/* Copyright (C) 2002, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include <errno.h> #include <semaphore.h> #include <lowlevellock.h> #include <shlib-compat.h> #include "semaphoreP.h" #include <kernel-features.h> int __new_sem_init (sem, pshared, value) sem_t *sem; int pshared; unsigned int value; { /* Parameter sanity check. */ if (__builtin_expect (value > SEM_VALUE_MAX, 0)) { __set_errno (EINVAL); return -1; } /* Map to the internal type. */ struct new_sem *isem = (struct new_sem *) sem; /* Use the values the user provided. */ isem->value = value; #ifdef __ASSUME_PRIVATE_FUTEX isem->private = pshared ? 0 : FUTEX_PRIVATE_FLAG; #else isem->private = pshared ? 0 : THREAD_GETMEM (THREAD_SELF, header.private_futex); #endif isem->nwaiters = 0; return 0; } versioned_symbol (libpthread, __new_sem_init, sem_init, GLIBC_2_1); #if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) int attribute_compat_text_section __old_sem_init (sem, pshared, value) sem_t *sem; int pshared; unsigned int value; { /* Parameter sanity check. */ if (__builtin_expect (value > SEM_VALUE_MAX, 0)) { __set_errno (EINVAL); return -1; } /* Map to the internal type. */ struct old_sem *isem = (struct old_sem *) sem; /* Use the value the user provided. */ isem->value = value; /* We cannot store the PSHARED attribute. So we always use the operations needed for shared semaphores. */ return 0; } compat_symbol (libpthread, __old_sem_init, sem_init, GLIBC_2_0); #endif