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mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
2004-03-18  Ulrich Drepper  <drepper@redhat.com>

	* posix/sched.h: Change sched_getaffinity and sched_setaffinity
	interfaces: add new second parameter.
	* sysdeps/generic/sched_getaffinity.c: Implement interface change.
	* sysdeps/generic/sched_setaffinity.c: Likewise.
	* sysdeps/unix/sysv/linux/sched_getaffinity.c: Likewise.  Add
	compatibility interface.
	* sysdeps/unix/sysv/linux/sched_setaffinity.c: Likewise.
	* sysdeps/unix/sysv/linux/Versions: Add versions for changed
	interfaces.
This commit is contained in:
Ulrich Drepper
2004-03-19 00:14:42 +00:00
parent 701a7b234e
commit 439ff07be0
18 changed files with 326 additions and 125 deletions

View File

@ -1,4 +1,4 @@
/* Copyright (C) 2003 Free Software Foundation, Inc.
/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
@ -18,27 +18,43 @@
02111-1307 USA. */
#include <errno.h>
#include <limits.h>
#include <pthreadP.h>
#include <string.h>
#include <sysdep.h>
#include <sys/param.h>
#include <sys/types.h>
#include <shlib-compat.h>
int
pthread_getaffinity_np (th, cpuset)
pthread_t th;
cpu_set_t *cpuset;
__pthread_getaffinity_new (pthread_t th, size_t cpusetsize, cpu_set_t *cpuset)
{
struct pthread *pd = (struct pthread *) th;
const struct pthread *pd = (const struct pthread *) th;
INTERNAL_SYSCALL_DECL (err);
int res = INTERNAL_SYSCALL (sched_getaffinity, err, 3, pd->tid,
sizeof (cpu_set_t), cpuset);
MIN (UINT_MAX, cpusetsize), cpuset);
if (INTERNAL_SYSCALL_ERROR_P (res, err))
return INTERNAL_SYSCALL_ERRNO (res, err);
/* Clean the rest of the memory the kernel didn't do. */
memset ((char *) cpuset + res, '\0', sizeof (cpu_set_t) - res);
memset ((char *) cpuset + res, '\0', cpusetsize - res);
return 0;
}
hidden_def (pthread_getaffinity_np)
strong_alias (__pthread_getaffinity_new, __pthread_getaffinity_np)
versioned_symbol (libpthread, __pthread_getaffinity_new,
pthread_getaffinity_np, GLIBC_2_3_4);
#if SHLIB_COMPAT(libpthread, 2_3_3, 2_3_4)
int
__pthread_getaffinity_old (const pthread_attr_t *attr, cpu_set_t *cpuset)
{
/* The old interface by default assumed a 1024 processor bitmap. */
return __pthread_getaffinity_new (attr, 128, cpuset);
}
compat_symbol (libpthread, __pthread_getaffinity_old, pthread_getaffinity_np,
GLIBC_2_3_3);
#endif