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* sysdeps/unix/sysv/linux/kernel-features.h: Add

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__ASSUME_SET_ROBUST_LIST.
This commit is contained in:
Ulrich Drepper
2006-03-28 04:25:17 +00:00
parent 5b20043897
commit 0f6699ea05
16 changed files with 520 additions and 123 deletions
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17
nptl/pthread_mutex_init.c
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@@ -22,7 +22,6 @@
#include <string.h>
#include "pthreadP.h"
static const struct pthread_mutexattr default_attr =
{
/* Default is a normal mutex, not shared between processes. */
@@ -42,10 +41,6 @@ __pthread_mutex_init (mutex, mutexattr)
imutexattr = (const struct pthread_mutexattr *) mutexattr ?: &default_attr;
/* Sanity checks. */
// XXX For now we cannot implement robust mutexes if they are shared.
if ((imutexattr->mutexkind & PTHREAD_MUTEXATTR_FLAG_ROBUST) != 0
&& (imutexattr->mutexkind & PTHREAD_MUTEXATTR_FLAG_PSHARED) != 0)
return ENOTSUP;
// XXX For now we don't support priority inherited or priority protected
// XXX mutexes.
if ((imutexattr->mutexkind & PTHREAD_MUTEXATTR_PROTOCOL_MASK)
@@ -57,8 +52,18 @@ __pthread_mutex_init (mutex, mutexattr)
/* Copy the values from the attribute. */
mutex->__data.__kind = imutexattr->mutexkind & ~PTHREAD_MUTEXATTR_FLAG_BITS;
if ((imutexattr->mutexkind & PTHREAD_MUTEXATTR_FLAG_ROBUST) != 0)
mutex->__data.__kind |= PTHREAD_MUTEX_ROBUST_PRIVATE_NP;
{
#ifndef __ASSUME_SET_ROBUST_LIST
if ((imutexattr->mutexkind & PTHREAD_MUTEXATTR_FLAG_PSHARED) != 0
&& __set_robust_list_avail < 0)
return ENOTSUP;
#endif
mutex->__data.__kind |= PTHREAD_MUTEX_ROBUST_NORMAL_NP;
}
switch ((imutexattr->mutexkind & PTHREAD_MUTEXATTR_PROTOCOL_MASK)
>> PTHREAD_MUTEXATTR_PROTOCOL_SHIFT)
{