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43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
/* Header for directory for shm/sem files.
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Copyright (C) 2014-2024 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _SHM_DIRECTORY_H
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#include <limits.h>
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#include <paths.h>
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#include <stdbool.h>
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/* The directory that contains shared POSIX objects. */
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#define SHMDIR _PATH_DEV "shm/"
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struct shmdir_name
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{
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/* The combined prefix/name. The sizeof includes the terminating
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NUL byte. 4 bytes are needed for the optional "sem." prefix. */
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char name[sizeof (SHMDIR) + 4 + NAME_MAX];
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};
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/* Sets RESULT->name to the constructed name and returns 0 on success,
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or -1 on failure. Includes the "sem." prefix in the name if
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SEM_PREFIX is true. */
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int __shm_get_name (struct shmdir_name *result, const char *name,
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bool sem_prefix);
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libc_hidden_proto (__shm_get_name)
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#endif /* shm-directory.h */
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