diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/sched_getaffinity.c')
-rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/sched_getaffinity.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/sched_getaffinity.c b/REORG.TODO/sysdeps/unix/sysv/linux/sched_getaffinity.c new file mode 100644 index 0000000000..d531d0a79f --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/sched_getaffinity.c @@ -0,0 +1,65 @@ +/* Copyright (C) 2002-2017 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <sched.h> +#include <string.h> +#include <sysdep.h> +#include <sys/param.h> +#include <sys/types.h> +#include <shlib-compat.h> + + +#ifdef __NR_sched_getaffinity +# if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4) +extern int __sched_getaffinity_new (pid_t, size_t, cpu_set_t *); +libc_hidden_proto (__sched_getaffinity_new) +# endif + +int +__sched_getaffinity_new (pid_t pid, size_t cpusetsize, cpu_set_t *cpuset) +{ + int res = INLINE_SYSCALL (sched_getaffinity, 3, pid, + MIN (INT_MAX, cpusetsize), cpuset); + if (res != -1) + { + /* Clean the rest of the memory the kernel didn't do. */ + 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, GLIBC_2_3_3, GLIBC_2_3_4) +libc_hidden_def (__sched_getaffinity_new) + +int +attribute_compat_text_section +__sched_getaffinity_old (pid_t pid, cpu_set_t *cpuset) +{ + /* The old interface by default assumed a 1024 processor bitmap. */ + return __sched_getaffinity_new (pid, 128, cpuset); +} +compat_symbol (libc, __sched_getaffinity_old, sched_getaffinity, GLIBC_2_3_3); +# endif +#else +# include <posix/sched_getaffinity.c> +#endif |