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#pragma once
#include <kernel/types.h>
#include <stddef.h>
#define FD_MAX 16
typedef int fd_t; // TODO duplicated in syscalls.h
enum fd_type {
FD_EMPTY,
FD_SPECIAL_TTY,
};
struct fd {
enum fd_type type;
};
enum fdop { // describes the operations which can be done on file descriptors
FDOP_MOUNT, // also closes the original fd
FDOP_READ,
FDOP_WRITE,
FDOP_CLOSE,
};
struct fdop_args {
enum fdop type;
struct fd *fd;
union {
struct { // FDOP_MOUNT
struct mount *target;
} mnt;
struct { // FDOP_READ, FDOP_WRITE
user_ptr ptr;
size_t len;
} rw;
};
};
int fdop_dispatch(struct fdop_args args);
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