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9ec31e5727
The __hurd_fail () inline function is the dedicated, idiomatic way of
reporting errors in the Hurd part of glibc. Not only is it more concise
than '{ errno = err; return -1; }', it is since commit
6639cc1002
"hurd: Mark error functions as __COLD" marked with the cold attribute,
telling the compiler that this codepath is unlikely to be executed.
In one case, use __hurd_dfail () over the plain __hurd_fail ().
Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
Message-Id: <20230520115531.3911877-1-bugaevc@gmail.com>
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/* Copyright (C) 1993-2023 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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#include <errno.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <hurd.h>
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#include <hurd/fd.h>
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#include "dirstream.h"
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/* Close the directory stream DIRP.
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Return 0 if successful, -1 if not. */
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int
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__closedir (DIR *dirp)
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{
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error_t err;
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if (dirp == NULL)
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return __hurd_fail (EINVAL);
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__libc_lock_lock (dirp->__lock);
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err = __vm_deallocate (__mach_task_self (),
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(vm_address_t) dirp->__data, dirp->__allocation);
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dirp->__data = NULL;
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err = _hurd_fd_close (dirp->__fd);
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if (err)
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{
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/* Unlock the DIR. A failing closedir can be repeated (and may fail
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again, but shouldn't deadlock). */
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__libc_lock_unlock (dirp->__lock);
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return __hurd_fail (err);
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}
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/* Clean up the lock and free the structure. */
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__libc_lock_fini (dirp->__lock);
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free (dirp);
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return 0;
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}
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weak_alias (__closedir, closedir)
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