diff options
author | neal <neal> | 2007-11-20 16:35:18 +0000 |
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committer | neal <neal> | 2007-11-20 16:35:18 +0000 |
commit | e97842900458764d08636f5e1d936d83723b195a (patch) | |
tree | 3f8f166928725e4263d4c056bcf69e41bb4160d5 /libpthread/sysdeps/generic/sem-init.c | |
parent | 47315863714fa137ef8371456575eea146ce9805 (diff) |
2007-11-20 Neal H. Walfield <neal@gnu.org>
Also merge semaphore changes from mainline Hurd.
Diffstat (limited to 'libpthread/sysdeps/generic/sem-init.c')
-rw-r--r-- | libpthread/sysdeps/generic/sem-init.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/libpthread/sysdeps/generic/sem-init.c b/libpthread/sysdeps/generic/sem-init.c new file mode 100644 index 0000000..6c6d79e --- /dev/null +++ b/libpthread/sysdeps/generic/sem-init.c @@ -0,0 +1,46 @@ +/* Initialize a semaphore. Generic version. + Copyright (C) 2005 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, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <semaphore.h> +#include <errno.h> + +#include <pt-internal.h> + +int +__sem_init (sem_t *sem, int pshared, unsigned value) +{ + if (pshared != 0) + { + errno = EOPNOTSUPP; + return -1; + } + +#ifdef SEM_VALUE_MAX + if (value > SEM_VALUE_MAX) + { + errno = EINVAL; + return -1; + } +#endif + + *sem = (sem_t) __SEMAPHORE_INITIALIZER (pshared, value); + return 0; +} + +strong_alias (__sem_init, sem_init); |