diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/x86_64/timer_create.c')
| -rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/x86_64/timer_create.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/x86_64/timer_create.c b/REORG.TODO/sysdeps/unix/sysv/linux/x86_64/timer_create.c new file mode 100644 index 0000000000..7fbe9618b4 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/x86_64/timer_create.c @@ -0,0 +1,65 @@ +/* Copyright (C) 2003-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. + + 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; see the file COPYING.LIB. If + not, see <http://www.gnu.org/licenses/>. */ + +#include <shlib-compat.h> +#include "compat-timer.h" +#include <atomic.h> + + +#define timer_create_alias __timer_create_new +#include <sysdeps/unix/sysv/linux/timer_create.c> + +#undef timer_create +versioned_symbol (librt, __timer_create_new, timer_create, GLIBC_2_3_3); + + +#if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3) +timer_t __compat_timer_list[OLD_TIMER_MAX] attribute_hidden; + + +int +__timer_create_old (clockid_t clock_id, struct sigevent *evp, int *timerid) +{ + timer_t newp; + + int res = __timer_create_new (clock_id, evp, &newp); + if (res == 0) + { + int i; + for (i = 0; i < OLD_TIMER_MAX; ++i) + if (__compat_timer_list[i] == NULL + && ! atomic_compare_and_exchange_bool_acq (&__compat_timer_list[i], + newp, NULL)) + { + *timerid = i; + break; + } + + if (__glibc_unlikely (i == OLD_TIMER_MAX)) + { + /* No free slot. */ + (void) __timer_delete_new (newp); + __set_errno (EINVAL); + res = -1; + } + } + + return res; +} +compat_symbol (librt, __timer_create_old, timer_create, GLIBC_2_2); +#endif |