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Code Activity

2006-07-28 Ulrich Drepper <drepper@redhat.com>

Browse Source 
Jakub Jelinek  <jakub@redhat.com>

	* descr.h: Change ENQUEUE_MUTEX and DEQUEUE_MUTEX for bit 0
	notification of PI mutex.  Add ENQUEUE_MUTEX_PI.
	* pthreadP.h: Define PTHREAD_MUTEX_PI_* macros for PI mutex types.
	* pthread_mutex_setprioceilining.c: Adjust for mutex type name change.
	* pthread_mutex_init.c: Add support for priority inheritance mutex.
	* pthread_mutex_lock.c: Likewise.
	* pthread_mutex_timedlock.c: Likewise.
	* pthread_mutex_trylock.c: Likewise.
	* pthread_mutex_unlock.c: Likewise.
	* sysdeps/pthread/pthread_cond_broadcast.c: For PI mutexes wake
	all mutexes.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.c: Likewise.
	* sysdeps/unix/sysv/linux/pthread-pi-defines.sym: New file.
	* sysdeps/unix/sysv/linux/Makefile (gen-as-const-header): Add
	pthread-pi-defines.sym.
	* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Define FUTEX_LOCK_PI,
	FUTEX_UNLOCK_PI, and FUTEX_TRYLOCK_PI.
	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/posix_opt.h: Define
	_POSIX_THREAD_PRIO_INHERIT to 200112L.
	* tst-mutex1.c: Adjust to allow use in PI mutex test.
	* tst-mutex2.c: Likewise.
	* tst-mutex3.c: Likewise.
	* tst-mutex4.c: Likewise.
	* tst-mutex5.c: Likewise.
	* tst-mutex6.c: Likewise.
	* tst-mutex7.c: Likewise.
	* tst-mutex7a.c: Likewise.
	* tst-mutex8.c: Likewise.
	* tst-mutex9.c: Likewise.
	* tst-robust1.c: Likewise.
	* tst-robust7.c: Likewise.
	* tst-robust8.c: Likewise.
	* tst-mutexpi1.c: New file.
	* tst-mutexpi2.c: New file.
	* tst-mutexpi3.c: New file.
	* tst-mutexpi4.c: New file.
	* tst-mutexpi5.c: New file.
	* tst-mutexpi6.c: New file.
	* tst-mutexpi7.c: New file.
	* tst-mutexpi7a.c: New file.
	* tst-mutexpi8.c: New file.
	* tst-mutexpi9.c: New file.
	* tst-robust1.c: New file.
	* tst-robust2.c: New file.
	* tst-robust3.c: New file.
	* tst-robust4.c: New file.
	* tst-robust5.c: New file.
	* tst-robust6.c: New file.
	* tst-robust7.c: New file.
	* tst-robust8.c: New file.
	* Makefile (tests): Add the new tests.

	* pthread_create.c (start_thread): Add some casts to avoid warnings.
	* pthread_mutex_destroy.c: Remove unneeded label.
This commit is contained in:
Ulrich Drepper
2006-07-29 04:42:09 +00:00
parent 6822f05652
commit df47504c78
49 changed files with 1083 additions and 89 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
nptl/pthread_mutex_init.c
View File

@ -29,6 +29,11 @@ static const struct pthread_mutexattr default_attr =
};
#ifndef __ASSUME_FUTEX_LOCK_PI
static int tpi_supported;
#endif
int
__pthread_mutex_init (mutex, mutexattr)
pthread_mutex_t *mutex;
@ -41,8 +46,7 @@ __pthread_mutex_init (mutex, mutexattr)
imutexattr = (const struct pthread_mutexattr *) mutexattr ?: &default_attr;
/* Sanity checks. */
// XXX For now we don't support priority inherited or priority protected
// XXX mutexes.
// XXX For now we don't support priority protected mutexes.
switch (__builtin_expect (imutexattr->mutexkind
& PTHREAD_MUTEXATTR_PROTOCOL_MASK,
PTHREAD_PRIO_NONE
@ -51,6 +55,22 @@ __pthread_mutex_init (mutex, mutexattr)
case PTHREAD_PRIO_NONE << PTHREAD_MUTEXATTR_PROTOCOL_SHIFT:
break;
case PTHREAD_PRIO_INHERIT << PTHREAD_MUTEXATTR_PROTOCOL_SHIFT:
#ifndef __ASSUME_FUTEX_LOCK_PI
if (__builtin_expect (tpi_supported == 0, 0))
{
int lock = 0;
INTERNAL_SYSCALL_DECL (err);
int ret = INTERNAL_SYSCALL (futex, err, 4, &lock, FUTEX_UNLOCK_PI,
0, 0);
assert (INTERNAL_SYSCALL_ERROR_P (ret, err));
tpi_supported = INTERNAL_SYSCALL_ERRNO (ret, err) == ENOSYS ? -1 : 1;
}
if (__builtin_expect (tpi_supported < 0, 0))
return ENOTSUP;
#endif
break;
default:
return ENOTSUP;
}
@ -75,11 +95,11 @@ __pthread_mutex_init (mutex, mutexattr)
switch (imutexattr->mutexkind & PTHREAD_MUTEXATTR_PROTOCOL_MASK)
{
case PTHREAD_PRIO_INHERIT << PTHREAD_MUTEXATTR_PROTOCOL_SHIFT:
mutex->__data.__kind |= PTHREAD_MUTEX_PRIO_INHERIT_PRIVATE_NP;
mutex->__data.__kind |= PTHREAD_MUTEX_PRIO_INHERIT_NP;
break;
case PTHREAD_PRIO_PROTECT << PTHREAD_MUTEXATTR_PROTOCOL_SHIFT:
mutex->__data.__kind |= PTHREAD_MUTEX_PRIO_PROTECT_PRIVATE_NP;
mutex->__data.__kind |= PTHREAD_MUTEX_PRIO_PROTECT_NP;
if (PTHREAD_MUTEX_PRIO_CEILING_MASK
== PTHREAD_MUTEXATTR_PRIO_CEILING_MASK)
mutex->__data.__kind |= (imutexattr->mutexkind