __pthread_rwlock *__restrict __rwl
 	__THROWNL __nonnull ((1, 2));
 # endif
 
+# ifdef __USE_GNU
+extern int pthread_rwlock_clockwrlock (pthread_rwlock_t *__restrict __rwlock,
+				       clockid_t __clockid,
+				       const struct timespec *__restrict
+				       __abstime) __THROWNL __nonnull ((1, 3));
+# endif
+
 /* Release the lock held by the current thread on *RWLOCK.  */
 extern int pthread_rwlock_unlock (pthread_rwlock_t *__rwlock)
 	__THROWNL __nonnull ((1));
diff --git a/sysdeps/htl/pthreadP.h b/sysdeps/htl/pthreadP.h
index 1726ebb122..7486c9383e 100644
--- a/sysdeps/htl/pthreadP.h
+++ b/sysdeps/htl/pthreadP.h
@@ -50,6 +50,11 @@ extern int __pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex);
 extern int __pthread_cond_timedwait (pthread_cond_t *cond,
 				     pthread_mutex_t *mutex,
 				     const struct timespec *abstime);
+extern int __pthread_cond_clockwait (pthread_cond_t *cond,
+				     pthread_mutex_t *mutex,
+				     clockid_t clockid,
+				     const struct timespec *abstime)
+  __nonnull ((1, 2, 4));
 extern int __pthread_cond_destroy (pthread_cond_t *cond);
 
 typedef struct __cthread *__cthread_t;