mirror of
https://github.com/Mathewnd/Astral.git
synced 2026-10-27 20:58:22 +00:00
Matheus
82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
#ifndef FILE_H
|
|
#define FILE_H
|
|
|
|
#include <kernel/vfs.h>
|
|
#include <mutex.h>
|
|
#include <kernel/scheduler.h>
|
|
|
|
typedef struct file_t {
|
|
vnode_t *vnode;
|
|
mutex_t mutex;
|
|
int refcount;
|
|
mode_t mode;
|
|
uintmax_t offset;
|
|
int flags;
|
|
} file_t;
|
|
|
|
typedef struct fd_t {
|
|
file_t *file;
|
|
int flags;
|
|
} fd_t;
|
|
|
|
file_t *fd_allocate();
|
|
file_t *fd_get(int fd);
|
|
void fd_release(file_t *file);
|
|
int fd_new(int flags, file_t **file, int *fd);
|
|
int fd_close(int fd);
|
|
int fd_dup(int oldfd, int newfd, bool exact, int flags, int *ret);
|
|
int fd_clone(proc_t *proc);
|
|
int fd_setflags(int fd, int flags);
|
|
int fd_getflags(int fd, int *flags);
|
|
int fd_insert(file_t *file, int *fdp, int flags);
|
|
|
|
#define FILE_LOCK(x) MUTEX_ACQUIRE(&(x)->mutex)
|
|
#define FILE_UNLOCK(x) MUTEX_RELEASE(&(x)->mutex)
|
|
|
|
#define FILE_READ 1
|
|
#define FILE_WRITE 2
|
|
#define FILE_KNOWN_FLAGS 3
|
|
|
|
#define O_RDONLY 0
|
|
#define O_WRONLY 1
|
|
#define O_RDWR 2
|
|
|
|
#define AT_FDCWD -100
|
|
#define O_CREAT 0100
|
|
#define O_EXCL 0200
|
|
#define O_NOCTTY 0400
|
|
#define O_TRUNC 01000
|
|
#define O_APPEND 02000
|
|
#define O_NONBLOCK 04000
|
|
#define O_DSYNC 010000
|
|
#define O_ASYNC 020000
|
|
#define O_DIRECT 040000
|
|
#define O_LARGEFILE 0100000
|
|
#define O_DIRECTORY 0200000
|
|
#define O_NOFOLLOW 0400000
|
|
#define O_NOATIME 01000000
|
|
#define O_CLOEXEC 02000000
|
|
#define O_SYNC 04010000
|
|
#define O_RSYNC 04010000
|
|
#define O_TMPFILE 020000000
|
|
|
|
static inline int fileflagstovnodeflags(int flags) {
|
|
int vnflags = 0;
|
|
if (flags & FILE_READ)
|
|
vnflags |= V_FFLAGS_READ;
|
|
if (flags & FILE_WRITE)
|
|
vnflags |= V_FFLAGS_WRITE;
|
|
if (flags & O_NONBLOCK)
|
|
vnflags |= V_FFLAGS_NONBLOCKING;
|
|
if (flags & O_NOCTTY)
|
|
vnflags |= V_FFLAGS_NOCTTY;
|
|
if (flags & (O_DIRECT | O_SYNC | O_DSYNC))
|
|
vnflags |= V_FFLAGS_NOCACHE;
|
|
|
|
return vnflags;
|
|
}
|
|
|
|
#define FDTABLE_LIMIT 256
|
|
|
|
#endif
|