138 lines
3.3 KiB
C
138 lines
3.3 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* fs.h :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/05/19 15:12:18 by maiboyer #+# #+# */
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/* Updated: 2024/05/24 15:03:40 by maiboyer ### ########.fr */
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/* */
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/* ************************************************************************** */
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#ifndef FS_H
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#define FS_H
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#include "me/types.h"
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#include <dirent.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <sys/types.h>
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#if (!defined(FILE_SLOT_LEN)) || FILE_SLOT_LEN < 64
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# ifdef FILE_SLOT_LEN
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# undef FILE_SLOT_LEN
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# endif
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# define FILE_SLOT_LEN 512
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#endif
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enum e_file_slot_kind
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{
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SLOT_UNUSED = 0 << 0,
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SLOT_FD = 1 << 0,
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SLOT_DIR = 1 << 1,
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SLOT_FILE = 1 << 2,
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};
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typedef enum e_fd_type
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{
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FD_FILE = 1 << 0,
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FD_PIPE = 1 << 1,
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FD_SOCK = 1 << 2,
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FD_UNKNOWN = 1 << 7,
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} t_fd_type;
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typedef enum e_fd_perm
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{
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FD_READ = 1 << 0,
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FD_WRITE = 1 << 1,
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} t_fd_perm;
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typedef enum e_file_open_option
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{
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FD_CREATE = O_CREAT,
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FD_EXCLUSIVE = O_EXCL,
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FD_CLOSE_ON_EXEC = O_CLOEXEC,
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FD_TRUNCATE = O_TRUNC,
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FD_NON_BLOCKING = O_NONBLOCK,
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} t_file_open_option;
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typedef enum e_file_perm
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{
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FP_OEXEC = 1 << 0,
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FP_OWRITE = 1 << 1,
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FP_OREAD = 1 << 2,
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FP_GEXEC = 1 << 3,
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FP_GWRITE = 1 << 3,
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FP_GREAD = 1 << 5,
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FP_UEXEC = 1 << 6,
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FP_UWRITE = 1 << 7,
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FP_UREAD = 1 << 8,
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FP_ALL_READ = FP_UREAD | FP_GREAD | FP_OREAD,
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FP_ALL_WRITE = FP_UWRITE | FP_GWRITE | FP_OWRITE,
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FP_ALL_EXEC = FP_UEXEC | FP_GEXEC | FP_OEXEC,
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FP_DEFAULT = FP_UWRITE | FP_ALL_READ,
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FP_DEFAULT_EXEC = FP_UWRITE | FP_ALL_EXEC | FP_ALL_READ,
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} t_file_perm;
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typedef struct s_fd
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{
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t_str name;
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int fd;
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t_fd_perm perms;
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t_fd_type type;
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} t_fd;
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typedef struct s_dir
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{
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DIR *ptr;
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t_str name;
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} t_dir;
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typedef struct s_file
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{
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FILE *ptr;
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t_str name;
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} t_file;
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union u_file_slot {
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t_fd fd;
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t_dir dir;
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t_file file;
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};
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struct s_file_slot
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{
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enum e_file_slot_kind ty;
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union u_file_slot slot;
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};
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typedef struct s_fd_array
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{
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struct s_file_slot storage[FILE_SLOT_LEN];
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} t_fd_array;
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typedef struct stat t_stat;
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typedef struct dirent *t_dir_entry;
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/// @brief Get the fd arrays object
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/// @return fd_arrays
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/// @note internal function used to get the fd arrays
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t_fd_array *get_fd_arrays(void);
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struct s_file_slot *get_unused_fd_slot(void);
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void close_all_slots(void);
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void close_slot(struct s_file_slot *slot);
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t_fd *open_fd(t_str name, t_fd_perm perms, t_file_open_option open_options,
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t_file_perm file_perm);
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t_error read_fd(t_fd *fd, t_u8 *buffer, t_usize size, t_isize *read_count);
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t_error write_fd(t_fd *fd, t_u8 *buffer, t_usize size, t_isize *read_count);
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t_error stat_fd(t_fd *fd, t_stat *stat);
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void close_fd(t_fd *fd);
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t_error open_dir(t_str name, t_dir *dir);
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t_error read_dir(t_dir *dir, t_dir_entry *out);
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t_error close_dir(t_dir *dir);
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#endif /* FS_H */
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