diff options
Diffstat (limited to 'sysdeps/htl/pt-setspecific.c')
-rw-r--r-- | sysdeps/htl/pt-setspecific.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/sysdeps/htl/pt-setspecific.c b/sysdeps/htl/pt-setspecific.c new file mode 100644 index 0000000..8492b5d --- /dev/null +++ b/sysdeps/htl/pt-setspecific.c @@ -0,0 +1,50 @@ +/* pthread_setspecific. Generic version. + Copyright (C) 2002-2018 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, see <http://www.gnu.org/licenses/>. */ + +#include <pthread.h> + +#include <pt-internal.h> + +int +__pthread_setspecific (pthread_key_t key, const void *value) +{ + struct __pthread *self = _pthread_self (); + + if (key < 0 || key >= __pthread_key_count + || __pthread_key_destructors[key] == PTHREAD_KEY_INVALID) + return EINVAL; + + if (key >= self->thread_specifics_size) + { + /* Amortize reallocation cost. */ + int newsize = 2 * key + 1; + void **new = realloc (self->thread_specifics, + newsize * sizeof (new[0])); + if (new == NULL) + return ENOMEM; + + memset (&new[self->thread_specifics_size], 0, + (newsize - self->thread_specifics_size) * sizeof (new[0])); + self->thread_specifics = new; + self->thread_specifics_size = newsize; + } + + self->thread_specifics[key] = (void *) value; + return 0; +} +strong_alias (__pthread_setspecific, pthread_setspecific); |