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nptl: Rename lll_timedlock to lll_clocklock and add clockid parameter

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Rename lll_timedlock to lll_clocklock and add clockid
parameter to indicate the clock that the abstime parameter should
be measured against in preparation for adding
pthread_mutex_clocklock.

The name change mirrors the naming for the exposed pthread functions:

 timed => absolute timeout measured against CLOCK_REALTIME (or clock
          specified by attribute in the case of pthread_cond_timedwait.)

 clock => absolute timeout measured against clock specified in preceding
          parameter.

	* sysdeps/nptl/lowlevellock.h (lll_clocklock): Rename from
	lll_timedlock and add clockid parameter. (__lll_clocklock): Rename
	from __lll_timedlock and add clockid parameter.
	* sysdeps/unix/sysv/linux/sparc/lowlevellock.h (lll_clocklock):
	Likewise.
	* nptl/lll_timedlock_wait.c (__lll_clocklock_wait): Rename from
	__lll_timedlock_wait and add clockid parameter. Use __clock_gettime
	rather than __gettimeofday so that clockid can be used. This means
	that conversion from struct timeval is no longer required.
	* sysdeps/sparc/sparc32/lowlevellock.c (lll_clocklock_wait):
	Likewise.
	* sysdeps/sparc/sparc32/lll_timedlock_wait.c: Update comment to
	refer to __lll_clocklock_wait rather than __lll_timedlock_wait.
	* nptl/pthread_mutex_timedlock.c (lll_clocklock_elision): Rename
	from lll_timedlock_elision, add clockid parameter and use
	meaningful names for other parameters. (__pthread_mutex_timedlock):
	Pass CLOCK_REALTIME where necessary to lll_clocklock and
	lll_clocklock_elision.
	* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
	(lll_clocklock_elision): Rename from lll_timedlock_elision and add
	clockid parameter. (__lll_clocklock_elision): Rename from
	__lll_timedlock_elision and add clockid parameter.
	* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/x86/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/elision-timed.c
	(__lll_lock_elision): Call __lll_clocklock_elision rather than
	__lll_timedlock_elision. (EXTRAARG): Add clockid parameter.
	(LLL_LOCK): Likewise.
	* sysdeps/unix/sysv/linux/s390/elision-timed.c: Likewise.
	* sysdeps/unix/sysv/linux/x86/elision-timed.c: Likewise.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
Mike Crowe
2019-06-24 13:08:25 +00:00
committed by Adhemerval Zanella
parent e996fa72a9
commit 59213094c8
13 changed files with 103 additions and 54 deletions
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11
sysdeps/unix/sysv/linux/sparc/lowlevellock.h
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@@ -75,22 +75,23 @@ __lll_cond_lock (int *futex, int private)
#define lll_cond_lock(futex, private) __lll_cond_lock (&(futex), private)
extern int __lll_timedlock_wait (int *futex, const struct timespec *,
extern int __lll_clocklock_wait (int *futex, clockid_t, const struct timespec *,
int private) attribute_hidden;
static inline int
__attribute__ ((always_inline))
__lll_timedlock (int *futex, const struct timespec *abstime, int private)
__lll_clocklock (int *futex, clockid_t clockid,
const struct timespec *abstime, int private)
{
int val = atomic_compare_and_exchange_val_24_acq (futex, 1, 0);
int result = 0;
if (__glibc_unlikely (val != 0))
result = __lll_timedlock_wait (futex, abstime, private);
result = __lll_clocklock_wait (futex, clockid, abstime, private);
return result;
}
#define lll_timedlock(futex, abstime, private) \
__lll_timedlock (&(futex), abstime, private)
#define lll_clocklock(futex, clockid, abstime, private) \
__lll_clocklock (&(futex), clockid, abstime, private)
#define lll_unlock(lock, private) \
((void) ({ \