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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
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23
sysdeps/unix/sysv/linux/sched_getaffinity.c
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@ -1,4 +1,4 @@
/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -21,25 +21,38 @@
#include <string.h>
#include <sysdep.h>
#include <sys/types.h>
#include <shlib-compat.h>
#ifdef __NR_sched_getaffinity
int
sched_getaffinity (pid, cpuset)
pid_t pid;
cpu_set_t *cpuset;
__sched_getaffinity_new (pid_t pid, size_t cpusetsize, cpu_set_t *cpuset)
{
int res = INLINE_SYSCALL (sched_getaffinity, 3, pid, sizeof (cpu_set_t),
cpuset);
if (res != -1)
{
/* 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);
res = 0;
}
return res;
}
versioned_symbol (libc, __sched_getaffinity_new, sched_getaffinity,
GLIBC_2_3_4);
# if SHLIB_COMPAT(libc, 2_3_3, 2_3_4)
int
attribute_compat_text_section
__sched_getaffinity_old (const pthread_attr_t *attr, cpu_set_t *cpuset)
{
/* The old interface by default assumed a 1024 processor bitmap. */
return __sched_getaffinity_new (attr, 128, cpuset);
}
compat_symbol (libc, __sched_getaffinity_old, sched_getaffinity, GLIBC_2_3_3);
# endif
#else
# include <sysdeps/generic/sched_getaffinity.c>
#endif