231b8518b7
Ken Pettit has submitted the ICLA and we can migrate the licenses to Apache. Sebastien Lorquet has submitted the ICLA and we can migrate the licenses to Apache. Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
90 lines
3.0 KiB
C
90 lines
3.0 KiB
C
/****************************************************************************
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* fs/hostfs/hostfs.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __FS_HOSTFS_HOSTFS_H
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#define __FS_HOSTFS_HOSTFS_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <nuttx/semaphore.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define HOSTFS_MAX_PATH 256
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* This structure describes the state of one open file. This structure
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* is protected by the volume semaphore.
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*/
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struct hostfs_ofile_s
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{
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struct hostfs_ofile_s *fnext; /* Supports a singly linked list */
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int16_t crefs; /* Reference count */
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mode_t oflags; /* Open mode */
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int fd;
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};
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/* This structure represents the overall mountpoint state. An instance of
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* this structure is retained as inode private data on each mountpoint that
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* is mounted with a hostfs filesystem.
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*/
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struct hostfs_mountpt_s
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{
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sem_t *fs_sem; /* Used to assure thread-safe access */
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FAR struct hostfs_ofile_s *fs_head; /* A singly-linked list of open files */
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char fs_root[HOSTFS_MAX_PATH];
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};
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/****************************************************************************
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* Internal function prototypes
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****************************************************************************/
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/* Semaphore access for internal use */
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int hostfs_semtake(struct hostfs_mountpt_s *fs);
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void hostfs_semgive(struct hostfs_mountpt_s *fs);
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/* Forward references for utility functions */
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struct hostfs_mountpt_s;
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struct file; /* Forward references */
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struct inode;
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struct fs_dirent_s;
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struct statfs;
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struct stat;
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#endif /* __FS_HOSTFS_HOSTFS_H */
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