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2000-09-11  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/pthread/pthread.h: Declare pthread_attr_getstack and
	pthread_attr_setstack.
	* Versions [libpthread] (GLIBC_2.2): Export pthread_attr_getstack and
	pthread_attr_setstack.
	* attr.c (pthread_attr_getstack, pthread_attr_setstack): New functions.
This commit is contained in:
Ulrich Drepper 2000-09-11 19:13:06 +00:00
parent 72c65ff44b
commit b81c896174
4 changed files with 59 additions and 0 deletions
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8
linuxthreads/ChangeLog
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@ -1,3 +1,11 @@
2000-09-11 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h: Declare pthread_attr_getstack and
pthread_attr_setstack.
* Versions [libpthread] (GLIBC_2.2): Export pthread_attr_getstack and
pthread_attr_setstack.
* attr.c (pthread_attr_getstack, pthread_attr_setstack): New functions.
2000-09-05 Ulrich Drepper <drepper@redhat.com>
* Examples/ex14.c: New file.

1
linuxthreads/Versions
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@ -139,6 +139,7 @@ libpthread {
# New functions from IEEE Std. 1003.1-200x.
sem_timedwait;
pthread_attr_getstack; pthread_attr_setstack;
pthread_spin_destroy; pthread_spin_init; pthread_spin_lock;
pthread_spin_trylock; pthread_spin_unlock;
pthread_getcpuclockid;

37
linuxthreads/attr.c
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@ -22,6 +22,7 @@
#include "pthread.h"
#include "internals.h"
#include <shlib-compat.h>
#include <stackinfo.h>
int __pthread_attr_init_2_1(pthread_attr_t *attr)
{
@ -224,3 +225,39 @@ int __pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize)
return 0;
}
weak_alias (__pthread_attr_getstacksize, pthread_attr_getstacksize)
int __pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr,
size_t stacksize)
{
int err;
if ((((uintptr_t) stackaddr)
& ~__alignof__ (struct _pthread_descr_struct)) != 0)
err = EINVAL;
else
err = __pthread_attr_setstacksize (attr, stacksize);
if (err == 0)
{
#ifdef _STACK_GROWS_UP
attr->__stackaddr = (char *) stackaddr + stacksize;
#else
attr->__stackaddr = stackaddr;
#endif
attr->__stackaddr_set = 1;
}
return err;
}
weak_alias (__pthread_attr_setstack, pthread_attr_setstack)
int __pthread_attr_getstack (const pthread_attr_t *attr, void **stackaddr,
size_t *stacksize)
{
/* XXX This function has a stupid definition. The standard specifies
no error value but what is if no stack address was set? We simply
return the value we have in the member. */
*stackaddr = attr->__stackaddr;
*stacksize = attr->__stacksize;
return 0;
}
weak_alias (__pthread_attr_getstack, pthread_attr_getstack)

13
linuxthreads/sysdeps/pthread/pthread.h
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@ -264,6 +264,19 @@ extern int pthread_attr_getstackaddr (__const pthread_attr_t *__restrict
__attr, void **__restrict __stackaddr)
__THROW;
#ifdef __USE_XOPEN2K
/* The following two interfaces are intended to replace the last two. They
require setting the address as well as the size since only setting the
address will make the implementation on some architectures impossible. */
extern int pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr,
size_t __stacksize) __THROW;
/* Return the previously set address for the stack. */
extern int pthread_attr_getstack (__const pthread_attr_t *__restrict __attr,
void **__restrict __stackaddr,
size_t *__restrict __stacksize) __THROW;
#endif
/* Add information about the minimum stack size needed for the thread
to be started. This size must never be less than PTHREAD_STACK_SIZE
and must also not exceed the system limits. */