установить / получить атрибут адреса стека в объекте атрибутов потока (set/get stack address attribute in thread attributes object)
Имя (Name)
pthread_attr_setstackaddr, pthread_attr_getstackaddr - set/get
stack address attribute in thread attributes object
Синопсис (Synopsis)
#include <pthread.h>
int pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr);
int pthread_attr_getstackaddr(const pthread_attr_t *restrict attr,
void **restrict stackaddr);
Compile and link with -pthread.
Описание (Description)
These functions are obsolete: do not use them. Use
pthread_attr_setstack(3) and pthread_attr_getstack(3) instead.
The pthread_attr_setstackaddr() function sets the stack address
attribute of the thread attributes object referred to by attr to
the value specified in stackaddr. This attribute specifies the
location of the stack that should be used by a thread that is
created using the thread attributes object attr.
stackaddr should point to a buffer of at least PTHREAD_STACK_MIN
bytes that was allocated by the caller. The pages of the
allocated buffer should be both readable and writable.
The pthread_attr_getstackaddr() function returns the stack
address attribute of the thread attributes object referred to by
attr in the buffer pointed to by stackaddr.
Возвращаемое значение (Return value)
On success, these functions return 0; on error, they return a
nonzero error number.
Ошибки (Error)
No errors are defined (but applications should nevertheless
handle a possible error return).
Версии (Versions)
These functions are provided by glibc since version 2.1.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│pthread_attr_setstackaddr(), │ Thread safety │ MT-Safe │
│pthread_attr_getstackaddr() │ │ │
└──────────────────────────────────────┴───────────────┴─────────┘
Стандарты (Conforming to)
POSIX.1-2001 specifies these functions but marks them as
obsolete. POSIX.1-2008 removes the specification of these
functions.
Примечание (Note)
Do not use these functions! They cannot be portably used, since
they provide no way of specifying the direction of growth or the
range of the stack. For example, on architectures with a stack
that grows downward, stackaddr specifies the next address past
the highest address of the allocated stack area. However, on
architectures with a stack that grows upward, stackaddr specifies
the lowest address in the allocated stack area. By contrast, the
stackaddr used by pthread_attr_setstack(3) and
pthread_attr_getstack(3), is always a pointer to the lowest
address in the allocated stack area (and the stacksize argument
specifies the range of the stack).
Смотри также (See also)
pthread_attr_init(3), pthread_attr_setstack(3),
pthread_attr_setstacksize(3), pthread_create(3), pthreads(7)
