diff options
Diffstat (limited to 'nuttx/fs/fs_close.c')
-rw-r--r-- | nuttx/fs/fs_close.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/nuttx/fs/fs_close.c b/nuttx/fs/fs_close.c deleted file mode 100644 index 7f08995de..000000000 --- a/nuttx/fs/fs_close.c +++ /dev/null @@ -1,133 +0,0 @@ -/**************************************************************************** - * fs/fs_close.c - * - * Copyright (C) 2007-2009, 2012 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <unistd.h> -#include <sched.h> -#include <errno.h> -#include <nuttx/fs/fs.h> - -#if defined(CONFIG_NET) && CONFIG_NSOCKET_DESCRIPTORS > 0 -# include <nuttx/net/net.h> -#endif - -#include "fs_internal.h" - -/**************************************************************************** - * Global Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: close - * - * Description: - * close() closes a file descriptor, so that it no longer refers to any - * file and may be reused. Any record locks (see fcntl(2)) held on the file - * it was associated with, and owned by the process, are removed (regardless - * of the file descriptor that was used to obtain the lock). - * - * If fd is the last copy of a particular file descriptor the resources - * associated with it are freed; if the descriptor was the last reference - * to a file which has been removed using unlink(2) the file is deleted. - * - * Parameters: - * fd file descriptor to close - * - * Returned Value: - * 0 on success; -1 on error with errno set appropriately. - * - * Assumptions: - * - ****************************************************************************/ - -int close(int fd) -{ - int err; -#if CONFIG_NFILE_DESCRIPTORS > 0 - int ret; - - /* Did we get a valid file descriptor? */ - - if ((unsigned int)fd >= CONFIG_NFILE_DESCRIPTORS) -#endif - { - /* Close a socket descriptor */ - -#if defined(CONFIG_NET) && CONFIG_NSOCKET_DESCRIPTORS > 0 - if ((unsigned int)fd < (CONFIG_NFILE_DESCRIPTORS+CONFIG_NSOCKET_DESCRIPTORS)) - { - return net_close(fd); - } - else -#endif - { - err = EBADF; - goto errout; - } - } - -#if CONFIG_NFILE_DESCRIPTORS > 0 - /* Close the driver or mountpoint. NOTES: (1) there is no - * exclusion mechanism here , the driver or mountpoint must be - * able to handle concurrent operations internally, (2) The driver - * may have been opened numerous times (for different file - * descriptors) and must also handle being closed numerous times. - * (3) for the case of the mountpoint, we depend on the close - * methods bing identical in signature and position in the operations - * vtable. - */ - - ret = files_close(fd); - if (ret < 0) - { - /* An error occurred while closing the driver */ - - err = -ret; - goto errout; - } - return OK; - -#endif - -errout: - set_errno(err); - return ERROR; -} - |