1*10465441SEvalZero /* 2*10465441SEvalZero * Copyright (c) 2006-2018, RT-Thread Development Team 3*10465441SEvalZero * 4*10465441SEvalZero * SPDX-License-Identifier: Apache-2.0 5*10465441SEvalZero * 6*10465441SEvalZero * Change Logs: 7*10465441SEvalZero * Date Author Notes 8*10465441SEvalZero * 2005-01-26 Bernard The first version. 9*10465441SEvalZero */ 10*10465441SEvalZero 11*10465441SEvalZero #ifndef __DFS_FILE_H__ 12*10465441SEvalZero #define __DFS_FILE_H__ 13*10465441SEvalZero 14*10465441SEvalZero #include <dfs.h> 15*10465441SEvalZero #include <dfs_fs.h> 16*10465441SEvalZero 17*10465441SEvalZero #ifdef __cplusplus 18*10465441SEvalZero extern "C" { 19*10465441SEvalZero #endif 20*10465441SEvalZero 21*10465441SEvalZero struct rt_pollreq; 22*10465441SEvalZero 23*10465441SEvalZero struct dfs_file_ops 24*10465441SEvalZero { 25*10465441SEvalZero int (*open) (struct dfs_fd *fd); 26*10465441SEvalZero int (*close) (struct dfs_fd *fd); 27*10465441SEvalZero int (*ioctl) (struct dfs_fd *fd, int cmd, void *args); 28*10465441SEvalZero int (*read) (struct dfs_fd *fd, void *buf, size_t count); 29*10465441SEvalZero int (*write) (struct dfs_fd *fd, const void *buf, size_t count); 30*10465441SEvalZero int (*flush) (struct dfs_fd *fd); 31*10465441SEvalZero int (*lseek) (struct dfs_fd *fd, off_t offset); 32*10465441SEvalZero int (*getdents) (struct dfs_fd *fd, struct dirent *dirp, uint32_t count); 33*10465441SEvalZero 34*10465441SEvalZero int (*poll) (struct dfs_fd *fd, struct rt_pollreq *req); 35*10465441SEvalZero }; 36*10465441SEvalZero 37*10465441SEvalZero /* file descriptor */ 38*10465441SEvalZero #define DFS_FD_MAGIC 0xfdfd 39*10465441SEvalZero struct dfs_fd 40*10465441SEvalZero { 41*10465441SEvalZero uint16_t magic; /* file descriptor magic number */ 42*10465441SEvalZero uint16_t type; /* Type (regular or socket) */ 43*10465441SEvalZero 44*10465441SEvalZero char *path; /* Name (below mount point) */ 45*10465441SEvalZero int ref_count; /* Descriptor reference count */ 46*10465441SEvalZero 47*10465441SEvalZero struct dfs_filesystem *fs; 48*10465441SEvalZero const struct dfs_file_ops *fops; 49*10465441SEvalZero 50*10465441SEvalZero uint32_t flags; /* Descriptor flags */ 51*10465441SEvalZero size_t size; /* Size in bytes */ 52*10465441SEvalZero off_t pos; /* Current file position */ 53*10465441SEvalZero 54*10465441SEvalZero void *data; /* Specific file system data */ 55*10465441SEvalZero }; 56*10465441SEvalZero 57*10465441SEvalZero int dfs_file_open(struct dfs_fd *fd, const char *path, int flags); 58*10465441SEvalZero int dfs_file_close(struct dfs_fd *fd); 59*10465441SEvalZero int dfs_file_ioctl(struct dfs_fd *fd, int cmd, void *args); 60*10465441SEvalZero int dfs_file_read(struct dfs_fd *fd, void *buf, size_t len); 61*10465441SEvalZero int dfs_file_getdents(struct dfs_fd *fd, struct dirent *dirp, size_t nbytes); 62*10465441SEvalZero int dfs_file_unlink(const char *path); 63*10465441SEvalZero int dfs_file_write(struct dfs_fd *fd, const void *buf, size_t len); 64*10465441SEvalZero int dfs_file_flush(struct dfs_fd *fd); 65*10465441SEvalZero int dfs_file_lseek(struct dfs_fd *fd, off_t offset); 66*10465441SEvalZero 67*10465441SEvalZero int dfs_file_stat(const char *path, struct stat *buf); 68*10465441SEvalZero int dfs_file_rename(const char *oldpath, const char *newpath); 69*10465441SEvalZero 70*10465441SEvalZero #ifdef __cplusplus 71*10465441SEvalZero } 72*10465441SEvalZero #endif 73*10465441SEvalZero 74*10465441SEvalZero #endif 75