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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
parent02802fafcf6e11ea3f998f685035ffe568dfddeb (diff)
downloadglibc-28cada041811fe49c8da1eb7ffdbc949719f9009.tar.xz
glibc-28cada041811fe49c8da1eb7ffdbc949719f9009.zip
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.
-rw-r--r--htl/Versions7
-rw-r--r--htl/pt-join.c62
-rw-r--r--hurd/hurdlock.c12
-rw-r--r--nptl/Makefile16
-rw-r--r--nptl/tst-mutex8.c (renamed from sysdeps/pthread/tst-mutex8.c)0
-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
-rw-r--r--sysdeps/mach/hurd/htl/pt-mutex-timedlock.c20
-rw-r--r--sysdeps/mach/hurd/i386/libpthread.abilist7
-rw-r--r--sysdeps/pthread/Makefile14
-rw-r--r--sysdeps/pthread/tst-abstime.c (renamed from nptl/tst-abstime.c)0
-rw-r--r--sysdeps/pthread/tst-join10.c (renamed from nptl/tst-join10.c)0
-rw-r--r--sysdeps/pthread/tst-join11.c (renamed from nptl/tst-join11.c)0
-rw-r--r--sysdeps/pthread/tst-join12.c (renamed from nptl/tst-join12.c)0
-rw-r--r--sysdeps/pthread/tst-join13.c (renamed from nptl/tst-join13.c)0
-rw-r--r--sysdeps/pthread/tst-join14.c (renamed from nptl/tst-join14.c)0
-rw-r--r--sysdeps/pthread/tst-join2.c (renamed from nptl/tst-join2.c)0
-rw-r--r--sysdeps/pthread/tst-join3.c (renamed from nptl/tst-join3.c)0
-rw-r--r--sysdeps/pthread/tst-join8.c (renamed from nptl/tst-join8.c)0
-rw-r--r--sysdeps/pthread/tst-join9.c (renamed from nptl/tst-join9.c)0
-rw-r--r--sysdeps/pthread/tst-mutex-errorcheck.c (renamed from nptl/tst-mutex-errorcheck.c)0
-rw-r--r--sysdeps/pthread/tst-mutex11.c (renamed from nptl/tst-mutex11.c)0
-rw-r--r--sysdeps/pthread/tst-mutex5.c (renamed from nptl/tst-mutex5.c)0
-rw-r--r--sysdeps/pthread/tst-mutex7.c (renamed from nptl/tst-mutex7.c)0
-rw-r--r--sysdeps/pthread/tst-mutex7robust.c (renamed from nptl/tst-mutex7robust.c)0
-rw-r--r--sysdeps/pthread/tst-mutex9.c (renamed from nptl/tst-mutex9.c)0
-rw-r--r--sysdeps/pthread/tst-pthread-mutexattr.c (renamed from nptl/tst-pthread-mutexattr.c)0
-rw-r--r--sysdeps/pthread/tst-rwlock12.c (renamed from nptl/tst-rwlock12.c)0
-rw-r--r--sysdeps/pthread/tst-rwlock14.c (renamed from nptl/tst-rwlock14.c)0
35 files changed, 236 insertions, 40 deletions
diff --git a/htl/Versions b/htl/Versions
index a0962e6a42..5fa9ef637c 100644
--- a/htl/Versions
+++ b/htl/Versions
@@ -151,10 +151,17 @@ libpthread {
cnd_broadcast; cnd_destroy; cnd_init; cnd_signal; cnd_timedwait; cnd_wait;
tss_create; tss_delete; tss_get; tss_set;
+ pthread_cond_clockwait;
+
pthread_mutexattr_getrobust; pthread_mutexattr_getrobust_np;
pthread_mutexattr_setrobust; pthread_mutexattr_setrobust_np;
pthread_mutex_consistent; pthread_mutex_consistent_np;
+ pthread_mutex_clocklock;
+
+ pthread_rwlock_clockrdlock; pthread_rwlock_clockwrlock;
+
+ pthread_tryjoin_np; pthread_timedjoin_np; pthread_clockjoin_np;
}
GLIBC_PRIVATE {
diff --git a/htl/pt-join.c b/htl/pt-join.c
index 0473511be9..f3d17dbc65 100644
--- a/htl/pt-join.c
+++ b/htl/pt-join.c
@@ -24,8 +24,10 @@
/* Make calling thread wait for termination of thread THREAD. Return
the exit status of the thread in *STATUS. */
-int
-__pthread_join (pthread_t thread, void **status)
+static int
+__pthread_join_common (pthread_t thread, void **status, int try,
+ clockid_t clockid,
+ const struct timespec *abstime)
{
struct __pthread *pthread;
int err = 0;
@@ -39,18 +41,30 @@ __pthread_join (pthread_t thread, void **status)
return EDEADLK;
__pthread_mutex_lock (&pthread->state_lock);
- pthread_cleanup_push ((void (*)(void *)) __pthread_mutex_unlock,
- &pthread->state_lock);
- /* Rely on pthread_cond_wait being a cancellation point to make
- pthread_join one too. */
- while (pthread->state == PTHREAD_JOINABLE)
- __pthread_cond_wait (&pthread->state_cond, &pthread->state_lock);
+ if (try == 0)
+ {
+ pthread_cleanup_push ((void (*)(void *)) __pthread_mutex_unlock,
+ &pthread->state_lock);
- pthread_cleanup_pop (0);
+ /* Rely on pthread_cond_wait being a cancellation point to make
+ pthread_join one too. */
+ while (pthread->state == PTHREAD_JOINABLE && err != ETIMEDOUT)
+ err = __pthread_cond_clockwait (&pthread->state_cond,
+ &pthread->state_lock,
+ clockid, abstime);
+
+ pthread_cleanup_pop (0);
+ }
switch (pthread->state)
{
+ case PTHREAD_JOINABLE:
+ __pthread_mutex_unlock (&pthread->state_lock);
+ if (err != ETIMEDOUT)
+ err = EBUSY;
+ break;
+
case PTHREAD_EXITED:
/* THREAD has already exited. Salvage its exit status. */
if (status != NULL)
@@ -76,4 +90,34 @@ __pthread_join (pthread_t thread, void **status)
return err;
}
+
+int
+__pthread_join (pthread_t thread, void **status)
+{
+ return __pthread_join_common (thread, status, 0, CLOCK_REALTIME, NULL);
+}
weak_alias (__pthread_join, pthread_join);
+
+int
+__pthread_tryjoin_np (pthread_t thread, void **status)
+{
+ return __pthread_join_common (thread, status, 1, CLOCK_REALTIME, NULL);
+}
+weak_alias (__pthread_tryjoin_np, pthread_tryjoin_np);
+
+int
+__pthread_timedjoin_np (pthread_t thread, void **status,
+ const struct timespec *abstime)
+{
+ return __pthread_join_common (thread, status, 0, CLOCK_REALTIME, abstime);
+}
+weak_alias (__pthread_timedjoin_np, pthread_timedjoin_np);
+
+int
+__pthread_clockjoin_np (pthread_t thread, void **status,
+ clockid_t clockid,
+ const struct timespec *abstime)
+{
+ return __pthread_join_common (thread, status, 0, clockid, abstime);
+}
+weak_alias (__pthread_clockjoin_np, pthread_clockjoin_np);
diff --git a/hurd/hurdlock.c b/hurd/hurdlock.c
index 50da0a2121..59d017fc02 100644
--- a/hurd/hurdlock.c
+++ b/hurd/hurdlock.c
@@ -47,6 +47,9 @@ int
__lll_abstimed_wait (void *ptr, int val,
const struct timespec *tsp, int flags, int clk)
{
+ if (clk != CLOCK_REALTIME)
+ return EINVAL;
+
int mlsec = compute_reltime (tsp, clk);
return mlsec < 0 ? KERN_TIMEDOUT : lll_timed_wait (ptr, val, mlsec, flags);
}
@@ -55,6 +58,9 @@ int
__lll_abstimed_xwait (void *ptr, int lo, int hi,
const struct timespec *tsp, int flags, int clk)
{
+ if (clk != CLOCK_REALTIME)
+ return EINVAL;
+
int mlsec = compute_reltime (tsp, clk);
return mlsec < 0 ? KERN_TIMEDOUT : lll_timed_xwait (ptr, lo, hi, mlsec,
flags);
@@ -64,6 +70,9 @@ int
__lll_abstimed_lock (void *ptr,
const struct timespec *tsp, int flags, int clk)
{
+ if (clk != CLOCK_REALTIME)
+ return EINVAL;
+
if (lll_trylock (ptr) == 0)
return 0;
@@ -147,6 +156,9 @@ __lll_robust_abstimed_lock (void *ptr,
int wait_time = 25;
unsigned int val;
+ if (clk != CLOCK_REALTIME)
+ return EINVAL;
+
while (1)
{
val = *iptr;
diff --git a/nptl/Makefile b/nptl/Makefile
index 587b241367..0d07d6cccb 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -259,8 +259,8 @@ CFLAGS-tst-minstack-throw.o = -std=gnu++11
LDLIBS-tst-minstack-throw = -lstdc++
tests = tst-attr2 tst-attr3 tst-default-attr \
- tst-mutex5 tst-mutex7 tst-mutex9 tst-mutex11 tst-mutex5a tst-mutex7a \
- tst-mutex7robust tst-mutexpi1 tst-mutexpi2 tst-mutexpi3 tst-mutexpi4 \
+ tst-mutex5a tst-mutex7a \
+ tst-mutexpi1 tst-mutexpi2 tst-mutexpi3 tst-mutexpi4 \
tst-mutexpi5 tst-mutexpi5a tst-mutexpi6 tst-mutexpi7 tst-mutexpi7a \
tst-mutexpi9 \
tst-cond11 tst-cond20 tst-cond21 tst-cond22 tst-cond26 tst-cond27 \
@@ -268,16 +268,13 @@ tests = tst-attr2 tst-attr3 tst-default-attr \
tst-robustpi6 tst-robustpi7 tst-robustpi9 \
tst-rwlock2 tst-rwlock2a tst-rwlock2b tst-rwlock3 \
tst-rwlock6 tst-rwlock7 tst-rwlock8 \
- tst-rwlock9 tst-rwlock10 tst-rwlock11 tst-rwlock12 \
- tst-rwlock14 tst-rwlock15 tst-rwlock17 tst-rwlock18 \
+ tst-rwlock9 tst-rwlock10 tst-rwlock11 \
+ tst-rwlock15 tst-rwlock17 tst-rwlock18 \
tst-once5 \
tst-sem5 tst-sem17 \
tst-align tst-align3 \
tst-kill1 tst-kill2 tst-kill3 tst-kill4 tst-kill5 tst-kill6 \
tst-raise1 \
- tst-join2 tst-join3 \
- tst-join8 tst-join9 tst-join10 tst-join11 tst-join12 tst-join13 \
- tst-join14 \
tst-detach1 \
tst-eintr2 tst-eintr3 tst-eintr4 tst-eintr5 \
tst-tsd1 tst-tsd2 tst-tsd3 tst-tsd4 tst-tsd5 tst-tsd6 \
@@ -301,7 +298,7 @@ tests = tst-attr2 tst-attr3 tst-default-attr \
tst-exit1 tst-exit2 tst-exit3 \
tst-stdio1 tst-stdio2 \
tst-stack1 tst-stack2 tst-stack3 tst-stack4 \
- tst-pthread-attr-affinity tst-pthread-mutexattr \
+ tst-pthread-attr-affinity \
tst-unload \
tst-dlsym1 \
tst-sysconf \
@@ -312,14 +309,13 @@ tests = tst-attr2 tst-attr3 tst-default-attr \
tst-context1 \
tst-sched1 \
tst-backtrace1 \
- tst-abstime \
tst-vfork1 tst-vfork2 tst-vfork1x tst-vfork2x \
tst-getpid3 \
tst-setuid3 \
tst-initializers1 $(addprefix tst-initializers1-,\
c89 gnu89 c99 gnu99 c11 gnu11) \
tst-bad-schedattr \
- tst-thread_local1 tst-mutex-errorcheck \
+ tst-thread_local1 \
tst-robust-fork tst-create-detached tst-memstream \
tst-thread-exit-clobber tst-minstack-cancel tst-minstack-exit \
tst-minstack-throw \
diff --git a/sysdeps/pthread/tst-mutex8.c b/nptl/tst-mutex8.c
index 8e56ea5a3a..8e56ea5a3a 100644
--- a/sysdeps/pthread/tst-mutex8.c
+++ b/nptl/tst-mutex8.c
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_rwl